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Microwave Communication
As the electron beam moves through a klystron’s intercavity drift space
Frequency modulation at the input cavity creates velocity modulation at the output cavity
Phase modulation at the input cavity creates velocity modulation at the output cavity.
Density modulation at the input cavity creates velocity modulation at the output cavity
Velocity modulation at the input cavity creates density modulation at the output cavity
Frequency modulation at the input cavity creates velocity modulation at the output cavity
Phase modulation at the input cavity creates velocity modulation at the output cavity.
Density modulation at the input cavity creates velocity modulation at the output cavity
Velocity modulation at the input cavity creates density modulation at the output cavity
Answer
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Related Question
Microwave Communication
At what position is the input signal inserted into a traveling-wave tube?
At the cathode end of the helix
At the control grid of the electron gun
At the collector end of the helix
At the collector
At the cathode end of the helix
At the control grid of the electron gun
At the collector end of the helix
At the collector
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
The shortest possible time
The restricted high-frequency response
Low-pass filters
A long time constant
The shortest possible time
The restricted high-frequency response
Low-pass filters
A long time constant
Answer
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Microwave Communication
Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance.
Third
Fourth
Sixth
Fifth
Third
Fourth
Sixth
Fifth
Answer
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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
100 watts
1,000 watts
1,000,000 watts
10,000 watts
100 watts
1,000 watts
1,000,000 watts
10,000 watts
Answer
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Microwave Communication
A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the
Oscillation will cease
Bunching would occur earlier in time
Output power would increase
The frequency will decrease
Oscillation will cease
Bunching would occur earlier in time
Output power would increase
The frequency will decrease
Answer
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