> > > I am keen to measure close in phase noise 1Hz to 1 MHz offset on 100 MHz > clocks. >
We have some preliminary results on 100MHz using an Ettus B210 SDR. The RF front-end is an AD9361, and if you search on ebay you will find B210 clones at about half the NI/Ettus price (haven't tried those..) One issue is ch1-to-ch2 isolation, which isn't stellar on the B210. I'm sure John can enlighten us on the importance of channel isolation for digital PN and ADEV measurements ;) The brute-force approach may be to use two B210s in parallel? gnu-radio is quite good for processing the samples - maybe the digilent or red pitaya also have gnu-radio drivers? AW _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
