[time-nuts] Free programs to read NEMA data.
bg at lysator.liu.se
Sat Jan 17 23:55:33 UTC 2009
On Sat, 2009-01-17 at 16:30 -0700, M. Warner Losh wrote:
> In message: <ca1.4beaaa2e.36a3c0db at aol.com>
> N3IZN at aol.com writes:
> : OK I found my registration for NMEAT. Now that I upgraded my hobby PC I'm
> : giving it a work out by running as many applications as I can. I have NMEAT
> : running from a Jupiter GPS engine and I have T-Bolt mon going at the same time.
> : They are 16 seconds off from each other? I see on Tboltmon there is a field
> : for UTC offset and 15 seconds is entered there. Any ideas?
> The current UTC GPS offset is 16, and has been for the last 17 days or
> so :)
That is not the view of USNO...
nor the Meinberg receiver I take care of.
$ ntpq -c cv timehost.lysator.liu.se | grep gps_utc
gps_utc_correction="current correction 15 sec, last correction on
cd068600.00000000 Thu, Jan 1 2009 0:00:00.000",
However I once had a Jupiter receiver where the NMEA output came 1.0xx
seconds late or 2.0xx seconds late. Btw, the Jupiter/Zodiac binary was
much better timed.
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