data 2

  • MPC1056-dat

  • location-dat - GNSS-dat - GPS-dat - nema-dat

    $GPRMC,140037.00,A,2234.27140,N,11353.24961,E,0.455,,170126,,,D79 $GPVTG,,T,,M,0.455,N,0.844,K,D2A $GPGGA,140037.00,2234.27140,N,11353.24961,E,2,04,1.86,80.5,M,-2.9,M,,000074 $GPGSA,A,3,05,11,12,13,,,,,,,,,6.80,1.86,6.5400 $GPGSV,3,1,09,05,51,274,43,09,09,040,,11,49,006,20,12,32,252,227F $GPGSV,3,2,09,13,28,177,16,29,06,321,19,30,04,114,16,42,53,228,387D $GPGSV,3,3,09,50,60,149,4F $GPGLL,2234.27140,N,11353.24961,E,140037.00,A,D67 $GPTXT,01,01,01,NMEA unknown msg*58

$GPRMC,140037.00,A,2234.27140,N,11353.24961,E,0.455,,170126,,,D*79

  • UTC Time: 14:00:37
  • Status: A (Valid fix)
  • Latitude: 22°34.27140′ N
  • Longitude: 113°53.24961′ E
  • Speed: 0.455 knots ≈ 0.84 km/h
  • Date: 2026-01-17
  • Mode: D (Differential GPS)

data

AT+QGNSSRD?
+QGNSSRD: $GNRMC,075620.000,A,2234.2809,N,11353.2465,E,0.20,253.84,140525,,,A*7F
$GNVTG,253.84,T,,M,0.20,N,0.38,K,A*22
$GNGGA,075620.000,2234.2809,N,11353.2465,E,1,12,0.91,52.5,M,-2.9,M,,*5F
$GPGSA,A,3,12,19,13,15,05,29,194,06,,,,,1.20,0.91,0.79*3E
$BDGSA,A,3,03,10,07,13,,,,,,,,,1.20,0.91,0.79*11
$GPGSV,3,1,10,50,59,148,30,13,55,166,44,05,52,310,38,15,29,211,34*7F
$GPGSV,3,2,10,06,27,091,27,29,22,320,20,12,19,232,35,19,12,149,24*70
$GPGSV,3,3,10,194,,,31,195,,,30*78
$BDGSV,4,1,14,10,65,231,36,03,64,189,38,07,63,205,37,08,52,325,*6F
$BDGSV,4,2,14,13,49,300,42,01,48,121,,02,47,236,,04,34,107,*6D
$BDGSV,4,3,14,05,23,254,,16,12,169,,06,10,176,,09,04,188,*6C
$BDGSV,4,4,14,11,01,318,,12,,,20*57
$GNGLL,2234.2809,N,11353.2465,E,075620.000,A,A*45

OK
  • +QGNSSRD: $GNRMC,075620.000,A,2234.2809,N,11353.2465,E,0.20,253.84,140525,,,A*7F: Recommended Minimum GNSS data: Fix at 07:56:20.000 UTC, Lat 22°34.2809'N, Lon 113°53.2465'E, speed 0.2 knots, course 253.84°, date 14/05/2025, valid, autonomous.
  • $GNVTG,253.84,T,,M,0.20,N,0.38,K,A*22: Course Over Ground and Ground Speed: Course 253.84° True, speed 0.20 knots (0.38 km/h), autonomous.
  • $GNGGA,075620.000,2234.2809,N,11353.2465,E,1,12,0.91,52.5,M,-2.9,M,,*5F: Global Positioning System Fix Data: Fix at 07:56:20.000 UTC, Lat/Lon, quality 1 (GPS fix), 12 satellites, HDOP 0.91, altitude 52.5m.
  • $GPGSA,A,3,12,19,13,15,05,29,194,06,,,,,1.20,0.91,0.79*3E: GPS DOP and Active Satellites: Automatic 3D fix, using 8 GPS satellites (IDs listed), PDOP 1.20, HDOP 0.91, VDOP 0.79.
  • $BDGSA,A,3,03,10,07,13,,,,,,,,,1.20,0.91,0.79*11: BeiDou DOP and Active Satellites: Automatic 3D fix, using 4 BeiDou satellites (IDs listed), PDOP 1.20, HDOP 0.91, VDOP 0.79.
  • $GPGSV,3,1,10,50,59,148,30,13,55,166,44,05,52,310,38,15,29,211,34*7F: GPS Satellites in View (message 1 of 3): 10 GPS satellites total, details for 4 (IDs 50, 13, 05, 15).
  • $GPGSV,3,2,10,06,27,091,27,29,22,320,20,12,19,232,35,19,12,149,24*70: GPS Satellites in View (message 2 of 3): Details for 4 more GPS satellites (IDs 06, 29, 12, 19).
  • $GPGSV,3,3,10,194,,,31,195,,,30*78: GPS Satellites in View (message 3 of 3): Details for the last 2 GPS satellites (IDs 194, 195).
  • $BDGSV,4,1,14,10,65,231,36,03,64,189,38,07,63,205,37,08,52,325,*6F: BeiDou Satellites in View (message 1 of 4): 14 BeiDou satellites total, details for 4 (IDs 10, 03, 07, 08).
  • $BDGSV,4,2,14,13,49,300,42,01,48,121,,02,47,236,,04,34,107,*6D: BeiDou Satellites in View (message 2 of 4): Details for 4 more BeiDou satellites (IDs 13, 01, 02, 04).
  • $BDGSV,4,3,14,05,23,254,,16,12,169,,06,10,176,,09,04,188,*6C: BeiDou Satellites in View (message 3 of 4): Details for 4 more BeiDou satellites (IDs 05, 16, 06, 09).
  • $BDGSV,4,4,14,11,01,318,,12,,,20*57: BeiDou Satellites in View (message 4 of 4): Details for the last 2 BeiDou satellites (IDs 11, 12).
  • $GNGLL,2234.2809,N,11353.2465,E,075620.000,A,A*45: Geographic Position (Latitude/Longitude): Fix at 07:56:20.000 UTC, Lat 22°34.2809'N, Lon 113°53.2465'E, data valid, autonomous mode.

+QGNSSRD: $GNRMC,075620.000,A,2234.2809,N,11353.2465,E,0.20,253.84,140525,,,A*7F

This line is the response from the module, starting with the NMEA RMC sentence.

  • +QGNSSRD:: Indicates this is a response to the AT+QGNSSRD? command.
  • $GNRMC: NMEA sentence type.
    • GN: Indicates a combined GNSS fix (e.g., GPS, GLONASS, Galileo, BeiDou).
    • RMC: Recommended Minimum Specific GNSS Data.
  • 075620.000: UTC Time of fix: 07:56:20.000.
  • A: Status: A = Active (data valid). V = Void (data not valid).
  • 2234.2809,N: Latitude: 22 degrees, 34.2809 minutes North.
  • 11353.2465,E: Longitude: 113 degrees, 53.2465 minutes East.
  • 0.20: Speed over ground in knots.
  • 253.84: Course over ground in degrees (True).
  • 140525: Date: 14th May 2025 (DDMMYY format).
  • ,,,: Magnetic variation (degrees, E/W) - field is empty, not provided.
  • A: Mode indicator (NMEA 0183 v2.3 and later): A = Autonomous mode. D = Differential mode. E = Estimated (dead reckoning) mode. N = Data not valid.
  • *7F: Checksum for data integrity (hexadecimal).

$GNVTG,253.84,T,,M,0.20,N,0.38,K,A*22

This is the VTG (Course Over Ground and Ground Speed) sentence.

  • $GNVTG: NMEA sentence type.
    • GN: Combined GNSS.
    • VTG: Course Over Ground and Ground Speed.
  • 253.84,T: Course over ground (degrees True). T indicates True North.
  • ,,M: Course over ground (degrees Magnetic). M indicates Magnetic North - field is empty, not provided.
  • 0.20,N: Speed over ground in knots. N indicates Knots.
  • 0.38,K: Speed over ground in kilometers per hour. K indicates Kilometers per hour.
  • A: Mode indicator (NMEA 0183 v2.3 and later): A = Autonomous. D = Differential. E = Estimated. N = Data not valid.
  • *22: Checksum.

$GNGGA,075620.000,2234.2809,N,11353.2465,E,1,12,0.91,52.5,M,-2.9,M,,*5F

This is the GGA (Global Positioning System Fix Data) sentence.

  • $GNGGA: NMEA sentence type.
    • GN: Combined GNSS.
    • GGA: Global Positioning System Fix Data.
  • 075620.000: UTC Time of fix.
  • 2234.2809,N: Latitude.
  • 11353.2465,E: Longitude.
  • 1: Fix quality:
    • 0 = Invalid
    • 1 = GPS fix (SPS)
    • 2 = DGPS fix
    • 3 = PPS fix
    • 4 = Real Time Kinematic
    • 5 = Float RTK
    • 6 = Estimated (dead reckoning)
    • 7 = Manual input mode
    • 8 = Simulation mode
  • 12: Number of satellites being tracked.
  • 0.91: Horizontal Dilution of Precision (HDOP).
  • 52.5,M: Altitude of antenna above mean sea level. M indicates Meters.
  • -2.9,M: Geoidal separation (difference between WGS-84 earth ellipsoid and mean sea level). M indicates Meters.
  • ,,: Age of DGPS data (seconds since last SC104 type 1 or 9 update) - field is empty. DGPS station ID number - field is empty.
  • *5F: Checksum.

$GPGSA,A,3,12,19,13,15,05,29,194,06,,,,,1.20,0.91,0.79*3E

This is the GSA (GNSS DOP and Active Satellites) sentence, specifically for GPS satellites.

  • $GPGSA: NMEA sentence type.
    • GP: GPS satellites.
    • GSA: GNSS DOP and Active Satellites.
  • A: Mode: M = Manual, forced to operate in 2D or 3D mode. A = Automatic, allowed to automatically switch 2D/3D.
  • 3: Fix type: 1 = Fix not available. 2 = 2D. 3 = 3D.
  • 12,19,13,15,05,29,194,06,,,,,: PRNs (Pseudo-Random Noise codes) of satellites used in fix (up to 12). Here, GPS satellites with PRNs 12, 19, 13, 15, 05, 29, 194, and 06 are used.
  • 1.20: Position Dilution of Precision (PDOP).
  • 0.91: Horizontal Dilution of Precision (HDOP).
  • 0.79: Vertical Dilution of Precision (VDOP).
  • *3E: Checksum.

$BDGSA,A,3,03,10,07,13,,,,,,,,,1.20,0.91,0.79*11

This is the GSA sentence, specifically for BeiDou satellites.

  • $BDGSA: NMEA sentence type.
    • BD: BeiDou satellites.
    • GSA: GNSS DOP and Active Satellites.
  • A: Mode: A = Automatic.
  • 3: Fix type: 3 = 3D.
  • 03,10,07,13,,,,,,,,,: PRNs of BeiDou satellites used in fix. Here, BeiDou satellites with PRNs 03, 10, 07, and 13 are used.
  • 1.20: PDOP.
  • 0.91: HDOP.
  • 0.79: VDOP.
  • *11: Checksum.

$GPGSV,3,1,10,50,59,148,30,13,55,166,44,05,52,310,38,15,29,211,34*7F

This is the GSV (GNSS Satellites in View) sentence, specifically for GPS satellites. This is the first message of three.

  • $GPGSV: NMEA sentence type.
    • GP: GPS satellites.
    • GSV: GNSS Satellites in View.
  • 3: Total number of GSV messages for current data (this is message 1 of 3 for GPS).
  • 1: Message number (this is the first message).
  • 10: Total number of GPS satellites in view.
  • For each satellite (up to 4 per message):
    • 50: Satellite PRN number (ID 50).
    • 59: Elevation in degrees (max 90).
    • 148: Azimuth in degrees (True, 0-359).
    • 30: SNR (Signal to Noise Ratio) in dB (00-99), null when not tracking.
    • 13,55,166,44: Satellite ID 13, Elevation 55, Azimuth 166, SNR 44.
    • 05,52,310,38: Satellite ID 05, Elevation 52, Azimuth 310, SNR 38.
    • 15,29,211,34: Satellite ID 15, Elevation 29, Azimuth 211, SNR 34.
  • *7F: Checksum.

$GPGSV,3,2,10,06,27,091,27,29,22,320,20,12,19,232,35,19,12,149,24*70

Second GSV message for GPS satellites (message 2 of 3).

  • $GPGSV: GPS Satellites in View.
  • 3: Total number of GSV messages.
  • 2: Message number.
  • 10: Total number of GPS satellites in view.
  • Satellite data:
    • 06,27,091,27: ID 06, El 27, Az 091, SNR 27.
    • 29,22,320,20: ID 29, El 22, Az 320, SNR 20.
    • 12,19,232,35: ID 12, El 19, Az 232, SNR 35.
    • 19,12,149,24: ID 19, El 12, Az 149, SNR 24.
  • *70: Checksum.

$GPGSV,3,3,10,194,,,31,195,,,30*78

Third GSV message for GPS satellites (message 3 of 3).

  • $GPGSV: GPS Satellites in View.
  • 3: Total number of GSV messages.
  • 3: Message number.
  • 10: Total number of GPS satellites in view.
  • Satellite data for the remaining 2 GPS satellites:
    • 194,,,31: ID 194, Elevation and Azimuth not provided, SNR 31.
    • 195,,,30: ID 195, Elevation and Azimuth not provided, SNR 30.
  • *78: Checksum.

$BDGSV,4,1,14,10,65,231,36,03,64,189,38,07,63,205,37,08,52,325,*6F

This is the GSV sentence for BeiDou satellites. This is the first message of four.

  • $BDGSV: NMEA sentence type.
    • BD: BeiDou satellites.
    • GSV: GNSS Satellites in View.
  • 4: Total number of GSV messages for BeiDou data.
  • 1: Message number.
  • 14: Total number of BeiDou satellites in view.
  • Satellite data:
    • 10,65,231,36: ID 10, El 65, Az 231, SNR 36.
    • 03,64,189,38: ID 03, El 64, Az 189, SNR 38.
    • 07,63,205,37: ID 07, El 63, Az 205, SNR 37.
    • 08,52,325,: ID 08, El 52, Az 325, SNR not provided (field ends before SNR).
  • *6F: Checksum. (Note: The line in the example seems to be truncated for the last satellite's SNR, which might affect checksum if it was fully present).

$BDGSV,4,2,14,13,49,300,42,01,48,121,,02,47,236,,04,34,107,*6D

Second GSV message for BeiDou satellites (message 2 of 4).

  • $BDGSV: BeiDou Satellites in View.
  • 4: Total number of GSV messages.
  • 2: Message number.
  • 14: Total number of BeiDou satellites in view.
  • Satellite data:
    • 13,49,300,42: ID 13, El 49, Az 300, SNR 42.
    • 01,48,121,,: ID 01, El 48, Az 121, SNR not provided.
    • 02,47,236,,: ID 02, El 47, Az 236, SNR not provided.
    • 04,34,107,: ID 04, El 34, Az 107, SNR not provided.
  • *6D: Checksum.

$BDGSV,4,3,14,05,23,254,,16,12,169,,06,10,176,,09,04,188,*6C

Third GSV message for BeiDou satellites (message 3 of 4).

  • $BDGSV: BeiDou Satellites in View.
  • 4: Total number of GSV messages.
  • 3: Message number.
  • 14: Total number of BeiDou satellites in view.
  • Satellite data:
    • 05,23,254,,: ID 05, El 23, Az 254, SNR not provided.
    • 16,12,169,,: ID 16, El 12, Az 169, SNR not provided.
    • 06,10,176,,: ID 06, El 10, Az 176, SNR not provided.
    • 09,04,188,: ID 09, El 04, Az 188, SNR not provided.
  • *6C: Checksum.

$BDGSV,4,4,14,11,01,318,,12,,,20*57

Fourth GSV message for BeiDou satellites (message 4 of 4).

  • $BDGSV: BeiDou Satellites in View.
  • 4: Total number of GSV messages.
  • 4: Message number.
  • 14: Total number of BeiDou satellites in view.
  • Satellite data for the remaining 2 BeiDou satellites:
    • 11,01,318,,: ID 11, El 01, Az 318, SNR not provided.
    • 12,,,20: ID 12, Elevation and Azimuth not provided, SNR 20.
  • *57: Checksum.

$GNGLL,2234.2809,N,11353.2465,E,075620.000,A,A*45

This is the GLL (Geographic Position - Latitude/Longitude) sentence.

  • $GNGLL: NMEA sentence type.
    • GN: Combined GNSS.
    • GLL: Geographic Position - Latitude/Longitude.
  • 2234.2809,N: Latitude: 22 degrees, 34.2809 minutes North.
  • 11353.2465,E: Longitude: 113 degrees, 53.2465 minutes East.
  • 075620.000: UTC Time of fix.
  • A: Status: A = Data valid. V = Data invalid.
  • A: Mode indicator (NMEA 0183 v2.3 and later): A = Autonomous. D = Differential. E = Estimated. N = Data not valid.
  • *45: Checksum.

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