Question

Draw a block diagram of a generalised communication systeam . Write the function of each

Answer 1

The transmitter's function is to process the message signal into a form suitable for transmission over the communication channel. This is called modulation. As for the communication channel, its function is to provide a pathway between the transmitter's output and the receiver's input. The job of the receiver is to process the received signal to recover the appropriate message signal. If the different elements do their jobs accordingly, then the output signal should equal to the input message signal.