Humminbird 77c Fish Finder User Manual


 
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Sonar Menu Tab
Press the MENU key twice to access the Main Menu
System and then press the RIGHT Cursor key to select
the Sonar tab.
NOTE: 83 kHz Sensitivity, Depth Lines, Surface Clutter, Noise
Filter, Max Depth, and Water Type only appear in Advanced
User Mode.
Sonar Menu
27
Zoom Level
(Sonar Zoom View Only)
Zoom Level sets the magnification level for the Sonar Zoom View, and is only
available on the X-Press™ Menu when the Sonar Zoom View is active. Use Zoom to
increase the display resolution to separate sonar returns that are very close together.
T
o adjust the Zoom Le
vel:
1. Highlight Zoom Level on the Sonar X-Press™ Menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Zoom Level
setting for the Sonar Zoom View. (2x, 4x, 6x, 8x, Default = 2x)
NOTE: The Zoom Preview Box tracks the bottom and cannot be moved by the user.
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