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USDC forward and reverse control channels use exactly the same signalling techniques as AMPS.

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USDC forward and reverse control channels use exactly the same signalling techniques as AMPS.

(a) True

(b) False

I have been asked this question during an online exam.

The question is from United States Digital Cellular (IS-54 and IS-136) in chapter Wireless Systems and Standards of Wireless/Mobile

1 Answer

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Best answer
Right choice is (a) True

Explanation: To maintain compatibility with AMPS phones, USDC forward and reverse control channels use exactly the same signalling techniques as AMPS. USDC voice channels use 4-ary π/4 DQPSK modulation with a channel rate of 48.6 kbps.

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