Garmin GXM 30 Satellite Radio User Manual


 
GXM 30 XM Radio Smart Antenna Owner’s Manual 18
Wave Direction
The Wave Direction feature shows the direction in which a
wave is moving, as indicated by the direction of the red arrow.
Wave Height
The Wave Height feature displays wave heights. The wave
heights for an area are separated by contour lines.
Wave Direction Wave Height
XM WEATHER FEATURES > WAVE DIRECTION AND WAVE HEIGHT