Zoom Level (Sonar Zoom View Only); Bottom Lock - Humminbird 747c Operation Manual

531526-1_A - 747c_&_777c2_Man_Eng.qxp
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 and
Bottom Lock is off. 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™ 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.
Bottom Lock changes the mode of the Zoomed view in the Sonar Zoom View.
Bottom Lock continuously graphs the bottom at a constant point on the display
regardless of changes in depth. This "flattens" out the bottom contour, but is
effective at showing fish on or near the bottom.
To turn on Bottom Lock:
1. In the Sonar Zoom View, highlight Bottom Lock on the Sonar X-Press™
Menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Bottom Lock setting to on. (Off, On, Default = Off)
10/2/2006
Zoom Level
(Sonar Zoom View only)

Bottom Lock

(Sonar Zoom View only)
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