USING THE TRACKER UNIT
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 pro- vides detailed information of any area from the surface to the bottom. In man- ual 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 num- ber 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
menu time out.
When the unit is powered off, the Zoom menu returns to Zoom Off.
Depth Alarm. The Tracker unit contains an audible alarm to warn you of shallow water depths. The alarm is adjustable to depths of 3' (1m) to 99' (30m). When the alarm is enabled, an audible alarm sounds if the water beneath the boat is equal to or less than the selected alarm depth. The alarm
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