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The Zoom ranges available are dependent on the current depth range. In the 15' depth range,
TruZoom displays a range equal to one half the current depth range. In the, 30', 60', 120', 180'
and 240' depth ranges, TruZoom displays a range equal to one fourth the current depth range.
The box at the right side of the screen outlines the area to be zoomed.
It is not possible to use Zoom in conjunction with the 3D View, Combo View or Monster Digits
view. While these views are always available, Zoom information is only displayed on the 2D view.
The Zoom menu is not available when using a view other than the 2D view.
The Wide 3D Paramount shows Zoom range in conjunction with the full depth range. The Zoom
range is shown on the left side of the screen and full range information is shown on the right side
of the display. The area which is being enlarged by Zoom is indicated by the square box. Zoom
can either operate automatically, in which the Zoom range is constantly adjusted to show the
bottom, or manually, in which the user controls the location of the Zoom range.
"Automatic" Zoom is especially helpful when looking for structure or bottom detail. The
"Automatic" Zoom keeps the bottom in view even in quickly changing terrain. "Manual" Zoom
provides detailed information of any area from the surface to the bottom.
In "Manual" Zoom, the Zoom range does not move as the terrain changes. To operate Zoom,
press MENU repeatedly until the Zoom menu is on-screen. Three options are available: "Off"
(Factory Setting), "Auto" (Automatic bottom tracking Zoom), and "Manual" (User controlled Zoom
range). Press the DOWN ARROW once to highlight Auto. When the menu disappears, full range
information is displayed on the right as always. The square box indicates the Zoom range. In Auto
Zoom, the box will move vertically to remain in the general area of the bottom return. The left side
of the screen is a magnified view of the information seen inside the Zoom range box. The upper
and lower depth limits of the Zoom range are shown on the right side of the Zoom view. These
range numbers will change as the depth changes.
If "Manual" is selected, the Zoom display will appear and the Zoom box
will be positioned in the general area of the bottom return. In Manual
Zoom, the Zoom box will not move as the bottom depth changes. By