USING THE 450TX
MENU FUNCTIONS
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.
It is not possible to use Zoom in conjunction with the Large Digital View.
To disable Zoom, press the MENU button until the Zoom menu is
When the unit is powered off, the Zoom menu returns to Zoom Off.
Depth Alarm. The 450TX contains an audible alarm to warn you of shallow water depths. The alarm is adjustable to depths of .6m (2') to 30m (99'). 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 sounds continuously for about five seconds, and then intermittently to remind you that you are still in shallow water. Additionally, the 450TX can anticipate quickly changing terrain and sound the Depth Alarm before the bottom depth actually reaches the preset alarm depth.
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