Appendix-26
Input Sentence
・HDT – Heading true
$--HDT, x.x, T*hh<CR><LF>
1 2
1:Heading, degrees true
2:Heading, degrees true
・THS – True heading and status
$--THS,x.x,a*hh<CR><LF>
1 2
1:Heading, degrees true
2:Mode indicator (see Note)
NOTE Mode indicator. This field should not be null.
A = Autonomous
S = Simulator mode
V = Data not valid (including standby)
・DBT – Depth below transducer
$--DBT, x.x, f, x.x, M, x.x, F*hh<CR><LF>
1 2 3
4 5 6
1:Water depth, feet
2:Water depth, feet
3:Water depth, m
4:Water depth, m
5:Water depth, fathoms
6:Water depth, fathoms
・DPT – Depth
$--DPT, x.x, x.x, x.x*hh<CR><LF>
1 2 3
1:Water depth relative to the transducer, in metres
2:Offset from transducer, in metres (see Notes 1 and 2)
3:Maximum range scale in use
NOTE 1 “positive” = distance from transducer to water line; “-“ = distance from transducer to keel.
NOTE 2 For IEC applications, the offset should always be applied so as to provide depth relative to the keel.
・MTW – Water temperature
$-- MTW, x.x, C*hh<CR><LF>
1 2
1:Temperature, degrees C
2:Temperature, degrees C