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प्रश्न
Explain the function of a repeater in a communication system.
उत्तर
A repeater is used for extending the range of a communication system. It consists of a receiver and a transmitter. The receiver of a repeater collects the signal from the transmitter of another repeater and after amplifying, it retransmits the signal. Sometimes, it also changes the carrier frequency of the pick-up signal before transmitting it to the receiver.
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संबंधित प्रश्न
Draw a block diagram of generalized communication system.
Draw a neat, labelled block diagram for a generalised communication system.
Name the essential components of a communication system.
Distinguish between ‘Analog’ and ‘Digital’ forms of communication.
Write two basic modes of communication
Any device that converts one form of energy into another is termed as ______.
(A) amplifier
(B) transducer
(C) receiver
(D) demodulator
For efficient radiation and reception of signal with wavelength λ, the transmitting antennas would have length comparable to ______.
(A)`lambda` of frequency used
(B)`lambda/2` of frequency used
(C )`lambda/3` of frequency used
(D)`lambda/4` of frequency used
Draw the block diagram of a receiver in communication system
Answer the following question :
Write the functions of transducer and repeater ?
Explain the terms (a) Transducer and (b) Attenuation in communication system.
