Garmin GPS 19x HVS Technical Specifications - page 19
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4.2.7 GPS and GLONASS Satellites in View (GPGSV and GLGSV)
$..GSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,...<4>,<5>,<6>,<7>*hh
<1>
Total number of GSV sentences to be transmitted
<2>
Number of current GSV sentence
<3>
Total number of satellites in view, 00 to 12 (leading zeros will be transmitted)
<4>
Satellite PRN number, 01 to 32 (leading zeros will be transmitted)
<5>
Satellite elevation, 00 to 90 degrees (leading zeros will be transmitted)
<6>
Satellite azimuth, 000 to 359 degrees, true (leading zeros will be transmitted)
<7>
Signal to noise ratio (C/No) 00 to 99 dB (leading zeros will be transmitted)
Note: Items <4>,<5>,<6>, and <7> repeat for each satellite in view to a maximum of four (4) satellites per sentence.
4.2.8 Recommended Minimum Specific GPS/TRANSIT Data (RMC)
$..RMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*hh
<1>
UTC time of position fix, hhmmss format for GPS 19x HVS
<2>
Status, A = Valid position, V = NAV receiver warning
<3>
Latitude, ddmm.mmmm format for GPS 19x HVS (leading zeros must be transmitted)
<4>
Latitude hemisphere, N or S
<5>
Longitude, dddmm.mmmm format for GPS 19x HVS leading zeros must be transmitted)
<6>
Longitude hemisphere, E or W
<7>
Speed over ground, GPS 19x HVS: 000.0 to 999.9 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
4.2.9 Track Made Good and Ground Speed (VTG)
$..VTG,<1>,T,<2>,M,<3>,N,<4>,K,<5>*hh
<1>
True course over ground, GPS 19x HVS: 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, GPS 19x HVS: 000.0 to 999.9 knots (leading zeros will be transmitted)
<4>
Speed over ground, GPS 19x HVS: 0000.0 to 1851.8 kilometers per hour (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
4.2.10 Geographic Position (GLL)
$..GLL,<1>,<2>,<3>,<4>,<5>,<6>,<7>*hh
<1>
Latitude, ddmm.mmmm format for GPS 19x HVS (leading zeros must be transmitted)
<2>
Latitude hemisphere, N or S
<3>
Longitude, dddmm.mmmm format for GPS 19x HVS (leading zeros must be transmitted)
<4>
Longitude hemisphere, E or W
<5>
UTC time of position fix, hhmmss format for GPS 19x HVS
<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, E = Estimated, N = Data not valid