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Path: utzoo!linus!decvax!bellcore!petrus!karn
From: karn@petrus.UUCP (Phil R. Karn)
Newsgroups: net.analog
Subject: Re: Television over the telephone?  Is it possible?
Message-ID: <743@petrus.UUCP>
Date: Mon, 9-Dec-85 02:08:38 EST
Article-I.D.: petrus.743
Posted: Mon Dec  9 02:08:38 1985
Date-Received: Wed, 11-Dec-85 20:48:06 EST
References: <1148@gitpyr.UUCP> <382@unccvax.unccvax.UUCP>
Organization: Bell Communications Research, Inc
Lines: 17

> > Does anyone out there know if it is possible to transmit a [standard,
> > full-motion color]
> > television signal over a standard telephone line?  It seems to

Way back in high school, my guidance counselor (who was also the sponsor of
the amateur radio club) bet me a six pack that within 6 years this would be
possible. I tried to quote Shannon, but he wouldn't have any part of it.

Six years later I collected, and he gladly renewed the bet for another six
years. It's about time for me to collect again.

By the way, the Shannon limit on a typical analog voice line is roughly 30
kilobit/s. Of course, if the channel is being digitized and sent at 56 or 64
kilobit/s, than that also sets an ultimate limit assuming all other noise
sources could be removed.

Phil