[time-nuts] backup to GPS after jan 2010, was: OT - GPS and North
Stanley Reynolds
stanley_reynolds at yahoo.com
Sun Nov 22 22:49:32 UTC 2009
Further if at least one cell site has a accurate clock how far could it be repeated before it lost it's useful accuracy using the CDMA signal as in :
http://www.endruntechnologies.com/frequency-standard-rackmount.htm
As cdma is not available everywhere:
http://www.endruntechnologies.com/gps-cdma2.htm
Would assume if you wanted to distribute accurate timing then if not GPS, CDMA, or VLF then some radio signal hopeful for cell sites some method you are allowed to use. They already have control links between sites so it would be the natural choice to distribute this timing info.
Stanley
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