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What is the frequency band used by the ACLS?

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What is the frequency band used by the ACLS?

(a) Ka band

(b) S band

(c) C band

(d) E band

This question was posed to me in an international level competition.

My enquiry is from Carrier Landing Systems topic in portion Landing Systems & Air-Traffic Management of Avionics

1 Answer

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Best answer
The correct choice is (a) Ka band

To explain: Two electronic instrument landing systems are found o all large U.S. carriers. Th ACLS involves two identical conically scanned Ka band radars set aft of the island about 125 and 135ft above the water line.

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