21
<12>
Mode indicator (only output if NMEA 2.30 active), A = Autonomous, D = Differential, E =
Estimated, N = Data not valid
4.2.8 Track Made Good and Ground Speed with GPS Talker ID (VTG)
The GPVTG sentence reports track and velocity information with a checksum:
$GPVTG,<1>,T,<2>,M,<3>,N,<4>,K,<5>*hh<CR><LF>
<1>
True course over ground, 000 to 359 degrees (leading zeros will be transmitted)
<2>
Magnetic course over ground, 000 to 359 degrees (leading zeros will be transmitted)
<3>
Speed over ground, 000.0 to 999.9 knots (leading zeros will be transmitted)
<4>
Speed over ground, 0000.0 to 1851.8 kilometers per hour (leading zeros will be transmitted)
<5>
Mode indicator (only output if NMEA 2.30 active), A = Autonomous, D = Differential, E =
Estimated, N = Data not valid
4.2.9 Geographic Position with LORAN Talker ID (LCGLL)
The LCGLL sentence reports position information.
$LCGLL,<1>,<2>,<3>,<4>,<5>,<6>,<7><CR><LF>
<1>
Latitude, ddmm.mmmm format (leading zeros will be transmitted)
<2>
Latitude hemisphere, N or S
<3>
Longitude, dddmm.mmmm format (leading zeros will be transmitted)
<4>
Longitude hemisphere, E or W
<5>
UTC time of position fix, hhmmss format
<6>
Status, A = Valid position, V = NAV receiver warning
<7>
Mode indicator (only output if NMEA 2.30 active), A = Autonomous, D = Differential, E =
Estimated, N = Data not valid
4.2.10 Track Made Good and Ground Speed with LORAN Talker ID (LCVTG)
The LCVTG sentence reports track and velocity information.
$LCVTG,<1>,T,<2>,M,<3>,N,<4>,K,<5><CR><LF>
<1>
True course over ground, 000 to 359 degrees (leading zeros will be transmitted)
<2>
Magnetic course over ground, 000 to 359 degrees (leading zeros will be transmitted)
<3>
Speed over ground, 000.0 to 999.9 knots (leading zeros will be transmitted)
<4>
Speed over ground, 0000.0 to 1851.8 kilometers per hour (leading zeros will be transmitted)
<5>
Mode indicator (only output if NMEA 2.30 active), A = Autonomous, D = Differential, E =
Estimated, N = Data not valid
4.2.11
Estimated Error Information (PGRME)
The GARMIN Proprietary sentence $PGRME reports estimated position error information.
$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
4.2.12
GPS Fix Data Sentence (PGRMF)
The sentence $PGRMF is GARMIN Proprietary format.
