Lowrance HDS-12 Carbon Operators Manual EN - Page 86

Stop sonar, Advanced StructureScan settings, Surface clarity, Noise rejection

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Stop sonar Use the Stop sonar menu option when you want to turn off the StructureScan transducer, but not turn off the unit. Advanced StructureScan settings Surface clarity Wave action, boat wakes and temperature inversions can cause onscreen clutter near the surface. The surface clarity option reduces surface clutter by decreasing the sensitivity of the receiver near the surface. Ú 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. Ú 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 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). 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. 86 StructureScan | HDS Carbon Operator Manual

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Stop sonar
Use the
Stop sonar
menu option when you want to turn off the
StructureScan transducer, but not turn off the unit.
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.
Ú
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.
Ú
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 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).
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.
86
StructureScan
| HDS Carbon Operator Manual