Problem migrating from legacy to ntpsec

Hal Murray halmurray at sonic.net
Sat Sep 14 19:05:30 UTC 2024


Jim Pennino said:
>    ntpq now reports:
>    xNMEA(0)     .GPS.    0 l    9   16  377   0.0000    -96.4123   0.5949
>    xPPS(0)      .PPS.    0 l    8   16  377   0.0000    0.4051   0.0235 

>    Adjusting time1 appears to do nothing.

Adjusting time2 on the NMEA line should reduce that -96 in the offset 
column.
Note time2 vs time1.

The PPS stuff won't kick in until the x on the NMEA line turns into a *.  
You need to get the offset small enough and/or add something like:
  tos mindist 0.075 # default is 0.001 (1 ms)


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