Public service satellites

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Public service satellites

Fletcher, J. C.

The development of the communications satellite system is discussed, taking into account a suggestion by Clarke in 1945 concerning the significance of geosynchronous satellites, the establishment of Intelsat, reductions in the cost of transatlantic telephone calls as a result of satellite communications service, questions of satellite cost, and the need for larger satellites. It is pointed out that the use of the Space Shuttle will reduce the cost of placing a satellite in orbit from more than half to less than a quarter of the total cost of design, construction, and launch. Attention is given to studies of a personal communications system which involves direct broadcast from a 'wrist watch radio' to a high-capacity, multibeam satellite for retransmission to ground communications centrals.