Angular deviation loss

From International Dictionary of Marine Aids to Navigation
Revision as of 01:11, 25 February 2009 by Oferiks (talk | contribs) (1 revision)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

3-1-140

The difference in level, expressed in decibels, of the emission or response on the principal axis of a sound source or receiver and the emission or response in a specified direction.




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

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