Communication Systems
What is the purpose of peak clipper circuits in radio transmitters?

To increase bandwidth
To reduce bandwidth
To regulate oscillator I/P voltage
To prevent overmodulation

ANSWER DOWNLOAD EXAMIANS APP

Communication Systems
Circular polarization

Is useful in discrimination between reception of adjacent beams
None of these
Involves critical alignment of transmitting and receiving antenna
Is useful in reducing depolarization effect on received wave

ANSWER DOWNLOAD EXAMIANS APP

Communication Systems
DVD uses

Video head for recording and laser beam for playback
Laser beam for both recording and playback
None of these
Laser beam for recording and video head for playback

ANSWER DOWNLOAD EXAMIANS APP