Decca Drift

From International Dictionary of Marine Aids to Navigation
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4-4-155

Drift (in Decca)

A slow change of reading on the Decometer due to random changes of phase produced in the Decca receiving equipment, which change can be corrected by a method of referencing.




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