Gill WindObserver 65 - NMEA Format

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gillinstruments.com
Issue: 8 (Applies to firmware 2387 6.09 onwards)
Document number: 1390-PS-0039
Ultrasonic Anemometer
5.9. NMEA Format
Instrument
Identifier
Wind direction
Wind speed
Units
Checksum
Delimiter
$ IIMWV, 120, R, 002.10, M, A* CC
Start of string Instrument
type
Wind
measurement
Status Check sum
Where
Wind direction
In degrees relative to North (DDD)
Wind speed
In increments of 0.01 units (±MMM.MM)
Units
M
Metres per second (m/s)
N
Knots (knots)
P
Miles per hour (MPH)
K
Kilometres per hour (kph)
F
Feet per minute (fpm)
Start of string
$
Instrument type
IIMWV
Wind measurement
R
Relative wind measurement
Status
A
Acceptable measurement
V
Void measurement
Check sum
Exclusive OR of all characters between ‘$’ and ‘*’ reported as
ASCII hex.
A typical WindObserver 65 configuration suitable for NMEA would be:
B2, E1, F1, G0, K1, L1, M5, O1, P1, U1.
Consult specification NMEA 0183 version 3 (available on the web) www.nmea.org
for complete interface details.