____ shift keying represents 0s and 1s by different changes in the phase of a waveform.
A) Amplitude
B) Phase
C) Frequency
D) Noise

Question

Quizplus · Accepted Answer

Phase shift keying (PSK) represents 0s and 1s by changing the phase of a waveform, while keeping the amplitude and frequency constant. Amplitude shift keying (ASK) represents 0s and 1s by changing the amplitude of a waveform, while frequency shift keying (FSK) represents 0s and 1s by changing the frequency of a waveform. Noise is not a type of keying.

____ Shift Keying Represents 0s and 1s by Different Changes