Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 10 kHz 1280 kHz 70 kHz 35 kHz 10 kHz 1280 kHz 70 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 1000 ohm 500 ohm 100 ohm 300 ohm 1000 ohm 500 ohm 100 ohm 300 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PCM DM All PSK PCM DM All PSK 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 In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands decreases ANSWER DOWNLOAD EXAMIANS APP
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