Raymarine LIGHTHOUSE 3, Advanced Operation Instructions

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Trails
Trails plot the historical movements of objects (Radar returns) for the time specified in the Trails
period setting.
Trails are subject to the selected “Reference Mode” (i.e. True , to show actual motion over “ground”
(COG), or Relative , to show motion relative to your vessel).
Trails can be enabled and disabled using the Show trails toggle switch.
Historical object position is shown as a colored trail behind the object.
Onscreen target settings
Target settings and information are also available using the onscreen Image adjustment icon.
The following target settings and information is available:
• REFERENCE MODE — Choose whether Radar targets and objects are displayed in True or
Relative reference mode.
• Vector period and Trail interval — Displays currently selected values.
• Clear trails — Clears and resets the trails displayed onscreen.
Clearing / resetting trails
In an area with multiple target returns, trails can clutter the Radar image, reducing its ability to
provide a target’s path, under these circumstances you can remove all existing trails using the
onscreen
Clear trails option.
1. Select the onscreen Image adjustment icon.
2. Select Clear trails .
Target context menu
A target context menu is available that provides quick access to useful target settings.
To open the Radar target context menu, select a target onscreen.
The Radar context menu provides CPA, TCPA, COG and SOG data
for the selected target.
The context menu also provides the following target menu options:
• Cancel target — The Radar target will no longer be tracked.
• Show CPA — Determines whether CPA graphics are shown.The
default option is Auto which displays CPA graphics for the target
if it becomes dangerous. You can also set CPA graphics to
On, which displays CPA graphics, if there is an intersect point
between your vessel’s current course and the target’s. When
set to Off no CPA graphics will be displayed for the target.
• Target info — Determines whether the target’s SOG and COG
information is displayed under the target onscreen.
Radar app
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