Garmin GPS 18x Technical Specifications - Page 22

Recommended Minimum Specific GPS/TRANSIT Data RMC, Track Made Good and Ground Speed VTG, Geographic - gps 18 pc

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4.2.7 Recommended Minimum Specific GPS/TRANSIT Data (RMC) $GPRMC,,,,,,,,,,,,*hh UTC time of position fix, hhmmss format for GPS 18x PC/LVC; hhmmss.s format for GPS 18x-5Hz Status, A = Valid position, V = NAV receiver warning Latitude, ddmm.mmmm format for GPS 18x PC/LVC; ddmm.mmmmm format for GPS 18x5Hz (leading zeros must be transmitted) Latitude hemisphere, N or S Longitude, dddmm.mmmm format for GPS 18x PC/LVC; dddmm.mmmmm format for GPS 18x-5Hz (leading zeros must be transmitted) Longitude hemisphere, E or W Speed over ground, GPS 18x PC and LVC: 000.0 to 999.9 knots, GPS 18x-5Hz: 000.00 to 999.99 knots (leading zeros will be transmitted) Course over ground, 000.0 to 359.9 degrees, true (leading zeros will be transmitted) UTC date of position fix, ddmmyy format Magnetic variation, 000.0 to 180.0 degrees (leading zeros will be transmitted) Magnetic variation direction, E or W (westerly variation adds to true course) Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous, D = Differential, E = Estimated, N = Data not valid 4.2.8 Track Made Good and Ground Speed (VTG) $GPVTG,,T,,M,,N,,K,*hh True course over ground, GPS 18x PC and LVC: 000 to 359 degrees, GPS 18x-5Hz: 000.0 to 359.9 degrees(leading zeros will be transmitted) Magnetic course over ground, 000 to 359 degrees, GPS 18x-5Hz: 000.0 to 359.9 degrees(leading zeros will be transmitted) Speed over ground, GPS 18x PC and LVC: 000.0 to 999.9 knots, GPS 18x-5Hz: 000.00 to 999.99 knots (leading zeros will be transmitted) Speed over ground, GPS 18x PC and LVC: 0000.0 to 1851.8 kilometers per hour, GPS 18x5Hz: 0000.00 to 1851.89 (leading zeros will be transmitted) Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous, D = Differential, E = Estimated, N = Data not valid 4.2.9 Geographic Position (GLL) $GPGLL,,,,,,,*hh Latitude, ddmm.mmmm format for GPS 18x PC/LVC; ddmm.mmmmm format for GPS 18x5Hz (leading zeros must be transmitted) Latitude hemisphere, N or S Longitude, dddmm.mmmm format for GPS 18x PC/LVC; dddmm.mmmmm format for GPS 18x-5Hz (leading zeros must be transmitted) Longitude hemisphere, E or W UTC time of position fix, hhmmss format for GPS 18x PC/LVC; hhmmss.s format for GPS 18x-5Hz Status, A = Valid position, V = NAV receiver warning Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous, D = Differential (WAAS), E = Estimated, N = Data not valid 4.2.10 Estimated Error Information (PGRME) $PGRME,,M,,M,,M*hh Estimated horizontal position error (HPE), 0.0 to 999.9 meters Estimated vertical position error (VPE), 0.0 to 999.9 meters Estimated position error (EPE), 0.0 to 999.9 meters 190-00879-08 GPS 18x Technical Specifications Page 18 Rev. B

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190-00879-08
GPS 18x Technical Specifications
Rev. B
Page 18
4.2.7
Recommended Minimum Specific GPS/TRANSIT Data (RMC)
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*hh<CR><LF>
<1>
UTC time of position fix, hhmmss format for GPS 18x PC/LVC;
hhmmss.s format for GPS 18x-5Hz
<2>
Status, A = Valid position, V = NAV receiver warning
<3>
Latitude, ddmm.mmmm format for GPS 18x PC/LVC; ddmm.mmmmm format for GPS 18x-
5Hz (leading zeros must be transmitted)
<4>
Latitude hemisphere, N or S
<5>
Longitude, dddmm.mmmm format for GPS 18x PC/LVC; dddmm.mmmmm format for GPS
18x-5Hz (leading zeros must be transmitted)
<6>
Longitude hemisphere, E or W
<7>
Speed over ground, GPS 18x PC and LVC: 000.0 to 999.9 knots, GPS 18x-5Hz: 000.00 to
999.99 knots (leading zeros will be transmitted)
<8>
Course over ground, 000.0 to 359.9 degrees, true (leading zeros will be transmitted)
<9>
UTC date of position fix, ddmmyy format
<10>
Magnetic variation, 000.0 to 180.0 degrees (leading zeros will be transmitted)
<11>
Magnetic variation direction, E or W (westerly variation adds to true course)
<12>
Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous,
D = Differential, E = Estimated, N = Data not valid
4.2.8
Track Made Good and Ground Speed (VTG)
$GPVTG,<1>,T,<2>,M,<3>,N,<4>,K,<5>*hh<CR><LF>
<1>
True course over ground, GPS 18x PC and LVC: 000 to 359 degrees, GPS 18x-5Hz: 000.0 to
359.9 degrees(leading zeros will be transmitted)
<2>
Magnetic course over ground, 000 to 359 degrees, GPS 18x-5Hz: 000.0 to 359.9
degrees(leading zeros will be transmitted)
<3>
Speed over ground, GPS 18x PC and LVC: 000.0 to 999.9 knots, GPS 18x-5Hz: 000.00 to
999.99 knots (leading zeros will be transmitted)
<4>
Speed over ground, GPS 18x PC and LVC: 0000.0 to 1851.8 kilometers per hour, GPS 18x-
5Hz: 0000.00 to 1851.89 (leading zeros will be transmitted)
<5>
Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous,
D = Differential, E = Estimated, N = Data not valid
4.2.9
Geographic Position (GLL)
$GPGLL,<1>,<2>,<3>,<4>,<5>,<6>,<7>*hh<CR><LF>
<1>
Latitude, ddmm.mmmm format for GPS 18x PC/LVC; ddmm.mmmmm format for GPS 18x-
5Hz (leading zeros must be transmitted)
<2>
Latitude hemisphere, N or S
<3>
Longitude, dddmm.mmmm format for GPS 18x PC/LVC; dddmm.mmmmm format for GPS
18x-5Hz (leading zeros must be transmitted)
<4>
Longitude hemisphere, E or W
<5>
UTC time of position fix, hhmmss format for GPS 18x PC/LVC; hhmmss.s format for GPS
18x-5Hz
<6>
Status, A = Valid position, V = NAV receiver warning
<7>
Mode indicator (only output if NMEA 0183 version 2.30 active), A = Autonomous,
D = Differential (WAAS), E = Estimated, N = Data not valid
4.2.10
Estimated Error Information (PGRME)
$PGRME,<1>,M,<2>,M,<3>,M*hh<CR><LF>
<1>
Estimated horizontal position error (HPE), 0.0 to 999.9 meters
<2>
Estimated vertical position error (VPE), 0.0 to 999.9 meters
<3>
Estimated position error (EPE), 0.0 to 999.9 meters