Communication Systems For AM receivers the standard IF frequency is 455 kHz 106 kHz 1.07 MHz 10.7 MHz 455 kHz 106 kHz 1.07 MHz 10.7 MHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by The wavelength transmitted through it None of these The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects The wavelength transmitted through it None of these The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is PCM FSK Single tone modulation Two tone modulation PCM FSK Single tone modulation Two tone modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? PWM Differential PCM PCM Delta modulation PWM Differential PCM PCM Delta modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For attenuation of high frequencies we should use Resistance Shunt capacitance Inductance Series capacitance Resistance Shunt capacitance Inductance Series capacitance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are 200 and 100.1 200 and 200 200 and 1.01 200 and 10.01 200 and 100.1 200 and 200 200 and 1.01 200 and 10.01 ANSWER DOWNLOAD EXAMIANS APP
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