[ntp:questions] Re: Linux PPS triggering with NMEA
David Schwartz
davids at webmaster.com
Mon May 9 23:44:34 UTC 2005
"Bjorn Gabrielsson" <bg at lysator.liu.se> wrote in message
news:m31x8gowh0.fsf at lysator.liu.se...
> "David Schwartz" <davids at webmaster.com> writes:
>> No. But unless you have some specialized hardware, you're just
>> kidding
>> yourself if you think you can get more than that. Even with a PPS input
>> accurate to 200nS and the PPS kernel patches, accuracy is still only
>> about 3
>> microseconds.
> Did you reread http://phk.freebsd.dk/soekris/pps/ lately?
A rubidium frequency standard qualified as "specialized hardware" in my
book.
DS
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