[time] GPS Time Server Survey
David J Taylor
Sat Apr 26 17:00:26 UTC 2008
Chris Kuethe wrote:
> On Sat, Apr 26, 2008 at 9:28 AM, David J Taylor
> <david-taylor at blueyonder.co.uk> wrote:
>> Hardly surprising, Andy, when it only offers SNTP (according to the
>> page you gave)! For that price, one would expect at least full
>> NTP. Which Garmin chipset? I would want the SiRF III chipset for
>> its high sensitivity.
> I'm no really keen on SS3 for timekeeping. I think SS3 and the garmin
> chips are both specified for 1usec. Shop around and you can find
> yourself a nice little antaris or antaris4 module that'll at least
> give you a few hundred ns at the same price point.
Thanks, Chris. For my systems, one millisecond would probably be
acceptable, and one microsecond is probably at least one order of
magnitude better than I need.
However, the benefit of being able to use a unit in the roof-space or,
perhaps, near a window with a view of less than half the sky, would far
outweigh an accuracy reduction from hundreds of nanoseconds to a
microsecond. There may be others with similar restrictions on outside
Nice looking units, though.
SatSignal software - quality software written to your requirements
Email: davidtaylor at writeme.com
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