Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 0.5 1 0.8 0.5 1 0.8 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 80 kHz 65 kHz 70 kHz 75 kHz 80 kHz 65 kHz 70 kHz 75 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Harmonic devices Non-linear devices Linear devices Class C amplifiers Harmonic devices Non-linear devices Linear devices Class C amplifiers 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 High modulating power is needed Large bandwidth is required Noise is very high for high frequency High output power is needed High modulating power is needed Large bandwidth is required ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is PCM Two tone modulation Single tone modulation FSK PCM Two tone modulation Single tone modulation FSK ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For attenuation of high frequencies we should use Resistance Inductance Series capacitance Shunt capacitance Resistance Inductance Series capacitance Shunt capacitance ANSWER DOWNLOAD EXAMIANS APP
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