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Microwave Communication

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

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

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

Traveling-wave tube
Reflex klystron
Gunn diode
Magnetron

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Microwave Communication
Coupling into and out of a traveling-wave tube can be accompanied by a

Cavity match
All of these
Direct coax-helix match
Waveguide match

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Microwave Communication
Which of the reception problems below that is not due to multipath?

Rayleigh fading
Slow fading
Delayed spreading
Random Doppler shift

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Microwave Communication
The main frequency determining element of a klystron is

The accelerating voltage
Its resonant cavity
Its mode of operation
The repeller voltage

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Microwave Communication
If k-factor is greater than 1, the array beam is bent

Away from the earth
Towards the ionosphere,
Towards the earth
Towards the outer space

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MORE MCQ ON Microwave Communication

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