Identification signal

From International Dictionary of Marine Aids to Navigation
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4-2-020

A letter or group of letters in morse code or some other combination of dots or dashes or both introduced into the transmission to identify the beacon. In some cases two tones are employed.




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