KERALA UNIVERSITY Class 3 analog communication Question Paper 2020

Practice authentic previous year questions for better exam preparation.

Sample Questions

(a) A super-heterodyne receiver is tuned to receive a 1 MHz carrier amplitude by 1 KHz sine wave. It is also assumed that the IF frequency is 455 KHz . Find the frequency components at the input and output of the IF amplifier. Assume the IF bandwidth...
(b) What is image frequency?
(c) What is noise temperature? Derive the expression for the noise temperature ' $\mathrm{T}_{\mathrm{n}}$ ' interms of noise factor $F$.
(b) Differentiate between FM and PM with the help of necessary equations.
(c) Compare the advantages and disadvantages of AM and FM systems.