[ntp:questions] ESR looking for good GPS clocks

Chris Albertson albertson.chris at gmail.com
Tue Mar 6 21:11:41 UTC 2012


On Tue, Mar 6, 2012 at 12:59 PM, Ron Frazier (NTP)
<timekeepingntplist at c3energy.com> wrote:

> I looked in the manual for the Garmin and for the Trimble Resolution T.  All
> they say is that the NMEA is referenced to the PPS, but they don't give a
> spec for the delta between them.  Of course, my GPS has no PPS, but the NMEA
> output has to be referenced to something!

What you read is exactly correct.  THERE IS NO SPEC FOR THE DELTA
except they say it can't run over into the next second.



Chris Albertson
Redondo Beach, California


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