The ability of a receiver to separate one signal from others on closely adjacent frequencies is called thea.Selectivityb.Sensitivityc.S/N ratiod.Gain

IF amplifier perform the following functions(choose one or multiple applicable)Group of answer choicesto achieve good sensitivityto accept only IF frequency and reject othersdemodulate the signalmix both signals the incoming and the local oscillaotor signals.to achieve good selectivityproduce local frequency in order to tune receiver

modulation is used to Select one:a. seperate different input signalsb. all c. have practically possible height of antennad. ensure information is transmitted over large distances

………………….. is the overlapping of frequency bands which can distort/wipe-out a signal.a.Distortionb.Attenuationc.Noised.Interference

A communication system consists of Select one:a. transmitterb. channelc. all of themd. receiver

1 pointRatio of the change in output signal to change in input quantity is called Selectivity Sensitivity Resolution Precision