http://files.ettus.com/manual/structuhd_1_1tune__request__t.html
Should help
On 2017-01-04 12:37, Sean Horton wrote:
> I have my flowgraph set up so that parameters such as rx and tx frequencies
> can be changed while running, and it's being sent two frequencies to listen
> to, freq1 and freq2, and the idea is that if there are two frequencies, to
> set the frequency to (freq1 + freq2) / 2, but the fft shows that one of the
> receive chains has the dc spike in it, which makes me think the center
> frequency is really freq1, but it's simply shifting the received signal. What
> type of request will force the center frequency to actually be at (freq1 +
> freq2) / 2? If it's a tune_request, how do you make one in cpp, I can't find
> any example of it being done. It's not a big deal, but if I can get rid of
> the dc spike, I'd certainly like to.
>
> Regards,
> --
>
> Sean Horton
>
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