Humminbird Wide One Deep Install Manual page 17

The Sensitivity Menu allows you to "bias" this automatic setting up or down based on personal
preference. You can select a bias of +5 or –5, for 11 different bias settings. A bias setting of "0" has no
effect on the automatic function. A +3 setting selects a sensitivity setting three steps higher than the unit
would normally select, so even the smallest returns are displayed on-screen.
A setting of –2 sets the sensitivity two steps below what the unit would normally select, so only the largest
targets or other returns are displayed.
Range
The Wide One Deep adjusts the depth range automatically, so the bottom return is displayed at the
bottom 1/3 of the display. This leaves the top 2/3 to display anything between the surface and the bottom.
As your boat moves over deeper or shallower water the unit adjusts the depth range of the display to
keep the bottom return in the same general area on the screen.
You may, however, choose to control this range adjustment manually. By pressing ENTER, you can
select manual operation, meaning the unit will no longer adjust the depth range automatically. The depth
range selected is controlled by the UP and DOWN arrow buttons. The depth ranges are 0-15', 30', 60',
120', 180', 240', 360', 480', & 600'.
If you alter the depth range, Manual operation is automatically selected and the area beneath the bottom
will no longer be blackened in.