Measurements and Instrumentation - Engineering

Q1:

PCM employing 4 bit code is used to send data having frequency range from 0 to 2 kHz. The minimum required bandwidth of carrier channel is

A 2 kHz

B 4 kHz

C 8 kHz

D 16 kHz

ANS:B - 4 kHz

Bandwidth required is twice the required frequency range.