Communication Systems In Modulation, “carrier” is Speech voltage to be transmitted Resultant wave Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Speech voltage to be transmitted Resultant wave Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies It results in better reception None of these It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies It results in better reception None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is High power output per transistor The lower modulating power requirement Better linearity Improved efficiency High power output per transistor The lower modulating power requirement Better linearity Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To reduce bandwidth To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Costly None of these Almost equally costly Cheaper Costly None of these Almost equally costly Cheaper ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Pulse Analogue Modulation Phase Analogue Modulation Pulse Amplitude Modulation Phase Amplitude Modulation Pulse Analogue Modulation Phase Analogue Modulation Pulse Amplitude Modulation Phase Amplitude Modulation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS