4)  NMEA0183 standard input/output sentence 
 
Input sentence 
$xxGGA  Global Positioning System Fix Data 
$xxGLL  Geographic Position – Latitude/Longitude 
$xxGNS  GNSS fix data 
$xxMTW Water temperature 
$xxMWD  Wind direction and speed 
$xxMWV  Wind speed and angle 
$xxRMA  Recommended minimum specific LORAN-C data 
$xxRMB  Recommended Minimum Navigation Information 
$xxRMC  Recommended Minimum Specific GNSS Data 
$xxROT Rate of turn 
$xxRSA  Rudder sensor angle 
$xxTHS  True heading and status 
$xxVBW Dual ground/water speed 
$xxVDM  AIS VHF data-link message 
$xxVDO 
AIS VHF Data-link Own-vessel report 
$xxVTG  Course Over Ground and Ground Speed 
$xxZDA Time and date 
 
Output sentence 
$GPGGA  Global positioning system (GPS) fix data 
$GPGLL  Geographic position – latitude/longitude 
$GPRMC  Recommended minimum specific GNSS data 
$GPVTG  Course over ground and ground speed 
$RAAIS AIS Data 
$RAALR  Set alarm state 
$RAAPB or $GPAPB 
Heading/Track controller (autopilot) sentence B 
$RABOD or $GPBOD 
Bearing origin to destination 
$RABWC or $GPBWC 
Bearing and distance to waypoint 
$RAHDT or $GPHDT 
Heading true 
$RAOSD  Own Ship Data 
$RARMB or $GPRMB 
Recommended minimum navigation information 
$RARSD Radar System Data 
$RATHS or $GPTHS 
True heading and status 
$RATLB(AIS) Target label 
$RATLB(TT) 
Target label 
$RATLL(AIS) Target latitude and longitude 
$RATLL(TT) 
Target latitude and longitude 
$RATTD(TT) 
Tracked Target Data 
$RATTM(AIS)  Tracked Target Message 
$RATTM(AIS)  Tracked Target Data 
$RATTM(TT) 
Tracked Target Message 
$RAXTE or $GPXTE 
Cross-track error, measured 
 
3-9