Sonar View Chart/Sonar Combo View Chart View Bird’s Eye View Accessory Diagnostic Test View View Start-Up Options Menu Start-Up Options Menu Start-Up Options Menu Big Digits View Self Test View...
Noise Filter (Advanced) Settings: Off, Low, Medium, High1, High2, High3, Default = Low Noise Filter adjusts the sonar Noise Filter to limit interference on the display from sources such as your boat engine, turbulence, or other sonar devices.