Difference between revisions of "Excess attenuation"
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Latest revision as of 01:12, 25 February 2009
The difference between the total reduction in sound pressure level during the propagation of a sound and that due to the spherical divergence loss.
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