Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Cavity match All of these Direct coax-helix match Waveguide match Cavity match All of these Direct coax-helix match Waveguide match 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 reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect A reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect 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 1,000,000 watts 1,000 watts 10,000 watts 100 watts 1,000,000 watts 1,000 watts 10,000 watts 100 watts 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? Wave trap Tunnel diode Isolator Circulator Wave trap Tunnel diode Isolator Circulator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the reception problems below that is not due to multipath? Random Doppler shift Delayed spreading Slow fading Rayleigh fading Random Doppler shift Delayed spreading Slow fading Rayleigh fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which causes multipath or frequency selective fading? Large reflector Further reflector Small reflector Nearer reflector Large reflector Further reflector Small reflector Nearer reflector ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS