Humminbird 597ci - Manual (Page 102)

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Spot Soundings
Spot Soundings allows you to display or hide spot
soundings, 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 LEFT or RIGHT Cursor keys to change the Spot Soundings
setting. (Hidden, Visible, Default = Hidden)
Shaded Depth
Shaded Depth allows you to change 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 keys to change the Shaded Depth setting.
(Off, 1 to 180 Feet, or 1 to 60 Meters [International Units only],
Default = 15 ft, 5 m)
Chart Select
Chart Select allows you to choose which chart to
use if you have 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 LEFT or RIGHT Cursor keys to select which chart to use
(Default = Auto)
Navigation Menu Tab