Appendix 2-2
[3] Data Format
■ HDT (Heading, True)
$GPHDT,xxx.x,T*hh<CR><LF>
1 2
1: True heading 0 - 359.9 degrees
2: Checksum
■ THS (True Bearing with Status)
$GNTHS,xxx.x,x*hh<CR><LF>
1 2 3
1: True bearing [deg]
2: Status
A: GPS based bearing calculation completed
E: DR (operating with backup sensor)
S: Simulation mode
V: Data invalid
3: Checksum
■ ROT (Rate of Turn)
$GPROT,uxxxx.x,A*hh<CR><LF>
1 2 3
1: Rate of turn 0 - 9999.9 (deg, min) u: sign (+,-)
2: Status
A = Valid
V = Invalid
3: Checksum
■ ZDA (Date and Time)
$GPZDA, hhmmss,xx,xx,xxxx,xx,xx*hh<CR><LF>
1 2 3 4 5 6 7
1: UTC time (hours, minutes, seconds)
2: UTC day 01 - 31
3: UTC month 01 - 12
4: UTC year
5: Local zone hours, 00h to ±13h
6: Local zone minutes, 00 to +59
7: Checksum