"unruh" <[email protected]> wrote in message
news:[email protected]...
On 2012-02-19, Rob <[email protected]> wrote:
Ron Frazier (NTP) <[email protected]> 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.
No. It is fine.
NMEA alone may be little better than Internet servers, it may be worse.
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).
Yes, you may have to recalibrate the offset after a firmware change. So?
The Garmin issue was more than a simple "recalibration required", but the
released a fix. "So" might be: "so use PPS as well as NMEA, both to
improve performance dramatically and reduce or remove the need for
recalibration.".
Cheers,
David
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