[time-nuts] Expected behaviour from net4501, oncore and ntpns?
Toby Riddell
toby.riddell at prevtec.com
Fri Jan 11 22:12:46 UTC 2019
Hi all,
I got my Soekris net4501 hooked up to an oncore module and antenna and
ntpns has been talking nicely to the oncore. After a couple of hours it
started to serve NTP to a client however the time shown for the net4501 on
the NTP client is approx. 600s slow (see last line):
$ ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
*reverb.baxterit 213.251.128.249 2 u 78 256 377 17.859 0.575
2.196
+k8s-w01.tblflp. 152.2.133.53 2 u 12 256 377 17.992 2.945
1.153
+ip225.ip-54-39- 213.251.128.249 2 u 260 256 377 18.229 -0.193
1.611
x192.168.1.44 .GPS. 1 u 18 256 377 0.830 -619315
0.484
Also the time of day displayed in 'show oncore 0' is correct, but the year
is wrong (I've obfuscated the position data in the output, but it's
essentially correct):
show oncore 0
serial port = /dev/cuau1
state = 12 visible/track/lock = 13/2/0 dop = 0.0 [m]
1999-05-28 22:02:02.000016953
Leap second info: 2017-01-01 00:00:00 NONE
555299878 seconds (6427 days) from now
lat = xxxxxxxxxxx (xx.xxxxxxxxx), lon = xxxxxxxxxxx (xx.xxxxxxx), ht xxxx
(xx.xx)
http://maps.google.com/maps?ll=xx.xxxxxxx,xx.xxxxxxx&spn=0.03,0.08&t=k
rcv_status = 0x8 = AcqSat/PosHold
utc_offset = 18
site_survey = 2 (~3073 sec left)
Sat Dopler Elev Azi Health Mode SigStr IODE Status Offset
8 3828 12 180 00 8 41 0 a2 0.134221487
23 969 62 279 00 3 0 0 20 0.385877161
26 -2039 55 52 00 3 0 0 20 0.436211366
27 3287 32 157 00 8 46 0 a2 0.452988591
Output from 'show source' and 'show oncore 0 version' is:
show source
Source oncore_0: votes 3.000000 flags <UTC> los 0/15 update 1 SELECTED
limit 1.280000e-01 No leapsecond at end of today
stratum 0 refid [GPS]
delay 0.000000000 dispersion 0.000000512
last_ts 927928914.000000102 last_delta 0.000000103
show oncore 0 version
@@Cj
COPYRIGHT 1991-1997 MOTOROLA INC.
SFTW P/N # 98-P36848P
SOFTWARE VER # 3
SOFTWARE REV # 1
SOFTWARE DATE May 28 1999
MODEL # R5122U1154
HWDR P/N # 5
SERIAL # R0ANKH
MANUFACTUR DATE 0M19
I see that the site_survey is still happening - will things correct
themselves if I leave it long enough?
Toby
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