Earth system

From International Dictionary of Marine Aids to Navigation
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Alternative term: Ground system (U.S.A.)

A conductor or system of conductors, often large compared with the dimensions of the antenna, laid on or in the ground and not normally insulated from it.

Reference: B.S.

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