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Satellite Systems Uplinks Transponders
When Will lt Happen?
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Alaska antenna gain Appalachia ATS-F satellite beam cable systems cable television capable cations satellites channels classroom Communications satel Communications Satellite Corporation cost curriculum devices directional antenna downlink earth stations earth terminals earth's surface EDSAT Center educa education's educational experiments educational satellite Educational Technology EDUSAT Effective Radiated Power eirp existing terrestrial free flow freeloading geostationary orbit ground interconnection Isotropic Radiated learning lites lndia lnstructional lntelsat system lnternational located materials ments microwave relay mitter munications satellites N.W. Washington NASA National Education Association nology Office of Education possible problems Radiated Power radio received reflector regional relay stations retransmit role satellite communica satellite communications satellite for education satellite space satellite system satellite transmissions signal space communications spillover synchronous orbit Syncom tech tele Telecommunications telephone television programs television trans tion tional transmitted transponders two-way U.S. Office UNESCO United uplink users