Vaisala WMT700 - Manual (Page 56)

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