[ntp:questions] Garmin GPS 18x LVC huge offset between PPS and NMEA -- up to 700 ms

Steve Kostecke kostecke at ntp.org
Mon Dec 22 23:18:04 UTC 2008


On 2008-12-22, jimmyterrence at gmail.com <jimmyterrence at gmail.com> wrote:

> #gpsd
> server 127.127.28.0 minpoll 4
> fudge 127.127.28.0 refid GPS stratum 3 time1 0.7
> #PPS
> server 127.127.28.1 minpoll 4 prefer
> fudge 127.127.28.1 refid PPS stratum 0

This does not match what is shown on the gpsd & ntpd page at
http://gpsd.berlios.de/gpsd.html

| server 127.127.28.0 minpoll 4 maxpoll 4
| fudge 127.127.28.0 time1 0.420 refid GPS
| 
| server 127.127.28.1 minpoll 4 maxpoll 4 prefer
| fudge 127.127.28.1 refid PPS		# was GPS1

Why did you fudge the .0 device to stratum 3?

Have you observed your ntpd's performance without the CHU refclock?

-- 
Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/




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