Voice channel beeps.

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Article #433

#433

From: Bill Bencze
Date: Fri, 21 Jul 1989 17:10

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This is a question that always has been bugging me and I have never
been given a good answer:

What function do the ever present "beeps" serve in the voice
communication between spacecraft and the ground? These are the 
1~3 kHz beeps of about a half second in duration which seem to
occur at random duning the transmissions.  Are they electronic
"Over" signals automatically sent at the end of a transmission or
some other type of timing signal.

Please satisfy my curiosity!!!


Bill Bencze.
National Semiconductor Corp.

bill@bach.nsc.com.

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!ucbvax!decwrl!nsc!voder!berlioz!bill
From: bill@berlioz (Bill Bencze)
Newsgroups: sci.space
Subject: Voice channel beeps.
Message-ID: <474@bach.nsc.com>
Date: 21 Jul 89 17:10:25 GMT
Distribution: usa
Organization: National Semiconductor, Santa Clara
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