Garmin GDL 30 Marine Radio User Manual


 
12 GDL 30/30A Owner’s Manual
Visibility
Visibility is the maximum horizontal distance that can be seen. Isobars on the Visibility feature show a change in visibility. In the example below, visibility ranges from
.5 miles to 3 miles.
This image shows NEXRAD, Cloud Tops, and Visibility. Displaying
multiple features may help to provide a clearer picture of the weather
conditions in the area.
the weather Features