APPENDIX
AP-20
VWR - Relative (Apparent) wind speed and angle
$--VWR,x.x,a,x.x,N,x.x,M,x.x,K*hh<CR><LF>
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | +----------------------- 5
| | | | | +---+------------------------- 4
| | | +---+---------------------------------- 3
| +--+---------------------------------------------- 2
+------------------------------------------------------ 1
1. Measured wind angle relative to the vessel, 0 to 180
°
, left/right L/R of vessel heading
2. Measured wind speed, knots
3. Wind speed, meters/second
4. Wind speed, Km/Hr
5. Checksum
VWT
-
True wind speed and angle
$--VWT,x.x,a,x.x,N,x.x,M,x.x,K*hh<CR><LF>
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | +----------------------- 5
| | | | | +---+------------------------- 4
| | | +---+---------------------------------- 3
| +--+---------------------------------------------- 2
+------------------------------------------------------ 1
1. Calculated wind angle relative to the vessel, 0 to 180
°
, left/right L/R of vessel heading
2. Calculated wind speed, knots
3. Wind speed, meters/second
4. Wind speed, Km/Hr
5. Checksum
WPL - Waypoint location
$--WPL,llll.lll,a,yyyyy.yyy,a,c--c*hh<CR><LF>
| | | | | |
| | | | | +--------- 4
| | | | +------------ 3
| | +-----+---------------- 2
+-----+---------------------------- 1
1. Waypoint latitude, N/S
2. Waypoint longitude, E/W
3. Waypoint identifier
4. Checksum