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Re: Changing the frequency of signal source at runtime

From: Glen Langston
Subject: Re: Changing the frequency of signal source at runtime
Date: Wed, 14 Jul 2021 13:04:06 -0400


Maybe you could share your .grc or python file.

I’ve had pretty good luck with gnuradio 3.7.13 and SDRPlay RSP1A,
where changing the frequency works fine.   

I’ve not gotten SDRPlay RSP1A to work with gnuradio 3.8, as they’re
not interested in following gnuradio changes any longer.

What gnuradio version are you using?



> On Jul 14, 2021, at 11:59 AM, Pratik Bhogale <pbhogale@uncc.edu> wrote:
> Hi team,
> I hope you are well.
> I need help with changing the tuned frequency of the source RSP1A, after a 
> certain amount of time.
> I have tried multiple potential solutions that I found online through mailing 
> lists and FAQs and other solutions fr reconfiguring the flowgraph using lock 
> and unlock, wait and time.sleep(), etc. and then invoking the 
> set_rsp1a_freq_mhz().
> I have not been able to get any result from any of those solutions.
> I need my flowgraph to execute for a certain amount of time at a particular 
> frequency for the RSP1A, then I want to change the frequency and rerun the 
> flowgraph for some time, change the frequency again, so on and so forth.
> Kindly help in figuring this out.
> Best regards
> Pratik Bhogale.

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