Re: [ntp:questions] GPS NMEA offset with PPS

2011-12-30 Thread Tomi Lehto
Nickolay Orekhov nowh...@mail.ru wrote: 1. If you mark clocks as true you somehow fool yourself :-). Because now if the clocks are real falsetickers you won't even know about it and your system will be out of sync and for ex. will show low offset from some falseticker maybe. Yes, reading

[ntp:questions] GPS NMEA offset with PPS

2011-12-29 Thread Tomi Lehto
Hello, I have ntpd set up with two time sources, GPS_NMEA and a PPS pulse, and I have a couple of perhaps basic questions. NMEA sentences are not read directly from a physical serial port but a virtual /dev/gps0 that is fed by a separate process. PPS pulse comes from the gps module and is

Re: [ntp:questions] GPS NMEA offset with PPS

2011-12-29 Thread Tomi Lehto
Hi, Nickolay Orekhov nowh...@mail.ru wrote: 2011/12/29 Nickolay Orekhov nowh...@mail.ru Yes, you are right. Your system is synced with PPS and gets seconds from NMEA. You can set time1 to make NMEA offset closer to reality ( and to PPS ). Having NMEA offset close to zero, or leaving it at