Vaisala WINDCAP WMT700 Series - Appendix E. WMT700 NMEA MWV Profile; E.1 Configurable Parameters

Parameter Name Default
Value
Allowed Values Units Description
wndCover
4 0 ... 20 seconds s Defines how long WMT700
continues to report the last
valid wind value if wind
measurement fails (for
example due to snow or birds).
0 means that if measurement
fails, WMT700 reports missing
measurement data
immediately.
wndDirOffset
0 -180 … 180
degrees
Deg User-defined wind direction
oset.
wndGainLo
1 % Wind tunnel tests show that
the bird cage systematically
lowers the wind speed reading
by 1.5 % (cage) or 2.5 % (cage
and net). The wndGainLo
parameter can be used to
compensate for wind speed
gain correction for the bird
cage.
S wndGainLo,1.015
wndGustTime
3 0.25 … 10
Resolution: 0.25
s Averaging time for wind
minimum and maximum in
seconds.
wndOrientation
0 0 = Array facing
up
1 = Array facing
down
Orientation of the transducer
arms of WMT700.
wndRate
1 1 = 4 Hz
2 = 8 Hz
Hz Wind vector update rate. For
best performance in wind
speeds over 50 m/s, Vaisala
recommends the 4 Hz rate.
wndUnit
0 0 = m/s
1 = mph
2 = km/h
3 = knots
Wind speed unit. This
parameter aects data
messages sent through serial
interfaces but has no impact
on analog output.
wndVector
0 0 = Scalar
averaging
1 = Vector
averaging
Wind averaging method
Appendix D – Configuration Parameter Descriptions
191