SN.1/Circ.243/Rev.2 Annex 1, page 14
Area notice
Air gap
Area notice point symbol should be presented as a box with "AN" inscribed inside it. The box should be centred at the position derived from Area notice message. The box should be drawn using a thick solid line style and should be the same basic colour as the AIS AtoN symbol.
Area notice area symbol should be presented as a series of lines bounding a geographic area. Connecting lines should be drawn using the thin dashed line style and using the same basic colour as the symbol itself. The area should be filled with a sparse pattern of Area notice point symbols. Drawing priority of Area notice symbol is below Maritime Safety Information (MSI).
Note that the source of the area notice may be AIS ASM function identifier 22 or 23 (SN.1/Circ.289), etc.
Air gap symbols consist of two parts:
•the air gap symbol
•the air gap gauge symbol
The air gap symbol should be presented as a diamond with "A" inscribed inside it. The diamond should be centred at the position derived from the site location report binary message. The diamond should be drawn using a thin solid line style and using the same basic colour as AIS AtoN.
The air gap gauge part of the symbol should be used to represent availability of air gap information. If air gap is not available then there should be no air gap gauge symbol. The air gap gauge symbol should be drawn using a thick solid line style, transparent fill and using the same basic colour as AIS AtoN.
Note that the source of the air gap/air draught information may be AIS ASM function identifier 26 (SN.1/Circ.289), etc.
I:\CIRC\SN\01\SN.1-Circ.243-Rev.2.docx
SN.1/Circ.243/Rev.2
Annex 1, page 15
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The environmental report symbol |
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should be presented as a diamond with |
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"ENV" inscribed inside it. The diamond |
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should be centred at the position |
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derived from the site location report |
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binary message. The diamond should |
Environmental |
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be drawn using a thin solid line style |
report |
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and using the same basic colour as AIS |
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AtoN. |
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Note that the source of environmental |
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information may be AIS ASM function |
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identifier 26 or 31 (SN.1/Circ.289), etc. |
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I:\CIRC\SN\01\SN.1-Circ.243-Rev.2.docx
SN.1/Circ.243/Rev.2
Annex 1, page 16
Table 5.1: Improved symbols for portrayal of AIS Aids to Navigation (AIS AtoN)
Type of AIS AtoN |
Symbol |
Symbol |
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Description |
(Type of code in AIS msg. 21) |
(Physical) |
(Virtual) |
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Solid diamond |
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Portrayal when indication of type |
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(Shown |
with chart symbol. Chart |
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symbol not required for radar.) |
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is not selected |
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Note: Applicable only for Physical |
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AIS AtoN |
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Default, type not specified |
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Physical: Solid diamond |
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(0) |
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(Shown with chart symbol. Chart |
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Reference point (1) |
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symbol not required for radar.) |
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Light, without sectors (5) |
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Virtual: Dotted diamond with cross |
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Light, with sectors (6) |
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hair centred at reported position |
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Leading Light Front (7) |
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Leading Light Rear (8) |
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Solid diamond |
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Fixed structure |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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offshore/obstruction (3) |
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Note: Fixed structure |
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Light Vessel/LANBY/Rigs |
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offshore/obstruction and Light |
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(31) |
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Vessel/LANBY/Rigs versions are |
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not applicable for Virtual AIS AtoN |
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Solid diamond with double circle of |
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black inner circle on the top of |
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Racon (2) |
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diamond |
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Note: |
Racon version is not |
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applicable for Virtual AIS AtoN |
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Physical: Solid diamond with cross |
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on the top of diamond |
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Emergency Wreck Mark |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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(4) |
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Virtual: Dotted diamond with cross |
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hair centred at reported position and |
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cross on the top of diamond |
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Physical: Solid diamond with 2 |
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triangles, one above the other, point |
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upward, on top of diamond |
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Beacon, Cardinal N (9) |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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Floating, Cardinal Mark N |
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Virtual: Dotted diamond with cross |
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(20) |
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hair centred at reported position and |
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2 triangles, one above the other, |
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points upward, on the top of |
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diamond |
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I:\CIRC\SN\01\SN.1-Circ.243-Rev.2.docx
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SN.1/Circ.243/Rev.2 |
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Annex 1, page 17 |
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Type of AIS AtoN |
Symbol |
Symbol |
Description |
|
(Type of code in AIS msg. 21) |
(Physical) |
(Virtual) |
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Physical: Solid diamond with 2 |
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triangles, one above the other, base |
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to base, on the top of diamond |
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Beacon, Cardinal E (10) |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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Floating, Cardinal Mark E |
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Virtual: Dotted diamond with cross |
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(21) |
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hair centred at reported position |
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and 2 triangles, one above the |
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other, base to base, on the top of |
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diamond |
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Physical: Solid diamond with 2 |
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triangles, one above the other, point |
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downward, on the top of diamond |
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Beacon, Cardinal S (11) |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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Floating, Cardinal Mark S |
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Virtual: Dotted diamond with cross |
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(22) |
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hair centred at reported position |
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and 2 triangles, one above the |
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other, points downward, on the top |
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of diamond |
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Physical: Solid diamond with 2 |
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triangles, one above the other, point |
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to point, on the top of diamond |
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Beacon, Cardinal W (12) |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
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Floating, Cardinal Mark W |
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Virtual: Dotted diamond with cross |
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(23) |
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hair centred at reported position |
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and 2 triangles, one above the |
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other, point to point, on the top of |
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diamond |
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Physical: Solid diamond with |
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Beacon, Port hand (13) Beacon, |
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rectangle, short side up, on the top |
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of diamond (Shown with chart |
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Preferred |
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symbol. Chart symbol not required |
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Channel Port hand (15) Port |
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for radar.) |
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hand Mark (24) |
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Virtual: Dotted diamond with cross |
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Preferred Channel Port hand |
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hair centred at reported position and |
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(26) |
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rectangle, short side up, on the top |
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of diamond |
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Beacon, Starboard hand |
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Physical: Solid diamond with |
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triangle, points upward, on the top |
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(14) |
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of diamond (Shown with chart |
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Beacon, Preferred |
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symbol. Chart symbol not required |
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Channel Starboard hand |
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for radar.) |
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(16) |
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Virtual: Dotted diamond with cross |
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Starboard hand Mark (25) |
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hair centred at reported position |
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Preferred Channel |
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and triangle, points upward, on the |
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Starboard hand (27) |
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top of diamond |
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I:\CIRC\SN\01\SN.1-Circ.243-Rev.2.docx
SN.1/Circ.243/Rev.2
Annex 1, page 18
|
Type of AIS AtoN |
|
Symbol |
Symbol |
Description |
|||
(Type of code in AIS msg. 21) |
|
(Physical) |
(Virtual) |
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|||
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Physical: Solid diamond with 2 |
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circles, one above the other, on the |
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Beacon, Isolated danger |
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top of diamond (Shown with chart |
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symbol. Chart symbol not required |
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(17) |
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for radar.) |
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Isolated danger (28) Beacon, |
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Virtual: Dotted diamond with cross |
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Safe |
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hair centred at reported position |
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and 2 circles, one above the other, |
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on the top of diamond |
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Physical: Solid diamond with circle |
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on the top of diamond |
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Beacon, Safe water (18) Safe |
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(Shown with chart symbol. Chart |
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symbol not required for radar.) |
|||
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Water (29) |
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|||
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Virtual: Dotted diamond with cross |
|||
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hair centred at reported position |
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and circle on the top of diamond |
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Physical: Solid diamond with bold |
|
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outlined "X" on the top of diamond |
|
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(Shown with chart symbol. Chart |
|
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Beacon, Special mark (19) |
|
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symbol not required for radar.) |
||
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Virtual: Dotted diamond with cross |
|||
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Special Mark (30) |
|
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|||
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hair centred at reported position |
|||
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||
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and bold outlined "X" on the top of |
|
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diamond |
|
|
Table 5.2: Portrayal of AIS AtoN indicating off position or failure |
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Type of failure condition |
|
Symbol |
|
|
Description |
|
|
|
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(Physical) |
|
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||
|
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|
|
Failure is indicated using yellow caution colour for |
|
||
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the basic diamond part of the symbol with cross |
|
||
|
AIS AtoN indicating to be |
|
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hair centred at reported position and for text "Off |
|
||
|
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Posn" in top of the Physical AIS AtoN. |
|
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in |
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|||
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Off Position |
|
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|
Note: Physical AIS AtoN indicates realtime EPFS |
|
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position of drifting AtoN (obstacle). |
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Failure is indicated using yellow caution colour with |
|
||
|
AIS AtoN indicating Lights |
|
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text "Unlit" in top of the Physical AIS AtoN. |
|
||
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failure |
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Failure is indicated using yellow caution colour with |
|
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|
AIS AtoN indicating Racon |
|
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|
text "Racon err" in top of the Physical AIS AtoN. |
|
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failure |
|
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I:\CIRC\SN\01\SN.1-Circ.243-Rev.2.docx