[ntp:questions] Does this look sane, is PPS working?

Steve Kostecke kostecke at ntp.org
Tue Feb 12 18:37:36 UTC 2013


On 2013-02-12, james machado <hvgeekwtrvl at gmail.com> wrote:

> On Tue, Feb 12, 2013 at 6:04 AM, Ralph Aichinger <ralph at pangea.at>
> wrote:
>
>> Does this look sane to you for a Raspberry Pi with a Sure Electronics
>> board and PPS enabled? It looks fine to me, I just want to confirm
>> that people more experienced than me see it the same way.
>>
>>  remote           refid      st t when poll reach  delay   offset  jitter
>> =========================================================================

[snip]

>> oGPS_NMEA(0)     .GPS.       0 l    3   16  377    0.000   -0.005   0.001
>
> I would expect to see a PPS line if you have PPS up and working
> correctly, 

The 'o' tally code at the beginning of the GPS_NMEA line is telling
you that your GPS is the PPS peer. Plus the offset and jitter are
appropriate for a PPS ref-clock.

The tally codes are listed at http://doc.ntp.org/4.2.6p5/decode.html#peer

-- 
Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/



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