JRC JMA-5912-6 Instruction Manual page 90

Digital information: AIS target information
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.
Simple display item
2-25
① Detail / simple display
switching
② Unread message display