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List: gnuradio-discuss
Subject: Re: [Discuss-gnuradio] RTL-SDR device failed to open in flowgraph
From: Ellie White <orionnebula42 () outlook ! com>
Date: 2018-02-25 16:08:07
Message-ID: CY1PR0501MB16609F3F6FF5F6171BA441ACBEC20 () CY1PR0501MB1660 ! namprd05 ! prod ! outlook ! com
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Hello,
Just wanted to let you all know that this problem is resolved. I followed the \
instructions here:
https://www.reddit.com/r/RTLSDR/comments/3fx5t4/windows_10_and_rtl2832r820t_quick_and_frustration/
And now the flowgraph is working fine, with no errors! Have a great afternoon and \
thanks so much,
Ellie
________________________________
From: Marcus D. Leech <mleech@ripnet.com>
Sent: Friday, February 23, 2018 6:50 PM
To: Ellie White; Glen Langston
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] RTL-SDR device failed to open in flowgraph
On 02/23/2018 05:51 PM, Ellie White wrote:
Hi all,
Thanks for sharing that, Marcus! I agree with Glen that it looks like a great tool, \
and I look forward to testing it out -- feel free to post it on the Open Source Radio \
Telescopes mailing list as well in case there are folks there who would like to use \
it, too.
I think I had done that in the past, but will do so again.
So, back to the original question -- I am still not having any luck getting my \
RTL-SDR dongle to work with GNURadio on Windows 10, despite the fact that the dongle \
works just fine with SDR# on the same computer. Is this a known issue, and if so, are \
there any solutions I could try? I was hoping to use GNU Radio to test out a new \
antenna I built soon, so if anyone has any advice about this, again I would really \
appreciate hearing it!
Many thanks in advance!
I'm not a Windows guy at all, so I cannot help. Wish I could.
Can anyone here help Ellie get GR-based "stuff" going with RTL-SDR on W10? Anything \
to look out for?
Also, there's the ##rtlsdr IRC channel -- a pile of Windows folks on there.
Ellie
________________________________
From: Discuss-gnuradio \
<discuss-gnuradio-bounces+orionnebula42=outlook.com@gnu.org><mailto:discuss-gnuradio-bounces+orionnebula42=outlook.com@gnu.org> \
on behalf of Glen Langston \
<glen.i.langston@gmail.com><mailto:glen.i.langston@gmail.com>
Sent: Friday, February 23, 2018 7:01 AM
To: Marcus D. Leech
Cc: discuss-gnuradio@gnu.org<mailto:discuss-gnuradio@gnu.org>
Subject: Re: [Discuss-gnuradio] RTL-SDR device failed to open in flowgraph
Hi Marcus and Ellie,
Thanks again for the flow graph Marcus. It's a very impressive piece of work.
If one has only one SDR, it is necessary to change the input number of channels
to 1, I think(?) Then connect the 2nd channel (chan1) to the output of the source
block. The modified .grc file works right away.
Cheers
Glen
On Thu, Feb 22, 2018 at 11:36 PM, Marcus D. Leech \
<mleech@ripnet.com<mailto:mleech@ripnet.com>> wrote: On 02/22/2018 11:13 PM, Ellie \
White wrote:
Hi all,
I am an amateur radio astronomy enthusiast and I've been using an RTL-SDR (R820T) USB \
dongle for my projects; up until now I had been using a Windows 8.1 laptop, but that \
one is on the blink right now so I've switched to a Windows 10 computer. I've tried \
to plug in my SDR and run the flowgraph (attached), but I keep getting the output \
below:
Generating: 'C:\\Users\\Deana White\\Documents\\top_block.py'
Executing: C:\Program Files\GNURadio-3.7\gr-python27\python.exe -u C:\Users\Deana \
White\Documents\top_block.py
Win32; Microsoft Visual C++ version 14.0; Boost_106000; UHD_003.010.001.001-0-unknown
gr-osmosdr c653754d (0.1.5git) gnuradio 3.7.11.1
built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf bladerf airspy \
redpitaya Using device #0 Generic RTL2832U OEM
usb_open error -12
FATAL: Failed to open rtlsdr device.
Trying to fill up 1 missing channel(s) with null source(s).
This is being done to prevent the application from crashing
due to gnuradio bug #528.
gr::pagesize: no info; setting pagesize = 4096
I've run zadig for the RTL-SDR, and it works just fine with SDR#. Do you have any \
advice as to why I might be having this problem with the GNURadio flowgraph?
Thanks very much! Have a great evening and take care,
Ellie
I hope someone can help you, Ellie.
My approach would be to install an operating system on your computer. :) :) \
[That was snarkasm, just in case it wasn't obvious.... ]
Once you get it working, you (and Glen et al) might want to play with:
https://github.com/ccera-astro/spectro_radiometer<https://nam04.safelinks.protection.o \
utlook.com/?url=https%3A%2F%2Fgithub.com%2Fccera-astro%2Fspectro_radiometer&data=02%7C \
01%7C%7C8d9abb52f00f49e9ccf008d57ab54e01%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C \
636549841471892336&sdata=%2BYMCsIayCiKlERZybNHs4tg0Y97HaT%2FNYxpl2cY4rYM%3D&reserved=0>
Cheers
Marcus
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[Attachment #3 (text/html)]
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} \
--></style> </head>
<body dir="ltr">
<div id="divtagdefaultwrapper" \
style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" \
dir="ltr"> <p style="margin-top: 0px; margin-bottom: 0px;">Hello,<br>
</p>
<p><br>
</p>
<p>Just wanted to let you all know that this problem is resolved. I followed the \
instructions here: </p>
<p><a class="OWAAutoLink" id="LPlnk839211" \
href="https://www.reddit.com/r/RTLSDR/comments/3fx5t4/windows_10_and_rtl2832r820t_quick_and_frustration/" \
previewremoved="true">https://www.reddit.com/r/RTLSDR/comments/3fx5t4/windows_10_and_rtl2832r820t_quick_and_frustration/</a></p>
<p><br>
</p>
<p>And now the flowgraph is working fine, with no errors! Have a great afternoon and \
thanks so much,</p> <p><br>
</p>
<p>Ellie<br>
</p>
<div style="color: rgb(0, 0, 0);">
<hr tabindex="-1" style="width: 98%; display: inline-block;">
<div id="divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" \
style="font-size: 11pt;"><b>From:</b> Marcus D. Leech <mleech@ripnet.com><br> \
<b>Sent:</b> Friday, February 23, 2018 6:50 PM<br> <b>To:</b> Ellie White; Glen \
Langston<br> <b>Cc:</b> discuss-gnuradio@gnu.org<br>
<b>Subject:</b> Re: [Discuss-gnuradio] RTL-SDR device failed to open in \
flowgraph</font> <div> </div>
</div>
<div style="background-color: rgb(255, 255, 255);">
<div class="x_moz-cite-prefix">On 02/23/2018 05:51 PM, Ellie White wrote:<br>
</div>
<blockquote type="cite">
<div id="x_divtagdefaultwrapper" style="color: rgb(0, 0, 0); font-family: \
Calibri,Helvetica,sans-serif; font-size: 12pt;" dir="ltr"> <p style="margin-top: 0px; \
margin-bottom: 0px;">Hi all,</p> <p style="margin-top: 0px; margin-bottom: 0px;"><br>
</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Thanks for sharing that, Marcus! I \
agree with Glen that it looks like a great tool, and I look forward to testing \
it out -- feel free to post it on the Open Source Radio Telescopes \
mailing list as well in case there are folks there who would like to use it, \
too.<br> </p>
</div>
</blockquote>
I think I had done that in the past, but will do so again.<br>
<blockquote type="cite">
<div id="x_divtagdefaultwrapper" style="color: rgb(0, 0, 0); font-family: \
Calibri,Helvetica,sans-serif; font-size: 12pt;" dir="ltr"> <p style="margin-top: 0px; \
margin-bottom: 0px;"></p> <p><br>
So, back to the original question -- I am still not having any luck getting my \
RTL-SDR dongle to work with GNURadio on Windows 10, despite the fact that the dongle \
works just fine with SDR# on the same computer. Is this a known issue, and if so, are \
there any solutions I could try? I was hoping to use GNU Radio to test out a new \
antenna I built soon, so if anyone has any advice about this, again I would really \
appreciate hearing it! </p>
<p><br>
</p>
<p>Many thanks in advance!</p>
</div>
</blockquote>
I'm not a Windows guy at all, so I cannot help. Wish I could.<br>
<br>
Can anyone here help Ellie get GR-based "stuff" going with RTL-SDR on \
W10? Anything to look out for?<br> <br>
Also, there's the ##rtlsdr IRC channel -- a pile of Windows folks on there.<br>
<br>
<br>
<blockquote type="cite">
<div id="x_divtagdefaultwrapper" style="color: rgb(0, 0, 0); font-family: \
Calibri,Helvetica,sans-serif; font-size: 12pt;" dir="ltr"> <p><br>
</p>
<p>Ellie<br>
</p>
<div style="color: rgb(0, 0, 0);">
<hr tabindex="-1" style="width: 98%; display: inline-block;">
<div id="x_divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" \
style="font-size: 11pt;"><b>From:</b> Discuss-gnuradio <a \
class="x_moz-txt-link-rfc2396E" id="LPlnk604220" \
href="mailto:discuss-gnuradio-bounces+orionnebula42=outlook.com@gnu.org" \
previewremoved="true"> \
<discuss-gnuradio-bounces+orionnebula42=outlook.com@gnu.org></a> on behalf \
of Glen Langston <a class="x_moz-txt-link-rfc2396E" id="LPlnk246580" \
href="mailto:glen.i.langston@gmail.com" previewremoved="true"> \
<glen.i.langston@gmail.com></a><br> <b>Sent:</b> Friday, February 23, 2018 7:01 \
AM<br> <b>To:</b> Marcus D. Leech<br>
<b>Cc:</b> <a class="x_moz-txt-link-abbreviated" id="LPlnk311751" \
href="mailto:discuss-gnuradio@gnu.org" previewremoved="true"> \
discuss-gnuradio@gnu.org</a><br> <b>Subject:</b> Re: [Discuss-gnuradio] RTL-SDR \
device failed to open in flowgraph</font> <div> </div>
</div>
<div>
<div dir="ltr">Hi Marcus and Ellie,
<div><br>
</div>
<div>Thanks again for the flow graph Marcus. It's a very impressive piece \
of work.</div> <div>If one has only one SDR, it is necessary to change the \
input number of channels</div> <div>to 1, I think(?) Then connect the 2nd \
channel (chan1) to the output of the source</div> <div>block. The \
modified .grc file works right away.</div> <div><br>
</div>
<div>Cheers</div>
<div>Glen</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div class="x_x_gmail_extra"><br>
<div class="x_x_gmail_quote">On Thu, Feb 22, 2018 at 11:36 PM, Marcus D. Leech <span \
dir="ltr"> <<a id="LPlnk836843" href="mailto:mleech@ripnet.com" target="_blank" \
previewremoved="true">mleech@ripnet.com</a>></span> wrote:<br> <blockquote \
class="x_x_gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; \
border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: \
solid;"> <div bgcolor="#FFFFFF">
<div>
<div class="x_x_h5">
<div class="x_x_m_2545199940435200909moz-cite-prefix">On 02/22/2018 11:13 PM, Ellie \
White wrote:<br> </div>
<blockquote type="cite">
<div id="x_x_m_2545199940435200909divtagdefaultwrapper" style="color: rgb(0, 0, 0); \
font-family: Calibri,Helvetica,sans-serif; font-size: 12pt;" dir="ltr"> <p \
dir="ltr">Hi all,</p> <p dir="ltr"><br>
</p>
<p dir="ltr">I am an amateur radio astronomy enthusiast and I've been using an \
RTL-SDR (R820T) USB dongle for my projects; up until now I had been using a Windows \
8.1 laptop, but that one is on the blink right now so I've switched to a Windows 10 \
computer. I've tried to plug in my SDR and run the flowgraph (attached), but I keep \
getting the output below:</p> <p dir="ltr"><br>
</p>
<p>Generating: 'C:\\Users\\Deana White\\Documents\\top_block.<wbr>py'</p>
<p>Executing: C:\Program Files\GNURadio-3.7\gr-<wbr>python27\python.exe -u \
C:\Users\Deana White\Documents\top_block.py</p> <p>Win32; Microsoft Visual \
C++ version 14.0; Boost_106000; UHD_003.010.001.001-0-unknown</p> \
<p>gr-osmosdr c653754d (0.1.5git) gnuradio 3.7.11.1<br> built-in source types: file \
osmosdr fcd rtl rtl_tcp uhd hackrf bladerf airspy redpitaya <br>
Using device #0 Generic RTL2832U OEM<br>
usb_open error -12</p>
<p>FATAL: Failed to open rtlsdr device.</p>
<p>Trying to fill up 1 missing channel(s) with null source(s).<br>
This is being done to prevent the application from crashing<br>
due to gnuradio bug #528.</p>
<p>gr::pagesize: no info; setting pagesize = 4096</p>
<p><br>
</p>
<p>I've run zadig for the RTL-SDR, and it works just fine with SDR#. Do you have any \
advice as to why I might be having this problem with the GNURadio \
flowgraph? </p>
<p><br>
</p>
<p>Thanks very much! Have a great evening and take care,</p>
<p><br>
</p>
<p>Ellie</p>
<br>
</div>
</blockquote>
</div>
</div>
I hope someone can help you, Ellie.<br>
<br>
My approach would be to install an operating system on your \
computer. :) :) [That was snarkasm, just in case \
it wasn't obvious.... ]<br> <br>
Once you get it working, you (and Glen et al) might want to play with:<br>
<br>
<a class="x_x_m_2545199940435200909moz-txt-link-freetext" id="LPlnk852050" \
href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fc \
cera-astro%2Fspectro_radiometer&data=02%7C01%7C%7C8d9abb52f00f49e9ccf008d57ab54e01 \
%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636549841471892336&sdata=%2BYMCsIayCiKlERZybNHs4tg0Y97HaT%2FNYxpl2cY4rYM%3D&reserved=0" \
target="_blank" previewremoved="true">https://github.com/ccera-<wbr>astro/spectro_radiometer</a><br>
<br>
Cheers<span class="x_x_HOEnZb"><font color="#888888"><br>
Marcus<br>
<br>
<br>
</font></span></div>
<br>
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