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Microwave Communication

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

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

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

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

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Microwave Communication
A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is

1,000,000 watts
1,000 watts
100 watts
10,000 watts

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Microwave Communication
The aquadag coating on the inside of PPI tube is used

All of these
To shield the electron beam from unidirectional magnetic
To focus the beam of primary electrons
As a second anode and to prevent the build-up of secondary field

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

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

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

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

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MORE MCQ ON Microwave Communication

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