"Alby VA" <alb...@empire.org> wrote in message news:7824f31d-b72c-44eb-9eeb-b219a7543...@gr6g2000vbb.googlegroups.com...
[]
ntp2.usno.navy. .USNO.           1 u  11h  128    0   21.392
11.022   0.000
-ntp0.usno.navy. .USNO.           1 u  512  128  370   25.747
-0.242   3.378
+ntp1.usno.navy. .USNO.           1 u   51  128  377   30.361
-1.445   2.473
-time-a.nist.gov .ACTS.           1 u  136  128  336   19.894
0.582   5.715
+time-b.nist.gov .ACTS.           1 u   64  128   57   19.100
-0.948   2.129
oPPS(0)          .PPS.            0 l   13   16  377    0.000
0.502   0.153
*GPS_NMEA(0)     .GPSb.           0 l   12   16  377    0.000
-38.705  13.177

As Chris commented, you should maybe be using a single driver - here's mine for a GPS 18 LVC (which should be similar apart from the baud rate):

==============
oGPS_NMEA(1) .PPS. 0 l 16 16 377 0.000 0.004 0.002 +feenix .PPS. 1 u 29 32 377 0.267 -0.027 0.029 +stamsund .PPS. 1 u 13 32 377 0.246 -0.028 0.035 -time.hilo.net 130.88.212.143 3 u 67 1024 377 21.717 2.509 1.349 -server0.terrybu 140.203.204.77 2 u 1023 1024 377 23.783 3.814 4.331 +xinnaeus.bin.ed 129.215.64.32 2 u 677 1024 377 30.284 1.405 0.739

and the configuration:

driftfile /var/db/ntp.drift
#
server  127.127.20.1    mode 0  minpoll 4 maxpoll 4  prefer
fudge   127.127.20.1    flag1 1 flag3 1 refid PPS
#
server 0.uk.pool.ntp.org iburst minpoll 10 maxpoll 10
server 1.uk.pool.ntp.org iburst minpoll 10 maxpoll 10
server 2.uk.pool.ntp.org iburst minpoll 10 maxpoll 10
#
leapfile /root/ntp/leap-seconds.3535142400

(which has "just grown", so may not reflect current best practice).

Cheers,
David
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