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Memory
This unit has permanent memory that saves all user settings, even whe
n
power is removed. It does not require, nor does it use an internal backup
battery, so you never have to worry about replacement batteries.
Menus
Y
our sonar unit will work fine right out of the box with the factory
d
efaul
t
settings. You only need to learn a few basic functions to enhance you
r
viewing. We'll discuss them briefly here, then discuss them and all the
other commands in more detail in Sec. 4, Advanced Sonar Operation.
Sonar Mode has two primary menus: the Main Menu
and the Sona
r
Menu.
Main Menu
The Main Menu contains basic function and setup option commands. Yo
u
access the Main Menu by pressing MENU|MENU. You execute a comman
d
by using ↑ or ↓ to highlight a command and pressing ENT. To clear the
Main Menu screen and return to the main page display, press
EXIT.
Main Menu.
Main Menu Commands
Screen: changes the appearance of the display screen.
Sounds: controls sound levels for keystrokes and alarms.