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From: dave@rocksvax.UUCP
Newsgroups: net.ham-radio
Subject: Re: ACSB Transmissions
Message-ID: <2300001@rocksvax.UUCP>
Date: Mon, 25-Feb-85 14:46:00 EST
Article-I.D.: rocksvax.2300001
Posted: Mon Feb 25 14:46:00 1985
Date-Received: Fri, 1-Mar-85 06:25:59 EST
References: <625@dec-mred.UUCP>
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Nf-ID: #R:dec-mred:-62500:rocksvax:2300001:000:1163
Nf-From: rocksvax!dave    Feb 25 14:46:00 1985


In ACSB a few percent of the channel power is dedicated to sending a pilot
carrier that is related to the actual carrier in some fashion out of the normal
"audio" band.  The receiver phase locks to this pilot tone and adjusts the
BFO of the receiver to the exact frequency, eliminating the normal
"Donald Duck" effect of SSB mis-tuning.

From what my roommate who owns a two-way shop says, the stuff is great in
strong signal areas, but when you get into the fringes the signal deteriorates
very rapidly, especially in fluttery conditions prevail.

My partner in my new company was the marketing VP for Sideband Technology
who perfected the technology told me of the gawking that the Motorola
folks did at the trade show they demonstrated their radio at, seems that
they where playing Barbara Striesdan(sp?) through their box and it
didn't sound half bad.

Motorola is like the IBM of the radio industry, whatever they invent is
"real".  No one belieese anything can be done 'til they commercialize it.
Kinda like the recent IBM development of 'full-duplex' terminals.

Dave N2GH

arpa: Sewhuk.HENR@Xerox.ARPA
uucp: {allegra,rochester,amd,sunybcs}!rocksvax!dave