Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the collector At the control grid of the electron gun At the collector end of the helix At the cathode end of the helix At the collector At the control grid of the electron gun At the collector end of the helix At the cathode end of the helix 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. To the tone of the pulse repetition Which may be used to tune the radar receiver Tune the magnetron to the correct frequency Which may be used to tune the radar synchronizer To the tone of the pulse repetition Which may be used to tune the radar receiver Tune the magnetron to the correct frequency Which may be used to tune the radar synchronizer ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the STC circuit is used to 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 Increases receiver sensitivity for echoes from targets Reduce interference from the effects of sea return ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A high-power microwave pulse of the order of megawatts can be generated by a Gunn diode Traveling-wave tube Magnetron Reflex klystron Gunn diode Traveling-wave tube Magnetron Reflex klystron 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 = 2λR/L S = 3λR/L S = λR/L S = λR/RL S = 2λR/L S = 3λR/L S = λR/L S = λR/RL ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The maximum usable range of the usual radar set (on any particular range setting) is determined by The duty cycle The width of the transmitted pulses The interval between transmitted pulses The bandwidth of the receiver IF stages The duty cycle The width of the transmitted pulses The interval between transmitted pulses The bandwidth of the receiver IF stages ANSWER DOWNLOAD EXAMIANS APP
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