Try at lower and higher frequencies—are the jumps the same or proportional to frequency?
Sent from my iPhone > On Nov 24, 2020, at 11:27 AM, Luke Whittlesey via USRP-users > <usrp-users@lists.ettus.com> wrote: > > On the E310 I'm seeing discrete jumps in the carrier. The carrier will > intermittently jump around in steps of about 50Hz. Sometimes it will > jump by about 200Hz. I've attached a waterfall display, but I don't > know if attachments will make it through. > > My setup is: > E310 SG3 > UHD3.11 using the C-api > Timing Reference is "internal" > Center Frequency 1GHz > I/Q signal is a stream of 1,0... for a CW at the carrier > > I can see the same thing when I set the timesource to "gpsdo", but I > wouldn't expect it when I set it to "internal". My gut says that this > is being caused by some timesource correction loop. If this is the > case is there a way to disable this? > > Thank you > <e310-lo-frequency-shifts2.png> > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
