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extended total access communications system (ETACS)

The Extended Total Access Communications System (ETACS) is an analog mobile radio system and belongs to the 1st generation

(1G) mobile radio systems. It was developed by Motorola and used in Europe and Asia. ETACS is an extension of

Total Access Communications System (TACS) in which additional radio channels are allocated. ETACS operates in the 900 MHz band with frequency modulation and supports up to 1,000 radio channels with a bandwidth of 25 kHz. ETACS uses Frequency Division Multiple Access (FDMA) as the access method. Communication is bidirectional with Frequency Division Duplex (FDD) via dowlinks and uplinks.

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Englisch: extended total access communications system - ETACS
Updated at: 04.05.2011
#Words: 64
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Translations: DE