Manual
TECHNICAL REFERENCE___________________________________________________________ 
54 __________________________________________________________________ M211097EN-C 
WS425 A/B NMEA Extended Data 
Message 
WS425 A/B NMEA Extended data message is as follows: 
$P<id>MWV,<dir>,<ref>,<spd>,<uni>,<sta>*<chk><CR><LF> 
where 
$P 
 = 
Fixed text 
<id> 
 = 
Data ID; A … Z 
MWV 
 = 
Fixed text 
<dir> 
 = 
Wind angle: 0 to 359 degrees 
<ref> 
 = 
Reference: 
R = relative 
T = true 
<spd> 
 = 
Wind speed 
<uni> 
 = 
Wind speed unit: 
K = kilometers per hour 
M = meters per second 
N = knots 
<sta> 
 = 
Status: 
A = valid data 
V = invalid data 
* 
 = 
Fixed text 
<chk> 
 = 
Checksum (8-bit XOR, excluding $ and *) 
<CR> 
 = 
Carriage return code, ASCII 0DH 
<LF> 
 = 
Line feed code, ASCII 0AH 










