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Microwave Communication

Microwave Communication
Microwave frequencies are normally regarded as those in the range of

10 to 1000 GHz
1 to 500 MHz
1000 to 10,000 GHz
1 to 100 GHz

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

All of these
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

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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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Microwave Communication
A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be

A decrease in range
A decrease in gain
No noticeable effect
A reduction in horizontal resolution

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Microwave Communication
Calculate the effective earth’s radius if the surface refractivity is 301.

8493 mmi
6370 mi
6370 km
8493 km

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Microwave Communication
A traveling-wave tube (TWT) amplifies by virtue of

The energy liberated form the collector
The absorption of energy by the signal from an electron stream
The energy contained the cavity resonators
The effect of an external magnetic field

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MORE MCQ ON Microwave Communication

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