Using Bluechart G2 Vision - Garmin GPSMAP 420 Owner's Manual

Where To?
• wrap—continuously records the track log, replacing the oldest
track data with new data.
Record interval—defines the frequency at which the track plot is
recorded. Recording more-frequent plots is more accurate but fills
the track log faster.
• interval—sets whether the interval is determined by distance,
time, or resolution. (Select
• distance—records the track based on a distance between points.
• Time—records the track based on a time interval.
• Resolution—records the track plot based on a variance from
your course. This setting is recommended for the most-efficient
use of memory. The distance value (Change) is the maximum
error allowed from the true course before recording a track point.
• Change—sets the value of the interval.
Track Color—sets the color of the track plot.

Using BlueChart g2 Vision

Optional BlueChart g2 Vision preprogrammed SD cards allow
you to get the most out of your unit. In addition to detailed marine
charting, BlueChart g2 Vision has the following features:

Change to set the value.)
• Mariner's Eye 3d—provides a view from above and behind the
boat for a three-dimensional navigation aid. The BlueChart g2
Vision Mariner's Eye 3D is more detailed than the preloaded data
(page 16).
• fish Eye 3d—provides an underwater 3D view that visually
represents the sea floor according to the information on the chart.
• fishing Charts—provides a view of 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.
• aerial Photos—provides a view of marinas and other
navigationally significant aerial photos to help you visualize your
surroundings.
• detailed Roads and POi data—provides a view of roads,
restaurants, and other points of interest (POIs) along the shore.
• Current data—provides a view of current-station information
(page 32).
GPSMAP 400/500 Series Owner's Manual