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Microwave Communication

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

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

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Microwave Communication
A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor.

Echosounder
SONAR
Fathometer
LORAN

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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

The frequency will decrease
Output power would increase
Bunching would occur earlier in time
Oscillation will cease

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Microwave Communication
If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers

Must remain as before
Must be increased
May be decreased
Must be doubled

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Microwave Communication
A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B)

May be tested during the first five minutes of any hour
Must have its battery replaced after emergency use
Must be capable of floating or being secured to a survival
All of these

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Microwave Communication
Which causes multipath or frequency selective fading?

Small reflector
Further reflector
Large reflector
Nearer reflector

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MORE MCQ ON Microwave Communication

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