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Microwave Communication

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

6370 mi
6370 km
8493 mmi
8493 km

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Microwave Communication
In a pulsed radar set, the function of the duplexer is to

Allow the transmitter and the receiver to operate from a common antenna
Prevent frequency drift in the klystron
All of these
Aid in calibrating the display unit

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

Reflex-klystron
Magnetron
Thyratron
Klystron

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Microwave Communication
The resonant frequency of a cavity resonator depends upon

The capacitor which tunes it
Its electrical dimensions
The mode of operation
Its physical dimensions

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Microwave Communication
In a radar-set receiver, the usual mixer stage is

A Rochelle salts crystal
A tunnel diode
A silicon crystal
And FET

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Microwave Communication
A high-power microwave pulse of the order of megawatts can be generated by a

Magnetron
Traveling-wave tube
Reflex klystron
Gunn diode

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MORE MCQ ON Microwave Communication

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