Right; I'm referring to noise past 1 kHz or so. The best VHF oscillators are much quieter than comparable 5/10 MHz oscillators. At least, I've never seen a 5 or 10 MHz unit that's rated below -175 dBc/Hz at 20-100 kHz.
-- john, KE5FX > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of John Ackermann N8UR > Sent: Thursday, April 24, 2008 5:21 AM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Disciplining Rubidium > > > John Miles wrote: > > Phase noise generally gets better with the higher-frequency > OCXOs, though. > > I think the best of all possible worlds would be a 5-MHz OCXO > like the one > > you describe, being used to discipline a 10 MHz or > higher-frequency part. > > > > -- john, KE5FX > > I'm not sure about that -- at least, the Wenzel ULNs show better noise > at small offsets for the 5 MHz than the 10 MHz versions (though the > floor is the same). > > _______________________________________________ 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.