Question
 In a digital communication system’s block diagram,
which of the below components can be found at the receiver?Solution
The correct answer is Demodulator , because at the receiver side of a digital communication system, the incoming modulated signal must be demodulated to recover the original baseband data before decoding. ●     Channel encoder → used at the transmitter to add redundancy for error detection and correction. ●     Modulator → used at the transmitter to map digital data onto a carrier. ●     Source encoder → used at the transmitter to compress or represent source information efficiently.
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