Humminbird 385ci, 385CI DI COMBO Upper Range, Imaging Sensitivity, Imaging Sensitivity, Increase the Imaging Sensitivity

Imaging Sensitivity

Settings: Auto, 1 to 20, where Low = 1, High = 20;

Default = 10

Imaging Sensitivity controls how the sonar returns are displayed on the Down Imaging™ Views.

Increase the Imaging Sensitivity to reveal weaker returns that may be of interest, especially in very clear water or greater depths. A high imaging sensitivity setting shows more sonar returns from small baitfish and suspended debris in the water; however if the sensitivity is adjusted too high, the display may become too cluttered.

Decrease the Imaging Sensitivity to eliminate the clutter from the display that is sometimes present in murky or muddy water. If the sensitivity is adjusted too low, the display may not show many sonar returns that could be fish.

Upper Range

(Advanced)

Settings: 0 to 990 feet or 0 to 397 meters [International models only], Default = 0 ft

Upper Range sets the shallowest depth range that will be displayed on the Down Imaging™ Views. Upper Range is often used with Lower Range.

For example, if you are only interestedin the area between 20 and 50 feet deep, you should set the Upper Depth Range to 20 and the Lower Depth Range to 50. The Sonar View will then show the 30 foot area between 20 and 50 and will not show the surface or the bottom (assuming the bottom is deeper than 50 feet). Greater detail will be shown for the area between 20 and 50 feet.

NOTE: A minimum distance of 10 feet will be maintained between the Upper and Lower Range regardless of the manual settings entered.

77Down Imaging™ X-Press™ Menu