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USING THE 450TX
MENU FUNCTIONS
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.
The 450TX 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. |
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“Automatic” Zoom is especially Upper Zoom Limit | ||||||||||||||||||||||||||
helpful | when looking for |
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structure or bottom detail. The |
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“Automatic” Zoom keeps the |
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bottom in view even in quickly |
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changing | terrain. | “Manual” |
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Zoom | provides | detailed |
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information of any area from |
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the surface to the bottom. |
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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 or twice to highlight Manual. If Manual is selected a submenu
will appear allowing manual zoom range adjustment. 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
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