Hide Ship's Heading Line (Hl Off) - JRC JMA-610 Series Instruction Manual

3.4 BASIC OPERATIONS

3.4.10 Hide Ship's Heading Line (HL OFF)

Procedures 1 Hold down [HL OFF] key.
The ship's heading line is hidden while [HL OFF] key is held down.
The ship's heading line (HL) that presents the course of own ship is always shown on the radar
display. The heading line is hidden while [HL OFF] key is held down, so the targets below
the heading line can be easily observed.
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