Humminbird HELIX Series Operation Manual page 57

Select a Range of the Palette (Contrast)
Contrast allows you to choose a range of the Sonar Colors palette to display sonar returns. To see the current palette, display the
Color Bar on the Sonar View.
NOTE: To display or hide the Color Bar, see Show/Hide Data on the Sonar View.
When Contrast is set to 20 (default), the entire Sonar Colors palette (represented by the Color Bar) is used to display weak and
strong sonar returns. As you increase the Contrast, the top range of the Color Bar is used to display all sonar returns (whether weak
or strong). As you decrease the Contrast, the bottom range of the Color Bar is used to display all sonar returns (whether weak or
strong).
1. Sonar X-Press Menu: With a Sonar View displayed on-screen, press the MENU key once.
2. Select Contrast.
3. Press the RIGHT or LEFT Cursor keys to move the selection higher or lower on the color bar.
Adjusting the Contrast
57
The high Contrast
setting uses the
top portion of
palette.
color bar
Sonar (2D)