Microwave Communication The aquadag coating on the inside of PPI tube is used To shield the electron beam from unidirectional magnetic All of these To focus the beam of primary electrons As a second anode and to prevent the build-up of secondary field To shield the electron beam from unidirectional magnetic All of these To focus the beam of primary electrons As a second anode and to prevent the build-up of secondary field ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna? Circulator Simplex Isolator Magnetron Circulator Simplex Isolator Magnetron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be A decrease in gain A reduction in horizontal resolution No noticeable effect A decrease in range A decrease in gain A reduction in horizontal resolution No noticeable effect A decrease in range ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the STC circuit is used to Increases receiver sensitivity for echoes from targets Improve the target bearing resolution Vary the pulse frequency in order to control the maximum target Reduce interference from the effects of sea return Increases receiver sensitivity for echoes from targets Improve the target bearing resolution Vary the pulse frequency in order to control the maximum target Reduce interference from the effects of sea return ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a radar-set receiver, the usual mixer stage is And FET A Rochelle salts crystal A silicon crystal A tunnel diode And FET A Rochelle salts crystal A silicon crystal A tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication To achieve good bearing resolution when using a pulsed-radar set, an important requirement is A narrow, antenna-beam width in the horizontal plane A low repetition rate A high duty cycle A narrow, antenna-beam width in the vertical plane A narrow, antenna-beam width in the horizontal plane A low repetition rate A high duty cycle A narrow, antenna-beam width in the vertical plane ANSWER DOWNLOAD EXAMIANS APP
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