Garmin gpsmap 520s Manuale Utente

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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 

 to set the value.)

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.

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:

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 

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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 

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