NMEA-GN-GLL

Description:

Standard NMEA: Geographic position latitude and longitude. Latitude and longitude of vessel position, time of position fix and status.

Configuration:

• NMEA-GN-GLL_GNSS for combined (average) output from both receivers

  • The time and position data is the average between GNSS1 and GNSS2.

  • The positioning mode is from the “best” receiver

• NMEA-GN-GLL_GNSS1 for output from GNSS 1 receiver

  • This is the standard NMEA GLL for GNSS1.

• NMEA-GN-GLL_GNSS2 for output from GNSS 2 receiver

  • This is the standard NMEA GLL for GNSS2.

• NMEA-GN-GLL_FUSION for output from Fusion

  • The time and position data is from fusion

  • The positioning mode is:

    • When fusion is using GNSS: The GNSS state (RTK fixed, RTK float, SPP) of the best GNSS receiver.

    • When fusion not using GNSS: Dead-reckoning or no-fix depending on the state of fusion.

    • When fusion is not initialized: Not-valid, no matter the state of the GNSS receivers.

• NMEA-GP-GLL_GNSS, NMEA-GP-GLL_GNSS1, NMEA-GP-GLL_GNSS2 and NMEA-GP-GLL_FUSION

  • Legacy messages. These messages also have GN constellation but the talker ID is “GP”

Notes:

• These messages does not contain any information that would let one tell them apart. Do not enable more than one of these in the same port.

• This message is according to NMEA 0183 v4.11 (and erratas).

Example message:

$GNGLL,4724.01791,N,00827.02194,E,090924.00,A,D*62\r\n

Example message with non-standard high-precision fields:

$GNGLL,4724.0179042,N,00827.0219438,E,090411.0001,A,D*64\r\n

Message fields: