NMEA HDT datagram format
The NMEA HDT datagram provides the true vessel heading.
The information is normally provided by a course gyro.
Format
$--HDT,x.x,T*hh<CR><LF>
Description
1
$—
:
Talker identifier
2
HDT
:
Datagram identifier
3
x.x,T
:
Heading
(
Degrees True
)
4
*hh
:
Checksum
Related topics
NMEA datagram formats
I/O Datagram formats