>>Since you have a GPS receiver, three internet servers should be
>>sufficient as backup and a sanity check for the GPS.
>See below, now set up as recommended with three us.pool.ntp.org
>servers but as you say it will take some time to be useful, but I
>don't seem to be getting the NEMA data as of 1415Z 28-dec-2008.
>
># ntpq -p
> remote refid st t when poll reach delay offset
>jitter
>==============================================================================
> GPS_NMEA(0) .GPS. 0 l 273 16 0 0.000 -664.93
>0.002
>xSHM(0) .PPS. 0 l 7 16 227 0.000 -634.51
>349.893
> eagle-local 192.168.1.7 4 u 11 64 37 0.120 -11.083
>0.523
> apollo-local 192.168.1.7 3 u 18 64 37 0.224 6.685
>0.765
>x64.247.17.251 129.6.15.28 2 u 12 64 37 34.158 -18.850
>6.764
>+ip-72-167-54-20 204.123.2.72 2 u 13 64 37 82.722 1.031
>1.821
>*caspak.cerias.p .GPS. 1 u 10 64 37 22.867 7.745
>10.934
>
OK here is about 21 hours later 11Z 29 Dec-2008:
# ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
xGPS_NMEA(0) .GPS. 0 l 2 16 375 0.000 -722.08
9.115
xSHM(0) .PPS. 0 l 6 16 377 0.000 -722.20
7.892
eagle-local 192.168.1.7 4 u 390 1024 377 0.181 -5.629
4.389
apollo-local 192.168.1.7 4 u 410 1024 377 0.311 -2.394
0.299
*got.my.mojo.net 192.5.41.41 2 u 966 1024 377 30.157 -5.166
0.361
+kiri.nonexiste. 64.202.112.75 2 u 644 1024 377 9.423 -5.517
203.143
+host2.kingrst.c 99.150.184.201 2 u 944 1024 377 16.221 -11.608
16.695
still seing both of the local GPS/PPS entries as false tickers but I
also see the offsets are huge compared to other clocks...where do I go
from here to correct this??
ntp.conf is below:
# LinuxPPS: GPS
server 127.127.20.0 minpoll 4
fudge 127.127.20.0 flag3 1 flag2 0
# SHM: PPS filtered mean
server 127.127.28.0 minpoll 4
fudge 127.127.28.0 refid PPS flag3 1
server eagle.netwrx1.com iburst
server apollo.netwrx1.com iburst
server 0.us.pool.ntp.org iburst
server 1.us.pool.ntp.org iburst
server 2.us.pool.ntp.org iburst
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