Communication Systems When the length of antenna is a whole wavelength The radiation at right angles is zero The radiation is maximum in all directions The radiation at right angles is maximum The radiation is zero in all directions The radiation at right angles is zero The radiation is maximum in all directions The radiation at right angles is maximum The radiation is zero in all directions ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals Amplifiers low frequency signals None of these Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals Amplifiers low frequency signals None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by Good attenuation characteristics Filter method Phase cancellation method All of these Good attenuation characteristics Filter method Phase cancellation method All of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 8 15 16 1 8 15 16 1 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Improved efficiency The lower modulating power requirement Better linearity High power output per transistor Improved efficiency The lower modulating power requirement Better linearity High power output per transistor ANSWER DOWNLOAD EXAMIANS APP
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