Which binary modulation technique is similar to frequency modulation?
A) amplitude shift keying
B) frequency shift keying
C) phase shift keying
D) All of the above

Question

Quizplus · Accepted Answer

Frequency shift keying (FSK) is similar to frequency modulation (FM) in analog communication. In FSK, the binary information is conveyed by shifting the carrier frequency between two predetermined values, which is similar to how FM conveys information by shifting the carrier frequency in response to the modulating signal. Amplitude shift keying (ASK) and phase shift keying (PSK) are not similar to FM, as ASK depends on changing the amplitude of the carrier signal, and PSK depends on changing the phase of the carrier signal.

Which Binary Modulation Technique Is Similar to Frequency Modulation