Position format is the way in which the GPS receiver's position appears on the screen. Commonly displayed as latitude/ longitude in degrees and minutes, with options for degrees, minutes and second, degrees only, or one of several grid formats. Map datum is a math model which depicts a part of the surface of the earth. Latitude and longitude lines on a paper map are referenced to a specific map datum. 1 Find out which map datum and position format was used when the original waypoint was created. If the original waypoint was taken from a map, there should be a legend on the map that lists the map datum and position format used to create that map. Most often this is found near the map key.
2 On the chartplotter, select Settings > Units . 3 Select the correct map datum and position format settings. 4 Create the waypoint again. Software License Agreement BY USING THE DEVICE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY. Garmin Ltd. and its subsidiaries (“Garmin”) grant you a limited license to use the software embedded in this device (the “Software”) in binary executable form in the normal operation of the product. Title, ownership rights, and intellectual property rights in and to the Software remain in Garmin and/or its third- party providers.
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Heading or track controller (autopilot) sentence "B" GPBOD BOD: Bearing (origin to destination) GPBWC BWC: Bearing and distance to waypoint GPGGA GGA: Global positioning system fix data GPGLL GLL: Geographic position (latitude and longitude) GPGSA GSA: GNSS DOP and active satellites GPGSV GSV: GNSS satellites in view GPRMB RMB: Recommended minimum navigation information GPRMC RMC: Recommended minimum specific GNSS data GPRTE RTE: Routes GPVTG VTG: Course over ground and ground speed GPWPL WPL: Waypoint location GPXTE XTE: Cross track error PGRME E: Estimated error PGRMM M: Map datum PGRMZ Z: Altitude SDDBT DBT: Depth below transducer SDDPT DPT: Depth SDMTW MTW: Water temperature SDVHW VHW:
Water speed and heading Sentence Description DPT Depth DBT Depth below transducer MTW Water temperature VHW Water speed and heading WPL Waypoint location DSC Digital selective calling information DSE Expanded digital selective calling HDG Heading, deviation, and variation HDM Heading, magnetic MWD Wind direction and speed MDA Meteorological composite MWV Wind speed and angle VDM AIS VHF data-link message