B&G Vulcan Series, Operator'S Manual

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Note:
We recommend that you use
Auto contrast
.
Palettes
You can select between several display palettes optimized for a
variety of fishing conditions.
View
You can set up the StructureScan page as a DownScan image, left
only, right only, or left/right side scanning.
Select the view menu option and then the view you want displayed.
Pausing the StructureScan image
You can pause the StructureScan image, allowing you to examine
the structures and other images in more depth and detail.
This function is useful when you need to position a waypoint
exactly on the StructureScan image, and if you are using the cursor
to measure a distance between 2 elements on the image.
Advanced StructureScan settings
TVG
Wave action, boat wakes and temperature inversions can cause
onscreen clutter near the surface. The TVG (Time Variable Gain)
option reduces surface clutter by decreasing the sensitivity of the
receiver near the surface.
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Note:
For optimal image return and clarity in most conditions,
the default value is set to a low value.
Flipping the Structure image left/right
If required, the left/right SideScanning images can be flipped to
match the direction of the transducer installation.
Range Lines
Range lines can be added to the image to make it easier to estimate
depth (Downscan) and distance (SideScan).
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StructureScan | Vulcan Series Operator Manual