Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a TV receiver antenna the length of reflector rod Is less than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is more than that of dipole Is less than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is more than that of dipole 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 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 Produce balanced modulation of a carrier wave Produce 100% modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 70 kHz 75 kHz 65 kHz 80 kHz 70 kHz 75 kHz 65 kHz 80 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Remains unchanged Gets doubled Gets increased by 50 percent Gets halved Remains unchanged Gets doubled Gets increased by 50 percent Gets halved ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Band stop filter Band pass filter High pass filter Low pass filter Band stop filter Band pass filter High pass filter Low pass filter ANSWER DOWNLOAD EXAMIANS APP
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