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GPSMAP 400/500 Series Owner’s Manual 15
Using Charts
Using Perspective 3D
Perspective 3D provides a view from above and behind the boat
(according to your course), and provides a visual navigation aid.
This view is helpful when navigating tricky shoals, reefs, bridges, or
channels, and is benecial when trying to identify entry routes and
exit routes in unfamiliar harbors or anchorages.
To access the Perspective 3D screen from the Home screen,
select Charts > Perspective 3D.
Press the Range (+) key to move the view closer to your boat and
lower to the water. Press the Range (-) key to move the view away
from the boat.
To view details about navaids such as beacons, lights, and
obstructions:
1. Use the Rocker to point to the navaid. When the cursor is over
the navaid, the navaid is highlighted.
2. Press SELECT to view details about the navaid.
Perspective 3D Settings
To access additional settings or options from the Perspective 3D
screen, select MENU.
Waypoints & Tracks
—view, add, and congure waypoints and
tracks.
Tracks—turn tracks on or off (page 26).
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Waypoints—view, sort, or lter existing waypoints, or create
new ones.
New Waypoint
—edit, delete, or create a new waypoint.
Active Tracks
—manage tracks (page 26).
Saved Tracks—view a list of tracks that have been saved.
Other Vessels—view information about other vessels. To view
information about other vessels, your unit must be connected to an
external AIS (Automatic Identication System) or DSC (Digital
Selective Calling) device.
Data Bars
(page 9)—show or hide cruising, navigation, shing,
fuel, sailing numbers, or compass tape. When on, compass tape
is displayed at the top of the Perspective 3D screen to provide a
graphical representation of heading.
Chart Appearance
—customize the Perspective 3D chart.
Range Rings—toggles the range rings on or off to provide
distance measurement.
Lane Width
—adjusts the width of the course line drawn when
navigating. This setting also affects routes (Route To), but does
not affect automatic guidance (Guide To).
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