iXBlue GAPS - Page 177

GAPS - User Guide
H Input Protocols
H.1 GPS
Standard
Input ASCII
Data received
Time, latitude, longitude, altitude, hemisphere, quality factory, number of satellites, HDOP,
depth, Geoidal separation, Checksum NMEA
The ZDA is not taken any more into account when screens UTC are received. If no screen
UTC is received during 60 seconds, the ZDA can again be taken into account.
$__GGA
$--GGA,hhmmss.ss,llmm.mm,a,LLLmm.mm,b,q,ss,y.y,x.x,M,g.g,M,a.a,zzzz*ck
hhmmss.ss
llmm.mm
a
LLLmm.mm
b
q
ss
y.y
x.x
M
g.g
M
a.a
zzzz
*ck
UTC of position
Latitude in degrees (ll) and in minutes (mm.mm)
Hemisphere N: North S: South
Longitude in degrees (LLL) and in minutes (mm.mm)
Longitude sign E: East W: West
GPS quality indicator
0 and ≥ 6 fix invalid
1 = GPS SPS Mode, fix valid
2 = Differential GPS, SPS Mode, fix valid
3 = GPS PPS Mode, fix valid
4 = RTK. Satellite system used in RTK mode with fixed integers
5 = Float RTK. Satellite system used in RTK mode with floating integers
Number of satellites
Horizontal dilution of precision. (NOT USED)
Antenna altitude
Units of antenna altitude (meters)
Geoidal separation. (NOT USED)
Units of geoidal separation (meters) (NOT USED)
Age of differential GPS data. (NOT USED)
Differential reference station ID. (NOT USED)
Hexadecimal checksum ('*' precedes the checksum value)
$__ZDA
$--ZDA,hhmmss.ss*ck
hhmmss.ss
*ck
UTC of the last PPS
Hexadecimal checksum ('*' precedes the checksum value)
MU-GAPS-AN-005-H - November 2019 177