3-29
Trails Motion Mode
There are two types of trails, relative motion trails and true motion trails.
Relative motion trails : The system plots the trails of a target at a position relative to the own
ship.
The operator can easily judge whether the target is approaching the own
ship.
While the own ship is moving, the system also plots the trails of land and
other fixed targets.
True motion trails : The system plots the absolute motion trails of a target, irrespective of the
own ship’s position.
The operator can easily judge the course and speed of the target.
The system does not plot the trails of land and other fixed targets.
Trails modes provided with this system vary depending on the motion mode.
With true motion (TM) mode : Only the true motion trails mode is available.
With relative motion (RM) mode :
The relative motion trails mode or true motion trails mode is selectable.
RM(R) is indicated while the relative motion trails mode is active.
RM(T) is indicated while the true motion trails mode is active.
While the true motion trails mode is active, this system enables the continuous use of true motion
trails even if any of the following operations is performed:
• Motion display mode change (TM / RM)
• TM reset
• Azimuth display mode change (AZI Mode)
• Center move (Off Center)
• MAP display on / off (Map)
Note:
Accurate true bearing signals and speed signals are necessary for using the true motion trails
mode.
Changing Motion Mode of Trails (Trails mode)
Procedures 1 Put the cursor on radar trails display true / relative switching (TT / AIS
information ⑬ on page 2-23), and press the [ENT] key.
The trails motion modes are switched.
T ⇒ R ⇒ T
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