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7.3.2 GGA
$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh
Sample data：$GPGGA,065545.789,2109.9551,N,12023.4047,E,1,9,0.85,18.1,M,8.0,M,,*5E
Name
message ID
UTC time
latitude
N/S indication
longitude
E/W indication
Positioning instructions
number of satellites
HDOP
MSL amplitude
unit
the earth
unit
differential time
Differential ID
checksum
<CR><LF>
7.3.3 GSA
$--GSA,a,a,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x.x,x.x,x.x*hh
Sample data：$GPGSA,A,3,10,24,12,32,25,21,15,20,31,,,,1.25,0.85,0.91*04
Name
message ID
Mode 1
Mode 2
satellite use
satellite use
satellite use
satellite use
satellite use
satellite use
satellite use
satellite use
...
satellite use
PDOP
HDOP
VDOP
checksum
<CR><LF>
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Example
Unit
$GPGGA
065545.789
2109.9551
N
12023.4047
E
9
0.85
18.1
M
-2.2
M
8.0
0000
*5E
Example
Unit
$GPGS
A
3
10
24
12
32
25
21
15
20
...
...
1.25
0.85
0.91
*04
GGA protocol header
N=North, S=South
1: SPS mode, positioning is valid
2: Differential, SPS mode, positioning is valid
3: PPS mode, positioning is valid
Horizontal accuracy
M
M
M
S
Invalid when there is no DGPS
GSA protocol header
M=manual, force in 2D or 3D mode
A=Auto
1: Positioning invalid; 2: 2D positioning; 3: 3D
Horizontal accuracy
E108-GN User Manual
Description
hhmmss.sss
ddmm.mmmm
dddmm.mmmm
W=west, E=east
0: not located
Range 0 to 12
-
End of message
Description
positioning
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
...
Channel 12
Position accuracy
vertical accuracy
End of message
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