Communication Systems In a TV receiver antenna the length of reflector rod Is more than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is less than that of dipole Is more than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is less than that of dipole ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Better linearity Improved efficiency High power output per transistor The lower modulating power requirement Better linearity Improved efficiency High power output per transistor The lower modulating power requirement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 4.9 10 5 995 4.9 10 5 995 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To reduce bandwidth To increase bandwidth To prevent overmodulation To regulate oscillator I/P voltage To reduce bandwidth To increase bandwidth To prevent overmodulation To regulate oscillator I/P voltage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The maximum power output of a standard A earth station over the total band allocated to satellite communication is about 8 kW 20 kW 50 kW 0.5 kW 8 kW 20 kW 50 kW 0.5 kW ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Laser beam for both recording and playback Video head for recording and laser beam for playback Laser beam for recording and video head for playback None of these Laser beam for both recording and playback Video head for recording and laser beam for playback Laser beam for recording and video head for playback None of these ANSWER DOWNLOAD EXAMIANS APP
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