Microwave Communication Oscillators of a klystron tube are maintained By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By plate-to-cathode feedback By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By plate-to-cathode feedback By bunches of electrons passing the cavity grids ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which causes multipath or frequency selective fading? Large reflector Small reflector Further reflector Nearer reflector Large reflector Small reflector Further reflector Nearer reflector ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The Gunn diode oscillator Generates frequencies which are below 100 MHz Is capable of generating continuous microwave power of the order of kilowatt Operates over a positive resistance characteristic Depends on the formation of charge domain Generates frequencies which are below 100 MHz Is capable of generating continuous microwave power of the order of kilowatt Operates over a positive resistance characteristic Depends on the formation of charge domain ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Local oscillator Transmitter oscillator Duplexer stage Single mixer stage Local oscillator Transmitter oscillator Duplexer stage Single mixer stage ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the STC circuit is used to Increases receiver sensitivity for echoes from targets Reduce interference from the effects of sea return Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution Increases receiver sensitivity for echoes from targets Reduce interference from the effects of sea return Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. Which may be used to tune the radar receiver Which may be used to tune the radar synchronizer Tune the magnetron to the correct frequency To the tone of the pulse repetition Which may be used to tune the radar receiver Which may be used to tune the radar synchronizer Tune the magnetron to the correct frequency To the tone of the pulse repetition ANSWER DOWNLOAD EXAMIANS APP
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