3 Basic Operation of ECDIS 3-115
ECDIS
3.17 Monitoring Dragging Anchor
A circle can be drawn to monitor a dragging anchor at the user-specified position. When the own ship
moves and part of outline of the own ship goes out of this circle, a “Dragging anchor” alarm occurs.
A dragging anchor monitoring circle can be created with the own ship as the center or with the position at
which you left-click on the chart as the center.
1) In the normal menu
Select [MENU] - [(4) Ownship/Track] - [(2) Anchor Watch] - [(1) Create Monitoring Circle] in
that order.
The “Monitoring Dragging Anchor” panel opens.
By default, the heading forward position is displayed as the center of the circle. Left-clicking
on the chart can also set the position as the center of the dragging anchor monitoring circle.
2) Enter the radius of the dragging anchor monitoring circle (10 to 999 m).
3) Left-click the [OK] to close the panel.
The dragging anchor monitoring circle is displayed.
• To re-set a dragging anchor monitoring circle, cancel the monitoring circle beforehand.
How to close the dragging anchor monitoring circle:
1) In the normal menu
Select [MENU] - [(4) Ownship/Track] - [(2) Anchor Watch] - [(2) Clear Monitoring Circle] in
that order.
The dragging anchor monitoring circle is cleared.
Occurrence of “Dragging anchor” alarm
The dragging anchor monitoring circle
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