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Which of the following channel is similar in functionality to the SAT used in AMPS?

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in Wireless/Mobile by (138k points)
Which of the following channel is similar in functionality to the SAT used in AMPS?

(a) DTC

(b) CDVCC

(c) SACCH

(d) FACCH

The question was asked during an interview.

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

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Right answer is (b) CDVCC

Explanation: CDVCC (Code Digital Verification Color Code) is a 12 bit message sent in every time slot and is similar in functionality to the SAT used in AMPS. The CDVCC is an 8 bit number ranging between 1 and 255, which is protected with four additional channel coding bits from a shortened Hamming code.

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