20
RANGE - Upper and Lower Limits
You can change the upper and lower range limits when the unit is in the
manual mode. This lets you "zoom" in on segments of the water as small
as 10 feet. In other words, you can set the upper limit to 25 feet and the
lower limit to 35 feet, regardless of the bottom depth. This in essence, gives
you a 10 foot zoom. You can choose any segment of the water, as long as
the distance between the upper limit and lower limit is 10 feet (10 meters)
or more.
To change the upper limit, first make certain
the unit is in the manual mode. Next, press a
menu key until the "UPPER LIMIT" menu
appears. Now press the down arrow key to
increase the upper limit or the up arrow key to
decrease it. After you've finished, wait a few
seconds and the menu will scroll off the
screen’s left side. Pressing the PWR key also
clears it.
21 FOOT UPPER LIMIT
To change the lower limit, again make certain the unit is in the manual
mode. Press a menu key until the "LOWER LIMIT" menu appears. Now
press the down arrow key to increase the lower limit or the up arrow key
to decrease it. When you have the limit set, wait a few seconds and the
menu will scroll off the screen’s left side. Pressing the PWR/CLEAR key
also clears it.