JRC JMA-5212-4/6 User Manual page 126

[IV] Parallel Index Line Bearing Fix Mode (PI Bearing Mode)
If this function is set to ANGLE , the parallel index line also rotates in accordance with the bearing
while the own ship is turning. If the function is set to SCREEN FIX , the parallel index lines are fixed
within the radar display even while the own ship is turning. The parallel index lines are displayed at the
same place even while the own ship is turning.
Procedure 1
2
Press [RADAR MENU] key.
Press [3] key.
Press [5] key.
Press [3] key.
The Parallel Index Line Menu will appear.
Press [4] key.
The PI Bearing Mode Setting Menu will appear.
ANGLE: Links the parallel index lines
with the bearing of the own
ship.
SCREEN FIX: Fixes the parallel index lines to
the radar display.
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