Raymarine LIGHTHOUSE 3 Advanced Operation Instructions page 277

Radar targets can be cancelled individually by selecting the 'X' next to the target's details in the list,
or you can cancel all targets by selecting Cancel all targets.
Target settings
Target vectors, target history and object trail graphics can be displayed onscreen to improve
situational and collision awareness.
Target settings can be accessed from the Target Settings tab: Menu > Targets > Target settings.
Reference mode
Target settings can be configured to either True or Relative mode. In True mode, Trails, Vectors
and History are colored Blue and are shown ground referenced (i.e. the object or target's actual
Course Over Ground (COG)). In Relative mode, Trails, Vectors and History are colored Orange and
are shown relative to your vessel's movement.
To switch the target reference mode, select the REFERENCE MODE setting. Alternatively, you
can switch reference mode by selecting the onscreen Image Adjustment icon and then selecting
either True or Relative.
True mode Relative mode
The Target Settings reference mode is independent of your vessel's motion mode.
Radar app
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