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25-09-2021 Cognitive Radio

Q. What is the parameter which differentiates LORAN – B from LORAN – A?

A. Method of extraction of timing
B. Number of receivers
C. Number of transmitters
D. Determination of station location

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Dapzoi Verified
Commented on 2021-09-25 14:17:26 (IST)
Answer: A

Explanation: LORAN – B employed phase comparison variation and hence used a different method of timing extraction compared to LORAN A. The disadvantage of LORAN B is that its pulse length was about 40 microseconds and the technique exhibited phase distortion.