Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Medium frequency Very high frequency Low frequency High frequency Medium frequency Very high frequency Low frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Pulse Analogue Modulation Phase Amplitude Modulation Phase Analogue Modulation Pulse Amplitude Modulation Pulse Analogue Modulation Phase Amplitude Modulation Phase Analogue Modulation Pulse Amplitude Modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 35 kHz 10 kHz 70 kHz 1280 kHz 35 kHz 10 kHz 70 kHz 1280 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Harmonic devices Class C amplifiers Non-linear devices Linear devices Harmonic devices Class C amplifiers Non-linear devices Linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Limit noise picked by a receiver Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Produce balanced modulation of a carrier wave Limit noise picked by a receiver Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Produce balanced modulation of a carrier wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Better linearity The lower modulating power requirement High power output per transistor Improved efficiency Better linearity The lower modulating power requirement High power output per transistor Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
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