From International Dictionary of Marine Aids to Navigation
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Scan (of a radar antenna)

The systematic variation of the beam direction for search.

Note: In marine applications scanning usually takes place continuously through 360 degrees

Reference: B.S. (modified)

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

Centre of buoyancy


International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM