NMEA VWR datagram
The NMEA VWR datagram provides the wind angle in relation to the vessel's heading, and the wind speed measured relative to the moving vessel.
Note
This datagram format is not recommended for use in new designs. It has been replaced by the MWV datagram format.
Format
$--VWR,x.x,a,y.y,N,z.z,M,s.s,K*hh<CR><LF>
Description
1 $—Talker identifier
2 VWRDatagram identifier
3 x.xWind angle (0 to 180°)
4 aReference
L = Left
R = Right
5 y.y,NWind speed in knots
6 z.z,MWind speed in meters/second
7 s.s,KWind speed in kilometres/hour
8 *hhChecksum