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  2. Harold Rosen (electrical engineer) - Wikipedia

    en.wikipedia.org/wiki/Harold_Rosen_(electrical...

    Dr. Harold Allen Rosen (20 March 1926 – 30 January 2017 [1]) was an American electrical engineer, known as "the father of the geostationary satellite", and "father of the communications satellite". [2] He formed and led the team that designed and built the first geosynchronous communications satellite, Syncom, for Hughes Aircraft Company.

  3. Raymond J. Leopold - Wikipedia

    en.wikipedia.org/wiki/Raymond_J._Leopold

    Leopold joined Motorola in 1987 after having spent a career in the U.S. Air Force where he held a variety of technical and technical management positions. He directed the development of communications systems at the Electronics Systems Division in Massachusetts.

  4. Communications satellite - Wikipedia

    en.wikipedia.org/wiki/Communications_satellite

    A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...

  5. List of communication satellite companies - Wikipedia

    en.wikipedia.org/wiki/List_of_communication...

    The World Teleport Association publishes lists of companies based on revenues from all customized communications sources and includes operators of teleports and satellite fleets. In order from largest to smallest, the Global Top 20 of 2021 were: [1] [2] SES (Luxembourg) Intelsat S.A. (Luxembourg) EchoStar Satellite Services (USA) Hughes Network ...

  6. Iridium Communications - Wikipedia

    en.wikipedia.org/wiki/Iridium_Communications

    Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation , a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. [ 2 ]

  7. Satellite - Wikipedia

    en.wikipedia.org/wiki/Satellite

    A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...