Revision as of 11:28, 23 October 2019 by ArxioWikiSysop
The one characterizing feature of a navigation buoy, eg .: shape, color, arrangement, symbol, logo, number, arrangement, sequence and duration (time course) and color of light phenomena.; Episode, duration and frequency of sound waves or electromagnetic waves in the visible range. With beacons the "identifier" is mainly understood as the timing of the appearance of light.