Chapter 3 Basic operation MDC-2200/2500 Series
0093125002-04 3-18
For relative motion (RM) and true motion (TM)
Relative motion indicates the motion of surrounding targets with own ship’s position fixed at the center
of the screen.
Because own ship position is centralized, fixed targets such as the land also move on the display while
the ship is moving.
True motion indicates the motion of the target as a center of the specified bearing.
Fixed targets that do not move in any direction stay on the display as they were and actually moving
targets move on the screen.
*No true motion [TM] is available for [H UP] mode because the heading always continues to move.
Relative motion (RM): The own ship position is fixed and the other surrounding targets move on the
screen.
This is useful for monitoring the surrounding situation from the own ship’s
position as a center.
Moving
Fixed
Own
ship
Moving
Land
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