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 To increase bandwidth To reduce bandwidth To regulate oscillator I/P voltage To prevent overmodulation 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 A fundamental sine wave and harmonics Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics A fundamental sine wave and harmonics Fundamental and subharmonic sine waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Linear devices Harmonic devices Class C amplifiers Non-linear devices Linear devices Harmonic devices Class C amplifiers Non-linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In practical commercial FM system, channel bandwidth is 88 MHz 150 kHz 100 kHz 108 MHz 88 MHz 150 kHz 100 kHz 108 MHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? PCM Delta modulation Differential PCM PWM PCM Delta modulation Differential PCM PWM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that Large bandwidth is required Noise is very high for high frequency High modulating power is needed High output power is needed Large bandwidth is required Noise is very high for high frequency High modulating power is needed High output power is needed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS