Type Sentence DescriptionPGRMZ Z: AltitudeSDDBT DBT: Depth below transducerSDDPT DPT: DepthSDMTW MTW: Water temperatureSDVHW VHW: Water speed and headingReceive DPT DepthDBT Depth below transducerMTW Water temperatureVHW Water speed and headingWPL Waypoint locationDSC Digital selective callinginformationType Sentence DescriptionDSE Expanded digital selective callingHDG Heading, deviation, and variationHDM Heading, magneticMWD Wind direction and speedMDA Meteorological compositeMWV Wind speed and angleVDM AIS VHF data-link messageYou can purchase complete information about National MarineElectronics Association (NMEA) format and sentences from: NMEA,Seven Riggs Avenue, Severna Park, MD 21146 USA (www.nmea.org)Garmin International, Inc.1200 East 151st StreetOlathe, Kansas 66062, USAGarmin (Europe) Ltd.Liberty House, Hounsdown Business ParkSouthampton, Hampshire, SO40 9LR UKGarmin CorporationNo. 68, Zhangshu 2nd Road, Xizhi Dist.New Taipei City, 221, Taiwan (R.O.C.)Garmin®, the Garmin logo, and GPSMAP® are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries.GMM™, and GRID™ are trademarks of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the expresspermission of Garmin.NMEA®, NMEA 2000® and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association.© 2012 Garmin Ltd. or its subsidiaries www.garmin.com/support