ExampleWhen you are manoeuvring close to the coastline, or in otherwise working in confined waters, you may wish to avoid shallow
waters and reefs. To keep track of potentially dangerous places, you can start position tracking.
Each marker is identified with its geographical location. Once an echo has been provided with a marker in the display presentation it is regarded as an object.
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To start position tracking: |
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Place the cursor on the echo from a potentially dangerous shallow or reef. |
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Press Position Track on the Operating Panel. (Mk1/Mk2)
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Press Place Marker on the Operating Panel. (Mk3) |
or:
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Place the cursor on the echo from a potentially dangerous shallow or reef. |
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Right-click to open the shortcut menu. |
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In the object list, select the object line to activate the control buttons for that particular object. |
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Select Priority to give the currently selected object a priority status.
If another object has this priority, the status is transferred to the new object.
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The marker is shown as a small triangle with or without a short identifying label. Once an echo has been provided with a marker in the display presentation it is regarded as an object.
The position track locks on a position defined by its latitude, longitude and depth. The bearing and tilt settings are automatically adjusted to compensate for the movements of your vessel. The bearing line is automatically locked on the object to reflects its bearing. The marker is stationary. If the echo moves in the display presentation the marker will not follow.
NoteIf you change the tilt and bearing settings manually, the position track is disabled.
The priority is identified with a "P". You can only give priority status to one object. If you create a new marker and give this priority, the position track is disabled. The same applies if you start a new target track.
Relevant information about the tracked object can be found in the bottom left corner of the view. If you think the text is small and hard to read, double-click on the text field. This will increase the text size.
Deleting a marker
There are two ways to delete a marker. You can use the shortcut menu, or select Delete in the Objects menu.
TipYou can delete a single marker, or multiple markers simultaneously, by selecting Delete in the Objects menu. If you use Delete Marker on the shortcut menu you can only remove one marker at a time.
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Place the cursor on the marker you wish to delete. |
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Right-click to open the shortcut menu. |
or:
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In the list of objects, check the box for the object you wish to delete. Check Select All to select all the markers in the list.
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Objects menu
The Objects menu provides a list of all current objects. This includes all types of objects including those classified as targets.
TipThe Objects menu provides additional functionality.
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Select the check box on the left side of the object to mark it for deletion, or to save it. |
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Select the object line to activate the control buttons, and to retrieve information about the object. You can also click on the marker in the SN90 presentation to activate the control buttons. The selected marker is then shown with thicker lines. |
Visual Objects menu
The Visual Objects menu controls which graphical elements that are shown in the different views. These graphic elements include markers, vectors and targets that are tracked. The majority of the functions are "on/off" buttons to enable or disable these graphic elements in the various views.