GPSMAP ® 4000/5000 Series Owner’s ManualUsing ChartsUsingChartsUsing ChartsYour unit has a basic worldwide imagery map. By purchasing an optional Blue Chart g2 Visionpreprogrammed SD card, you can view detailed information for your region, including:Navigation Chart—displays navigation data, including buoys, lights, cables, depth soundings,marinas, and tide stations in an overhead view.Mariner’s Eye 3D—displays a view from above and behind your boat for a visual navigationaid.Fish Eye 3D—an underwater view that visually represents the sea floor according to theinformation on the chart.Fishing Chart—removes navigational data from the chart and enhances bottom contours fordepth recognition.The unit automatically shows relevant navigational data when you select a navigation option.Using the Navigation ChartUse the Navigation chart to plan your course, to view map information, and as a navigational aid.To access the Navigation chart, from the Home screen, select Charts > Navigation Chart.Navigation Chart with BlueChart g2 Vision DataBuoyBeaconYour boatExposedwreckMarineservicesZoom scaleSubmergedwreckZooming In and Out on the MapThe RANGE (+/-) keys (GPSMAP 4000 series) or the and keys (GPSMAP 5000 series)control the zoom level, indicated by the scale at the bottom of the Navigation chart ( ). Thebar under the number represents that distance on the map.Navigation Chart MenuTo access additional settings or options for the Navigation chart, select Menu.Waypoints & tracks—view and add waypoints and tracks, and configure how they are displayed.Other Vessels—view information about other vessels. To view information about other vessels,your unit must be connected to an external AIS (Automatic Identification System) or DSC (DigitalSelective Calling) device.Stop Navigation—stop navigating to your destination (only available while navigating).Chart Setup—customize the Navigation chart settings (page 9).••••