GGA 2.x Global Positioning System Fix Data
NMEA format version 2.x GGA contains the latitude and longitude of the target and is the most commonly used format for shipboard navigation. The drawback of this format is that it does not give a target number or depth. The main difference between format 2.x and format 1.x is that format 2.x gives the UTC of position in hours minutes and seconds format. The GGA 2.x text string is appropriate to use as serial output when the IPS software is being used primarily for ship navigation. If a GGA text string has been selected for serial output only the GGA data received from the target selected as target ID in SETUP->Serial Out Command will be used as serial output. See the field definitions section in the NMEA version 2.x manual for more detailed information.
Note:
• The IPS software disregards the last two fields in the NMEA format 2.x GGA version for both serial input and output.
• The serial output of target location data in the 2.x GGA strings created by IPS will always be with regard to the hydrophone location independent of the reference (R) location.
1 2 3 4 5 6 7 8 9 10 11 12
GPGGA, 221024.15 ,2619.307,N,08005.280,W,1,6,01.0,000027.5,M,00027.5,M*76
1. UTC of position.
2. GPS of Latitude.
3. Latitude N. or S.
4. GPS Longitude.
5. Longitude E or W.
6. GPS quality indicator.
7. Number of GPS satellites being used.
8. Horizontal dilution of precision (HDOP).
9. Antenna height.
10. Antenna height units.
11. Geoidal Height
12. Geoidal Height Units.