Humminbird 587ci, 597ci Shaded Depth, Chart Select, Spot Soundings, Shaded Depth, Chart Select, Spot Soundings, [International Units only], To change the Shaded Depth setting:

Spot SoundingsSpot Soundings allows you to display or hide spotsoundings, which are depth measurements shown on the chart.

NOTE: Spot Soundings are only available with optional-purchase MMC/SD cards.

To change the Spot Soundings setting:1.Highlight Spot Soundings on the Navigation main menu.

2.Press the L EFT or RIGHT Curs or keys to chan ge t he Spo t Soundings setting. (Hidden, Visible, Default = Hidden)

Shaded Depth

Shaded Depth allows you to c hange the depth used for shading on the chart views.

To change the Shaded Depth setting:1.Highlight Shaded Depth on the Navigation main menu.

2.Press the LEFT or RIGHT Cursor keysto change the Shaded Depth setting.

(Off, 1 to 180 Feet, or 1 to 6 0 M eters [International Units only] , Default = 15 ft, 5 m)

Chart Select

Chart Select allows you to choose which chart to use if you ha ve built-in charts or a map card. If you select Auto, you unit will select a chart automatically.

To activate or de-activate Chart Select:1.Highlight Chart Select on the Navigation main menu.

2.Press the L EFT or RIG HT Cursor keys to select which chart to use (Default = Auto)

Navigation Menu Tab 92