Humminbird 1158c Combo, Installation And Operation Manual

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Surface Clutter
Settings: Low = 1 to High = 10; Default = 5
Surface Clutter adjusts the filter that removes surface clutter noise caused by algae and
aeration. The lower the setting, the less surface clutter will be displayed.
SwitchFire™
Settings: Clear Mode, Max Mode; Default = Clear Mode
SwitchFire™ controls how the sonar returns are displayed in the Sonar Views.
Choose Max Mode to see only raw sonar returns on the display. When Max Mode is selected,
you will see the maximum sonar information available within the transducer beam, so more fish
arches and better jig tracking are shown.
Choose
Clear Mode
to see less clutter and more fish size accuracy on the display. When Clear
Mode is selected, the clutter is filtered, and sonar returns are interpreted to provide more details
about the objects within the transducer beam, regardless of their location. In other words, a
large arch on the display means a large fish has been detected.
Surface
Clutter
165
Sonar Menu Tab