Tom, You're close. The M12 series actually has a 16.367 MHz crystal (TCXO in the M12M). What enables the M12 to get down to +/-12 ns is that it can place the 1PPS on both the rising and falling edges of the clock.
Randy ________________________________________________________________________ ________________________________ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Van Baak Sent: Wednesday, June 14, 2006 2:39 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] M12T and M12M > Can somebody tell me the master clock frequency of the M12T and M12M > GPS receivers? > > Thanks, > Matt The old Oncore VP used a 9.54 MHz oscillator and had sawtooth error of about 104 ns (+/- 52 ns). The M12 has jitter closer to 25 ns (+/- 12 ns) which would imply a clock frequency of approximately 40 MHz. See also: http://www.leapsecond.com/pages/m12/sawtooth.htm /tvb _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
