Hello cesar, never, ever, use a Throttle in a flow graph with a hardware source. You run into the two-clock problem. In fact, GRC emits a clear warning that you should not have a throttle there.
Best regards, Marcus On Fri, 2018-12-07 at 17:01 -0600, cesar wrote: > Hello > > Im new in GNUradio and I am trying to build a spectrum analyzer using a > USRP, to sweep the spectrum from 0 to 112 MHz. In order to scan the > total 112 MHz window, I see individual 8 MHz bandwidth windows at a > time. But I see that at 64 MHz the spectrum repeats. > > My question is why the spectrum repeats at 64 MHz? and how can I solve > it? > > Somebody can help me please? > > The features of the USRP are: > > ADC sample rate = 64 MS/s > clock frequency = 64 MHz > daughterboard = BasicRX with range 1-250 MHz > > I attach the spectrum of the 0-8 MHz and 64-72 MHz windows to example > the case and my flowgraph in GRC. > > Thanks for the help > > _______________________________________________ > 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