[ntp:questions] help - clock jumps up to 5000 ms startup ntpd with usb gps linux
nomail at example.com
Sun Feb 19 10:53:19 UTC 2012
Ron Frazier (NTP) <timekeepingntplist at c3energy.com> wrote:
> *GPS_NMEA(5) .GPS1. 0 l 4 8 37 0.000 563.733
Don't try to use NMEA for timesyncing! It will only drive you crazy.
The timestamp in NMEA is a "time of last fix", not the current time.
Some people are lucky and seem to be able to get a usable result, but
they really are working outside the specs and can get bitten at any
firmware change (as was recently seen with some Garmin firmware).
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