Orion NMEA User Manual
GPS Receiver Module
Micro Modular Technologies Pte. Ltd.
Page 4 of 25
No. 3, Ubi Avenue 3, #03-02 Crocodile House 408857 Singapore
Tel: 65-6745-8832 Fax: 65-6293-0661 Email: sales@micro-modular.com
www.micro-modular.com
3.2
GGA – GPS Fix Data
This sentence contains the position, time and quality of the navigation fix.
See RMC for Fix Status, Fix Mode, Fix Date, Speed, and True Course.
See GSA for Fix Type, PDOP, and VDOP.
$GPGGA,042626.001,3345.7471,N,11750.8451,W,1,04,8.7,32.28,M,,,,*16
Name
Description
Type
Example
MsgID
GGA Header
$GPGGA
FixTime
Fix Time (UTC)
hh.mmss.sss
042626.001
Lat
Latitude
ddmm.mmmm
3345.7471
LatDirection
N = North
S = South
N
Lon
Longitude
dddmm.mmmm
11750.8451
LonDirection
E = East
W = West
W
FixQuality
0 = No fix
1 = Valid Fix
1
SatsUsed
Number of satellites in solution
04
HDOP
Horizontal Dilution of Precision
8.7
Alt
Altitude (in meters)
(referenced to the Ellipsoid)
32.28
AltUnit
Altitude Unit (M = meters)
M
GeoSep
Geoidal Separation (in meters)
<null>
GeoSepUnit
Geoidal Separation Unit
<null>
DGPSage
DGPS age (in seconds)
<null>
DGPSstaID
DGPS Reference Station ID
<null>
ChkSum
Checksum
*16
EOL
NMEA end of line
<CR> <LF>
Table 3 – GGA Sentence Fields