Communication Systems In Modulation, “carrier” is Resultant wave Speech voltage to be transmitted Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Resultant wave Speech voltage to be transmitted Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Produce balanced modulation of a carrier wave Produce 100% modulation Suppress carrier signal in order to create a single-sideband or double sideband Limit noise picked by a receiver Produce balanced modulation of a carrier wave Produce 100% modulation Suppress carrier signal in order to create a single-sideband or double sideband Limit noise picked by a receiver ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by The reflected colour None of these Reflected colour for opaque object and wavelength transmitted through it for transparent objects The wavelength transmitted through it The reflected colour None of these Reflected colour for opaque object and wavelength transmitted through it for transparent objects The wavelength transmitted through it 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 decreases Amplitude of distant sidebands increases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands first increases, then decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems It is found that a ship to ship communication suffers from fading. This can be avoided by using Frequency diversity Broad band antenna Space diversity Directional antenna Frequency diversity Broad band antenna Space diversity Directional antenna ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 106 kHz 455 kHz 10.7 MHz 1.07 MHz 106 kHz 455 kHz 10.7 MHz 1.07 MHz ANSWER DOWNLOAD EXAMIANS APP
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