You’re presumably transmitting a 10kHz tone at 80Mhz? Is your counter locked to the same reference as the USRP?
Sent from my iPhone > On Jan 23, 2020, at 5:30 PM, Remco Vink via USRP-users > <usrp-users@lists.ettus.com> wrote: > > > All, > > I am currently trying to generate a stable sine wave out of the B200 TX port. > The B200 is referenced to both a 10Mhz and 1PPS coming from a cesium clock. > > However when measuring the output on a Frequency Counter the frequency seems > to be changing slightly throughout. > For generating the Sine I tried both Gnuradio and setting a carrier > frequency, and I tried the ettus TX waveforms example. > > The code currently outputs the following: > [INFO] [B200] Actually got clock rate 16.000000 MHz. > Now confirming lock on clock signals... > Ref: unlocked > Ref: locked > get master CLK_rate: 16000000.000000 > [INFO] [B200] Asking for clock rate 32.000000 MHz... > [INFO] [B200] Actually got clock rate 32.000000 MHz. > get TX freq: 80000000.000000 > > What is the cause of difference between the Frequency Counter and the Claimed > output, and can this be fixed? > <IMG_20200123_162036.jpg> > _______________________________________________ > 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
