Block diagram of a receiver is shown in the figure.(i) Identify 'X' a

1.	Block diagram of a receiver is shown in the figure.(i) Identify 'X' and 'Y'.(ii) Write their functions.
Answer» (i) X : IF stage Y : Amplifier 14 (ii) The carrier frequency is changed to a lower frequency by intermediate frequency (IF) stage preceding the detection. An amplifier increases the strenglh of the detected signal.

Block diagram of a receiver is shown in the figure.(i) Identify 'X' and 'Y'.(ii) Write their functions.

Answer»

(i) X : IF stage

Y : Amplifier 14

(ii) The carrier frequency is changed to a lower frequency by intermediate frequency (IF) stage preceding the detection.

An amplifier increases the strenglh of the detected signal.