Description
Layers are used to calculate various values for a specific range in the water column. The calculated values can be displayed in the Numerical information field. All single target detections which are displayed in the Single Target Position information field and the Single Target Histogram information field are detected within a layer.
All calculated data for the layers are displayed in Numerical information field. By creating a new layer, the new layer is always the “active” layer and the data is displayed in red colour. All data shown in the information fields for all the channels will be calculated from the echo data within the selected layer.
NoteThe Single target position and histogram information field will display targets from within the active layer.
NoteThe layers are a key function of the ME70. During normal operation, make sure that you are aware of the layer(s) that you have established, and that the requested layer
is activated to feed information to the information fields.
You can create as many depth layers as you want on the ME70. By default, any layer you create will be applied to all echogram views simultaneously. The layers may overlap if necessary, and you can control how much they overlap each other.
When you are working with layers, the following functionality is available.
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To create a new layer, use the New Layer dialog box. The New Layer dialog box can be opened from the shortcut menus and from the Active menu.,
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The shortcut menus can be used to create a new layer. Right-click in the view to open the shortcut menu.,
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In the echogram, you can click between the layer lines in the echogram view to select ("activate") it. The active layer is shown with red border lines.NoteThe information shown in your information fields only reflect the echo data from the currently "active" layer.
If you wish your information fields to show data from the entire water column, you must either click "outside" the layer(s)
in your echogram to deselect all of them. This will "activate" the default background layer. Another option is to simply delete all the layers.
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By pulling the red lines showing the active layer (A) in the echogram you may change the depth range of the active layer. |
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Once a depth layer has been made you can change its properties using the Layer Properties dialog box. If you only wish to change the range settings, you can also click and drag the line(s) in the echogram view. The lines in the echogram will reflect the changes you make, but these will disappear to the left after some time. Observe that vertical lines are drawn in the echogram to identify the start of each calculation interval. The Layers Properties dialog box is locate on the shortcut menus and on the Active menu. |
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A single layer can be deleted if you do not need it any longer. The shortcut menus can be used to delete the active layer. Right-click in the view to open the shortcut menu. The Delete layer dialog box is locate on the shortcut menus and on the Active menu. |
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When you record raw data, the layers you have defined are not included. This means that you can also use the layer functionality during replay. |
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Each of the depth layers can be used to measure the background (ambient) noise in the water column. |
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The Numerical information field is the best tool for controlling your depth layers. All layers are listed, even those that may be located outside your current echogram presentation. The different layers can easily be activated by clicking the list of numerical data.NoteLayers outside of the visual range of the echogram will still be active.
This may require longer sample range and slower ping rate than you would expect.
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