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Advanced StructureScan settings
Surface clarity
Wave action, boat wakes and temperature inversions can cause on-
screen clutter near the surface.
The surface clarity option reduces surface clutter by decreasing the
sensitivity of the receiver near the surface.
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Note: By default, surface clarity is set to Low, for optimal
image return and clarity.
Noise rejection
Signal interference from bilge pumps, engine vibration and air
bubbles can clutter the sonar screen. The noise rejection option
filters the signal interference and reduces on-screen clutter.
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Note: By default, Noise rejection is set to on, for optimal
signal returns and clarity.
Flipping the Structure image left/right
If required, the left/right SideScanning images can be flipped to
match the corresponding side of your vessel if the transducer has
been mounted backward.
Range Lines
Range lines can be added to the image to make it easier to estimate
depth (Downscan) and distance (SideScan).
Preview
You can turn off sonar history preview, have it always shown at the
top of the screen, or have it appear only when the cursor is active.
By default, the sonar history preview appears when the cursor is
active.
Recording StructureScan data
You can Log sonar data and save the file internally in the HDS
Gen3 unit, or onto a microSD card as described in "Recording sonar data"
on page 68.
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StructureScan | HDS Gen3 Operator Manual