Cancel Ship's Heading Line [Hl Off]; Cancel All Display Items Except Hl And Cross Cursor Mark [+] [Data Off] - JRC JMA-9922-6XA Instruction Manual

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Course-Up Mode [COURSE UP]
３
North-up Mode
Cancel Ship's Heading Line [HL OFF]･･････････････････････
The ship's heading line (HL) that presents the course of own ship is always displayed on the radar
display. The heading line is canceled while this switch is being pressed, so that the targets on the
heading lines can be seen easily.
Cancel All Display Items Except HL and Cross Cursor Mark
[+] [DATA OFF]･･･････････････････････････････････････････
All display information such ARPA vectors, symbols and navigation data may be cancelled
temporarily by the following operations, except VRMs, EBLs, HL, cross cursor mark [＋] and range
rings.
Procedures
By pressing this switch, the ship's heading line is fixed pointing to the zenith of the
PPI (0° on range rings). In the same way as in the North-up mode, fixed targets do
not flicker, but are stabilized even if the ship is yawing. The bearing of the heading
line varies by the same shift of own ship's course. If the course is changed, the
heading line can be reset to the Course-up mode by pressing the switch several
times.
North
HL OFF
1 Click MENU on the screen.
The MAIN Menu will appear.
Head-up Mode
H L
OFF
3-49
North
Course-up Mode