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AMPS and ETACS use ___________ and _____ for radio transmission.

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AMPS and ETACS use ___________ and _____ for radio transmission.

(a) FM, TDD

(b) FM, FDD

(c) AM, TDD

(d) FM, FDD

I have been asked this question by my college director while I was bunking the class.

Question is taken from AMPS and ETACS topic in division Wireless Systems and Standards of Wireless/Mobile

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The correct choice is (b) FM, FDD

The explanation: Like all other first generation, analog, cellular systems, AMPS and ETACS use frequency modulation (FM) and frequency division duplex (FDD) for radio transmission.

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