[ntp:questions] Re: Garmin GPS 18 firmware update -> 200ms offset

David Schwartz davids at webmaster.com
Tue Nov 29 19:34:46 UTC 2005

"Patrick Klos" <pklos at osmium.mv.net> wrote in message 
news:dmi2vh$pa3$1 at pyrite.mv.net...

> I'm sure you can't rely on the NMEA strings coming out with any specific
> relationship to the pulse.  We've seen Garmin GPS's get very busy inside
> and skew the NMEA strings all over the place, including after the NEXT 
> PPS.

    Ack! I do not recommend using a GPS for a timing application unless the 
relationship between the NMEA time strings and the actual UTC second 
boundary is specified by the manufacturer.


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