Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna None of these Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Amplifiers low frequency signals Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals None of these Amplifiers low frequency signals Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Phase Analogue Modulation Pulse Analogue Modulation Pulse Amplitude Modulation Phase Amplitude Modulation Phase Analogue Modulation Pulse Analogue Modulation Pulse Amplitude Modulation Phase Amplitude Modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Class C amplifiers Linear devices Harmonic devices Non-linear devices Class C amplifiers Linear devices Harmonic devices Non-linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PSK PCM All DM PSK PCM All DM ANSWER DOWNLOAD EXAMIANS APP
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