In gnu radio companion for a UHD block, how do I set the DSP frequency as well as the RF frequency. I have done this in my C code which doesn't use gnuradio using the tune_request_t structure. From the comments in the python code, it appears that there is some way to do it.
I understand that I want to use the DSP LO so that the DC component from the ADC is moved outside the baseband. Is there a good value or is anything outside my receive bandwidth is ok? Is there a reason to use the DSP LO on the transmit side? Does the up conversion happen before or after the DSP LO? Thanks, Frank Wallace
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