JRC JMA-993-SA Instruction Manual page 122

a a a a a a a a a a a a a a a a o a a o o a a a a o a a a a a a a a a a o a a
@ 1 C | i c k t h e | R M | b u t t o n o n t h e u p p e r | e f t o f t h e s c r e e n .
The Relative Motion mode is changed to the True Motion mode. In the True
Motion mode, the position of own ship on the display moves depending upon
its course and speed and the influence of the current. Land and other fixed
ranges are fixed on the display and only actually moving targets move on the
radar display. When the True Motion mode is selected, own ship's position
will be set to about 66% of the display radius in the opposite direction to its
course allowing for the influence of the current. Own ship will start moving
depending upon its course and speed and the influence ofthe tide.
Subsequently, when own ship anives at the position of about 660/o of the
display radius, the ship will be automatically reset to its initial position at about
65% of the display radius in the opposite direction to its course allowing forthe
influence of the current.
Fixed on the radar display
Moving depending on own ship's speed
True Motion Display
E @ 1 G | i c k t h e m b u t t o n o n t h e u p p e r | e f t o f t h e s c r e e n .
The True Motion mode is change lo the Relative Motion mode.
One shio will be reset to center oosition.
3-52