Surface Clarity
The markings extending downward from the zero line on the chart are called "surface clutter." These markings are caused by wave action, boat wakes, temperature inversion and more.
The surface clarity control reduces or eliminates surface clutter signals from the display. It does this by changing the sensitivity of the receiver, decreasing it near the surface and gradually increasing it as the depth increases.
There are three levels of surface clarity available: low, medium, or high. It can also be turned off. The default level is off.
Sonar Features menu with Surface Clarity selected.
To adjust the Surface Clarity level:
1.From the Sonar Page, press MENU↓ to SONAR FEATURESENT.
2.Press ↓ to SURFACE CLARITYENT.
3.Press ↓ or ↑ to select clarity levelEXIT repeatedly.
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