12th Class Physics Communication System / संचार तंत्र Question Bank Communication Systems Conceptual Problems

  • question_answer
    How do we make the choice of a communication channel? A message signal has a band- width of 5 MHz. Suggest a possible communication channel for its transmission.                

    Answer:

                    The choice of communication channel depends both on the nature of the signal and the nature of the communication of medium. (i) For guided media, the medium itself is important. (ii) For unguided media, the frequency band of signal is important. For the transmission of a message signal of bandwidth\[\text{5 MHz}\], the suitable communication channels are (i) Co-axial cable and (ii) AM radio.


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