GPSMAP 4000 Series Owner’s Manual 47
Using Radar
USinG
radar
Select MARPA Target to open the MARPA target information window. This option appears
only when you are targeting a tagged MARPA object.
MARPA Targeting
Acquiring
MARPA target
Tracking
MARPA target
Lost MARPA
target
Dangerous
MARPA target
Closest point and time of
approach to dangerous
MARPA target
3. To stop targeting, select Stop Pointing.
Understanding the Radar Overlay Screen
Use the Radar Overlay option to overlay radar information on the Navigation chart.
To access the Radar Overlay screen:
1. From the Home screen, select Radar > Radar Overlay. The radar picture appears in orange and
overlays the Navigation chart.
2. Use the Range (-/+) keys to zoom in and zoom out.
Zooming while panning the map affects only the zoom scale of the map. The radar range remains
the same. Zooming while the map is locked on the boat (not panning) affects the zoom scale of
the map and the radar range.
To access additional settings or options for the Radar Overlay screen:
1. From the Home screen, select Radar > Radar Overlay > Menu > Setup.
2. Select an option:
Select Chart Setup to set chart options (page 9).
Select Radar Setup to set radar options (page 49).
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