Communication Systems In practical commercial FM system, channel bandwidth is 108 MHz 88 MHz 150 kHz 100 kHz 108 MHz 88 MHz 150 kHz 100 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 1 -3 2 3 1 -3 2 3 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
Communication Systems VSB modulation is preferred in TV because It avoids phase distortion at low frequencies None of these It reduces the bandwidth requirement to half It results in better reception It avoids phase distortion at low frequencies None of these It reduces the bandwidth requirement to half It results in better reception ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is None of these Cheaper Almost equally costly Costly None of these Cheaper Almost equally costly Costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Gets doubled Gets halved Gets increased by 50 percent Remains unchanged Gets doubled Gets halved Gets increased by 50 percent Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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