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Microwave Communication

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

Capacitor
Varactor-triac
RF emitter
Ferrite emitter

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

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

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

Transmitter oscillator
Duplexer stage
Single mixer stage
Local oscillator

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Microwave Communication
Klystron oscillators are most often used in the frequency range of

300 to 3000 MHz
30 to 30000 MHz
3000 to 30000 MHz
10 to 10000 MHz

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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.

Fourth
Fifth
Third
Sixth

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Microwave Communication
The resonant frequency of a cavity resonator depends upon

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

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MORE MCQ ON Microwave Communication

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