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25-09-2021 Cognitive Radio

Q. Very High Frequency Omnidirectional Range begins with transmission of frequency modulated signal.

A. True
B. False


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Dapzoi Verified
Commented on 2021-09-25 14:19:25 (IST)
Answer: B

Explanation: Very High Frequency Omnidirectional Range begins with transmission of amplitude modulated signal with a constant frequency. The transmitted signal passes through a set of antenna in a circle introducing frequency modulated Doppler onto the received signal. The relative phase angle between amplitude modulated signal and frequency modulated signal is employed to find the location of the source.