[LinuxPPS] NTP not using PPS
susmi sarah george
sarah_13 at rediffmail.com
Thu Oct 25 18:55:02 CEST 2007
hi....
so with these outputs can I confirm that PPS is used by NMEA
On Thu, 25 Oct 2007 Udo van den Heuvel wrote :
>susmi sarah george wrote:
> > i got following outputs, some info are coming related to PPS in log
> > messages. i dont know whether my ntpd is taking PPS or not. so please
> > conform it.
> >
> >
> > [root at localhost log]# ntpq -p
> > remote refid st t when poll reach delay offset jitter
> > ==============================================================================
> > *GPS_NMEA(0) .GPS. 0 l 8 16 377 0.000 -0.465 0.202
> > LOCAL(0) .LOCL. 10 l 14 64 377 0.000 0.000 0.004
>
>Your GPS is preferred (see the *).
>It is max reachable (377).
>offset and jitter can improve over time.
>Looks good!
>
> > So, please tell me what to do next.if its ok how to check accuracy?
>
>Let it run for a while.
>You can make statistics and plot graphs.
>Maybe use mrtg or gnuplot, etc.
>Depending on what you want others can explain better than I.
>
>
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