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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ground-to-Air Transmitter Facility ： ウィキペディア英語版 Ground-to-Air Transmitter Facility A Ground-to-Air Transmitter Facility (GAT Facility) was a USAF radio uplink station located near CIM-10 Bomarc bases (e.g., Suffolk County Missile Annex on Long Island) for Cold War command guidance of the Interceptor Missiles. The unmanned military installations with a transmitter building and 2 antenna towers converted the digital "midcourse guidance commands" (after the launch/climb and before the homing dive) received from an AN/FSQ-7 Combat Direction Central into the transmitter building's Digital Data Receivers processing 28 channels of uplink data. Processing by the AN/GKA-4A's demultiplexer group prepared the SAGE data for amplitude modulation on separate frequencies for each missile (FDDL: frequency division data link), e.g., 3 missiles were simultaneously controlled in a 1960 test. An AN/GRT-3 transmitter provided the modulated signals to a UHF Klystron high power amplifier--dual chains of components provided redundancy, including 2 exterior GAT Antennas on GAT Towers from which a missile's "command receiver" demodulated the signal. A single local monitoring cabinet allowed review of either chain's function (e.g., during test input to the dummy load), ventilation provided cooling of the building equipment, and "three 150 KVA diesel driven generators housed in the GAT building" provided power. For the advanced Bomarc (IM-99B), a Time Division Data Link was planned for GAT Facilities to provide an electronic counter-countermeasures capability using a "directional hlgh-gain data link antenna…composed of' 16 stationary segments in a circular pattern 60 feet high". ==Notes== Distances of each GAT Facility from the Launch Area were tbd (Patrick), tbd (Hurlburt),〔http://www.radomes.org/museum/documents/HurlburtFieldBOMARCFLGATSite.html〕 1 mile (McGuire), 2⅓ mi (Suffolk), 2¼ mi (Otis), 4½ mi (Dow), 4½ mi (Langley), tbd (Sault St. Marie), tbd (Ottawa). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ground-to-Air Transmitter Facility」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.