JMA-9172-SA Instruction Manual > 3.BASIC OPERATION > 3.6  DISPLAY USER MAP
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2) Specify the mark font size.
3.6.2.4 Setting the character size for comments
1) Open the Comment Font Size menu by performing the menu 
operation below.
→ 
→ 
The Comment Font Size menu will appear.
2) Specify the comment font size.
 
3.6.3 Edit User Map (Edit User Map)
3.6.3.1 Manually entering the own ship position (Own Ship Position)
Use this function when editing navigation data for a location different from the own ship 
position.
1) Open the Own Ship Position menu by performing the menu 
operation below.
→ 
The number key screen for entering the latitude/longitude of the Own Ship Position will 
appear.
 Normal : The mark is displayed in normal size.
 Small : The mark is displayed in a size smaller than usual.
 Normal : The characters for comments are displayed in normal size.
 Small : The characters for comments are displayed in a size smaller
than usual.