Microwave Communication To achieve good bearing resolution when using a pulsed-radar set, an important requirement is A narrow, antenna-beam width in the vertical plane A low repetition rate A narrow, antenna-beam width in the horizontal plane A high duty cycle A narrow, antenna-beam width in the vertical plane A low repetition rate A narrow, antenna-beam width in the horizontal plane A high duty cycle ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 MHz 10 GHz 100 GHz 1 GHz 100 MHz 10 GHz 100 GHz 1 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The dimension of each cavity resonator The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet The dimension of each cavity resonator The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the π/4 mode π/2 mode 2π mode π mode π/4 mode π/2 mode 2π mode π mode 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 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 No noticeable effect 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 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS