Chris, The 3575A does NOT have adequate phase resolution to set an Rb source to match a GPSDO. A few, now rather old, phase meters were sold for this purpose, but they used a strip chart recorder to average phase shift over 1 to 24 hour measurement times & required great investments of time to use.
I proposed a 1KHz heterodyne scheme for this very purpose on this list a few months ago. The scheme took a few hits for lack of state- of-the-art performance, but I'm still using it without suffering any disappointments. It does require you to have a few items of test equipment (readily available on eBay) which not everyone has & it requires some circuit construction using readily available parts. Except you must wind a couple of 5mH inductors on your own. Contact me off-list if you want more details. Regards, Pete Rawson _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
