Garmin GPSMAP 12X3, Owner'S Manual

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Premium Charts
WARNING
All route and navigation lines displayed on the chartplotter are only intended to provide general route guidance
or to identify proper channels, and are not intended to be precisely followed. Always defer to the navaids and
conditions on the water when navigating to avoid groundings or hazards that could result in vessel damage,
personal injury, or death.
The Auto Guidance feature is based on electronic chart information. That data does not ensure obstacle and
bottom clearance. Carefully compare the course to all visual sightings, and avoid any land, shallow water, or
other obstacles that may be in your path.
NOTE: Not all models support all charts.
Optional premium charts, such as Garmin Navionics
™ , allow you to get the most out of your chartplotter.
In addition to detailed marine charting, premium charts may contain these features, which are available in some
areas.
Mariner’s Eye 3D: Provides a view from above and behind the boat for a three-dimensional navigation aid.
Fish Eye 3D: Provides an underwater, three-dimensional view that visually represents the sea floor according to
the information on the chart.
Fishing Charts: Shows the chart with enhanced bottom contours and without navigational data. This chart
works well for offshore deep-sea fishing.
High Resolution Satellite Imagery: Provides high-resolution satellite images for a realistic view of the land and
water on the Navigation chart ( Showing Satellite Imagery on the Navigation Chart, page 32 ).
Aerial Photos: Shows marinas and other navigationally significant aerial photos to help you visualize your
surroundings ( Viewing Aerial Photos of Landmarks, page 32 ).
Detailed Roads and POI data: Shows detailed road and point of interest (POI) data, which includes highly
detailed coastal roads and POIs such as restaurants, lodging, and local attractions.
Auto Guidance: Uses specified information about your vessel and chart data to determine the best path to your
destination.
Sonar Imagery: Shows sonar imagery to help show the density of the bottom.
Relief Shading: Shows the gradient of the bottom with shading.
Fish Eye 3D Chart View
Using the depth contour lines of the premium charts, such as Garmin Navionics , the Fish Eye 3D chart
view provides an underwater view of the sea floor or lake bottom.
Suspended targets, such as fish, are indicated by red, green, and yellow spheres. Red indicates the largest
targets and green indicates the smallest.
30 Charts and 3D Chart Views