Humminbird 161 - Manual (Page 57)

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Zoom Width
Zoom Width adjusts the width of the Zoom window on
the Sonar Zoom View.
To change the Zoom Width Setting:
1. Highlight Zoom Width on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Zoom Width
setting. (Narrow, Medium, Wide, Default = Wide)
Depth Lines
(Advanced)
Depth Lines divide the display into four equal sections that are separated by three
horizontal depth lines. The depth of each line is displayed along the depth scale. You can
either turn Depth Lines On or Off. The Depth Lines menu choice is available when User
Mode is set to Advanced (see Setup Menu Tab: User Mode).
To change the Depth Lines setting:
1. Make sure you are in Advanced User Mode, then highlight Depth Lines on the
Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to turn the Depth Lines setting
On or Off. (Off, On, Default = On)
Depth
Lines
Depth Lines