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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxj!houxm!vax135!cornell!uw-beaver!ssc-vax!eder
From: eder@ssc-vax.UUCP (Dani Eder)
Newsgroups: net.news
Subject: Re: Stargate Transmissions
Message-ID: <303@ssc-vax.UUCP>
Date: Thu, 3-Jan-85 16:47:39 EST
Article-I.D.: ssc-vax.303
Posted: Thu Jan  3 16:47:39 1985
Date-Received: Fri, 4-Jan-85 08:00:26 EST
References: <312@utcs.UUCP>
Organization: Boeing Aerospace Co., Seattle, WA
Lines: 33

> I do not know if Lauren knows this but WTBS is owned and operated by
> Turner Broadcasting, which last I heard of was also operating CNN.
> WTBS is not distributed in Canada very widely, however CNN-1 is.  Therefore
> would there be any possibility that the Stargate signal could be 
> piggybacked onto the CNN-1 signal instead of WTBS????
> 
     Here's some information on the channels and transmissions being
discussed.  My data is from the 1984  'Satellite Directory', Phillips
Publishing, Bethesda,Md.  Make of it what you will.

     Turner Broadcasting System, Inc. offers Superstation WTBS on
transponder 6, Satcom IIIR.  CNN is on transponder 14 of the same
satellite, CNN Headline News on transponder 15.  Transponder 14 also
piggybacks the CNN Radio Network.

     Satcom IIIR is owned by RCA Americom.  It was launched in
November 1981, and is located over the equator at 131 degrees West
longitude.  It operates in the C band (transmits at 3.7-4.2 GHz).
The transponders have an actual power of 5.5 watts, except for
numbers 3,7,11,15,19, and 23 which are 8.5 watts.  The beam pattern
is centered on Denver.  Over a region enclosed by Los Angeles, Houston,
Atlanta and Chicago the effective power of the 5.5 W transponders is
more than 2500 watts.  Over the continental US excepting Texas S of
27 degrees N, Florida panhandle, New England and Eastern New York,
the effective power exceeds 2000 watts.  In those excluded regions
the effective power exceeds 1600 watts.  For Anchorage the effective
power is 630 watts.  For Honolulu it is 355 watts.  

     For those unfamiliar with effective power for radio, it is the
power a transmitter which emits uniformly in all directions would have
to match the percieved power of a low-power, focussed beam.

Dani Eder/Boeing Aerospace Company/uw-beaver!ssc-vax!eder/(206)773-4545