Si Enhance; Si Range - Humminbird 800 series Operation Manual

SI Enhance

Settings: Press the RIGHT Cursor key.
SI Enhance allows you to adjust your Side Imaging® View in four categories:
Sensitivity, Contrast, Sharpness, and Contour Mode.
Whether you're searching the Side 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. SI Enhance can also be used during
Recording Playback (see Snapshot and Recording View).
SI Enhance Submenu
• 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 SI Enhance dialog box or the Side
Imaging® X-Press™ Menu. The Sensitivity setting is provided here so that you can
easily adjust the Side Imaging® data with the other settings. See Side Imaging®
X-Press™ Menu: SI Sensitivity for more information.
Side Imaging® X-Press™ Menu
• Contrast: Accents the light and dark parts of the Side Imaging® data
to provide greater definition. (1 to 20, Default = 10)
• Sharpness: Filters the view and sharpens the edges of the Side
Imaging® data. (Low (L), Medium (M), High (H), Default = Off)
• Contour Mode: Controls how the water column is displayed in the
Side Imaging® Views. In the normal display with the Contour Mode
off, the water column is displayed on the view. The location of a
target on the display is based on the slant range to the target.
When Contour Mode is turned on, the bottom is graphed at a
constant point on the display, regardless of changes in depth. The
Side Imaging® beams are divided by a vertical line. The water column
is removed from the view, which allows the display to show targets
at their linear horizontal distance. The location of a target may be
easier to interpret when the water column is removed. (Off, On;
Default = Off)
NOTE: If both SI Range Lines and Contour Mode are turned on, the SI Range
Lines will remain on the display, but the individual range numbers are not
available (see Sonar Menu Tab: SI Range Lines).
SI Range sets the deepest range that will displayed in the Side Imaging®
views. The range must be set manually.
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SI Range

Settings: Auto, 6 to 360 feet, or 2 to 120 meters
[International Models only], Default = 150 feet, 50
meters