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From: telecom@ucbvax.UUCP
Newsgroups: mod.telecom
Subject: Re: EA problems (help!)
Message-ID: <8601150702.AA04807@ucbvax.berkeley.edu>
Date: Tue, 14-Jan-86 11:36:18 EST
Article-I.D.: ucbvax.8601150702.AA04807
Posted: Tue Jan 14 11:36:18 1986
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Not that it matters, but I think it is 22,000 miles to
geosynchronous orbit. The delay is 1/4 second one way, but
the round trip ( which is important in echo situations )
is 1/2 seconds. I have heard that most long distance voice is
done by satellite in one direction and by microwave in the
other, this reduces the echo time to ~1/4 second and makes the
echo less annoying.

Mike