Microwave Communication In a pulsed radar set, the STC circuit is used to Increases receiver sensitivity for echoes from targets Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution Reduce interference from the effects of sea return Increases receiver sensitivity for echoes from targets Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution Reduce interference from the effects of sea return 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 reduction in horizontal resolution A decrease in range No noticeable effect A decrease in gain A reduction in horizontal resolution A decrease in range No noticeable effect A decrease in gain ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The Gunn diode oscillator Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Generates frequencies which are below 100 MHz Depends on the formation of charge domain Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Generates frequencies which are below 100 MHz Depends on the formation of charge domain ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Thyratron tube Both B and C Tunnel diode Klystron tube Thyratron tube Both B and C Tunnel diode Klystron tube ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If k-factor is greater than 1, the array beam is bent Away from the earth Towards the outer space Towards the earth Towards the ionosphere, Away from the earth Towards the outer space Towards the earth Towards the ionosphere, ANSWER DOWNLOAD EXAMIANS APP
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