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Question

The radio altimeter on an aircraft is a

A
MTI radar
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B
continuous wave radar
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C
FM-continuous wave radar
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D
Dopplerradar
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Solution

The correct option is C FM-continuous wave radar
The radio altimeter on an aircraft is a FM- continuous wave radar. It is used on aircraft, measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it takes a beam of radio waves to reflect from the ground and return to the plane.

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