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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
A silicon crystal
And FET

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Microwave Communication
The resonant frequency of a cavity resonator depends upon

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

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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
Aid in calibrating the display unit
All of these
Prevent frequency drift in the klystron

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Microwave Communication
The coarse frequency adjustment of a reflex klystron is accomplished by

The AFC system
An adjustment in the synchronizer
Varying the repeller voltage
Adjusting the flexible wall of the resonant cavity

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Microwave Communication
Which causes multipath or frequency selective fading?

Large reflector
Small reflector
Further reflector
Nearer reflector

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Microwave Communication
What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna?

Circulator
Isolator
Simplex
Magnetron

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MORE MCQ ON Microwave Communication

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