Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To increase bandwidth To reduce bandwidth To regulate oscillator I/P voltage To prevent overmodulation To increase bandwidth To reduce bandwidth To regulate oscillator I/P voltage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Neither A nor B Half duplex arrangement Duplex arrangement Either A or B Neither A nor B Half duplex arrangement Duplex arrangement Either A or B ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 1 3 -3 2 1 3 -3 2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is A double-tuned amplifier None of these A cathode follower stage A high gain D.C. amplifier A double-tuned amplifier None of these A cathode follower stage A high gain D.C. amplifier ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 50 kHz 1 kHz 3 kHz 10 kHz 50 kHz 1 kHz 3 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
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