Humminbird Matrix 20 - Manual (Page 32)

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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 TM Menu when the Sonar Zoom View is active. Use Zoom to
increase the display resolution to separate sonar returns that are very close together.
To adjust the Zoom Level:
1. Highlight Zoom Level on the Sonar X-Press TM 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.