[time-nuts] GPS jump

Brian Inglis Brian.Inglis at SystematicSw.ab.ca
Sat Oct 11 07:47:06 EDT 2014


On 2014-10-11 00:49, Hal Murray wrote:
>
> gigneil at gmail.com said:
>>   Is it actually possible to phase lock two oscillators together cross the
>> distance from DC to Colorado Springs? (2400 kilometers or so). ?
>
> I think so - if your clocks are stable enough.
>
> There is probably a simple rule for PLL stability based on round-trip-time
> and bandwidth (and other factors).

TWSTFT http://www.usno.navy.mil/USNO/time/twstt and http://tf.nist.gov/time/twoway.htm
where NIST says stability is .1-1ns/day and better than GPS common view at 1-10ns accuracy
http://tf.nist.gov/time/commonviewgps.htm

-- 
Take care. Thanks, Brian Inglis



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