Microwave Communication Which causes multipath or frequency selective fading? Nearer reflector Further reflector Large reflector Small reflector Nearer reflector Further reflector Large reflector Small reflector ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the STC circuit is used to Increases receiver sensitivity for echoes from targets Improve the target bearing resolution Vary the pulse frequency in order to control the maximum target Reduce interference from the effects of sea return Increases receiver sensitivity for echoes from targets Improve the target bearing resolution Vary the pulse frequency in order to control the maximum target Reduce interference from the effects of sea return ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a radar-set receiver, the usual mixer stage is And FET A Rochelle salts crystal A silicon crystal A tunnel diode And FET A Rochelle salts crystal A silicon crystal A tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A PPI cathode-ray tube as used on a radar set Indicates only the range of a target Indicates both the range and azimuth of a target Is used to check the percentage of modulation Is used for receiver alignment Indicates only the range of a target Indicates both the range and azimuth of a target Is used to check the percentage of modulation Is used for receiver alignment 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 A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is 100 watts 10,000 watts 1,000,000 watts 1,000 watts 100 watts 10,000 watts 1,000,000 watts 1,000 watts ANSWER DOWNLOAD EXAMIANS APP
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