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List:       gnuradio-discuss
Subject:    [Discuss-gnuradio] N310-B210 TUN/TAP Transmit and Receive Simultaneously
From:       Ramazan_Çetin <ramazan.cetin () gohm ! com ! tr>
Date:       2019-01-25 12:25:27
Message-ID: dc19c020-8770-93ee-d0de-d38bb5df4903 () gohm ! com ! tr
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Hi all,

I am trying to setup a communication system which uses OFDM and TUN/TAP 
interface. My OFDM is working good. I used rx_ofdm and tx_ofdm examples 
and combined them. I transmitted files without errors from N310 to B210 
and B210 to N310.

But when i use the TUNTAP interface instead of file transmission, i can 
send ping (ARP packets) from N310 to B210. But i cannot send from B210 
to N310. Red LED blinks on TX of B210, so it releases packet. Also, i 
can see the packet from N310's RX side using QT Time scope. But it 
cannot be resolved on N310. The USRP log on N310 when B210 send each ARP 
packet:

INFO: Detected an invalid packet at item 241776

INFO: Parser returned #f

When i remove the USRP source from B210 flowgraph, B210 can send ping to 
N310. (I can observe it from wireshark) So, i though problem can be 
related simultaneous transmission and reception. What can be problem? 
Any suggestion is appreciated. Thank you.

The flowgraphs for N310 and B210 are attached.

Best regards.


["ofdm_tx_n310_tuntap_with_rx.grc" (text/xml)]

<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
  <timestamp>Wed Jul  9 15:50:17 2014</timestamp>
  <block>
    <key>options</key>
    <param>
      <key>author</key>
      <value></value>
    </param>
    <param>
      <key>window_size</key>
      <value>3000, 3000</value>
    </param>
    <param>
      <key>category</key>
      <value>Custom</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>description</key>
      <value>Example of an OFDM receiver</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>generate_options</key>
      <value>wx_gui</value>
    </param>
    <param>
      <key>hier_block_src_path</key>
      <value>.:</value>
    </param>
    <param>
      <key>id</key>
      <value>ofdm_tx_n310_tuntap_with_rx</value>
    </param>
    <param>
      <key>max_nouts</key>
      <value>0</value>
    </param>
    <param>
      <key>qt_qss_theme</key>
      <value></value>
    </param>
    <param>
      <key>realtime_scheduling</key>
      <value></value>
    </param>
    <param>
      <key>run_command</key>
      <value>{python} -u {filename}</value>
    </param>
    <param>
      <key>run_options</key>
      <value>prompt</value>
    </param>
    <param>
      <key>run</key>
      <value>True</value>
    </param>
    <param>
      <key>sizing_mode</key>
      <value>fixed</value>
    </param>
    <param>
      <key>thread_safe_setters</key>
      <value></value>
    </param>
    <param>
      <key>title</key>
      <value>OFDM Tx</value>
    </param>
    <param>
      <key>placement</key>
      <value>(0,0)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 108)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>center_freq</value>
    </param>
    <param>
      <key>value</key>
      <value>910e6</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(301, -1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>value</key>
      <value>64</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(208, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>hdr_format</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.header_format_ofdm(occupied_carriers, 1, \
length_tag_key,)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(931, 69)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_equalizer</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), \
occupied_carriers, pilot_carriers, pilot_symbols)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(855, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_formatter</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.packet_header_ofdm(occupied_carriers, n_syms=1, \
len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, \
bits_per_header_sym=header_mod.bits_per_symbol(), \
bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)</value>  \
</param>  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(490, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_mod</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_bpsk()</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(367, -1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>value</key>
      <value>"frame_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(400, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>value</key>
      <value>"packet_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1392, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key_tx_redundant</value>
    </param>
    <param>
      <key>value</key>
      <value>"redundant_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(541, 70)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>value</key>
      <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + \
range(8, 21) + range(22, 27),)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1034, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>value</key>
      <value>96</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1132, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>value</key>
      <value>"packet_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1112, 73)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>payload_equalizer</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), \
occupied_carriers, pilot_carriers, pilot_symbols, 1)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(663, 1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>payload_mod</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_qpsk()</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(692, 70)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>pilot_carriers</value>
    </param>
    <param>
      <key>value</key>
      <value>((-21, -7, 7, 21,),)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(813, 70)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>pilot_symbols</value>
    </param>
    <param>
      <key>value</key>
      <value>((1, 1, 1, -1,),)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1280, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>redundant_len</value>
    </param>
    <param>
      <key>value</key>
      <value>16</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(96, 108)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>rf_gain</value>
    </param>
    <param>
      <key>value</key>
      <value>50</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(536, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>rolloff</value>
    </param>
    <param>
      <key>value</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(88, 180)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>rx_center_freq</value>
    </param>
    <param>
      <key>value</key>
      <value>900e6</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 180)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>rx_gain</value>
    </param>
    <param>
      <key>value</key>
      <value>20</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(170, 65)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>value</key>
      <value>1000000</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(255, 67)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>sync_word1</value>
    </param>
    <param>
      <key>value</key>
      <value>[0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., \
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., \
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., \
0.]</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(399, 66)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>sync_word2</value>
    </param>
    <param>
      <key>value</key>
      <value>[0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), \
(1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), \
(1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), \
(1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), \
(1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), \
(-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, \
0j, 0j, 0j, 0j]</value>  </param>
  </block>
  <block>
    <key>analog_const_source_x</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>const</key>
      <value>0</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 476)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>analog_const_source_x_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>type</key>
      <value>short</value>
    </param>
  </block>
  <block>
    <key>analog_frequency_modulator_fc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(656, 1052)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>analog_frequency_modulator_fc_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>sensitivity</key>
      <value>-2.0/fft_len</value>
    </param>
  </block>
  <block>
    <key>blocks_delay</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>delay</key>
      <value>fft_len+fft_len/4</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(352, 1156)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_delay_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_file_sink</key>
    <param>
      <key>append</key>
      <value>False</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>file</key>
      <value>/home/rcetin/Desktop/ofdm_n310_rx</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(752, 1844)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_file_sink_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>unbuffered</key>
      <value>True</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_message_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1304, 1792)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_message_debug_0_0</value>
    </param>
  </block>
  <block>
    <key>blocks_multiply_const_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>const</key>
      <value>0.05</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(208, 852)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_multiply_const_vxx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_multiply_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(872, 1056)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_multiply_xx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>2</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_pdu_to_tagged_stream</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(280, 292)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_pdu_to_tagged_stream_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>tag</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>payload_mod.bits_per_symbol()</value>
    </param>
    <param>
      <key>l</key>
      <value>8</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(432, 1740)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>1</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1368, 220)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>1</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(640, 468)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>payload_mod.bits_per_symbol()</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1072, 340)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_1</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_short_to_char</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(168, 480)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_short_to_char_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_stream_to_tagged_stream</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(376, 468)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_stream_to_tagged_stream_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>packet_len</key>
      <value>redundant_len</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>display</key>
      <value>True</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1072, 636)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_debug_0_2_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>filter</key>
      <value>""</value>
    </param>
    <param>
      <key>name</key>
      <value>timedomain Packets</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>1</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>display</key>
      <value>True</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1160, 1756)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_debug_1</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>filter</key>
      <value>""</value>
    </param>
    <param>
      <key>name</key>
      <value>Rx Bytes</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>1</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_gate</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(376, 852)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_gate_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_tags</key>
      <value>True</value>
    </param>
    <param>
      <key>single_key</key>
      <value>""</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_mux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(600, 600)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_mux_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>ninputs</key>
      <value>2</value>
    </param>
    <param>
      <key>tag_preserve_head_pos</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_mux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1072, 480)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_mux_0_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>ninputs</key>
      <value>2</value>
    </param>
    <param>
      <key>tag_preserve_head_pos</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_to_pdu</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1000, 1900)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_to_pdu_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>tag</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_tuntap_pdu</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>istunflag</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(64, 276)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tuntap_pdu_0</value>
    </param>
    <param>
      <key>ifn</key>
      <value>tap0</value>
    </param>
    <param>
      <key>mtu</key>
      <value>10000</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(216, 588)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>header_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(208, 668)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0_0</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>payload_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(872, 468)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0_1</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>header_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>constellation</key>
      <value>header_mod.base()</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(624, 1396)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>constellation</key>
      <value>payload_mod.base()</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(192, 1740)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_1</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_crc32_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(656, 1756)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_crc32_bb_0</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>check</key>
      <value>True</value>
    </param>
    <param>
      <key>packed</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_crc32_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(808, 212)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_crc32_bb_0_0</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>check</key>
      <value>False</value>
    </param>
    <param>
      <key>packed</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_header_payload_demux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(736, 1148)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>guard_interval</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>header_len</key>
      <value>3</value>
    </param>
    <param>
      <key>header_padding</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_header_payload_demux_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>items_per_symbol</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>length_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>output_symbols</key>
      <value>True</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>special_tags</key>
      <value>()</value>
    </param>
    <param>
      <key>timing_tag_key</key>
      <value>"rx_time"</value>
    </param>
    <param>
      <key>trigger_tag_key</key>
      <value>""</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_carrier_allocator_cvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(192, 652)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_carrier_allocator_cvc_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>pilot_carriers</key>
      <value>pilot_carriers</value>
    </param>
    <param>
      <key>pilot_symbols</key>
      <value>pilot_symbols</value>
    </param>
    <param>
      <key>sync_words</key>
      <value>(sync_word1, sync_word2)</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_chanest_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>eq_noise_red_len</key>
      <value>0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>force_one_symbol</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(432, 1484)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_chanest_vcvc_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>max_carr_offset</key>
      <value>3</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>n_data_symbols</key>
      <value>1</value>
    </param>
    <param>
      <key>sync_symbol1</key>
      <value>sync_word1</value>
    </param>
    <param>
      <key>sync_symbol2</key>
      <value>sync_word2</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_cyclic_prefixer</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>input_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(632, 660)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_cyclic_prefixer_0</value>
    </param>
    <param>
      <key>tagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>rolloff</key>
      <value>rolloff</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>header_equalizer.base()</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>fixed_frame_len</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(696, 1476)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>payload_equalizer.base()</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>fixed_frame_len</key>
      <value>0</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(672, 1620)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_1</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>carr_offset_key</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(912, 1500)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_header</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value></value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>carr_offset_key</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(920, 1620)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_payload</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_sync_sc_cfb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(352, 1036)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_sync_sc_cfb_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>use_even_carriers</key>
      <value>False</value>
    </param>
    <param>
      <key>threshold</key>
      <value>0.9</value>
    </param>
  </block>
  <block>
    <key>digital_packet_headerparser_b</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>header_formatter</key>
      <value>header_formatter.base()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(384, 1396)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_packet_headerparser_b_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_protocol_formatter_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>format</key>
      <value>hdr_format</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1072, 220)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_protocol_formatter_bb_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(216, 1492)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value>()</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(416, 660)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_0_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value>()</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(224, 1620)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_1</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1728, 252)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_bits</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Bits</value>
    </param>
  </block>
  <block>
    <key>import</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(163, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>import_1</value>
    </param>
    <param>
      <key>import</key>
      <value>from gnuradio.digital.utils import tagged_streams</value>
    </param>
  </block>
  <block>
    <key>uhd_usrp_sink</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>ant0</key>
      <value>TX/RX</value>
    </param>
    <param>
      <key>bw0</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq0</key>
      <value>center_freq</value>
    </param>
    <param>
      <key>norm_gain0</key>
      <value>False</value>
    </param>
    <param>
      <key>gain0</key>
      <value>rf_gain</value>
    </param>
    <param>
      <key>ant10</key>
      <value></value>
    </param>
    <param>
      <key>bw10</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq10</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain10</key>
      <value>False</value>
    </param>
    <param>
      <key>gain10</key>
      <value>0</value>
    </param>
    <param>
      <key>ant11</key>
      <value></value>
    </param>
    <param>
      <key>bw11</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq11</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain11</key>
      <value>False</value>
    </param>
    <param>
      <key>gain11</key>
      <value>0</value>
    </param>
    <param>
      <key>ant12</key>
      <value></value>
    </param>
    <param>
      <key>bw12</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq12</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain12</key>
      <value>False</value>
    </param>
    <param>
      <key>gain12</key>
      <value>0</value>
    </param>
    <param>
      <key>ant13</key>
      <value></value>
    </param>
    <param>
      <key>bw13</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq13</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain13</key>
      <value>False</value>
    </param>
    <param>
      <key>gain13</key>
      <value>0</value>
    </param>
    <param>
      <key>ant14</key>
      <value></value>
    </param>
    <param>
      <key>bw14</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq14</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain14</key>
      <value>False</value>
    </param>
    <param>
      <key>gain14</key>
      <value>0</value>
    </param>
    <param>
      <key>ant15</key>
      <value></value>
    </param>
    <param>
      <key>bw15</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq15</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain15</key>
      <value>False</value>
    </param>
    <param>
      <key>gain15</key>
      <value>0</value>
    </param>
    <param>
      <key>ant16</key>
      <value></value>
    </param>
    <param>
      <key>bw16</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq16</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain16</key>
      <value>False</value>
    </param>
    <param>
      <key>gain16</key>
      <value>0</value>
    </param>
    <param>
      <key>ant17</key>
      <value></value>
    </param>
    <param>
      <key>bw17</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq17</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain17</key>
      <value>False</value>
    </param>
    <param>
      <key>gain17</key>
      <value>0</value>
    </param>
    <param>
      <key>ant18</key>
      <value></value>
    </param>
    <param>
      <key>bw18</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq18</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain18</key>
      <value>False</value>
    </param>
    <param>
      <key>gain18</key>
      <value>0</value>
    </param>
    <param>
      <key>ant19</key>
      <value></value>
    </param>
    <param>
      <key>bw19</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq19</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain19</key>
      <value>False</value>
    </param>
    <param>
      <key>gain19</key>
      <value>0</value>
    </param>
    <param>
      <key>ant1</key>
      <value></value>
    </param>
    <param>
      <key>bw1</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq1</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain1</key>
      <value>False</value>
    </param>
    <param>
      <key>gain1</key>
      <value>0</value>
    </param>
    <param>
      <key>ant20</key>
      <value></value>
    </param>
    <param>
      <key>bw20</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq20</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain20</key>
      <value>False</value>
    </param>
    <param>
      <key>gain20</key>
      <value>0</value>
    </param>
    <param>
      <key>ant21</key>
      <value></value>
    </param>
    <param>
      <key>bw21</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq21</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain21</key>
      <value>False</value>
    </param>
    <param>
      <key>gain21</key>
      <value>0</value>
    </param>
    <param>
      <key>ant22</key>
      <value></value>
    </param>
    <param>
      <key>bw22</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq22</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain22</key>
      <value>False</value>
    </param>
    <param>
      <key>gain22</key>
      <value>0</value>
    </param>
    <param>
      <key>ant23</key>
      <value></value>
    </param>
    <param>
      <key>bw23</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq23</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain23</key>
      <value>False</value>
    </param>
    <param>
      <key>gain23</key>
      <value>0</value>
    </param>
    <param>
      <key>ant24</key>
      <value></value>
    </param>
    <param>
      <key>bw24</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq24</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain24</key>
      <value>False</value>
    </param>
    <param>
      <key>gain24</key>
      <value>0</value>
    </param>
    <param>
      <key>ant25</key>
      <value></value>
    </param>
    <param>
      <key>bw25</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq25</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain25</key>
      <value>False</value>
    </param>
    <param>
      <key>gain25</key>
      <value>0</value>
    </param>
    <param>
      <key>ant26</key>
      <value></value>
    </param>
    <param>
      <key>bw26</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq26</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain26</key>
      <value>False</value>
    </param>
    <param>
      <key>gain26</key>
      <value>0</value>
    </param>
    <param>
      <key>ant27</key>
      <value></value>
    </param>
    <param>
      <key>bw27</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq27</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain27</key>
      <value>False</value>
    </param>
    <param>
      <key>gain27</key>
      <value>0</value>
    </param>
    <param>
      <key>ant28</key>
      <value></value>
    </param>
    <param>
      <key>bw28</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq28</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain28</key>
      <value>False</value>
    </param>
    <param>
      <key>gain28</key>
      <value>0</value>
    </param>
    <param>
      <key>ant29</key>
      <value></value>
    </param>
    <param>
      <key>bw29</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq29</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain29</key>
      <value>False</value>
    </param>
    <param>
      <key>gain29</key>
      <value>0</value>
    </param>
    <param>
      <key>ant2</key>
      <value></value>
    </param>
    <param>
      <key>bw2</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq2</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain2</key>
      <value>False</value>
    </param>
    <param>
      <key>gain2</key>
      <value>0</value>
    </param>
    <param>
      <key>ant30</key>
      <value></value>
    </param>
    <param>
      <key>bw30</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq30</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain30</key>
      <value>False</value>
    </param>
    <param>
      <key>gain30</key>
      <value>0</value>
    </param>
    <param>
      <key>ant31</key>
      <value></value>
    </param>
    <param>
      <key>bw31</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq31</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain31</key>
      <value>False</value>
    </param>
    <param>
      <key>gain31</key>
      <value>0</value>
    </param>
    <param>
      <key>ant3</key>
      <value></value>
    </param>
    <param>
      <key>bw3</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq3</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain3</key>
      <value>False</value>
    </param>
    <param>
      <key>gain3</key>
      <value>0</value>
    </param>
    <param>
      <key>ant4</key>
      <value></value>
    </param>
    <param>
      <key>bw4</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq4</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain4</key>
      <value>False</value>
    </param>
    <param>
      <key>gain4</key>
      <value>0</value>
    </param>
    <param>
      <key>ant5</key>
      <value></value>
    </param>
    <param>
      <key>bw5</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq5</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain5</key>
      <value>False</value>
    </param>
    <param>
      <key>gain5</key>
      <value>0</value>
    </param>
    <param>
      <key>ant6</key>
      <value></value>
    </param>
    <param>
      <key>bw6</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq6</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain6</key>
      <value>False</value>
    </param>
    <param>
      <key>gain6</key>
      <value>0</value>
    </param>
    <param>
      <key>ant7</key>
      <value></value>
    </param>
    <param>
      <key>bw7</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq7</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain7</key>
      <value>False</value>
    </param>
    <param>
      <key>gain7</key>
      <value>0</value>
    </param>
    <param>
      <key>ant8</key>
      <value></value>
    </param>
    <param>
      <key>bw8</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq8</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain8</key>
      <value>False</value>
    </param>
    <param>
      <key>gain8</key>
      <value>0</value>
    </param>
    <param>
      <key>ant9</key>
      <value></value>
    </param>
    <param>
      <key>bw9</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq9</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain9</key>
      <value>False</value>
    </param>
    <param>
      <key>gain9</key>
      <value>0</value>
    </param>
    <param>
      <key>clock_rate</key>
      <value>0.0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dev_addr</key>
      <value>"serial=3175D80"</value>
    </param>
    <param>
      <key>dev_args</key>
      <value>""</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(600, 804)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>uhd_usrp_sink_0</value>
    </param>
    <param>
      <key>type</key>
      <value>fc32</value>
    </param>
    <param>
      <key>clock_source0</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec0</key>
      <value></value>
    </param>
    <param>
      <key>time_source0</key>
      <value></value>
    </param>
    <param>
      <key>clock_source1</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec1</key>
      <value></value>
    </param>
    <param>
      <key>time_source1</key>
      <value></value>
    </param>
    <param>
      <key>clock_source2</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec2</key>
      <value></value>
    </param>
    <param>
      <key>time_source2</key>
      <value></value>
    </param>
    <param>
      <key>clock_source3</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec3</key>
      <value></value>
    </param>
    <param>
      <key>time_source3</key>
      <value></value>
    </param>
    <param>
      <key>clock_source4</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec4</key>
      <value></value>
    </param>
    <param>
      <key>time_source4</key>
      <value></value>
    </param>
    <param>
      <key>clock_source5</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec5</key>
      <value></value>
    </param>
    <param>
      <key>time_source5</key>
      <value></value>
    </param>
    <param>
      <key>clock_source6</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec6</key>
      <value></value>
    </param>
    <param>
      <key>time_source6</key>
      <value></value>
    </param>
    <param>
      <key>clock_source7</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec7</key>
      <value></value>
    </param>
    <param>
      <key>time_source7</key>
      <value></value>
    </param>
    <param>
      <key>nchan</key>
      <value>1</value>
    </param>
    <param>
      <key>num_mboards</key>
      <value>1</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>hide_cmd_port</key>
      <value>False</value>
    </param>
    <param>
      <key>hide_lo_controls</key>
      <value>True</value>
    </param>
    <param>
      <key>stream_args</key>
      <value></value>
    </param>
    <param>
      <key>stream_chans</key>
      <value>[]</value>
    </param>
    <param>
      <key>sync</key>
      <value></value>
    </param>
    <param>
      <key>len_tag_name</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>otw</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>uhd_usrp_source</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>ant0</key>
      <value>RX2</value>
    </param>
    <param>
      <key>bw0</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq0</key>
      <value>rx_center_freq</value>
    </param>
    <param>
      <key>dc_offs_enb0</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb0</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain0</key>
      <value>False</value>
    </param>
    <param>
      <key>gain0</key>
      <value>rx_gain</value>
    </param>
    <param>
      <key>lo_export0</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source0</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant10</key>
      <value></value>
    </param>
    <param>
      <key>bw10</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq10</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb10</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb10</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain10</key>
      <value>False</value>
    </param>
    <param>
      <key>gain10</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export10</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source10</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant11</key>
      <value></value>
    </param>
    <param>
      <key>bw11</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq11</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb11</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb11</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain11</key>
      <value>False</value>
    </param>
    <param>
      <key>gain11</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export11</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source11</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant12</key>
      <value></value>
    </param>
    <param>
      <key>bw12</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq12</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb12</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb12</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain12</key>
      <value>False</value>
    </param>
    <param>
      <key>gain12</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export12</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source12</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant13</key>
      <value></value>
    </param>
    <param>
      <key>bw13</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq13</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb13</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb13</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain13</key>
      <value>False</value>
    </param>
    <param>
      <key>gain13</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export13</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source13</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant14</key>
      <value></value>
    </param>
    <param>
      <key>bw14</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq14</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb14</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb14</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain14</key>
      <value>False</value>
    </param>
    <param>
      <key>gain14</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export14</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source14</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant15</key>
      <value></value>
    </param>
    <param>
      <key>bw15</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq15</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb15</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb15</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain15</key>
      <value>False</value>
    </param>
    <param>
      <key>gain15</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export15</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source15</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant16</key>
      <value></value>
    </param>
    <param>
      <key>bw16</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq16</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb16</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb16</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain16</key>
      <value>False</value>
    </param>
    <param>
      <key>gain16</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export16</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source16</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant17</key>
      <value></value>
    </param>
    <param>
      <key>bw17</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq17</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb17</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb17</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain17</key>
      <value>False</value>
    </param>
    <param>
      <key>gain17</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export17</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source17</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant18</key>
      <value></value>
    </param>
    <param>
      <key>bw18</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq18</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb18</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb18</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain18</key>
      <value>False</value>
    </param>
    <param>
      <key>gain18</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export18</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source18</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant19</key>
      <value></value>
    </param>
    <param>
      <key>bw19</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq19</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb19</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb19</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain19</key>
      <value>False</value>
    </param>
    <param>
      <key>gain19</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export19</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source19</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant1</key>
      <value></value>
    </param>
    <param>
      <key>bw1</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq1</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb1</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb1</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain1</key>
      <value>False</value>
    </param>
    <param>
      <key>gain1</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export1</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source1</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant20</key>
      <value></value>
    </param>
    <param>
      <key>bw20</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq20</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb20</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb20</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain20</key>
      <value>False</value>
    </param>
    <param>
      <key>gain20</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export20</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source20</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant21</key>
      <value></value>
    </param>
    <param>
      <key>bw21</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq21</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb21</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb21</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain21</key>
      <value>False</value>
    </param>
    <param>
      <key>gain21</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export21</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source21</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant22</key>
      <value></value>
    </param>
    <param>
      <key>bw22</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq22</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb22</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb22</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain22</key>
      <value>False</value>
    </param>
    <param>
      <key>gain22</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export22</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source22</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant23</key>
      <value></value>
    </param>
    <param>
      <key>bw23</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq23</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb23</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb23</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain23</key>
      <value>False</value>
    </param>
    <param>
      <key>gain23</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export23</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source23</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant24</key>
      <value></value>
    </param>
    <param>
      <key>bw24</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq24</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb24</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb24</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain24</key>
      <value>False</value>
    </param>
    <param>
      <key>gain24</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export24</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source24</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant25</key>
      <value></value>
    </param>
    <param>
      <key>bw25</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq25</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb25</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb25</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain25</key>
      <value>False</value>
    </param>
    <param>
      <key>gain25</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export25</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source25</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant26</key>
      <value></value>
    </param>
    <param>
      <key>bw26</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq26</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb26</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb26</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain26</key>
      <value>False</value>
    </param>
    <param>
      <key>gain26</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export26</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source26</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant27</key>
      <value></value>
    </param>
    <param>
      <key>bw27</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq27</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb27</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb27</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain27</key>
      <value>False</value>
    </param>
    <param>
      <key>gain27</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export27</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source27</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant28</key>
      <value></value>
    </param>
    <param>
      <key>bw28</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq28</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb28</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb28</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain28</key>
      <value>False</value>
    </param>
    <param>
      <key>gain28</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export28</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source28</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant29</key>
      <value></value>
    </param>
    <param>
      <key>bw29</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq29</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb29</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb29</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain29</key>
      <value>False</value>
    </param>
    <param>
      <key>gain29</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export29</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source29</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant2</key>
      <value></value>
    </param>
    <param>
      <key>bw2</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq2</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb2</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb2</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain2</key>
      <value>False</value>
    </param>
    <param>
      <key>gain2</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export2</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source2</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant30</key>
      <value></value>
    </param>
    <param>
      <key>bw30</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq30</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb30</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb30</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain30</key>
      <value>False</value>
    </param>
    <param>
      <key>gain30</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export30</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source30</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant31</key>
      <value></value>
    </param>
    <param>
      <key>bw31</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq31</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb31</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb31</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain31</key>
      <value>False</value>
    </param>
    <param>
      <key>gain31</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export31</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source31</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant3</key>
      <value></value>
    </param>
    <param>
      <key>bw3</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq3</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb3</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb3</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain3</key>
      <value>False</value>
    </param>
    <param>
      <key>gain3</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export3</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source3</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant4</key>
      <value></value>
    </param>
    <param>
      <key>bw4</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq4</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb4</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb4</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain4</key>
      <value>False</value>
    </param>
    <param>
      <key>gain4</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export4</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source4</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant5</key>
      <value></value>
    </param>
    <param>
      <key>bw5</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq5</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb5</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb5</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain5</key>
      <value>False</value>
    </param>
    <param>
      <key>gain5</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export5</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source5</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant6</key>
      <value></value>
    </param>
    <param>
      <key>bw6</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq6</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb6</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb6</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain6</key>
      <value>False</value>
    </param>
    <param>
      <key>gain6</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export6</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source6</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant7</key>
      <value></value>
    </param>
    <param>
      <key>bw7</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq7</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb7</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb7</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain7</key>
      <value>False</value>
    </param>
    <param>
      <key>gain7</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export7</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source7</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant8</key>
      <value></value>
    </param>
    <param>
      <key>bw8</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq8</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb8</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb8</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain8</key>
      <value>False</value>
    </param>
    <param>
      <key>gain8</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export8</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source8</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant9</key>
      <value></value>
    </param>
    <param>
      <key>bw9</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq9</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb9</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb9</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain9</key>
      <value>False</value>
    </param>
    <param>
      <key>gain9</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export9</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source9</key>
      <value>internal</value>
    </param>
    <param>
      <key>clock_rate</key>
      <value>0.0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dev_addr</key>
      <value>"serial=3175D80"</value>
    </param>
    <param>
      <key>dev_args</key>
      <value>""</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(72, 1020)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>uhd_usrp_source_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>clock_source0</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec0</key>
      <value></value>
    </param>
    <param>
      <key>time_source0</key>
      <value></value>
    </param>
    <param>
      <key>clock_source1</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec1</key>
      <value></value>
    </param>
    <param>
      <key>time_source1</key>
      <value></value>
    </param>
    <param>
      <key>clock_source2</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec2</key>
      <value></value>
    </param>
    <param>
      <key>time_source2</key>
      <value></value>
    </param>
    <param>
      <key>clock_source3</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec3</key>
      <value></value>
    </param>
    <param>
      <key>time_source3</key>
      <value></value>
    </param>
    <param>
      <key>clock_source4</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec4</key>
      <value></value>
    </param>
    <param>
      <key>time_source4</key>
      <value></value>
    </param>
    <param>
      <key>clock_source5</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec5</key>
      <value></value>
    </param>
    <param>
      <key>time_source5</key>
      <value></value>
    </param>
    <param>
      <key>clock_source6</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec6</key>
      <value></value>
    </param>
    <param>
      <key>time_source6</key>
      <value></value>
    </param>
    <param>
      <key>clock_source7</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec7</key>
      <value></value>
    </param>
    <param>
      <key>time_source7</key>
      <value></value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nchan</key>
      <value>1</value>
    </param>
    <param>
      <key>num_mboards</key>
      <value>1</value>
    </param>
    <param>
      <key>type</key>
      <value>fc32</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>hide_cmd_port</key>
      <value>False</value>
    </param>
    <param>
      <key>hide_lo_controls</key>
      <value>True</value>
    </param>
    <param>
      <key>stream_args</key>
      <value></value>
    </param>
    <param>
      <key>stream_chans</key>
      <value>[]</value>
    </param>
    <param>
      <key>sync</key>
      <value></value>
    </param>
    <param>
      <key>otw</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1088, 1188)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1376, 372)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1296, 492)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Pre-OFDM</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(872, 716)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Time Domain</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1088, 1244)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1176, 1668)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_1_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload IQ</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(8, 1524)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 1764)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload IQ</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 684)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Pre-OFDM</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 852)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Time Domain</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 676)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 596)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 1644)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Stream</value>
    </param>
  </block>
  <block>
    <key>wxgui_scopesink2</key>
    <param>
      <key>ac_couple</key>
      <value>False</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(168, 1180)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>grid_pos</key>
      <value></value>
    </param>
    <param>
      <key>id</key>
      <value>wxgui_scopesink2_0</value>
    </param>
    <param>
      <key>notebook</key>
      <value></value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>1</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>t_scale</key>
      <value>0</value>
    </param>
    <param>
      <key>title</key>
      <value>Scope Plot</value>
    </param>
    <param>
      <key>trig_mode</key>
      <value>wxgui.TRIG_MODE_AUTO</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>v_offset</key>
      <value>0</value>
    </param>
    <param>
      <key>v_scale</key>
      <value>0</value>
    </param>
    <param>
      <key>win_size</key>
      <value></value>
    </param>
    <param>
      <key>xy_mode</key>
      <value>False</value>
    </param>
    <param>
      <key>y_axis_label</key>
      <value>Counts</value>
    </param>
  </block>
  <connection>
    <source_block_id>analog_const_source_x_0</source_block_id>
    <sink_block_id>blocks_short_to_char_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>analog_frequency_modulator_fc_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_delay_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
    <sink_block_id>blocks_tag_gate_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_multiply_xx_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
    <sink_block_id>digital_crc32_bb_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
    <sink_block_id>digital_crc32_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
    <sink_block_id>header_bits</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_0_0</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_1</source_block_id>
    <sink_block_id>virtual_sink_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_short_to_char_0</source_block_id>
    <sink_block_id>blocks_stream_to_tagged_stream_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_stream_to_tagged_stream_0_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tag_gate_0</source_block_id>
    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_mux_0_0</source_block_id>
    <sink_block_id>virtual_sink_0_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
    <sink_block_id>blocks_message_debug_0_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>print_pdu</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
    <sink_block_id>blocks_tuntap_pdu_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>pdus</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tuntap_pdu_0</source_block_id>
    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>pdus</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0_1</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
    <sink_block_id>digital_packet_headerparser_b_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_1</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_file_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_tag_debug_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_to_pdu_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0_0</source_block_id>
    <sink_block_id>digital_protocol_formatter_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>virtual_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>virtual_sink_1</sink_block_id>
    <source_key>1</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_carrier_allocator_cvc_0</source_block_id>
    <sink_block_id>fft_vxx_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_chanest_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id>
    <sink_block_id>blocks_tag_debug_0_2_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id>
    <sink_block_id>virtual_sink_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_header</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_1</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_payload</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_header</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_payload</source_block_id>
    <sink_block_id>virtual_sink_1_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>1</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>analog_frequency_modulator_fc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_packet_headerparser_b_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>header_data</source_key>
    <sink_key>header_data</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_protocol_formatter_bb_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_0</source_block_id>
    <sink_block_id>digital_ofdm_chanest_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_0_0</source_block_id>
    <sink_block_id>digital_ofdm_cyclic_prefixer_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_1</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>uhd_usrp_source_0</source_block_id>
    <sink_block_id>blocks_delay_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>uhd_usrp_source_0</source_block_id>
    <sink_block_id>digital_ofdm_sync_sc_cfb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>uhd_usrp_source_0</source_block_id>
    <sink_block_id>wxgui_scopesink2_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0</source_block_id>
    <sink_block_id>fft_vxx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_0</source_block_id>
    <sink_block_id>digital_ofdm_carrier_allocator_cvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_0_0</source_block_id>
    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_1</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_1</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_1</source_block_id>
    <sink_block_id>fft_vxx_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
</flow_graph>


["ofdm_rx_b210_tuntap_with_tx.grc" (text/xml)]

<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
  <timestamp>Mon Jan 14 14:59:41 2019</timestamp>
  <block>
    <key>options</key>
    <param>
      <key>author</key>
      <value></value>
    </param>
    <param>
      <key>window_size</key>
      <value>3000,3000</value>
    </param>
    <param>
      <key>category</key>
      <value>[GRC Hier Blocks]</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>description</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(8, 8)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>generate_options</key>
      <value>qt_gui</value>
    </param>
    <param>
      <key>hier_block_src_path</key>
      <value>.:</value>
    </param>
    <param>
      <key>id</key>
      <value>ofdm_rx_b210_tuntap_with_tx</value>
    </param>
    <param>
      <key>max_nouts</key>
      <value>0</value>
    </param>
    <param>
      <key>qt_qss_theme</key>
      <value></value>
    </param>
    <param>
      <key>realtime_scheduling</key>
      <value></value>
    </param>
    <param>
      <key>run_command</key>
      <value>{python} -u {filename}</value>
    </param>
    <param>
      <key>run_options</key>
      <value>prompt</value>
    </param>
    <param>
      <key>run</key>
      <value>True</value>
    </param>
    <param>
      <key>sizing_mode</key>
      <value>fixed</value>
    </param>
    <param>
      <key>thread_safe_setters</key>
      <value></value>
    </param>
    <param>
      <key>title</key>
      <value></value>
    </param>
    <param>
      <key>placement</key>
      <value>(0,0)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(352, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>value</key>
      <value>64</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(256, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>hdr_format</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.header_format_ofdm(occupied_carriers, 1, \
length_tag_key,)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(976, 76)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_equalizer</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), \
occupied_carriers, pilot_carriers, pilot_symbols)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(904, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_formatter</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.packet_header_ofdm(occupied_carriers, n_syms=1, \
len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, \
bits_per_header_sym=header_mod.bits_per_symbol(), \
bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)</value>  \
</param>  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(536, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_mod</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_bpsk()</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(416, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>value</key>
      <value>"frame_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(448, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>value</key>
      <value>"packet_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1440, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>length_tag_key_tx_redundant</value>
    </param>
    <param>
      <key>value</key>
      <value>"redundant_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(592, 76)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>value</key>
      <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + \
range(8, 21) + range(22, 27),)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1080, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>value</key>
      <value>96</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1176, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>value</key>
      <value>"packet_len"</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1160, 76)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>payload_equalizer</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), \
occupied_carriers, pilot_carriers, pilot_symbols, 1)</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(712, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>payload_mod</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_qpsk()</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(736, 76)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>pilot_carriers</value>
    </param>
    <param>
      <key>value</key>
      <value>((-21, -7, 7, 21,),)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(864, 76)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>pilot_symbols</value>
    </param>
    <param>
      <key>value</key>
      <value>((1, 1, 1, -1,),)</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1328, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>redundant_len</value>
    </param>
    <param>
      <key>value</key>
      <value>16</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(584, 132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>rolloff</value>
    </param>
    <param>
      <key>value</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(112, 180)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>rx_center_freq</value>
    </param>
    <param>
      <key>value</key>
      <value>910e6</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(24, 180)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>rx_gain</value>
    </param>
    <param>
      <key>value</key>
      <value>10</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(216, 68)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>value</key>
      <value>1000000</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(304, 68)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>sync_word1</value>
    </param>
    <param>
      <key>value</key>
      <value>[0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., \
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., \
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., \
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., \
0.]</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(448, 68)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>sync_word2</value>
    </param>
    <param>
      <key>value</key>
      <value>[0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), \
(1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), \
(1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), \
(1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), \
(1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), \
(-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, \
0j, 0j, 0j, 0j]</value>  </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(16, 108)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>tx_center_freq</value>
    </param>
    <param>
      <key>value</key>
      <value>900e6</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(144, 108)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>tx_gain</value>
    </param>
    <param>
      <key>value</key>
      <value>60</value>
    </param>
  </block>
  <block>
    <key>analog_const_source_x</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>const</key>
      <value>0</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(8, 1332)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>analog_const_source_x_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>type</key>
      <value>short</value>
    </param>
  </block>
  <block>
    <key>analog_frequency_modulator_fc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(672, 212)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>analog_frequency_modulator_fc_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>sensitivity</key>
      <value>-2.0/fft_len</value>
    </param>
  </block>
  <block>
    <key>blocks_delay</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>delay</key>
      <value>fft_len+fft_len/4</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(408, 316)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_delay_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_file_sink</key>
    <param>
      <key>append</key>
      <value>False</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>file</key>
      <value>/home/rcetin/Desktop/ofdm_debug/ofdm_rx/ofdm_rx</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(896, 900)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_file_sink_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>unbuffered</key>
      <value>True</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_message_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1448, 920)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_message_debug_0</value>
    </param>
  </block>
  <block>
    <key>blocks_multiply_const_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>const</key>
      <value>0.05</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(216, 1708)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_multiply_const_vxx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_multiply_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(880, 216)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_multiply_xx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>2</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_pdu_to_tagged_stream</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(280, 1148)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_pdu_to_tagged_stream_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>tag</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>payload_mod.bits_per_symbol()</value>
    </param>
    <param>
      <key>l</key>
      <value>8</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(408, 828)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>1</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1056, 1084)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>1</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(648, 1324)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_repack_bits_bb</key>
    <param>
      <key>k</key>
      <value>8</value>
    </param>
    <param>
      <key>l</key>
      <value>payload_mod.bits_per_symbol()</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>endianness</key>
      <value>gr.GR_LSB_FIRST</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(808, 1156)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_repack_bits_bb_0_1</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>align_output</key>
      <value>False</value>
    </param>
  </block>
  <block>
    <key>blocks_short_to_char</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(176, 1336)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_short_to_char_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_stream_to_tagged_stream</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(384, 1324)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_stream_to_tagged_stream_0_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>packet_len</key>
      <value>redundant_len</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>display</key>
      <value>True</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(880, 1548)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_debug_0_2_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>filter</key>
      <value>""</value>
    </param>
    <param>
      <key>name</key>
      <value>timedomain Packets</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>1</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_debug</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>display</key>
      <value>True</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(896, 820)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_debug_1</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>filter</key>
      <value>""</value>
    </param>
    <param>
      <key>name</key>
      <value>Rx Bytes</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>1</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tag_gate</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(408, 1700)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tag_gate_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_tags</key>
      <value>True</value>
    </param>
    <param>
      <key>single_key</key>
      <value>""</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_mux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(608, 1416)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_mux_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>ninputs</key>
      <value>2</value>
    </param>
    <param>
      <key>tag_preserve_head_pos</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_mux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1088, 1392)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_mux_0_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>ninputs</key>
      <value>2</value>
    </param>
    <param>
      <key>tag_preserve_head_pos</key>
      <value>0</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>blocks_tagged_stream_to_pdu</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(608, 1020)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tagged_stream_to_pdu_0</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>tag</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_tuntap_pdu</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>istunflag</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(912, 1004)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>blocks_tuntap_pdu_0</value>
    </param>
    <param>
      <key>ifn</key>
      <value>tap1</value>
    </param>
    <param>
      <key>mtu</key>
      <value>10000</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(224, 1404)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>header_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(216, 1484)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0_0</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>payload_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_chunks_to_symbols_xx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dimension</key>
      <value>1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(880, 1324)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_chunks_to_symbols_xx_0_1</value>
    </param>
    <param>
      <key>in_type</key>
      <value>byte</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>out_type</key>
      <value>complex</value>
    </param>
    <param>
      <key>symbol_table</key>
      <value>header_mod.points()</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>constellation</key>
      <value>header_mod.base()</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(904, 476)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>constellation</key>
      <value>payload_mod.base()</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(184, 836)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_1</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_crc32_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(656, 820)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_crc32_bb_0</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>check</key>
      <value>True</value>
    </param>
    <param>
      <key>packed</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_crc32_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(528, 1132)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_crc32_bb_0_0</value>
    </param>
    <param>
      <key>lengthtagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>check</key>
      <value>False</value>
    </param>
    <param>
      <key>packed</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_header_payload_demux</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1088, 284)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>guard_interval</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>header_len</key>
      <value>3</value>
    </param>
    <param>
      <key>header_padding</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_header_payload_demux_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>items_per_symbol</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>length_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>output_symbols</key>
      <value>True</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>special_tags</key>
      <value>()</value>
    </param>
    <param>
      <key>timing_tag_key</key>
      <value>"rx_time"</value>
    </param>
    <param>
      <key>trigger_tag_key</key>
      <value>""</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_carrier_allocator_cvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(192, 1556)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_carrier_allocator_cvc_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>pilot_carriers</key>
      <value>pilot_carriers</value>
    </param>
    <param>
      <key>pilot_symbols</key>
      <value>pilot_symbols</value>
    </param>
    <param>
      <key>sync_words</key>
      <value>(sync_word1, sync_word2)</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_chanest_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>eq_noise_red_len</key>
      <value>0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>force_one_symbol</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(392, 564)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_chanest_vcvc_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>max_carr_offset</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>n_data_symbols</key>
      <value>1</value>
    </param>
    <param>
      <key>sync_symbol1</key>
      <value>sync_word1</value>
    </param>
    <param>
      <key>sync_symbol2</key>
      <value>sync_word2</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_cyclic_prefixer</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>input_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(632, 1572)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_cyclic_prefixer_0</value>
    </param>
    <param>
      <key>tagname</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>rolloff</key>
      <value>rolloff</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>header_equalizer.base()</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>fixed_frame_len</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(672, 556)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>payload_equalizer.base()</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>fixed_frame_len</key>
      <value>0</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(672, 684)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_1</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>True</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>carr_offset_key</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(912, 564)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_header</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value></value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>carr_offset_key</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(920, 692)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_payload</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value>packet_length_tag_key</value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>1</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_sync_sc_cfb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(408, 212)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_ofdm_sync_sc_cfb_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>use_even_carriers</key>
      <value>False</value>
    </param>
    <param>
      <key>threshold</key>
      <value>0.9</value>
    </param>
  </block>
  <block>
    <key>digital_packet_headerparser_b</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>header_formatter</key>
      <value>header_formatter.base()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(632, 476)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_packet_headerparser_b_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_protocol_formatter_bb</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>format</key>
      <value>hdr_format</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(808, 1084)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>digital_protocol_formatter_bb_0</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key_tx</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(184, 564)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value>()</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(400, 1564)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_0_0</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value>()</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(328, 692)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>fft_vxx_1</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1272, 1092)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>header_bits</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Bits</value>
    </param>
  </block>
  <block>
    <key>import</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(208, 4)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>import_1</value>
    </param>
    <param>
      <key>import</key>
      <value>from gnuradio.digital.utils import tagged_streams</value>
    </param>
  </block>
  <block>
    <key>qtgui_time_sink_x</key>
    <param>
      <key>autoscale</key>
      <value>True</value>
    </param>
    <param>
      <key>axislabels</key>
      <value>True</value>
    </param>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>ctrlpanel</key>
      <value>False</value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>entags</key>
      <value>True</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(392, 1772)</value>
    </param>
    <param>
      <key>gui_hint</key>
      <value></value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>grid</key>
      <value>False</value>
    </param>
    <param>
      <key>id</key>
      <value>qtgui_time_sink_x_0_1</value>
    </param>
    <param>
      <key>legend</key>
      <value>True</value>
    </param>
    <param>
      <key>alpha1</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color1</key>
      <value>"blue"</value>
    </param>
    <param>
      <key>label1</key>
      <value>Scope Plot</value>
    </param>
    <param>
      <key>marker1</key>
      <value>-1</value>
    </param>
    <param>
      <key>style1</key>
      <value>1</value>
    </param>
    <param>
      <key>width1</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha10</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color10</key>
      <value>"blue"</value>
    </param>
    <param>
      <key>label10</key>
      <value></value>
    </param>
    <param>
      <key>marker10</key>
      <value>-1</value>
    </param>
    <param>
      <key>style10</key>
      <value>1</value>
    </param>
    <param>
      <key>width10</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha2</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color2</key>
      <value>"red"</value>
    </param>
    <param>
      <key>label2</key>
      <value></value>
    </param>
    <param>
      <key>marker2</key>
      <value>-1</value>
    </param>
    <param>
      <key>style2</key>
      <value>1</value>
    </param>
    <param>
      <key>width2</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha3</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color3</key>
      <value>"green"</value>
    </param>
    <param>
      <key>label3</key>
      <value></value>
    </param>
    <param>
      <key>marker3</key>
      <value>-1</value>
    </param>
    <param>
      <key>style3</key>
      <value>1</value>
    </param>
    <param>
      <key>width3</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha4</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color4</key>
      <value>"black"</value>
    </param>
    <param>
      <key>label4</key>
      <value></value>
    </param>
    <param>
      <key>marker4</key>
      <value>-1</value>
    </param>
    <param>
      <key>style4</key>
      <value>1</value>
    </param>
    <param>
      <key>width4</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha5</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color5</key>
      <value>"cyan"</value>
    </param>
    <param>
      <key>label5</key>
      <value></value>
    </param>
    <param>
      <key>marker5</key>
      <value>-1</value>
    </param>
    <param>
      <key>style5</key>
      <value>1</value>
    </param>
    <param>
      <key>width5</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha6</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color6</key>
      <value>"magenta"</value>
    </param>
    <param>
      <key>label6</key>
      <value></value>
    </param>
    <param>
      <key>marker6</key>
      <value>-1</value>
    </param>
    <param>
      <key>style6</key>
      <value>1</value>
    </param>
    <param>
      <key>width6</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha7</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color7</key>
      <value>"yellow"</value>
    </param>
    <param>
      <key>label7</key>
      <value></value>
    </param>
    <param>
      <key>marker7</key>
      <value>-1</value>
    </param>
    <param>
      <key>style7</key>
      <value>1</value>
    </param>
    <param>
      <key>width7</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha8</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color8</key>
      <value>"dark red"</value>
    </param>
    <param>
      <key>label8</key>
      <value></value>
    </param>
    <param>
      <key>marker8</key>
      <value>-1</value>
    </param>
    <param>
      <key>style8</key>
      <value>1</value>
    </param>
    <param>
      <key>width8</key>
      <value>1</value>
    </param>
    <param>
      <key>alpha9</key>
      <value>1.0</value>
    </param>
    <param>
      <key>color9</key>
      <value>"dark green"</value>
    </param>
    <param>
      <key>label9</key>
      <value></value>
    </param>
    <param>
      <key>marker9</key>
      <value>-1</value>
    </param>
    <param>
      <key>style9</key>
      <value>1</value>
    </param>
    <param>
      <key>width9</key>
      <value>1</value>
    </param>
    <param>
      <key>name</key>
      <value>Scope Plot</value>
    </param>
    <param>
      <key>nconnections</key>
      <value>1</value>
    </param>
    <param>
      <key>size</key>
      <value>1024</value>
    </param>
    <param>
      <key>srate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>stemplot</key>
      <value>False</value>
    </param>
    <param>
      <key>tr_chan</key>
      <value>0</value>
    </param>
    <param>
      <key>tr_delay</key>
      <value>0</value>
    </param>
    <param>
      <key>tr_level</key>
      <value>0.0</value>
    </param>
    <param>
      <key>tr_mode</key>
      <value>qtgui.TRIG_MODE_FREE</value>
    </param>
    <param>
      <key>tr_slope</key>
      <value>qtgui.TRIG_SLOPE_POS</value>
    </param>
    <param>
      <key>tr_tag</key>
      <value>""</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>update_time</key>
      <value>0.10</value>
    </param>
    <param>
      <key>ylabel</key>
      <value>Amplitude</value>
    </param>
    <param>
      <key>yunit</key>
      <value>""</value>
    </param>
    <param>
      <key>ymax</key>
      <value>1</value>
    </param>
    <param>
      <key>ymin</key>
      <value>-1</value>
    </param>
  </block>
  <block>
    <key>uhd_usrp_sink</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>ant0</key>
      <value>TX/RX</value>
    </param>
    <param>
      <key>bw0</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq0</key>
      <value>tx_center_freq</value>
    </param>
    <param>
      <key>norm_gain0</key>
      <value>False</value>
    </param>
    <param>
      <key>gain0</key>
      <value>tx_gain</value>
    </param>
    <param>
      <key>ant10</key>
      <value></value>
    </param>
    <param>
      <key>bw10</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq10</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain10</key>
      <value>False</value>
    </param>
    <param>
      <key>gain10</key>
      <value>0</value>
    </param>
    <param>
      <key>ant11</key>
      <value></value>
    </param>
    <param>
      <key>bw11</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq11</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain11</key>
      <value>False</value>
    </param>
    <param>
      <key>gain11</key>
      <value>0</value>
    </param>
    <param>
      <key>ant12</key>
      <value></value>
    </param>
    <param>
      <key>bw12</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq12</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain12</key>
      <value>False</value>
    </param>
    <param>
      <key>gain12</key>
      <value>0</value>
    </param>
    <param>
      <key>ant13</key>
      <value></value>
    </param>
    <param>
      <key>bw13</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq13</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain13</key>
      <value>False</value>
    </param>
    <param>
      <key>gain13</key>
      <value>0</value>
    </param>
    <param>
      <key>ant14</key>
      <value></value>
    </param>
    <param>
      <key>bw14</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq14</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain14</key>
      <value>False</value>
    </param>
    <param>
      <key>gain14</key>
      <value>0</value>
    </param>
    <param>
      <key>ant15</key>
      <value></value>
    </param>
    <param>
      <key>bw15</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq15</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain15</key>
      <value>False</value>
    </param>
    <param>
      <key>gain15</key>
      <value>0</value>
    </param>
    <param>
      <key>ant16</key>
      <value></value>
    </param>
    <param>
      <key>bw16</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq16</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain16</key>
      <value>False</value>
    </param>
    <param>
      <key>gain16</key>
      <value>0</value>
    </param>
    <param>
      <key>ant17</key>
      <value></value>
    </param>
    <param>
      <key>bw17</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq17</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain17</key>
      <value>False</value>
    </param>
    <param>
      <key>gain17</key>
      <value>0</value>
    </param>
    <param>
      <key>ant18</key>
      <value></value>
    </param>
    <param>
      <key>bw18</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq18</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain18</key>
      <value>False</value>
    </param>
    <param>
      <key>gain18</key>
      <value>0</value>
    </param>
    <param>
      <key>ant19</key>
      <value></value>
    </param>
    <param>
      <key>bw19</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq19</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain19</key>
      <value>False</value>
    </param>
    <param>
      <key>gain19</key>
      <value>0</value>
    </param>
    <param>
      <key>ant1</key>
      <value></value>
    </param>
    <param>
      <key>bw1</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq1</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain1</key>
      <value>False</value>
    </param>
    <param>
      <key>gain1</key>
      <value>0</value>
    </param>
    <param>
      <key>ant20</key>
      <value></value>
    </param>
    <param>
      <key>bw20</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq20</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain20</key>
      <value>False</value>
    </param>
    <param>
      <key>gain20</key>
      <value>0</value>
    </param>
    <param>
      <key>ant21</key>
      <value></value>
    </param>
    <param>
      <key>bw21</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq21</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain21</key>
      <value>False</value>
    </param>
    <param>
      <key>gain21</key>
      <value>0</value>
    </param>
    <param>
      <key>ant22</key>
      <value></value>
    </param>
    <param>
      <key>bw22</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq22</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain22</key>
      <value>False</value>
    </param>
    <param>
      <key>gain22</key>
      <value>0</value>
    </param>
    <param>
      <key>ant23</key>
      <value></value>
    </param>
    <param>
      <key>bw23</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq23</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain23</key>
      <value>False</value>
    </param>
    <param>
      <key>gain23</key>
      <value>0</value>
    </param>
    <param>
      <key>ant24</key>
      <value></value>
    </param>
    <param>
      <key>bw24</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq24</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain24</key>
      <value>False</value>
    </param>
    <param>
      <key>gain24</key>
      <value>0</value>
    </param>
    <param>
      <key>ant25</key>
      <value></value>
    </param>
    <param>
      <key>bw25</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq25</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain25</key>
      <value>False</value>
    </param>
    <param>
      <key>gain25</key>
      <value>0</value>
    </param>
    <param>
      <key>ant26</key>
      <value></value>
    </param>
    <param>
      <key>bw26</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq26</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain26</key>
      <value>False</value>
    </param>
    <param>
      <key>gain26</key>
      <value>0</value>
    </param>
    <param>
      <key>ant27</key>
      <value></value>
    </param>
    <param>
      <key>bw27</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq27</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain27</key>
      <value>False</value>
    </param>
    <param>
      <key>gain27</key>
      <value>0</value>
    </param>
    <param>
      <key>ant28</key>
      <value></value>
    </param>
    <param>
      <key>bw28</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq28</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain28</key>
      <value>False</value>
    </param>
    <param>
      <key>gain28</key>
      <value>0</value>
    </param>
    <param>
      <key>ant29</key>
      <value></value>
    </param>
    <param>
      <key>bw29</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq29</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain29</key>
      <value>False</value>
    </param>
    <param>
      <key>gain29</key>
      <value>0</value>
    </param>
    <param>
      <key>ant2</key>
      <value></value>
    </param>
    <param>
      <key>bw2</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq2</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain2</key>
      <value>False</value>
    </param>
    <param>
      <key>gain2</key>
      <value>0</value>
    </param>
    <param>
      <key>ant30</key>
      <value></value>
    </param>
    <param>
      <key>bw30</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq30</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain30</key>
      <value>False</value>
    </param>
    <param>
      <key>gain30</key>
      <value>0</value>
    </param>
    <param>
      <key>ant31</key>
      <value></value>
    </param>
    <param>
      <key>bw31</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq31</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain31</key>
      <value>False</value>
    </param>
    <param>
      <key>gain31</key>
      <value>0</value>
    </param>
    <param>
      <key>ant3</key>
      <value></value>
    </param>
    <param>
      <key>bw3</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq3</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain3</key>
      <value>False</value>
    </param>
    <param>
      <key>gain3</key>
      <value>0</value>
    </param>
    <param>
      <key>ant4</key>
      <value></value>
    </param>
    <param>
      <key>bw4</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq4</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain4</key>
      <value>False</value>
    </param>
    <param>
      <key>gain4</key>
      <value>0</value>
    </param>
    <param>
      <key>ant5</key>
      <value></value>
    </param>
    <param>
      <key>bw5</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq5</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain5</key>
      <value>False</value>
    </param>
    <param>
      <key>gain5</key>
      <value>0</value>
    </param>
    <param>
      <key>ant6</key>
      <value></value>
    </param>
    <param>
      <key>bw6</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq6</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain6</key>
      <value>False</value>
    </param>
    <param>
      <key>gain6</key>
      <value>0</value>
    </param>
    <param>
      <key>ant7</key>
      <value></value>
    </param>
    <param>
      <key>bw7</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq7</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain7</key>
      <value>False</value>
    </param>
    <param>
      <key>gain7</key>
      <value>0</value>
    </param>
    <param>
      <key>ant8</key>
      <value></value>
    </param>
    <param>
      <key>bw8</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq8</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain8</key>
      <value>False</value>
    </param>
    <param>
      <key>gain8</key>
      <value>0</value>
    </param>
    <param>
      <key>ant9</key>
      <value></value>
    </param>
    <param>
      <key>bw9</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq9</key>
      <value>0</value>
    </param>
    <param>
      <key>norm_gain9</key>
      <value>False</value>
    </param>
    <param>
      <key>gain9</key>
      <value>0</value>
    </param>
    <param>
      <key>clock_rate</key>
      <value>0.0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dev_addr</key>
      <value></value>
    </param>
    <param>
      <key>dev_args</key>
      <value>""</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(632, 1676)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>uhd_usrp_sink_0</value>
    </param>
    <param>
      <key>type</key>
      <value>fc32</value>
    </param>
    <param>
      <key>clock_source0</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec0</key>
      <value></value>
    </param>
    <param>
      <key>time_source0</key>
      <value></value>
    </param>
    <param>
      <key>clock_source1</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec1</key>
      <value></value>
    </param>
    <param>
      <key>time_source1</key>
      <value></value>
    </param>
    <param>
      <key>clock_source2</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec2</key>
      <value></value>
    </param>
    <param>
      <key>time_source2</key>
      <value></value>
    </param>
    <param>
      <key>clock_source3</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec3</key>
      <value></value>
    </param>
    <param>
      <key>time_source3</key>
      <value></value>
    </param>
    <param>
      <key>clock_source4</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec4</key>
      <value></value>
    </param>
    <param>
      <key>time_source4</key>
      <value></value>
    </param>
    <param>
      <key>clock_source5</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec5</key>
      <value></value>
    </param>
    <param>
      <key>time_source5</key>
      <value></value>
    </param>
    <param>
      <key>clock_source6</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec6</key>
      <value></value>
    </param>
    <param>
      <key>time_source6</key>
      <value></value>
    </param>
    <param>
      <key>clock_source7</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec7</key>
      <value></value>
    </param>
    <param>
      <key>time_source7</key>
      <value></value>
    </param>
    <param>
      <key>nchan</key>
      <value>1</value>
    </param>
    <param>
      <key>num_mboards</key>
      <value>1</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>hide_cmd_port</key>
      <value>False</value>
    </param>
    <param>
      <key>hide_lo_controls</key>
      <value>True</value>
    </param>
    <param>
      <key>stream_args</key>
      <value></value>
    </param>
    <param>
      <key>stream_chans</key>
      <value>[]</value>
    </param>
    <param>
      <key>sync</key>
      <value></value>
    </param>
    <param>
      <key>len_tag_name</key>
      <value>packet_len</value>
    </param>
    <param>
      <key>otw</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>uhd_usrp_source</key>
    <param>
      <key>alias</key>
      <value></value>
    </param>
    <param>
      <key>ant0</key>
      <value>RX2</value>
    </param>
    <param>
      <key>bw0</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq0</key>
      <value>rx_center_freq</value>
    </param>
    <param>
      <key>dc_offs_enb0</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb0</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain0</key>
      <value>False</value>
    </param>
    <param>
      <key>gain0</key>
      <value>rx_gain</value>
    </param>
    <param>
      <key>lo_export0</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source0</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant10</key>
      <value></value>
    </param>
    <param>
      <key>bw10</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq10</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb10</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb10</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain10</key>
      <value>False</value>
    </param>
    <param>
      <key>gain10</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export10</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source10</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant11</key>
      <value></value>
    </param>
    <param>
      <key>bw11</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq11</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb11</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb11</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain11</key>
      <value>False</value>
    </param>
    <param>
      <key>gain11</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export11</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source11</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant12</key>
      <value></value>
    </param>
    <param>
      <key>bw12</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq12</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb12</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb12</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain12</key>
      <value>False</value>
    </param>
    <param>
      <key>gain12</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export12</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source12</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant13</key>
      <value></value>
    </param>
    <param>
      <key>bw13</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq13</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb13</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb13</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain13</key>
      <value>False</value>
    </param>
    <param>
      <key>gain13</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export13</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source13</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant14</key>
      <value></value>
    </param>
    <param>
      <key>bw14</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq14</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb14</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb14</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain14</key>
      <value>False</value>
    </param>
    <param>
      <key>gain14</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export14</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source14</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant15</key>
      <value></value>
    </param>
    <param>
      <key>bw15</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq15</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb15</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb15</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain15</key>
      <value>False</value>
    </param>
    <param>
      <key>gain15</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export15</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source15</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant16</key>
      <value></value>
    </param>
    <param>
      <key>bw16</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq16</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb16</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb16</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain16</key>
      <value>False</value>
    </param>
    <param>
      <key>gain16</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export16</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source16</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant17</key>
      <value></value>
    </param>
    <param>
      <key>bw17</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq17</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb17</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb17</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain17</key>
      <value>False</value>
    </param>
    <param>
      <key>gain17</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export17</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source17</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant18</key>
      <value></value>
    </param>
    <param>
      <key>bw18</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq18</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb18</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb18</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain18</key>
      <value>False</value>
    </param>
    <param>
      <key>gain18</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export18</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source18</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant19</key>
      <value></value>
    </param>
    <param>
      <key>bw19</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq19</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb19</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb19</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain19</key>
      <value>False</value>
    </param>
    <param>
      <key>gain19</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export19</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source19</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant1</key>
      <value></value>
    </param>
    <param>
      <key>bw1</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq1</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb1</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb1</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain1</key>
      <value>False</value>
    </param>
    <param>
      <key>gain1</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export1</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source1</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant20</key>
      <value></value>
    </param>
    <param>
      <key>bw20</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq20</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb20</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb20</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain20</key>
      <value>False</value>
    </param>
    <param>
      <key>gain20</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export20</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source20</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant21</key>
      <value></value>
    </param>
    <param>
      <key>bw21</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq21</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb21</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb21</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain21</key>
      <value>False</value>
    </param>
    <param>
      <key>gain21</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export21</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source21</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant22</key>
      <value></value>
    </param>
    <param>
      <key>bw22</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq22</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb22</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb22</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain22</key>
      <value>False</value>
    </param>
    <param>
      <key>gain22</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export22</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source22</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant23</key>
      <value></value>
    </param>
    <param>
      <key>bw23</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq23</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb23</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb23</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain23</key>
      <value>False</value>
    </param>
    <param>
      <key>gain23</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export23</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source23</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant24</key>
      <value></value>
    </param>
    <param>
      <key>bw24</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq24</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb24</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb24</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain24</key>
      <value>False</value>
    </param>
    <param>
      <key>gain24</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export24</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source24</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant25</key>
      <value></value>
    </param>
    <param>
      <key>bw25</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq25</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb25</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb25</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain25</key>
      <value>False</value>
    </param>
    <param>
      <key>gain25</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export25</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source25</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant26</key>
      <value></value>
    </param>
    <param>
      <key>bw26</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq26</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb26</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb26</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain26</key>
      <value>False</value>
    </param>
    <param>
      <key>gain26</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export26</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source26</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant27</key>
      <value></value>
    </param>
    <param>
      <key>bw27</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq27</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb27</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb27</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain27</key>
      <value>False</value>
    </param>
    <param>
      <key>gain27</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export27</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source27</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant28</key>
      <value></value>
    </param>
    <param>
      <key>bw28</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq28</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb28</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb28</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain28</key>
      <value>False</value>
    </param>
    <param>
      <key>gain28</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export28</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source28</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant29</key>
      <value></value>
    </param>
    <param>
      <key>bw29</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq29</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb29</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb29</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain29</key>
      <value>False</value>
    </param>
    <param>
      <key>gain29</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export29</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source29</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant2</key>
      <value></value>
    </param>
    <param>
      <key>bw2</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq2</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb2</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb2</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain2</key>
      <value>False</value>
    </param>
    <param>
      <key>gain2</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export2</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source2</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant30</key>
      <value></value>
    </param>
    <param>
      <key>bw30</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq30</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb30</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb30</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain30</key>
      <value>False</value>
    </param>
    <param>
      <key>gain30</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export30</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source30</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant31</key>
      <value></value>
    </param>
    <param>
      <key>bw31</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq31</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb31</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb31</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain31</key>
      <value>False</value>
    </param>
    <param>
      <key>gain31</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export31</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source31</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant3</key>
      <value></value>
    </param>
    <param>
      <key>bw3</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq3</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb3</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb3</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain3</key>
      <value>False</value>
    </param>
    <param>
      <key>gain3</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export3</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source3</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant4</key>
      <value></value>
    </param>
    <param>
      <key>bw4</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq4</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb4</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb4</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain4</key>
      <value>False</value>
    </param>
    <param>
      <key>gain4</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export4</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source4</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant5</key>
      <value></value>
    </param>
    <param>
      <key>bw5</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq5</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb5</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb5</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain5</key>
      <value>False</value>
    </param>
    <param>
      <key>gain5</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export5</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source5</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant6</key>
      <value></value>
    </param>
    <param>
      <key>bw6</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq6</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb6</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb6</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain6</key>
      <value>False</value>
    </param>
    <param>
      <key>gain6</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export6</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source6</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant7</key>
      <value></value>
    </param>
    <param>
      <key>bw7</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq7</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb7</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb7</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain7</key>
      <value>False</value>
    </param>
    <param>
      <key>gain7</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export7</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source7</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant8</key>
      <value></value>
    </param>
    <param>
      <key>bw8</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq8</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb8</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb8</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain8</key>
      <value>False</value>
    </param>
    <param>
      <key>gain8</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export8</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source8</key>
      <value>internal</value>
    </param>
    <param>
      <key>ant9</key>
      <value></value>
    </param>
    <param>
      <key>bw9</key>
      <value>0</value>
    </param>
    <param>
      <key>center_freq9</key>
      <value>0</value>
    </param>
    <param>
      <key>dc_offs_enb9</key>
      <value>""</value>
    </param>
    <param>
      <key>iq_imbal_enb9</key>
      <value>""</value>
    </param>
    <param>
      <key>norm_gain9</key>
      <value>False</value>
    </param>
    <param>
      <key>gain9</key>
      <value>0</value>
    </param>
    <param>
      <key>lo_export9</key>
      <value>False</value>
    </param>
    <param>
      <key>lo_source9</key>
      <value>internal</value>
    </param>
    <param>
      <key>clock_rate</key>
      <value>0.0</value>
    </param>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>affinity</key>
      <value></value>
    </param>
    <param>
      <key>dev_addr</key>
      <value>""</value>
    </param>
    <param>
      <key>dev_args</key>
      <value>""</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(24, 316)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>uhd_usrp_source_0</value>
    </param>
    <param>
      <key>maxoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>clock_source0</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec0</key>
      <value></value>
    </param>
    <param>
      <key>time_source0</key>
      <value></value>
    </param>
    <param>
      <key>clock_source1</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec1</key>
      <value></value>
    </param>
    <param>
      <key>time_source1</key>
      <value></value>
    </param>
    <param>
      <key>clock_source2</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec2</key>
      <value></value>
    </param>
    <param>
      <key>time_source2</key>
      <value></value>
    </param>
    <param>
      <key>clock_source3</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec3</key>
      <value></value>
    </param>
    <param>
      <key>time_source3</key>
      <value></value>
    </param>
    <param>
      <key>clock_source4</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec4</key>
      <value></value>
    </param>
    <param>
      <key>time_source4</key>
      <value></value>
    </param>
    <param>
      <key>clock_source5</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec5</key>
      <value></value>
    </param>
    <param>
      <key>time_source5</key>
      <value></value>
    </param>
    <param>
      <key>clock_source6</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec6</key>
      <value></value>
    </param>
    <param>
      <key>time_source6</key>
      <value></value>
    </param>
    <param>
      <key>clock_source7</key>
      <value></value>
    </param>
    <param>
      <key>sd_spec7</key>
      <value></value>
    </param>
    <param>
      <key>time_source7</key>
      <value></value>
    </param>
    <param>
      <key>minoutbuf</key>
      <value>0</value>
    </param>
    <param>
      <key>nchan</key>
      <value>1</value>
    </param>
    <param>
      <key>num_mboards</key>
      <value>1</value>
    </param>
    <param>
      <key>type</key>
      <value>fc32</value>
    </param>
    <param>
      <key>samp_rate</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>hide_cmd_port</key>
      <value>False</value>
    </param>
    <param>
      <key>hide_lo_controls</key>
      <value>True</value>
    </param>
    <param>
      <key>stream_args</key>
      <value></value>
    </param>
    <param>
      <key>stream_chans</key>
      <value>[]</value>
    </param>
    <param>
      <key>sync</key>
      <value></value>
    </param>
    <param>
      <key>otw</key>
      <value></value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1536, 340)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1056, 1164)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1336, 1404)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Pre-OFDM</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(872, 1628)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Time Domain</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1536, 396)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_sink</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(1176, 732)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_sink_1_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload IQ</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 596)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Stream</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 836)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload IQ</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 1596)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Pre-OFDM</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 1708)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_0_0</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Time Domain</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(8, 1492)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(8, 1412)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_0_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Header Bits</value>
    </param>
  </block>
  <block>
    <key>virtual_source</key>
    <param>
      <key>comment</key>
      <value></value>
    </param>
    <param>
      <key>_enabled</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 724)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
    <param>
      <key>id</key>
      <value>virtual_source_1</value>
    </param>
    <param>
      <key>stream_id</key>
      <value>Payload Stream</value>
    </param>
  </block>
  <connection>
    <source_block_id>analog_const_source_x_0</source_block_id>
    <sink_block_id>blocks_short_to_char_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>analog_frequency_modulator_fc_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_delay_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
    <sink_block_id>blocks_tag_gate_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_multiply_xx_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
    <sink_block_id>digital_crc32_bb_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
    <sink_block_id>digital_crc32_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
    <sink_block_id>header_bits</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_0_0</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_repack_bits_bb_0_1</source_block_id>
    <sink_block_id>virtual_sink_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_short_to_char_0</source_block_id>
    <sink_block_id>blocks_stream_to_tagged_stream_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_stream_to_tagged_stream_0_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tag_gate_0</source_block_id>
    <sink_block_id>qtgui_time_sink_x_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tag_gate_0</source_block_id>
    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_mux_0_0</source_block_id>
    <sink_block_id>virtual_sink_0_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
    <sink_block_id>blocks_tuntap_pdu_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>pdus</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tuntap_pdu_0</source_block_id>
    <sink_block_id>blocks_message_debug_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>print_pdu</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_tuntap_pdu_0</source_block_id>
    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
    <source_key>pdus</source_key>
    <sink_key>pdus</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_chunks_to_symbols_xx_0_1</source_block_id>
    <sink_block_id>blocks_tagged_stream_mux_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
    <sink_block_id>digital_packet_headerparser_b_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_1</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_file_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_tag_debug_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0</source_block_id>
    <sink_block_id>blocks_tagged_stream_to_pdu_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_crc32_bb_0_0</source_block_id>
    <sink_block_id>digital_protocol_formatter_bb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>virtual_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>virtual_sink_1</sink_block_id>
    <source_key>1</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_carrier_allocator_cvc_0</source_block_id>
    <sink_block_id>fft_vxx_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_chanest_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id>
    <sink_block_id>blocks_tag_debug_0_2_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id>
    <sink_block_id>virtual_sink_0_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_header</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_1</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_payload</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_header</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_payload</source_block_id>
    <sink_block_id>virtual_sink_1_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>1</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>analog_frequency_modulator_fc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_packet_headerparser_b_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>header_data</source_key>
    <sink_key>header_data</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_protocol_formatter_bb_0</source_block_id>
    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_0</source_block_id>
    <sink_block_id>digital_ofdm_chanest_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_0_0</source_block_id>
    <sink_block_id>digital_ofdm_cyclic_prefixer_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_1</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>uhd_usrp_source_0</source_block_id>
    <sink_block_id>blocks_delay_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>uhd_usrp_source_0</source_block_id>
    <sink_block_id>digital_ofdm_sync_sc_cfb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0</source_block_id>
    <sink_block_id>fft_vxx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_0</source_block_id>
    <sink_block_id>digital_ofdm_carrier_allocator_cvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_0_0</source_block_id>
    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_0_1</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_0_1</source_block_id>
    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>virtual_source_1</source_block_id>
    <sink_block_id>fft_vxx_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
</flow_graph>



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