Hi Rich, You can create and pass a tune_request_t into the set frequency call of a USRP object. This gives you control of how it tunes. By default it does not optimize for speed to my knowledge. http://files.ettus.com/manual/structuhd_1_1tune__request__t.html
Depending on what USRP you are using there are self calibration thresholds which will cause a retune to incur a delay when tuning outside of a certain range. On the B200 for instance this range is 100MHz. Regards, Derek On Mon, Jun 13, 2016 at 3:05 PM, Richard Bell <richard.be...@gmail.com> wrote: > I am using set_center_freq(center_freq) in my python script to retune my > USRP to various center frequencies. Does this command use the smartest > retune technique to get to the new frequency? > > For example, if I want to retune from 900.000 MHz to 900.001 MHz ( a 1 kHz > change), will it use DSP tuning instead of RF tuning for speed? Is there a > way to control this through python? > > In my testing, it seems the retune time is constant whether I make a 1 GHz > hop, a 3 MHz hop or a 1 kHz hop, which makes me think I'm overlooking > something. > > Thanks, > Rich > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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