No idea, really. It may not even be a universal principle but it sure seems that way.
Something in the Datum 9390 I have also degrades the noise quite a bit, relative to what comes out of the FRS-C Rb module. -- john, KE5FX > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Hal Murray > Sent: Wednesday, April 23, 2008 8:52 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Disciplining Rubidium > > > > > 11) Short-term phase noise; the GPS-Rb sources don't seem to be as > > clean as the better GPS-OCXO packages. > > Is there something fundamental that causes that, or is it just an > engineering > quirk? > > One guess would be that they don't use as good/expensive a > crystal in the Rb > setup because they don't need it for holdover. > > _______________________________________________ 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.
