Re: [gpsd-dev] Heads up, GPSD release 3.12 is imminent

[Hal Murray]

More info... (or lack thereof)

I've lost my touch or something.  I haven't been able to make it fail today.  
It's been running fine for several hours.

Poking around with gpsmon...
I've seen a PPS-offset of -1422231249.00004
(The 4 is overriding the | at the right boundary of box.)
It flips back and forth between normal and crazy like above.  I haven't seen 
a pattern of good/bad.  Just wait a few seconds and I get a bad one.  The 
above is a typical bad one.  I think all the bad ones have started with 
-14xxx and had the decimal point in the same place.

The GPS hardware is a MR-350P going through a TAPR FAT-PPS pulse stretcher 
and then through a splitter.  The FAT-PPS makes a 100 ms pulse.  (The raw PPS 
signal on the MR-350P is only 1 microsecond wide.)

The serial string is offset by roughly 1/2 second.  I wouldn't be surprised 
to see it fall on either side of the middle of the second.  That may be the 
thing that has changed: the timing on the serial strings sweeps over a 100 ms 
range with a time scale of many hours.

It would be nice if the PPS line in the log file included the offset or a 
time stamp.


-- 
These are my opinions.  I hate spam.