JRC JMR-9225-9X3 - Hiding the Heading Line (HL OFF)

Section 5 Basic Operation of the Radar 5-34
5.4.11 Hiding the heading line (HL OFF)
1 Click on the disclosure button on the left toolbar.
When the left toolbar is set to expanded display, this operation is not required.
2 The ship's heading line is hidden while the [HL Off] button is pressed down.
When the button is released, the ship's heading line is redisplayed.