Try reducing the amplitude to 0.7. Another possibility is that your computer can't keep up. If you are using one of the standard programs, are there U's printing in the terminal?
Matt On Tue, Jan 7, 2014 at 3:03 PM, Jonathan Fox <[email protected]>wrote: > A colleague and I are sending a simple signal in GNU Radio (sine wave, 1 > MHz, amplitude of 1) to the USRP sink and have the center frequency at 500 > MHz. The N210 USRP is hooked up to an Agilent spectrum analyzer. On the > analyzer we are seeing a weird phenomena every two seconds. At first we see > the carrier frequency and two sidebands from the sine wave (see attached > normal.gif). Then after two seconds we get two bursts of multiple harmonics > (see odd.gif). > > The question is, why is this happening? Does the phase of the 1 KHz signal > become discontinuous before or after being sent to the USRP? > > Thanks, > > Jon Fox > > _______________________________________________ > USRP-users mailing list > [email protected] > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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