KERALA UNIVERSITY Class 4 analog communication Question Paper 2021

Practice authentic previous year questions for better exam preparation.

Sample Questions

What is image frequency and its rejection ratio?
(a) A carrier wave has an unmodulated frequency of 6 MHz . Skelch the inslanlaneous frequency lime curve when it is frequency modulated by a 4 kHz square waveform which is varied 5Vp-p aboul zero do value. The frequency devialion constant is 8 kHztvo...
Explain the generation of DSB-SC AM using balanced modulator. ..... 10 12 (a) Discuss on envelope delection of AM. ..... 5 (b) Write short noles on linee poinl tracking ..... 5 13 Wiln a block diagram, explain the operation of AM Iransmiller. ..... 1...
Explain the working of slandard telephone set with block diagram. ..... 10 $$ \{6 \times 10=60 \text { Marks\} } $$
Compare the analog modulation schemes $\mathrm{AM}, \mathrm{FM}$ and PM .