Microwave Communication Which of the following is used as an oscillator device in the SHF band? Both B and C Tunnel diode Klystron tube Thyratron tube Both B and C Tunnel diode Klystron tube Thyratron tube ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the Bunching would occur earlier in time Output power would increase Oscillation will cease The frequency will decrease Bunching would occur earlier in time Output power would increase Oscillation will cease The frequency will decrease 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 No noticeable effect A decrease in range A reduction in horizontal resolution A decrease in gain No noticeable effect A decrease in range A reduction in horizontal resolution 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/L S = 3λR/L S = λR/RL S = 2λR/L S = λR/L S = 3λR/L S = λR/RL S = 2λR/L 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? Simplex Magnetron Circulator Isolator Simplex Magnetron Circulator Isolator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Single mixer stage Duplexer stage Local oscillator Transmitter oscillator Single mixer stage Duplexer stage Local oscillator Transmitter oscillator ANSWER DOWNLOAD EXAMIANS APP
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