Hal Murray wrote: A long time ago I wrote: >>Last Saturday (2008-08-02) I noticed for the first time that the time off >>the GPS unit was one second behind the DCF time, which I monitor on a >>separate radio clock. A reboot of the system did not help. On Sunday >>(2008-08-03) everything was back to normal. I noticed the same effect >>again on Friday evening (2008-08-08) and through yesterday (2008-08-09), >>but everything seems fine today (2008-08-10). > > [big snip] > >>My question is, has anyone else observed this and how can I fix this? > > I've seen similar quirks from GPS units using the SiRF chip set. > http://www.megapathdsl.net/~hmurray/ntp/leap-gps3.gif > > It started about the time the leap second was announced. (Otherwise, > they work, but not very well. They have a 100 ms jitter/drift.) > > It looks like a weekly pattern. It will be interesting to see what > happens during the next week.
Yes, that fits my observations well, including the weekly pattern...so far. I suppose you don't know of any workaround for ntp purposes? Cheers Harald _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
