https://www.iala.int/wiki/dictionary/index.php?action=history&feed=atom&title=Oscillating_Boundary 2026-05-07T05:08:08Z Revision history for this page on the wiki MediaWiki 1.41.5 https://www.iala.int/wiki/dictionary/index.php?title=Oscillating_Boundary&diff=9931&oldid=prev 2024-02-03T12:11:42Z

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Minsuids https://www.iala.int/wiki/dictionary/index.php?title=Oscillating_Boundary&diff=8212&oldid=prev 2016-07-08T16:56:06Z

<p>Created page with &quot;An Oscillating Boundary in a sector light is a method of giving more information of position near the sector boundary to the mariner by creating a light character with alterna...&quot;</p> <p><b>New page</b></p><div>An Oscillating Boundary in a sector light is a method of giving more information of position near the sector boundary to the mariner by creating a light character with alternately flashing colours.<br /> <br /> [[Image:OscillatingBoundary1.jpg|none|frame|400px|figure 1]]<br /> <br /> <br /> On a position on line 1 (figure 1) the vessel is far outside of the safe channel and the mariner sees alternating flashes with a long green duration and a short white. Approaching the axis the flash duration of the green flashes will decrease whereas the white flashes increase, so the flash duration of the white flashes becomes longer than the green ones (line 2, figure 1). Finally when the safe sector, line A, is reached, only a fixed white light is seen.<br /> <br /> [[Image:OscillatingBoundary2.jpg|none|frame|right|400px|figure 2]]<br /> <br /> <br /> Source: ENG3, Guideline 1041<br /> <br /> {{languages|Codes on Alerts and Indicators}}<br /> [[Category:2.2 Optical Apparatus]]<br /> [[Category:Alphabetical Index]]<br /> [[Category:IALA Dictionary 2016 Revision]]<br /> [[Category:Approved by DWG]]</div>

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