63MX 420 Installation and Service ManualID DESCRIPTION ID DESCRIPTION* APA Autopilot Sentence A RMB Recommended MinimumNavigation InformationAPB Autopilot Sentence B RMC Recommended MinimumSpecific GPS/ Transit DataBOD Bearing Origin to Destination *Rnn RoutesBWC Bearing & Distance to Waypoint - GreatCircleRTE RoutesBWR Bearing & Distance to Waypoint - RhumbLine*SNU Loran- C SNR StatusDTM Datum ReferenceVDR Set & DriftGGA GPS Fix DataVHW Water Speed and HeadingGLL Geographic Position - Latitude/LongitudeVPW Speed Measured Parallel to WindGRS GPS Range ResidualsVTG Course & Speed OverGroundGSA GPS DOP & Active SatellitesWCV Waypoint Closure VelocityGST GPS Pseudorange Noise StatisticsWPL Waypoint LocationGSV GPS Satellites In ViewXTE Cross- Track Error, MeasuredHSC Heading Steering Command ZDA Time & DateMSK MSK Receiver Interface ZTG UTC & Time to DestinationWaypointMSS MSK Receiver Signal Status* APA , Rnn and SNU are older sentence formats (version 1.5) not recommended for newdesigns.HDT Heading, TrueROT Rate of TurnTable 5.1 NMEA 0183 Output SentencesInput NMEA 0183 SentencesThe MX420 recognizes version 1.5, 2.0,2.1 and 2.3 NMEA input records. The MX420can utilize the following input sentence formats:Depth: DBK, DBS, DBT, and/ or DPTGyro: HCC, HDM, HDT, RMA (only when GPS is not available), RMC (only when GPS isnot available), VHW, and VTG (only when GPS is not available)Position: GLL, RMA, RMC (only when GPS is not available)
