[ntp:questions] Suggested gps devices for use as a time source for ntpd

Kurt Häusler tenesu at relsueah.NO.oc.SPAM.zn
Thu Jul 26 08:06:01 UTC 2007

I have been running ntpd for ages now as a timekeeper for my network, its
pretty accurate but I download a lot and saturate my dsl line which I
believe causes the time to be less accurate than when the line is idle.

So I have always wanted to get a gps unit to keep good time independent of
my internet usage. I have just bought a car and want to get a gps
navigation unit for it for when I go on long trips and thought I may as
well kill two birds with one stone and get a navigation system that I can
use as a ntp time source as well.

I was looking for recommendations and found a few old lists of dedicated
gps time sources and was wondering what is available now.

Now most of the nav units have usb connectors so I assume that's so they
can be used for this purpose. I gather I also have to look for ones that
support NMEA or PPS output is this still correct?

I would prefer not to have to modify my (ubuntu linux) kernel but
installing a module is acceptable.

Any suggestions for gps nav units that support ntp on linux?


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