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Ancillary Terrestrial Component : ウィキペディア英語版 | Ancillary Terrestrial Component Ancillary Terrestrial Component (ATC) is a U.S. Federal Communications Commission-approved〔(Ancillary Terrestrial Component (ATC) )〕 technique for using a "terrestrial" network of cell-phone towers to supplement a Mobile Satellite Service (MSS) provided by orbiting communications satellites. Satellite communications can be degraded by various factors, including attenuation in urban areas due to buildings etc. ATC allows the operators to reuse the same satellite spectrum in a terrestrial network to increase coverage and performance for their customers in highly shadowed regions e.g. within houses. In Europe ATC is known as complementary ground component (CGC). ==Notes==
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「Ancillary Terrestrial Component」の詳細全文を読む
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