C
ONFIGURATION
C
OMMAND
S
ET
- F
IRMWARE
R
EVISION
2.4.0_
BETA
-
V
ERSION
1.0.0
6.5.1.1
$GPGGA message
The $GPGGA message includes time, position, GPS quality and number of satellites in
use.
Example:
$GPGGA,133726.569,5040.4365,N,01058.5646,E,1,03,8.9,92.9,M,,,,0000*3F
Field
Format
Example
Description
1
$GPGGA
$GPGGA
Start of sentence
2
hhmmss.ss
133726.569
UTC time
3
ddmm.mmmm
5040.4365
Latitude
4
a
N
Latitude direction (N/S)
5
dddmm.mmmm
01058.5646
Longitude
6
a
E
Longitude direction (W/E)
7
x
1
GPS fix quality:
0: invalid
1: GPS fix
2: DGPS fix
8
xx
03
Number of satellites in use
9
x.x
8.9
Horizontal dilution of precision (relative accuracy of
horizontal position)
10
x.x
92.9
Altitude above mean sea level (geoid)
11
M
M
Altitude units (meters)
12
x.x
Height of geoid above earth ellipsoid
13
M
Geoid height units (meters)
14
x
Time since last DGPS update (seconds)
15
xxxx
0000
DGPS reference station ID
16
*hh
*3F
Checksum
17
<CR><LF>
End of message termination
Table 50:
The GPGGA message data format.
6.5.1.2
$GPRMC message
The $GPRMC message includes time, date, position, course and speed data.
Example:
$GPRMC,133725.569,A,5040.4365,N,01058.5650,E,0.05,302.98,251004,,
*00
Field
Format
Example
Description
1
$GPRMC
$GPRMC
Start of sentence
2
hhmmss.ss
133725.569
UTC time
3
a
A
Position validity (A: valid, V: invalid)
4
ddmm.mmmm
5040.4365
Latitude
5
a
N
Latitude direction (N/S)
6
dddmm.mmmm
01058.5650
Longitude
7
a
E
Longitude direction (W/E)
8
x.x
0.05
Speed (knots)
9
x.x
302.98
Heading (degrees)
10
ddmmyy
251004
Date
11
x.x
Magnetic variation (degrees)
12
a
Magnetic variation direction (W/E)
13
*hh
*00
Checksum
14
<
CR
><
LF
>
End of message termination
Table 51:
The GPRMC message data format.
This confidential document is a property of FALCOM and may not be copied or circulated without previous permission.
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