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GXM 30 XM Radio Smart Antenna Owner’s Manual
Surface Winds
Marine and Automotive units shows Surface Winds with a wind barb. The wind barb is a circle with a tail. The circle points into the
wind. Wind speed is indicated by the different combination of flags that are attached to the tail.
Wind Direction
Calm
5 knots
10 knots
15 knots
20 knots
50 knots
Surface Winds