My first thought was "IQ imbalance", but it's pretty strong. Which USRP and daughterboard do you have?
M On 10.08.2015 09:24, Luca Pascale wrote: > Hi all, > > why when I use: > uhd::tune_request_t tr(tuningFreq); > USRP_DEVICE->set_rx_freq(tr); > > I get a spectrum that is "mirrored" around the tuninFreq ? > See: http://picpaste.com/sp-zJquS0qK.png > with tuningFreq = 149.8 MHz, input signal at F = 150 MHz (from signal > generator) > > If I use a LO offset different from zero the mirror effect disappear. > > Why ? > > Thanks, > Luca > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
