Main Menu.
Main Menu Commands
There are four "basic" Main Menu commands that you'll really want to read more about. They are:
•Screen commands (CONTRAST, BACKLIGHT LEVEL and TRANSPARENCY):
change the appearance of the display screen. Use these commands to adjust how the screen looks under various lighting conditions.
•Volume command: controls sound levels for key strokes and alarms. If you don't like to hear a beep each time you press a key, you can turn all
sounds off by setting the volume to zero. Sound is especially useful when used with the Fish I.D. fish symbol feature and fish alarm feature.
•Sonar Alarms command: turns alarms on or off and changes alarm thresholds. The fish alarm, used with Fish I.D., is the most popular use. It tells you when the sonar sees a fish. You can also set deep or shallow depth alarms.
•Popup Help command: turns the
The remaining Main Menu commands are for more advanced functions, mostly setting various sonar options. (They're all detailed in the Ad- vanced Section.)
•Units of Measure command: selects the units of measure used for showing speed/distance, depth and temperature.
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