[ntp:questions] Accuracy of GPS satellite signal ?
richard.eich at domain.invalid
Fri Jan 26 20:43:18 UTC 2007
david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk wrote...
> Richard Eich wrote:
> > If I were to set up five or six global locations, each time-
> > synchronized to a local GPS receiver, how much variability would I
> > expect there to be between the time as indicated by the GPS
> > satellites used by each local GPS receiver.
> > I'm happy to click on a link and do my own reading. Just haven't
> > been able to find the right link yet (still looking, though).
> > Thx
> I'm sure there will be more complete answer, but I would have thought that
> tens of microseconds was the order you would see from a PPS-synced NTP
> server. This is based on my own very simple and very old [PC] setup. You
> should be able to do better than this:
> GPS alone would be microseconds, if not better.
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