[ntp:questions] Re: Using a Rubidium clock with NTP

Paul Croome Paul.Croome at softwareag.com
Thu Oct 7 07:28:54 UTC 2004

"Geoff Horner" <geoffh at bigfoot.com.au> wrote in message news:<mailman.31.1095599860.26599.questions at ntp.org>...
> Hi all; My first post.
> What is the best way to use a Rubidium oscillator with a PPS output as a st
> ratum 1 server?


I suggest using your Rb PPS with the NTP PPS driver (type 22).
Your Rb oscillator probably doesn't tick synchronously with the TIA/UTC/GPS
second, so observe the offset between the Rb ticks and GPS time, then
set the time1 fudge factor to compensate.

The NTP server that is running the PPS driver also needs another source of time,
so that it can number the ticks. Any clock that is within +/- 0.5 second
should do.


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