[LinuxPPS] NTP not using PPS

susmi sarah george sarah_13 at rediffmail.com
Thu Oct 25 19:00:44 CEST 2007


  


On Thu, 25 Oct 2007 susmi sarah george wrote :

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.

lola.


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