Microwave Communication When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have The restricted high-frequency response Low-pass filters The shortest possible time A long time constant The restricted high-frequency response Low-pass filters The shortest possible time A long time constant 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 Tunnel diode Wave trap Circulator Isolator Tunnel diode Wave trap ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The main frequency determining element of a klystron is The accelerating voltage Its resonant cavity The repeller voltage Its mode of operation The accelerating voltage Its resonant cavity The repeller voltage Its mode of operation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B) All of these Must be capable of floating or being secured to a survival May be tested during the first five minutes of any hour Must have its battery replaced after emergency use All of these Must be capable of floating or being secured to a survival May be tested during the first five minutes of any hour Must have its battery replaced after emergency use ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which causes multipath or frequency selective fading? Nearer reflector Large reflector Further reflector Small reflector Nearer reflector Large reflector Further reflector Small 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 = λR/L S = λR/RL S = 3λR/L S = 2λR/L S = λR/L S = λR/RL S = 3λR/L ANSWER DOWNLOAD EXAMIANS APP
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