On Fri, Jan 14, 2011 at 08:40:25AM -0000, David J Taylor wrote: > Folks, > > You may recall that I had a problem with a Garmin GPS18x LVC after > firmware upgrades, where the offset between the leading edge of the > PPS signal and the end of the NMEA serial data exceeded one second. > With some help from Hal Murray who knows more of NTP than I do, we > have worked round the problem as described here: > > http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#gps-18x
> - add that offset (as +1.000 seconds) to the fudge time2 value for > the 18x in the ntp.conf Thanks for the information. I was curious about the new position averaging mode, but I'll wait until this is resolved. 1.0s offset is horrible, that will certainly break gpsd or any application that pairs pulses with following NMEA timestamps. Have you tried increasing baud rate to 38400 and disabling all unneeded NMEA sentences? -- Miroslav Lichvar _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
