Sonar Zoom View - Humminbird 688ci HD DI Operation Manual

Sonar Zoom View

Sonar Zoom View provides a magnified view of the bottom and structure. The
Sonar Zoom View makes it easier to see separate sonar returns that would
usually be displayed close together, such as those caused by fish suspended
close to the bottom or within structure.
• The Zoom Level, or magnification, is displayed in the lower left corner of the
display. Press the + or – ZOOM keys to increase or decrease the zoom level.
• The Zoomed View is displayed on the left side of the screen. As the
depth changes, the zoomed view updates automatically.
• The Full Range View is displayed on the right side of the screen. The
Full Range View includes the Zoom Preview Box, which shows where
the zoomed view is in relation to the full range view.
• The Upper and Lower Depth Range numbers indicate the high and low
range of the water which is being viewed.
• Freeze Frame - Use the 4-WAY Cursor Control key to freeze the display
and move the cursor over a sonar return. The depth of the sonar return
will be displayed at the bottom of the screen in the cursor information box.
Depth
Zoomed View
Zoom Level
NOTE: Digital depth is displayed in the upper left hand corner. The digital readouts
in the Sonar Zoom View cannot be customized; therefore, information such as
water temperature and voltage are unavailable in the Sonar Zoom View.
Sonar Zoom View
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Upper Depth Range,
Full Range View
Upper Depth Range,
Zoom View
Full Range View
Zoom Preview Box
Lower Depth Range,
Zoom View
Lower Depth Range,
Full Range View
Views