[time-nuts] Some More questions
Rob Kimberley
time.bandit at btinternet.com
Thu Jan 19 14:28:33 EST 2006
Further to my last email, please see the attached GPS Timing block diagram.
Cheers
Rob K
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Matt Ettus
Sent: 19 January 2006 19:01
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Some More questions
On 1/19/06, Hal Murray <hmurray at suespammers.org> wrote:
>
> > Then, I am not sure all GPS receivers actually use their internal
> > crystal oscillator in a PLL as the timebase. I have read that some
> > work by removing or adding pulses in a discrete fashion rather than
> > phase locking, and this offers significant jitter, making the 1 PPS
> > only useable to phase lock a reference oscillator with a very long
> > integration period to eliminate the jitter.
To my knowledge, nobody tunes the frequency of the oscillator in their GPS
receiver.
Matt
_______________________________________________
time-nuts mailing list
time-nuts at febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Zyfer GPS Briefing Extract.pdf
Type: application/pdf
Size: 85107 bytes
Desc: not available
Url : http://www.febo.com/pipermail/time-nuts/attachments/20060119/47700cdd/attachment-0004.pdf
More information about the time-nuts
mailing list