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Microwave Communication
In a pulsed radar set, the STC circuit is used to
Improve the target bearing resolution
Reduce interference from the effects of sea return
Vary the pulse frequency in order to control the maximum target
Increases receiver sensitivity for echoes from targets
Improve the target bearing resolution
Reduce interference from the effects of sea return
Vary the pulse frequency in order to control the maximum target
Increases receiver sensitivity for echoes from targets
Answer
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Related Question
Microwave Communication
Oscillators of a klystron tube are maintained
By plate-to-cathode feedback
By bunches of electrons passing the cavity grids
By circulating bunches of electrons within the cavities.
By feedback between the accelerating grid and the repeller
By plate-to-cathode feedback
By bunches of electrons passing the cavity grids
By circulating bunches of electrons within the cavities.
By feedback between the accelerating grid and the repeller
Answer
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Microwave Communication
The coarse frequency adjustment of a reflex klystron is accomplished by
The AFC system
An adjustment in the synchronizer
Varying the repeller voltage
Adjusting the flexible wall of the resonant cavity
The AFC system
An adjustment in the synchronizer
Varying the repeller voltage
Adjusting the flexible wall of the resonant cavity
Answer
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Microwave Communication
The frequency of the oscillation generated by a magnetron, is mainly determined by
The ratio of the dc cathode voltage to the magnetic flux density
The number of the cavity resonators
The flux density of the external magnet
The dimension of each cavity resonator
The ratio of the dc cathode voltage to the magnetic flux density
The number of the cavity resonators
The flux density of the external magnet
The dimension of each cavity resonator
Answer
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Microwave Communication
The resonant frequency of a cavity resonator depends upon
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
Its electrical dimensions
Answer
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Microwave Communication
A PPI cathode-ray tube as used on a radar set
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
Indicates only the range of a target
Indicates both the range and azimuth of a target
Is used to check the percentage of modulation
Answer
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