[ntp:questions] Tiime Sync solution
brad at stop.mail-abuse.org
Tue May 31 21:56:05 UTC 2005
At 8:11 PM +0000 2005-05-31, Bjorn Gabrielsson wrote:
> Cannot remember reading about a GPS receiver with 1PPS output
> specified worse than 1us. Get a reciever with a 1PPS, and you are home
There's a lot more to it than just PPS. El-cheapo $80 GPS
receivers can do remarkably well, but there's a reason why Meinberg
can make a profit selling units for much more.
>> With lots of hard work, and some luck in finding used Rubidium
>> clocks at reasonable prices, Poul-Henning Kamp was able to put
>> together some devices that achieved sub-millisecond accuracy. But
>> that's a lot of hard work.
> I would say phk did sub-microsecond.
I'd have to check his papers and maybe talk to him. I was
thinking that he had done sub-microsecond resolution, but then I was
also thinking that the time offsets output by ntpq are in
Brad Knowles, <brad at stop.mail-abuse.org>
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