On 2014-10-11 00:49, Hal Murray wrote:
gign...@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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