Lantronix PNT Series PNT-SG3FS GNSS Module Software User Guide - Page 143
Paramete, Format, Description, Parameter
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12. Messages Paramete Format r Description Date Decimal, 6 digits Date of Fix: ddmmyy MagVar Decimal, 4 digits Magnetic Variation, max.: 090.0 MagVarDir "E" or "W" Magnetic Variation Direction Mode "D", "A", "N" or "E" Positioning system Mode Indicator: "D" = Differential mode "A" = Autonomous mode "N" = data not valid "E" = Estimated (dead reckoning) mode Nav_statu "S", "C", "U" or "V" Navigational status indicator: s "S" = Safe "C" = Caution "U" = Unsafe "V" = Not valid checksum Hexadecimal, 2 Checksum of the message bytes without * characters. digits Example for NMEA 0183 Rev 3.1 (Default): $GPRMC,183417.000,V,4814.040,N,01128.522,E,0.0,0.0,170907,0.0,W*6C Example for NMEA 0183 Rev 4.10: $GNRMC,,V,,,,,,,,,,N,V*37 or $GNRMC,202340.000,A,4045.53297,N,01447.20361,E,0.2,0.0,291117,,,A,C*18 $--VTG Course over ground and ground speed, this message provides the actual course and speed relative to ground. NMEA message list bitmask (64 bits): 0000 0000 0000 0010 Synopsis for NMEA 0183 Rev 3.1 (Default): $GPVTG,,T,,M,,N,,K,D* Synopsis for NMEA 0183 Rev 4.10: $VTG,,T,,M,,N,,K,D* Arguments: Table 115. $--VTG Message Field Description Parameter Format TalkerID String, 2 characters Description The talker ID (Fixed two characters). GP: If system works in GPS only mode GL: If system works in GLONASS only mode GA: If system works in GALILEO only mode BD: If system works in BEIDOU only mode QZ: If system works in QZSS only mode GN: If system works in multi-constellation mode. PNT-SG3FS GNSS Module Software User Guide 143
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