Communication Systems Which of the following is a digital modulation technique? PCM All PSK DM PCM All PSK DM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Low pass filter Band stop filter High pass filter Band pass filter Low pass filter Band stop filter High pass filter Band pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by All of these Phase cancellation method Filter method Good attenuation characteristics All of these Phase cancellation method Filter method Good attenuation characteristics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 500 ohm 1000 ohm 300 ohm 100 ohm 500 ohm 1000 ohm 300 ohm 100 ohm ANSWER DOWNLOAD EXAMIANS APP
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