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To set upper and lower limits, press
MENU
until the
R
ANGE
menu ap-
pears. Press
DOWN ARROW
to select
U
SE
UL/LL
, then press
MENU UP
to
open the Upper Limit menu.
Use the arrow keys to select the upper limit. In the example above, we
have selected 10 feet.
With the upper limit set, press
MENU UP
to open the Lower Limit menu. Use
the arrow keys to select the lower limit. In the example above, we have selected
20 feet. As you change the limit setting, you can see changes in the depth scale
on the right side of the screen. Press
PWR
to clear the menu.
With the upper limit at 10 feet and the lower limit at 20 feet, the unit
will now zoom in on and enlarge the detail in the 10-foot range of the
water column defined by the limit settings.
ZOOM
The zoom feature enlarges all echoes on the screen. The 2X zoom doubles
the size of the echoes on the display; the 4X zoom quadruples the echo size.
Zoom screen, showing Zoom menu and the 2X zoom
indicator at the top right of the screen.
To zoom the display, first press the
MENU
key until the
Z
OOM
menu ap-
pears. Use the arrow keys to select either 2X or 4X zoom, then press
PWR
to clear the menu.
When the display is in Zoom mode, the screen will show a zoom indica-
tor box at the top right corner of the screen. This is a reminder that the
display is zoomed, and it tells what level of zoom is in effect.
To turn the zoom feature off, press the
MENU
key until the Z
OOM
menu ap-
pears. Use the arrow keys to select
O
FF
, then press
PWR
to clear the menu.