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- 05:58, 17 September 2024 diff hist −14 Differential system current
- 05:57, 17 September 2024 diff hist +311 N Differential R-Mode (DR-Mode) Created page with "Differential R-Mode (DR-Mode) is a differential system for R-Mode. It is an optional extension. {{IALAFooter}} {{languages|A-N Radio range}} Category:4.4 Other Radio Navigation Systems Category:Alphabetical Index Category:IALA Dictionary 1970-89 Edition Category:IALA Dictionary 2023 Revision" current
- 05:56, 17 September 2024 diff hist +409 N Ranging Mode (R-Mode) Created page with "Ranging Mode (R-Mode) is a maritime positioning and timing system that uses radio infrastructure to transmit synchronised radio signals in frequency bands which are allocated to maritime usage. {{IALAFooter}} {{languages|A-N Radio range}} Category:4.4 Other Radio Navigation Systems Category:Alphabetical Index Category:IALA Dictionary 1970-89 Edition Category:IALA Dictionary 2023 Revision" current
- 17:25, 7 February 2024 diff hist +264 N True Range Created page with "True Range – is the maximum distance, measured from the place of emission to positions, at which the information carried by the signal can be understood, in existing transmission of light, sound and motion conditions. Category:IALA Dictionary 2023 Revision" current
- 17:25, 7 February 2024 diff hist +248 N Secondary Light Created page with "Secondary Light – is a light placed on or near to a main light’s support and having a special navigational function, for example a passing light on a leading light structure or a single sector light. Category:IALA Dictionary 2023 Revision" current
- 17:25, 7 February 2024 diff hist +144 N Phase of a light Created page with "Phase of a light – is each successive element of a rhythmic light’s cycle (e.g. flash, eclipse). Category:IALA Dictionary 2023 Revision" current
- 17:24, 7 February 2024 diff hist +155 N Period of a light Created page with "Period of a light – is the time interval between the beginnings of two successive cycles of a rhythmic light. Category:IALA Dictionary 2023 Revision" current
- 17:24, 7 February 2024 diff hist +44 Oscillating Light current
- 17:24, 7 February 2024 diff hist +275 N Oscillating Light Created page with "Oscillating Light – is a light having alternating colours at sector limit, with increasing portion of coloured light proportional relating to the white sector. 400px|border Example 1 400px|border Example 2"
- 17:22, 7 February 2024 diff hist 0 N File:Oscillating light2.jpg current
- 17:21, 7 February 2024 diff hist 0 N File:Oscillating light1.jpg current
- 17:19, 7 February 2024 diff hist +133 N Obstruction Lights Created page with "Obstruction Lights – are lights marking obstructions to aircraft; they are usually red. Category:IALA Dictionary 2023 Revision" current
- 17:19, 7 February 2024 diff hist +117 N Nautophone Created page with "Nautophone – is a horn in which the membrane is activated electrically. Category:IALA Dictionary 2023 Revision" current
- 17:19, 7 February 2024 diff hist +136 N Morse Code Fog Signal Created page with "Morse Code Fog Signal – is a fog signal emitting one or more characters of the Morse Code. Category:IALA Dictionary 2023 Revision" current
- 17:18, 7 February 2024 diff hist +175 N Membrane horn Created page with "Membrane horn – is an audible signal producing its sound by means of a membrane vibrated by compressed air, steam or electricity. Category:IALA Dictionary 2023 Revision" current
- 17:18, 7 February 2024 diff hist +185 N Mean Daily Low Temperature (MDLT) Created page with "Mean Daily Low Temperature (MDLT) – is the mean value of the daily low temperature for each day of the year over a minimum 10-year period. Category:IALA Dictionary 2023 Revision" current
- 17:17, 7 February 2024 diff hist +140 N Seafarer Created page with "Seafarer - means any person who is employed or engaged or works in any capacity on board a ship. Category:IALA Dictionary 2023 Revision" current
- 17:17, 7 February 2024 diff hist +142 N Mariner Created page with "Mariner – is any person who is employed, or engaged, or works in any capacity on board a vessel. Category:IALA Dictionary 2023 Revision" current
- 17:16, 7 February 2024 diff hist +184 N Height of a Light Created page with "Height of a Light – is the vertical distance between ground level and the top of the light structure, but excluding aerials, antennas etc. Category:IALA Dictionary 2023 Revision" current
- 17:16, 7 February 2024 diff hist +143 N Hazard warning signal Created page with "Hazard warning signal – is an audible signal intended to warn ships in low visibility conditions. Category:IALA Dictionary 2023 Revision" current
- 17:15, 7 February 2024 diff hist +122 N Fog Light Created page with "Fog Light – is a light which is operational under low visibility conditions. Category:IALA Dictionary 2023 Revision" current
- 17:15, 7 February 2024 diff hist +275 N Fog Detector Light Created page with "Fog Detector Light – is a light able to detect fog automatically. There are various types; some are visible only over a narrow arc; some exhibit a blueish-white flash lasting approximately one second; others sweep back and forth. Category:IALA Dictionary 2023 Revision" current
- 17:15, 7 February 2024 diff hist +283 N Elevation of Light Created page with "Elevation of Light – is the vertical distance from the focal point of the light and mean sea level (when the tide is not appreciable on the near shore) or (elsewhere) MHW (Mean High Water) or other appropriate high water reference level. Category:IALA Dictionary 2023 Revision" current
- 17:14, 7 February 2024 diff hist +165 N Daytime Light Created page with "Daytime Light – is a light operating 24 hours a day without change of character. The intensity may be increased by day. Category:IALA Dictionary 2023 Revision" current
- 17:14, 7 February 2024 diff hist +473 N Character of a light Created page with "Character of a light – is the distinctive combination of various aspects of a light (i.e. when lit, extinguished, coloured or white) which appear regularly or rhythmically allowing it to be identified (for example, fixed, flashing, group flashing, alternating). Lights with the same character exist, but should be separated in distance, so that they are outside each nominal light range, and not adjacent, to avoid confusion. Category:IALA Dictionary 2023 Revision" current
- 17:13, 7 February 2024 diff hist +276 N Bearing (angle) Created page with "Bearing (angle) – is the limits of light sectors and areas of visibility of lights, and alignments of leading lights and directional lights, are given as bearings from seaward. The bearings of sectors are given in clockwise order. Category:IALA Dictionary 2023 Revision" current
- 17:13, 7 February 2024 diff hist +246 N Aeronautical Light Created page with "Aeronautical Light – is often a light of great intensity and elevation, principally for aircraft navigation. Because of their intensity, these may be the first lights to be seen when approaching land. Category:IALA Dictionary 2023 Revision" current
- 17:12, 7 February 2024 diff hist +194 N Aeromarine Light Created page with "a marine light in which the beam has been deflected at an angle of 10° - 15° above the horizon, so that the light is usable for aircraft navigation. Category:IALA Dictionary 2023 Revision" current
- 17:11, 7 February 2024 diff hist −69 Whistle current
- 17:10, 7 February 2024 diff hist +195 N Unmanned Light Created page with "Unmanned Light - a light which is operated automatically and may be maintained in service remotely for extended periods of time, but with routine visits for maintenance purposes. {{IALAFooter}}" current
- 17:08, 7 February 2024 diff hist +65 Sound signal current
- 17:08, 7 February 2024 diff hist +74 Siren current
- 17:08, 7 February 2024 diff hist +59 Rhythmic Light current
- 17:07, 7 February 2024 diff hist +97 Marine Aid to Navigation current
- 17:05, 7 February 2024 diff hist +46 Luminous Intensity current
- 17:05, 7 February 2024 diff hist +10 Leading Lights (G.B.) current
- 17:04, 7 February 2024 diff hist −27 Fog signal current
- 17:02, 7 February 2024 diff hist +46 Direction Light current Tag: Manual revert
- 17:00, 7 February 2024 diff hist 0 N File:Direction light 2.png current
- 16:59, 7 February 2024 diff hist −46 Direction Light Tag: Reverted
- 16:58, 7 February 2024 diff hist −26 Direction Light
- 16:54, 7 February 2024 diff hist −25 Direction Light
- 16:52, 7 February 2024 diff hist +34 Direction Light
- 16:52, 7 February 2024 diff hist +20 N File:Direction light.png current
- 16:50, 7 February 2024 diff hist +90 Direction Light
- 16:50, 7 February 2024 diff hist +153 Diaphone current
- 16:49, 7 February 2024 diff hist +11 Bell current
- 16:20, 7 February 2024 diff hist +1 Angle of Uncertainty
- 16:11, 7 February 2024 diff hist +109 Angle of Uncertainty
- 16:08, 7 February 2024 diff hist +604 N Situational Awareness Created page with "Situational awareness refers to the ability to identify, process, and comprehend the critical elements of information about what is happening in the surrounding environment at any given time. It involves being aware of what is happening around you and understanding how that information, events, and your own actions will impact your goals and objectives, both immediately and in the near future. Source: VTS54 Task 1.1.3(a) - Develop guidance on the Implications of Mariti..." current
