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- W55490692 abstract "Abstract The immediate application of aeronautical communication satellites is the improvement of communications between commercial aircraft on transoceanic routes and ground stations. For the satellite-aircraft links, 118-136 MHz (VHF) and 1540-1660 MHz (UHF, L-band) are the primary choices from the frequency bands allocated worldwide for this service. The satellite transmitter output power required for a voice communication is approximately 750 watts at UHF or an order of magnitude lower at VHF, if the aircraft antennas use a fixed, single beam for near-hemispherical coverage. UHF transmitter power comparable to that at VHF requires a narrow, multi-position aircraft antenna beam or reduced earth coverage." @default.
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- W55490692 date "1966-01-01" @default.
- W55490692 modified "2023-09-25" @default.
- W55490692 title "Aeronautical Communication Satellites" @default.
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- W55490692 doi "https://doi.org/10.1016/b978-1-4832-2716-0.50045-1" @default.
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