On Tue, Oct 30, 2012 at 5:28 PM, Joseph Gray <jg...@zianet.com> wrote:
> > Is the programmable FE-5680A suitable to replace the 12.8 MHz > reference in a Midland XTR? If so, where do I feed the rubidium into > the circuit The long term characteristics of the Rb are very good. But short term a crystal oscillator might be better. You can have the best of both if you phase lock a crystal oscillator to the Rb. This whould give you something more like the GPSDO where the 10MHz output is from a crystal but there is a control on the longer term drift. You'd have a "Rubiidium disciplined XO." You still need access to some kind of "standard" like from GPS so you can calibrate the Rb. Your best bet would be to build a GPSDO that runs directly at the desired 12.8Mhz. Most off the shelf GPSDOs run at 10Mhz so this is a good reason to DIY. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
