Rainbow Electronics EB-A801 User Manual
Page 13
EB-A801 User’s Manual V1.0
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C.
http://www.emt.com.tw
13
5.3 $GPGGA
GGA--- Global Positioning System Fixed Data
Table 2 contains the values for the following example:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18
Table 2 GGA Data Format
Name
Example
Units
Description
Message ID
$GPGGA
GGA protocol header
UTC Position
161229.487
hhmmss.sss
Latitude 3723.2475
ddmm.mmmm
N/S Indicator
N
N=north or S=south
Longitude 12158.3416
dddmm.mmmm
E/W Indicator
W
E=east or W=west
Position Fix
Indicator
1
See
Table
3
Satellites Used
07
Range 0 to 12
HDOP
1.0
Horizontal Dilution of Precision
MSL Altitude
9.0
meters
Units M
meters
Geoid Separation
meters
Units M
meters
Age of Diff. Corr.
second Null fields when DGPS is not used
Diff. Ref. Station
ID
0000
Checksum *18
End of message termination
Table 3 Position Fix Indicator
Value
Description
0
Fix not available or invalid
1
GPS SPS Mode, fix valid
2
Differential GPS, SPS Mode, fix valid
3
GPS PPS Mode, fix valid