[ntp:questions] Acutime Gold
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Thu Aug 15 20:58:47 UTC 2013
Mark C. Stephens wrote:
> remote refid st t when poll reach delay offset jitter
> oPPS(0) .PPS. 0 l 4 16 377 0.000 -0.003 0.005
> *GPS_PALISADE(0) .GPS. 0 l 4 16 377 0.000 0.014 0.002
> For the above wouldn't I need to advance PPS by time1 0.003?
I don't think so.
> And retard the palisade by time1 -0.014?
> Assuming these are the average values.
> Because I tried those values and the PPS got marked bad ticker and the palisade
> was unreachable!
AFAIK, the way most people do it, is to have several refclocks / servers,
and change to noselect, the one you want to check the serial end
of line offset; let it run for a day or two, and take the average.
According to the driver doc,
a serial end of line time1 offset of around 20ms is common.
You might also need to increase the mindist.
You might also want to prefer the PPS.
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