Airmar PB200 User Manual
Page 106
PB200 WeatherStation User Manual revision 1.000
Proprietary and Confidential
100
NMEA 0183 TRANSMITTED SENTENCE
$YX
XDR
Summary
NMEA 0183 Transducer Measurements. Used in the PB200 WeatherStation to
provide wind chill, heat index, barometric station pressure, and vessel attitude
(pitch and roll) data.
IMPORTANT NOTE: See the discussion in the Notes section below regarding
the behavior of the XDR sentence with regard to null fields and commas.
Syntax
$YXXDR,<1>, <2>, <3>, <4>,
<5>, <6>, <7>, <8>,
<9>, <10>,<11>,<12>,
<13>,<14>,<15>,<16>
*hh<CR><LF>
Fields
There are two versions of this sentence, the "A" version, and the "B" version.
The fields in the A version of the XDR sentence are as follows:
<1>
C = temperature
<2>
Calculated “relative” wind chill temperature, degrees Celsius, to the
nearest 0.1 degree
<3>
C = degrees C
<4>
WCHR (ID indicating relative wind chill)
<5>
C = temperature
<6>
Calculated “theoretical” wind chill temperature, degrees Celsius, to the
nearest 0.1 degree
<7>
C = degrees C
<8>
WCHT (ID indicating theoretical wind chill)
<9>
C = temperature
<10>
Calculated heat index, degrees Celsius, to the nearest 0.1 degree (this
field left blank by WeatherStation)
<11>
C = degrees C
<12>
HINX (ID indicating heat index)