Microwave Communication A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the Oscillation will cease Output power would increase Bunching would occur earlier in time The frequency will decrease Oscillation will cease Output power would increase Bunching would occur earlier in time The frequency will decrease 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 Which of the reception problems below that is not due to multipath? Rayleigh fading Slow fading Random Doppler shift Delayed spreading Rayleigh fading Slow fading Random Doppler shift Delayed spreading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following permits a microwave signal to travel in one direction with virtually no loss, but severely attenuates any signal attempting to travel in the reverse direction? Circulator Isolator Wave trap Tunnel diode Circulator Isolator Wave trap Tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which causes multipath or frequency selective fading? Nearer reflector Large reflector Small reflector Further reflector Nearer reflector Large reflector Small reflector Further reflector 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/RL S = λR/L S = 2λR/L S = 3λR/L S = λR/RL S = λR/L ANSWER DOWNLOAD EXAMIANS APP
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