Derek, that manual is the C++ API. How would I format the tune policy information in python? It's not clear to me looking at the C++ API and the Python API for the set_center_freq python function. Could you give an example of how you would call
C++: http://files.ettus.com/manual/structuhd_1_1tune__request__t.html Python: http://www.gnuradio.org/doc/sphinx/uhd_blocks.html#gnuradio.uhd.usrp_sink set_center_freq(center_freq, <USE_DSP_TUNING_WHEN_POSSIBLE>) What goes in place of the careted argument? Rich On Mon, Jun 13, 2016 at 3:31 PM, Derek Kozel <derek.ko...@ettus.com> wrote: > 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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