•
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.
(Off, Low
(L), Medium (M), High (H), Default = Off)
DI Zoom
(with active cursor only)
Settings: Off, 2x, 4x, 6x; Default = Off
DI Zoom
sets the magnification level for the Down Imaging View. Use DI Zoom to see more detail
in the bottom sonar returns that might be displayed close together, such as those caused by fish
suspended close to the bottom or within structure.
NOTE:
The cursor must be active for the DI Zoom feature to work in the Down Imaging View. See
Views:
Down Imaging View
for more information.
Upper Range
(Advanced)
Settings: Various, see below.
Upper Range
sets the shallowest depth range that will be displayed on the Down Imaging Views.
Upper Range is often used with Lower Range.
NOTE:
A minimum distance of 10 feet will be maintained between the Upper and Lower Range
regardless of the manual settings entered.
The available Upper Range settings are determined by your Humminbird model as follows:
•
HELIX 5 DI:
0 to 590 feet or 0 to 180 meters; Default = 0
•
HELIX 7 DI:
0 to 590 feet or 0 to 180 meters (International Models only); Default = 0
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.
51
Down Imaging X-Press Menu
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