[ntp:questions] Re: Effect of Antenna Cable Delay
shoppa at trailing-edge.com
Fri Sep 26 10:35:05 UTC 2003
"David J Taylor" <david-taylor at blueyonder.co.uk> wrote in message news:<4UGcb.326$fE6.2882796 at news-text.cableinet.net>...
> > Given that the 23,000 miles of free-space propagation totally
> > dominates the 100' of cable, I'd say this error source comes down to
> > being << epsilon.
> > I could of course be wrong. Dr Mills will naturally have the final
> .... but the satellite - ground station distance is known precisely, and
> can therefore be compensated for.
It depends on what satellites you are talking about. Obviously you are
talking about GPS birds, but a decade ago GOES satellite clocks were somewhat
common and the situation isn't nearly so automatic there.
(Sometimes I feel like I'm the last guy who has to deal with GOES
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