To eliminate ghosts in the picture Change the antenna orientation of location Twist the transmission line Connect a booster Use a longer transmission line TRUE ANSWER : ? YOUR ANSWER : ?
For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 0.5 0.8 1 TRUE ANSWER : ? YOUR ANSWER : ?
The main function of a balanced modulator is to Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Limit noise picked by a receiver TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an indirect way of generating FM? Reactance FET modulator Reactance bipolar transistor Armstrong modulator Varactor diode modulator TRUE ANSWER : ? YOUR ANSWER : ?
Under ordinary circumstances, impulse noise can be reduced in AM only Both AM and FM FM only None of these TRUE ANSWER : ? YOUR ANSWER : ?
A telephone channel requires a bandwidth of about 50 kHz 10 kHz 1 kHz 3 kHz TRUE ANSWER : ? YOUR ANSWER : ?
In a FM receiver, amplitude limiter None of these Amplifiers low frequency signals Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals TRUE ANSWER : ? YOUR ANSWER : ?
PAM stands for Pulse Amplitude Modulation Pulse Analogue Modulation Phase Analogue Modulation Phase Amplitude Modulation TRUE ANSWER : ? YOUR ANSWER : ?
In a TV receiver antenna the length of reflector rod May be equal, more or less than that of dipole Is less than that of dipole Is the same as that of dipole Is more than that of dipole TRUE ANSWER : ? YOUR ANSWER : ?