Table 3-3: GGA Data Format
Name
Header
Talker ID
Sentence ID
UTC Time
Latitude
N/S Indicator
Longitude
E/W Indicator
Quality Indicator
Number of satellites in
use
HDOP
MSL Altitude
Units
Geoidal Separation
Units
Age f DGPS Data
Differential reference
station ID
Checksum
<CR><LF>
Rev 4.0 Jul.20
GGA—Time, Position and Related Data of
Navigation Fix
Table 3-3
explains the sentence below.
GPS satellite or GPS and GLONASS satellites:
$GPGGA,185942.00,3732.999923,N,12658.999901,E,1,12,0.7,
-18.1,M,18.3,M,x.x,xxxx*79
Example
Units
$
GP
GGA
080105.08
2459.9326
N
12127.4423
E
1
12
1.0
14.7
meters
M
meters
17.0
meters
M
meters
x.x
second
xxxx
*5C
19
Description
GP: Using only GPS for positioning
GL: Using only GLONASS for positioning
GA: Using only Galileo for positioning
BD: Using only BeiDou for positioning
GQ: Using only QZSS for positioning
GN: Using combined satellite systems for positioning
hh [hr] mm [min] ss.ss [sec]
dd [deg] mm.mmmm [min]
N: North latitude or S: South latitude
dd [deg] mm.mmmm [min]
E: East longitude or W: West longitude
See
Table 3-4
Horizontal Dilution of Precision
Antenna Altitude above / below mean sea-level
Units of antenna altitude
Units of geoids separation
Null fields when DGPS is not used
Null fields when DGPS is not used
End of message termination
Protocols
41113354