Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 500 ohm 1000 ohm 100 ohm 300 ohm 500 ohm 1000 ohm 100 ohm 300 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that High output power is needed Large bandwidth is required Noise is very high for high frequency High modulating power is needed High output power is needed Large bandwidth is required Noise is very high for high frequency High modulating power is needed ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Neither A nor B Duplex arrangement Either A or B Half duplex arrangement Neither A nor B Duplex arrangement Either A or B Half duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Clockwise or anticlockwise depending on frequency of data stored Clockwise Mostly anticlockwise but some times clockwise Anticlockwise Clockwise or anticlockwise depending on frequency of data stored Clockwise Mostly anticlockwise but some times clockwise Anticlockwise ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as High frequency Low frequency Very high frequency Medium frequency High frequency Low frequency Very high frequency Medium frequency ANSWER DOWNLOAD EXAMIANS APP
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