Command and Log Reference
31
Recommend Input:
Output 1Hz GPSGGA message from current serial port:
GPSGGA 1
Output 1Hz GPSGGA message from com2:
GPSGGA COM2 1
LOG output:
$GPSGGA,025754.00,4004.74102107,N,11614.19532779,E,1,18,0.7,63
.3224,M,-9.7848,M,00,0000*58
Table 6-4: GPSGGA Message Description
ID
Field
Description
Symbol
Example
1
$GPSGGA
Log header
$GPSGGA
2
utc
UTC time of the current position
(hours/minutes/seconds/
decimal seconds)
hhmmss.ss
170659.00
3
lat
Latitude (DDmm.mm)
IIII.II
4001.1220
4
lat dir
Latitude direction (N = North, S = South) a
N
5
lon
Longitude (DDDmm.mm)
yyyyy.yy
11600.3622
6
lon dir
Longitude direction (E = East, W = West) a
E
7
GPS quality
Quality indicators of positioning results:
0 = Positioning not available or invalid
1 = Single point
2 = Pseudorange differential or SBAS
4 = RTK fixed solution
5 = RTK floating solution
6 = INS
7 = User fixed position
x
1
8
# sats
Number of satellites in use, may not the
same as the number in view.
xx
10
9
hdop
Horizontal dilution of precision
x.x
1.0
10
alt
Antenna height, above/below the mean
sea level
x.x
1098.44
11
a-units
Units of antenna height (M = meter)
M
M
12
undulation
Undulation: the vertical separation
between the geoid and the WGS84
ellipsoid
x.x
-15.174
13
u-units
Units of undulation (M = meter)
M
M
14
age
Age of differential correction data,
seconds
xx
This value is set to
00
when
no
