Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 995 5 10 4.9 995 5 10 4.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that Noise is very high for high frequency High output power is needed Large bandwidth is required High modulating power is needed Noise is very high for high frequency High output power is needed Large bandwidth is required High modulating power is needed ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It results in better reception It reduces the bandwidth requirement to half None of these It avoids phase distortion at low frequencies It results in better reception It reduces the bandwidth requirement to half None of these It avoids phase distortion at low frequencies ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Delta modulation Differential PCM PWM PCM Delta modulation Differential PCM PWM PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 1.07 MHz 10.7 MHz 106 kHz 455 kHz 1.07 MHz 10.7 MHz 106 kHz 455 kHz ANSWER DOWNLOAD EXAMIANS APP
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
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