Re: [gpsd-dev] A detail in your ntpoffset script

[Beat Bolli]

On 23.10.13 01:22, Eric S. Raymond wrote:
> Beat Bolli <address@hidden>:
>> This is correct, but I was assuming that the PPS doesn't have to be
>> fudged, because it is directly connected to the kernel PPS via an
>> interrupt. I have a fudge offset only on the GPS unit, and none on the
>> PPS. This seems to make sense to me, because only the NMEA stuff is
>> delayed by the RS232 transmission.
> 
> Ahh. OK, I think I get it. So step 5 should read like this, then?
> 
> 5. Adjust the "time1" value for unit 0 of your ntp.conf (the non-PPS
>    channel) by subtracting the average offset from step 4.

That's right.

Of course, if one wanted to fudge the PPS too, a similar procedure would
have to be done for unit 1 (one more requirement for ntptune!)

Beat
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