Microwave Communication The resonant frequency of a cavity resonator depends upon The mode of operation Its electrical dimensions The capacitor which tunes it Its physical dimensions The mode of operation Its electrical dimensions The capacitor which tunes it Its physical dimensions ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The aquadag coating on the inside of PPI tube is used To shield the electron beam from unidirectional magnetic To focus the beam of primary electrons As a second anode and to prevent the build-up of secondary field All of these To shield the electron beam from unidirectional magnetic To focus the beam of primary electrons As a second anode and to prevent the build-up of secondary field All of these ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A PPI cathode-ray tube as used on a radar set Indicates both the range and azimuth of a target Indicates only the range of a target Is used for receiver alignment Is used to check the percentage of modulation Indicates both the range and azimuth of a target Indicates only the range of a target Is used for receiver alignment Is used to check the percentage of modulation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:where R = effective earth radius (m) and L = path length (m) S = λR/RL S = 3λR/L S = 2λR/L S = λR/L S = λR/RL S = 3λR/L S = 2λR/L S = λR/L ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What allow microwave to pass in only one direction? Ferrite emitter RF emitter Varactor-triac Capacitor Ferrite emitter RF emitter Varactor-triac Capacitor ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have The restricted high-frequency response A long time constant Low-pass filters The shortest possible time The restricted high-frequency response A long time constant Low-pass filters The shortest possible time ANSWER DOWNLOAD EXAMIANS APP
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