Humminbird 981 Fish Finder User Manual


 
Total Screen Update: when you change any menu settings that affect the Sonar View,
the view will update immediately (i.e. you don’t have to exit the menu to apply the
change to the screen).
START-UP OPTIONS MENU
Press the MENU key when the Title screen is displayed to access the Start-Up
Options menu.
Use the UP or DOWN 4-WAY Cursor keys to position the cursor, then the RIGHT Cursor
key to select one of the following choices. If you wait too long, the system will default
to whichever menu mode happens to be highlighted:
• Normal
• Simulator
• System Status.
See the following paragraphs for more information about each of these choices.
Start-Up Options Menu
Sonar Tab, Normal Mode
Sonar Tab, Advanced Mode
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