Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. Which may be used to tune the radar receiver Tune the magnetron to the correct frequency To the tone of the pulse repetition Which may be used to tune the radar synchronizer Which may be used to tune the radar receiver Tune the magnetron to the correct frequency To the tone of the pulse repetition Which may be used to tune the radar synchronizer 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 = λR/L S = 3λR/L S = 2λR/L S = λR/RL S = λR/L S = 3λR/L S = 2λR/L S = λR/RL ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The flux density of the external magnet The number of the cavity resonators The dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet The number of the cavity resonators The dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the The frequency will decrease Output power would increase Bunching would occur earlier in time Oscillation will cease The frequency will decrease Output power would increase Bunching would occur earlier in time Oscillation will cease ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The main frequency determining element of a klystron is Its resonant cavity The repeller voltage Its mode of operation The accelerating voltage Its resonant cavity The repeller voltage Its mode of operation The accelerating voltage ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon Its electrical dimensions The capacitor which tunes it The mode of operation Its physical dimensions Its electrical dimensions The capacitor which tunes it The mode of operation Its physical dimensions ANSWER DOWNLOAD EXAMIANS APP
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