COMMUNICATION ENGINEERING

COMMUNICATION ENGINEERING
SEM-IV, 2013
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Marks: 50

Time: 2 hrs

Q1: Attempt any four

1. Why do we require modulation?
2. Derive the equation that represents amplitude modulation?
3. Draw the block diagram of superheterodyne receiver.
4. Explain a method to demodulate single sideband signal.
5. Explain the square law diode modulator for AM generation.
6. Derive the power relation for amplitude modulated wave.