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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 synchronizer
Tune the magnetron to the correct frequency
Which may be used to tune the radar receiver
To the tone of the pulse repetition
Which may be used to tune the radar synchronizer
Tune the magnetron to the correct frequency
Which may be used to tune the radar receiver
To the tone of the pulse repetition
Answer
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Related Question
Microwave Communication
The coarse frequency adjustment of a reflex klystron is accomplished by
Varying the repeller voltage
The AFC system
Adjusting the flexible wall of the resonant cavity
An adjustment in the synchronizer
Varying the repeller voltage
The AFC system
Adjusting the flexible wall of the resonant cavity
An adjustment in the synchronizer
Answer
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Microwave Communication
The main frequency determining element of a klystron is
The repeller voltage
Its resonant cavity
Its mode of operation
The accelerating voltage
The repeller voltage
Its resonant cavity
Its mode of operation
The accelerating voltage
Answer
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Microwave Communication
When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have
Low-pass filters
The restricted high-frequency response
A long time constant
The shortest possible time
Low-pass filters
The restricted high-frequency response
A long time constant
The shortest possible time
Answer
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Microwave Communication
The aquadag coating on the inside of PPI tube is used
All of these
To focus the beam of primary electrons
To shield the electron beam from unidirectional magnetic
As a second anode and to prevent the build-up of secondary field
All of these
To focus the beam of primary electrons
To shield the electron beam from unidirectional magnetic
As a second anode and to prevent the build-up of secondary field
Answer
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Microwave Communication
Klystron oscillators are most often used in the frequency range of
10 to 10000 MHz
3000 to 30000 MHz
300 to 3000 MHz
30 to 30000 MHz
10 to 10000 MHz
3000 to 30000 MHz
300 to 3000 MHz
30 to 30000 MHz
Answer
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