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Press
MENU
|
MENU
|↓ to
U
NITS OF
M
EASURE
|
ENT
.
Main Menu, left, Units of Measure Menu, right.
To set Units of Measure: Press ↓ to the desired units, then press ENT.
After all the options are set as desired, press
EXIT
|
EXIT
to return to the
page display.
Upper and Lower Limits
See the entry in this section for Depth Range - Upper and Lower Limits
Volume
This command adjusts the speaker volume, which controls the sound
levels for keystrokes and alarms. If you want to turn off all sounds, set
the volume to zero.
To adjust volume:
1. Press
MENU
|
MENU
|↓ to
V
OLUME
|
ENT
.
2. The Volume Control Bar appears. Press ↓ to decrease the volume; press
↑ to increase the volume. When it's set at the desired level, press
EXIT
.
Zoom & Zoom Bar
"Zooming" the display is used to enlarge small detail, fish signals and
the bottom with its associated structure.
The 2X zoom doubles the size of all echoes on the screen. The 4X zoom
quadruples the size of the echoes. You can also turn on a zoom bar on
the far right side of the screen; this shows which echoes will be dis-
played on the screen when the Zoom commands are used.
For example, turning on the 2X zoom will show all echoes that are be-
tween the top and bottom of the 2X zoom bar. The 4X zoom will show
only the echoes between the top and bottom of the 4X zoom bar.
To switch to zoom:
1. Press
MENU
|↓ to
Z
OOM
L
EVEL
|
ENT
.