Nav Aids 9
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What is the basic function of a radio altimeter?
to measure the A/Cs height above terrain directly below
what is the basic principal of operation of a Radio Altimeter?
How does a radio altimeter avoid the risk of height ambiguity?
By using a low rate of modulation of the sweep band of frequencies
In what frequency band does the radio altimeter operate?
When does the Decision Height (DH) light illuminate?
When the A/C is below a pilot set radio altitude.
What is the height range of the radio altimeter?
Zero to 2500ft AGL
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