Airmar LB150 - Manual (Page 35)

LB150 WeatherStation Technical Manual revision 0.013
Proprietary and Confidential
PRELIMINARY - DRAFT 32
_ NMEA 0183 RECEIVED SENTENCE _
$--
HDT
Summary
NMEA 0183 standard Heading, True.
Syntax
$--HDT,<1>,<2>*hh<CR><LF>
Fields
<1> Magnetic sensor heading, degrees.
<2> T = True.
Notes
See section 2.2.1. for precedence rules regarding data received via this sentence.