David:
Thanks for the tip on (noselect). I narrowed down the correct offset
of my GPS 18x LVC to (time2 0.880). I'm now +/- 0.04 of 0.00 on average
and things are looking good:
Chart of offset data: http://tinyurl.com/offset-chart
root@godzilla:/var/log/ntpstats# ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
+ntp2.Rescomp.Be 128.32.206.55 2 u 525 1024 377 90.890 -31.719
32.421
+morose.quex.org 128.118.25.5 2 u 463 1024 377 42.331 -24.775
25.105
+64.73.32.134 198.123.30.132 2 u 711 1024 377 44.054 -27.903
33.702
+unlawful.id.au 131.107.13.100 2 u 575 1024 377 81.473 -30.945
31.809
*GPS_NMEA(0) .GPS. 0 l 7 16 377 0.000 -6.469
15.328
root@godzilla:/var/log/ntpstats#
On Tue, March 8, 2011 2:16 am, David J Taylor wrote:
>> I have been able to get my Garmin GPS "18x" LVC working, but only if
>> no other NTP servers are listed in the ntp.conf file. If I even think of
>> sticking 1 server in their, the GPS_NMEA will show up as a falsetick. I
>> assume this isn't normal. Any suggestions on a possible resolution?
>
> For reasons which others have mentioned, with the GPS 18x LVC and recent
> firmware, I have resorted to using just the PPS signal, and using internet
> (and other) sources to set the PC to the nearest second. For the
> Windows
> port of NTP, the configuration lines were similar to:
>
> __________________________
> # PPS serial port driver - uses serialpps.sys
> server 127.127.22.1 minpoll 4 # PPS using serialpps.sys
>
> # NMEA serial port driver
> server 127.127.20.1 minpoll 4 mode 33 noselect # 19200bps, NMEA serial
> port
>
> server 0.uk.pool.ntp.org minpoll 10 server
> 1.uk.pool.ntp.org minpoll 10
> server 0.nl.pool.ntp.org minpoll 10 __________________________
>
>
>
> Cheers,
> David
> --
> SatSignal software - quality software written to your requirements
> Web: http://www.satsignal.eu
> Email: [email protected]
>
>
> _______________________________________________
> pool mailing list [email protected] http://lists.ntp.org/listinfo/pool
>
>
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