[ntp:questions] Isolated Network Drift Problem

Steve Kostecke kostecke at ntp.org
Wed Nov 26 03:40:16 UTC 2008


On 2008-11-26, Harlan Stenn <stenn at ntp.org> wrote:
>> "Richard B. Gilbert" <rgilbert88 at comcast.net> writes:
>
>> The most important thing to do or attempt is to get a primary
>> source of time.  This can be an atomic clock (extremely expensive,
>> extremely stable, extremely accurate), or something directly
>> connected to an atomic clock.  ...
>
>> I can tell you from experience that a GPS receiver will give you
>> rock solid time and that clients will synchronize easily with it.
>> So will an atomic clock but that costs $50,000 or $100,000 more
>> than the GPS receiver!
>
> http://www.thinksrs.com/products/PRS10.htm could get you pretty close for
> not too much money, though.

You can purchase complete rubidium PPS sources for much less than the
cost of the PRS10.

-- 
Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/




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