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Microwave Communication

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

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

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Microwave Communication
What allow microwave to pass in only one direction?

RF emitter
Ferrite emitter
Varactor-triac
Capacitor

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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

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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
Fifth
Fourth
Sixth

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Microwave Communication
The maximum usable range of the usual radar set (on any particular range setting) is determined by

The width of the transmitted pulses
The duty cycle
The bandwidth of the receiver IF stages
The interval between transmitted pulses

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Microwave Communication
What do you call an attenuation that occurs over many different wavelengths of the carrier?

Wavelength fading
Rayleigh fading
Rician fading
Slow fading

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MORE MCQ ON Microwave Communication

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