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Microwave Communication

Microwave Communication
In an SHF pulsed radar set, a reflex klystron can be used as a

Duplexer stage
Local oscillator
Transmitter oscillator
Single mixer stage

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Microwave Communication
Which of the following is used as a high power microwave oscillator?

Klystron
Thyratron
Magnetron
Reflex-klystron

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Microwave Communication
Calculate the effective earth’s radius if the surface refractivity is 301.

8493 km
8493 mmi
6370 km
6370 mi

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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/2 mode
2π mode
π/4 mode
π mode

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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
1,000,000 watts
10,000 watts
1,000 watts

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Microwave Communication
If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers

Must remain as before
Must be doubled
May be decreased
Must be increased

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MORE MCQ ON Microwave Communication

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