> Objective : we need to make this desired frequency only dependant on the NCO > frequency and independant on the the VCO frequency, so first we should know > how gnuradio control these two values so that we could develop a method to > make it only dependant on NCO frequency.
take a look at uhd::tune_request_t and uhd::tune_result_t http://www.ettus.com/uhd_docs/doxygen/html/structuhd_1_1tune__result__t.html http://www.ettus.com/uhd_docs/doxygen/html/structuhd_1_1tune__request__t.html You can use the policy_t, inter_freq (VCO) and dsp_freq (NCO) to control the tuning. Also, tune_request's can be passed into calls to set_center_freq() on gr-uhd sink and source block and get a tune_result back: http://www.ettus.com/uhd_docs/doxygen/html/classuhd_1_1usrp_1_1multi__usrp.html#a9b61448f392466e20572fdcb042e8ec6 Jason _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
