Humminbird HELIX 5 SERIES Operation Manual page 100

DI Enhance allows you to adjust your Down Imaging View in the following categories: Sensitivity,
Contrast, and Sharpness.
Whether you're searching the Down Imaging data for fish or certain bottom contour, the most
effective settings will vary with the situation. The display will update as you adjust each category.
DI Enhance can also be used during Recording Playback (see Views: Snapshot and Recording
View).
• Sensitivity: Controls how much detail is shown on the display. When operating in very
clear water or greater depths, increased sensitivity shows weaker returns that may be of
interest. Decreasing the sensitivity eliminates the clutter from the display that is
sometimes present in murky or muddy water. (1 to 20, where Low = 1, High = 20;
Default = 10)
NOTE: The Sensitivity can be adjusted from the DI Enhance dialog box or the Down Imaging X-Press
Menu. The Sensitivity setting is provided here so that you can easily adjust the Down Imaging data with
the other settings. See Down Imaging X-Press Menu: Down Sensitivity for more information.
• Contrast: Accents the light and dark parts of the Down Imaging data to provide greater
definition. (1 to 20, Default = 10)
• Sharpness: Filters the view and sharpens the edges of the Down Imaging data. (Low (L),
Medium (M), High (H), Default = Off)
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 interested in 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 Down Imaging 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), and will show greater detail for that 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.
Down Imaging X-Press Menu
DI Enhance
Settings: Press the RIGHT Cursor key.
DI Enhance Submenu
Upper Range
(Advanced, Down Imaging Views only)
Settings: 0 to 590 ft, 0 to 237 m (International Models only); Default = 0
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