refclock 28 gone wacky on me

Mike bellyacres at gmail.com
Thu Jun 9 22:21:32 UTC 2016


On 06/09/2016 05:47 PM, Gary E. Miller wrote:
> Yo Mike!
>
> On Thu, 9 Jun 2016 17:21:16 -0400
> Mike <bellyacres at gmail.com> wrote:
>
>> The output from ntpq -p that is relevant here.
>>
>> xSHM(1)          .PPS.            0 l    8   16  377    0.000 -1001.1 0.009
>> -SHM(0)          .GPS.            0 l    7   16  377    0.000 -363.77 9.805
> That is not wacky, that is off by exactly one second. gpsd is not
> getting the right sentence for the PPS.  What is the speed on your NMEA?
> I suggest 38400 or higher.  9600 or less would cause this exact symptom.
>
> And your NMEA fudge is way off.
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
Forgot this in the original post...

ntpshmmon version 1
#      Name   Seen@                Clock Real               L Prec
sample NTP0 1465510764.647583630 1465510764.464160236 
1465510763.938999891 0  -1
sample NTP1 1465510765.004051736 1465510765.003485754 
1465510764.000000000 0 -20
sample NTP0 1465510765.147894340 1465510765.120560175 
1465510764.938999891 0  -1
sample NTP0 1465510765.648664035 1465510765.468806532 
1465510764.938999891 0  -1
sample NTP1 1465510766.004524158 1465510766.003486190 
1465510765.000000000 0 -20
sample NTP0 1465510766.149659722 1465510766.117558703 
1465510765.938999891 0  -1
sample NTP0 1465510766.650198423 1465510766.465998053 
1465510765.938999891 0  -1
sample NTP1 1465510767.003765616 1465510767.003486625 
1465510766.000000000 0 -20

Is seeing NTP0 twice like this typical?  I can't ever recall seeing it 
that way.

Mike


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