Communication Systems Which of the following is an indirect way of generating FM? Reactance FET modulator Reactance bipolar transistor Varactor diode modulator Armstrong modulator Reactance FET modulator Reactance bipolar transistor Varactor diode modulator Armstrong modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals None of these Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals None of these Reduces the amplitude of signals ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams ANSWER DOWNLOAD EXAMIANS APP
Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Small capacity Infinite capacity Zero capacity None of these Small capacity Infinite capacity Zero capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Phase Amplitude Modulation Pulse Analogue Modulation Pulse Amplitude Modulation Phase Analogue Modulation Phase Amplitude Modulation Pulse Analogue Modulation Pulse Amplitude Modulation Phase Analogue Modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Limit noise picked by a receiver Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Limit noise picked by a receiver Produce balanced modulation of a carrier wave ANSWER DOWNLOAD EXAMIANS APP
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