Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 329)

329 Appendix E Technical Reference Manual-4.0.0en
GGQ - Real-Time Position with CQ
Format
$GPGGQ,
hhmmss.ss,
mmddyy,
llll.ll,
a,
yyyyy.yy,
a,
x,
xx,
x.x,
EHT
x.x,
M
*hh
<CR>
<LF>
Content
Header, incl. Talker ID,message sent from
Receiver
GGQ Sentence Formatter
UTC of Position Fix
UTC date
Latitude
Hemisphere “N”/“S”
Longitude
“E”/“W”
GPS Quality Indicator
0 = fix not available or invalid
1 = No Realtime position, navigation fix
2 = Realtime position, ambiguities not fixed
3 = Realtime position, ambiguities fixed
Number of Satellites in Use
(Common satellites between ref and rover,
Values between 00 to 12, may be different
from the number in view)
Coordinate Quality
Ellipsoidal height
Antenna altitude above/below mean sea level.
Note, if no orthometric height is available the
local ell. height will be exported. If the local ell.
height is not available either, the WGS84 ell.
height will be exported.
Units of altitude meters (fixed text “M”)
Checksum
Carriage Return
Line Feed
GLL - Geodetic Position - Latitude, Longitude
Format
$GPGLL,
llll.ll,
a,
yyyyy.yy,
a,
hhmmss.ss,
A,
a
*hh
<CR>
<LF>
Content
Header, incl. Talker ID,message sent from
Receiver
Latitude
Hemisphere “N”/“S”
Longitude
“E”/“W”
UTC time of position
Status
1
A = Data valid
V = Data not valid
Mode Indicator
1
A = Autonomous mode
D = Differential mode
N = Data not valid
Checksum
Carriage Return
Line Feed
1 The Mode Indicator field supplements the Status field. The Status field
is set to A for the Mode Indicators A and D. The Status field is set to V
for the Mode Indicator N.