Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage 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 In a FM receiver, amplitude limiter Amplifiers low frequency signals Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals None of these Amplifiers low frequency signals Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Schmitt trigger JK flip-flop Monostable multi-vibrator Free running multi-vibrator Schmitt trigger JK flip-flop Monostable multi-vibrator Free running multi-vibrator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is None of these Almost equally costly Cheaper Costly None of these Almost equally costly Cheaper Costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Voltage for which frequency, phase or amplitude is varied Resultant wave Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied Resultant wave Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS