Question

In the given block diagram of a receiver, identify the boxes labelled as X and Y and write their functions.

Answer 1

Hint:A communication system's block diagram would have five blocks, namely the source of input, transmitter, channel, receiver and destination blocks. This information is converted into physical quantity by the information source.

Complete step by step answer:
Receiving antenna: The reverse phase is done by receiving antennas when they absorb radio-frequency radiation and transform it into the necessary signals (e.g Conversely, a non-directional device is required where the transmitter or receiver is not stationary, as in cellular communication.
Amplifier: An amplifier increases the amplitude of the receiver. Otherwise the receiver signal may not be strong. An amplifier is the unit that converts the source equipment 's low voltage signals into a signal with ample gain to be used to control a pair of speakers.
Detector: In radio, a detector is a system or circuit that collects data from a modulated radio frequency current or voltage. The system in the receiver circuit that performed this purpose was called a detector.
X is the If stage. Moving the frequency of the carrier to a lower frequency is the intermediate step. The amplifier is Y. To compensate for the signal's attenuation, it increases the amplitude of the sensed signal. Otherwise, the detected ones might not be good enough to use.

Hence,X is the If stage and Y is the amplifier.

Note:An antenna that transforms some of the energy from the incoming radio wave into a tiny radio frequency AC voltage that is applied to the input of the receiver is attached to a radio receiver. An antenna normally consists of an array of conductors of metal.Receiver, in electronics, any of the different instruments that accept and transform (often with amplification) signals, such as radio waves, into a useful form.