Garmin 521s 用户手册

Using Charts 

For settings and options related to  Full Screen Map, Waypoints & 

Tracks, Other Vessels, and Data Bars, see “Navigation Chart Menu” 

  To customize the appearance of the Fishing Chart screen, select 

 > 

You can overlay high-resolution satellite images on the land, sea, or 

both portions of the Navigation chart when using a preprogrammed 

BlueChart g2 Vision SD card. 

1.  While viewing the Navigation chart, press 

.

2.  Select 

 > 

.

3.  Select one of the following:

Off—standard chart information is shown on the map.
Land Only—standard chart information is shown on water 

with photos overlaying the land.
On—photos overlay both the water and the land at a specified 

opacity. The higher you set the percentage, the more the 

satellite photos will cover both land and water.

  NOTE: When enabled, the high-resolution satellite images are only 

present at lower zoom levels. If you cannot see the high-resolution 

images in your BlueChart g2 Vision region, either zoom in further 

using the Range (+) key, or set the detail level higher (