Digital information: AIS target information 
 
① Detail / simple display 
switching
Simple display item
② Unread message display
 
 
 
①:Detail / simple display switching 
This function switches the display mode to detail / simple display when AIS target information is 
displayed. 
 
②:Unread message display 
When there is an unread message from the AIS target that is displayed, the message is displayed.    If 
this button is clicked, the message is displayed. 
 
 
 
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