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Range
When turned on for the first time, the unit automatically adjusts the
depth range according to water conditions. It always keeps the bottom
displayed in the lower portion of the screen. You can over-ride the
automatic range control and manually select a range.
To do this, press
MENU until the RANGE menu appears. Use the arrow
keys to select the desired range. When you're finished, press
PWR to
clear the menu from the display.
Range Select menu.
This unit has the following ranges:
10, 15, 20, 30, 40, 60, 80, 100, 150, 200, 300, 500, 800 and 1,000 feet.
Zoom
The zoom feature enlarges all echoes on the screen. The 2X zoom dou-
bles the size of the echoes on the display; the 4X zoom quadruples the
echo size.