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Communication Systems - Engineering

Q1:

PAM stands for

A Phase Angle Modulation

B Phase Amplitude Modulation

C Pulse Amplitude Modulation

D Pulse Angle Modulation

ANS:C - Pulse Amplitude Modulation

PAM or pulse amplitude modulation is a system in which signal is sampled at regular intervals and each sample is made proportional to amplitude of the signal at the instant of sampling.