[ntp:questions] how to have offset < 1ms

lhommedumatch ludocluba at yahoo.com
Wed Apr 14 23:35:37 UTC 2010

On 14 avr, 01:42, John Hasler <jhas... at newsguy.com> wrote:
> Richard B. Gilbert writes:
> > With a closed network the options are limited.  With a place to site a
> > GPS antenna, you can install a GPS clock that will be accurate to
> > within +/- 50 nanoseconds.
> It occurs to me that the sort of fancy GPS that an oceanographic ship is
> sure to have on the bridge may already be capable of providing time
> service.
> --
> John Hasler
> jhas... at newsguy.com
> Dancing Horse Hill
> Elmwood, WI USA

I think that the reason why we use an external clock is to avoid loose
of signal GPS.
Apparently (discussion with crew) it happens and it depends of the
weather, the position, the vessel and some unknown reasons.

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