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GGA – GPS Fix Data
Position fix related data, such as position, time, number of satellites in use, etc..
$GPGGA,gga1,gga2,gga3,gga4,gga5,gga6,gga7,gga8,gga9,gga10,gga11,gga12,gga
13,gga14*hh<CR><LF>
Parameters Descriptions Notes
gga1 UTC time as position is fixed hhmmss.ss: hh – hour; mm –
minute; ss.ss – second
gga2 Latitude ddmm.mmmmm: dd – degree;
mm.mmmmm – minute (0
o
~ 90
o
)
gga3 Latitude sector N – North; S - South
gga4 Longitude dddmm.mmmmm: dd – degree;
mm.mmmmm – minute (0
o
~ 180
o
)
gga5 Longitude sector E – East; W - West
gga6 GPS quality indicator 0 – No fixed or invalid position
1 – SPS Position available
2 – Differential GPS (SPS)
6 – Estimated position (DR)
gga7 Number of SVs used in position
estimation
xx: 00 ~ 12
gga8 HDOP xx.x: 00.0 ~ 99.9
gga9 Altitude above mean sea level
(geoid)
gga10 Unit for Altitude M: meter
gga11 Geoidal separation
gga12 Unit for geoidal separation M: meter
gga13 Age of differential corrections unit : second; null when DGPS is
not used
gga14 Reference station ID (DGPS) xxxx: 0000 ~ 1023
hh Checksum hex number (2 – character)
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