Question

The ability of receivers to select the wanted signals among various incoming signal is called ________

(a) Selectivity

(b) Fidelity

(c) Sensitivity

(d) Modulation

I have been asked this question in an interview for internship.

This interesting question is from Source of Information topic in division Elements of Communication System of Analog Communications

Answer 1

Right choice is (a) Selectivity

The explanation: The ability of receiver to select wanted signal from various incoming signals is called selectivity. It rejects the other signals at closely lying frequencies. Sensitivity is the ability of the receiver to amplify weak signals. Fidelity is the feature of receiver to reproduce all modulating frequencies equally. While modulation is the process of varying one or more properties of carrier signal with respect to the modulating signal.