Standard NMEA: GNSS DOP and active satellites.
NMEA-GN-GSA_GNSS for combined (average) output from both receivers
Operation and navigation modes are taken from the “best” receiver
The list of satellite IDs contains the union of satellites used by GNSS1 and GNSS2
The PDOP, HDOP and VDOP are the averages of the respective values of the two receivers
NMEA-GN-GSA_GNSS1 for output from GNSS 1 receiver
This is the standard NMEA GSA for GNSS1.
NMEA-GN-GSA_GNSS2 for output from GNSS 2 receiver
This is the standard NMEA GSA for GNSS2.
NMEA-GN-GSA_FUSION for output from Fusion
Operation and navigation modes are taken from the “best” receiver
The list of satellite IDs contains the union of satellites used by GNSS1 and GNSS2
The PDOP, HDOP and VDOP are the averages of the respective values of the two receivers
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).
This message uses the “GN” talker ID and NMEA v4.11 satellite numbering.
(One epoch)
$GNGSA,A,3,04,06,07,09,11,16,20,30,,,,,0.98,0.49,0.85,1*0Arn
$GNGSA,A,3,67,68,69,76,77,78,83,84,,,,,0.98,0.49,0.85,2*0Arn
$GNGSA,A,3,02,03,07,08,13,15,25,26,,,,,0.98,0.49,0.85,3*09rn
$GNGSA,A,3,09,14,24,26,27,28,33,,,,,,0.98,0.49,0.85,4*04rn
| # | Field | Format | Unit | Nullable | Example | Description |
|---|---|---|---|---|---|---|
| 1 | mode_op |
|
- |
N |
|
Operation mode: always |
| 2 | mode_nav |
|
- |
N |
|
Navigation mode: |
| 3..14 | ids |
|
- |
Y |
|
ID numbers of satellites used in solution. See the NMEA 0183 version 4.11 standard document. |
| 15 | pdop |
|
- |
Y |
|
Position dillution of precision |
| 16 | hdop |
|
- |
Y |
|
Horizontal dillution of precision |
| 17 | vdop |
|
- |
Y |
|
Vertical dillution of precision |
| 18 | gnss_id |
|
- |
Y |
|
GNSS system ID: |