Hello, >>Hello Didier, >> >>The Jupiter GPS receiver (if used in NMEA and not binary mode) has a known >>fault, that it can be 1 or 2 seconds delta to UTC, this is independent of >>the "leap-second" situation. >
I use my Jupiter GPS to synchronize my ntp-server. When I ran it in NMEA-mode, I had to fudge it 1.135 sec. A few days later I had to fudge it 2.135 sec to give a time similar to public ntp-servers. The NTP newsgroup tells me that most consumer grade GPS-devices are meant for navigation; giving an accurate time to the outside world is not of primary importance. Thus I attributed the bad NMEA quality to the unimportance of time to NMEA-engineers. I currently run my Jupiter in binary mode. According to ntpd the offset is generally a few microseconds. I have no independant way to check that claim. Regards, Johan Swenker _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
