Garmin GPS 125 Sounder - Manual (Page 43)

Zoom Function
The sounder zoom function allows you to see the
current display picture at 2 times (2X) or 4 times (4X)
magnification. 2X means that the screen displayed will
now cover 1/2 the range you were originally viewing in
twice the detail, and 4X shows 1/4 the original range at
four times the detail. Because less area is being shown
(in a zoom screen) objects can be seen in greater detail.
The zoom function is accessed by using the IN and
OUT key when viewing the Sounder Page. The sounder
zoom function is divided into two display levels:
• 2X - Displays the zoomed screen at 1/2 the
original range.
• 4X - Displays the zoomed screen at 1/4 the
original range.
Once activated, the zoomed picture becomes the
Sounder Page display. Note: The zoom function can
only be deactivated by pressing the OUT key until the
original zoom scale appears.
The zoom function operates in either Auto range or
Manual range. Zooming while in Auto will continue to
follow the bottom contour, while zooming in Manual
will show the selected depth.
To access the sounder zoom function:
1. While viewing the Sounder Page, press
I
once.
The 2X screen will appear. Note: the current zoom scale
will be displayed in the upper left corner of the screen.
2. Press
I
once more to advance to the 4X screen.
3. To deactivate the sounder zoom function, press
I
once. You may also press and hold
H
until the original
scale picture appears and a triple beep sounds.
Moving the Zoom Window
You may move the displayed range on a zoomed
screen at any time, just as you would a non-zoom
screen, by pressing the arrow keypad up or down. This
will move the zoom “window”.
If you prefer to keep the window in its new posi-
tion, you will need to save the change. Note: Saving the
new window position requires different steps if you are
in Auto range when you move the window versus
being in Manual when the window is moved.
39
Pressing the IN key once
while on the Sounder Page
activates the 2X Zoom.
REFERENCE
Zoom Function
& Zoom
Window
The 4X zoom shows objects
at 4 times magnification
and 1/4 the original range
scale.
125 Man Rev B 7/23/98 11:48 AM Page 39