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List:       gnuradio-discuss
Subject:    Re: qt gui frequency sink in frequency hopping
From:       Christophe Seguinot <christophe.seguinot () orange ! fr>
Date:       2020-12-21 12:21:43
Message-ID: 7f942361-2217-1c61-cb7c-161fa5d58eb7 () orange ! fr
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Hi

Without a   flowgraph anyone can help.

The first thing I would check : verify the sampling rate used in each 
block. When using several sampling rate, when one is uncorrectly set it 
can stop your simulation and freeze time or frequency sink.

Sincerely, Christophe

On 21/12/2020 11:50, Ali G. Dezfuli wrote:
> Hi all,
> I work on a Frequency Hopping (FH) Tx and Rx in the same grc flowchart 
> in 3.7.13.4 in Ubuntu 16.04.
> At the end of the Tx chain, I put a "Qt GUI Frequency Sink", but it 
> just shows part of subchannels in the spectrum!!!
> I changed its parameters especially "Update Period" but no change.
> The very interesting point is that when I remove the Rx chain (lessen 
> the complexity), it shows the spectrum of FH correctly!
> I really wonder why.
>
> Thanks,
> AGD

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