[ntp:questions] NTP server with Garmin GPS 18 LVC

David Lord snews at lordynet.org
Thu Dec 19 11:43:20 UTC 2013

Adrian P wrote:


> Everywhere is written that FreeBSD is the best OS for time keeper,
> since its kernel supports nanosecond accuracies. However, if GPS 18x
> LVC PPS signal has only microsecond accuracy, then I suppose there is
> no point on using FreeBSD, any linux would be okay as well. So what do
> you think, looking from NTP point of view only, is this nanosecond
> accuracy the only reason why someone would use FreeBSD, or there are
> some other reasons as well? I see you have experience with all kind of
> OSes.

I think the combination of hardware used is at least as important
as the OS.

<http://www.febo.com/pages/soekris/> 100ns accuracy

<http://www.synclab.org/radclock/> An alternative to ntpd


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