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17
USING THE 105SX
MENU FUNCTIONS
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. 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, but is most useful in
flatter areas without considerable depth variation. 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.
When the range is shown in the menu, the upper number represents the
top of the current Zoom range. The lower number represents the bottom
of the Zoom range. Use the UP and DOWN ARROW buttons to move this
range. The upper number can never be less than 0 (the surface of the
water), and the lower number can never be greater than the active depth
range. The difference between the two numbers (the Zoom range) is
preset and determined by the active depth range.
Once manual Zoom is selected, the display appears the same as in Auto
Zoom, but the zoom range does not change automatically.
To disable Zoom, press the MENU button until the Zoom menu is on-
screen. Use the UP ARROW to highlight Off, and let the menu time out.
When the unit is powered off, the Zoom menu returns to Zoom Off.