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18 GPSMAP 400/500 Series Owner’s Manual
Using Charts
Suspended
targets
Fish Eye 3D
Tracks—turns the track log on or off.
Data Bars
—show or hide cruising, navigation, shing, fuel, or
sailing numbers (page 9).
Using Fishing Charts
Use the Fishing chart for a detailed, unobstructed view of the bottom
contours on the chart.
The Fishing chart uses detailed bathymetric data on a
preprogrammed BlueChart g2 Vision SD card, and is best for
offshore deep-sea shing.
From the Home screen, select Charts > Fishing Chart.
To access additional settings or options from the Fishing chart,
press MENU.
Navaids—displays navigational aids, such as beacons, lights, and
obstructions.