JRC JMA-610 Series Instruction Manual page 69

NOTE : Accurate true bearing signals and speed signals are necessary for using the true
Trails
True Motion Trails
Changing Motion Mode of Trails (Trails mode)
Procedures 1 Place the cursor over the position at the upper right as following figure.
Press [ENTER] key.
The motion mode of trails is switched to true or relative.
motion trails mode.
Land
Ship
3-21
3.5 GENERAL OPERATIONS
Land
Trails
Ship
Relative Motion Trails
3