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[II] Discarding navigation data (Unload ).
 Procedures  1  Press [MENU] key. 
Select    8.Next    and press [ENTER] key. 
Select  4.NAV Information 
and press [ENTER] key. 
Select  5.File Operations
  and press [ENTER] key. 
2  Select  4.Unload  and press [ENTER] key.   
Confirmation Window will appear. 
3  Select    1.Yes    and press [ENTER] key. 
The saved navigation data will be discarded. 
4    Press [ MENU] key. 
Menu will be closed. 
[III] Saving navigation data (Save ).
Navigation data can be saved when navigation equipment is connected, or the own ship 
position on the user map is entered in the manual mode. 
 Procedures  1  Insert a flash memory card into the card slot. 
In the case of saving data to internal memory, a card is not necessary. 
2  Press [MENU] key. 
Select    8.Next    and press [ENTER] key. 
Select    4.NAV Information    and press [ENTER] key. 
Select    5.File Operations    and press [ENTER] key. 
3  Select    1.Select Card Slot    and press [ENTER] key. 
4  Select the slot number which you inserted a flash memory card or 
3.Internal    and press [ENTER] key.
5  Select    5.Save    and press [ENTER] key. 
The Input File Name menu will appear. 
6  Enter the file name to be saved. 
Up to 10 characters can be entered. 
After the data has been entered, Confirmation Window will appear. 
7    Press [ MENU] key. 
Menu will be closed.