Furuno 1815 Operator's Manual page 80

To show or hide the navigation data at the bottom of the screen, do the following:
1. Press the MENU/ESC key to open the menu.
2. Use the Cursorpad ( or ) to select [Display] and press the ENTER key.
3. Use the Cursorpad ( or ) to select [Data Box] and press the ENTER key.
4. Use the Cursorpad ( or ) to select an option and press the ENTER key.
[Off]: Turn off the data display.
[Nav]: Navigation data
[Target]: TT and AIS target data (See section 3.8 and 4.5.)
[All]: Navigation data plus TT and AIS target data
5. Press the MENU/ESC key to close the menu.
Data Box options
5. OPERATION
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