JRC JMR-611 Instruction Manual page 52

29 【SEA STATE】
The mode is switched as follow whenever the button is clicked. (Only when system is receiving
GPS and heading data is received at intervals of 100 ms or less.)
30 【SENSITIVE】
The mode is switched to LEVEL1 / LEVEL2 / LEVEL3 whenever the button is clicked.
31 【ECHO BORDER】
The mode is switched to show an outline around the radar echoes.
32 【AIS label】
If this button is held down, vessel's name will appear beside AIS symbols. When the button is
released, name will disappear.
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