Spectra Precision ProMark 800 Reference Manual - Manual (Page 324)

312
Query Command Library
GST: GNSS Pseudo-Range Error Statistics
Function This command is used to output a GST message containing
standard deviations relevant to the position solution.
Command Format Syntax
$PASHQ,GST[*cc]
Response Format Syntax
$--GST,m1,f2,f3,f4,f5,f6,f7,f8*cc
Parameters
Example $PASHQ,GST
$GNGST,154013.80,0.642,1.746,1.303,27.197,1.663,1.407,2.456*79
See also $PASHS,NME
Automatic Output
of GST Messages
This is a reminder on how to output GST messages at regular
intervals of time: Use the $PASHS,NME command with the
syntax below:
$PASHS,NME,GST,<port_ID>,ON,<Rate>
Parameter Description Range
“$--GST”
Header
$GPGST: Only GPS satellites are used.
$GLGST: Only GLONASS satellites are used.
$GNGST: Several constellations (GPS, SBAS,
GLONASS) are used.
$GPGST,
$GLGST,
$GNGST
m1 Current UTC time of position (hhmmss.ss)
000000.00-
235959.99
f2
RMS value of standard deviation of range inputs
(DGNSS corrections included), in meters
0.000-99.999
f3
Standard deviation of semi-major axis of error
ellipse, in meters
0.000-99.999
f4
Standard deviation of semi-minor axis of error
ellipse, in meters
0.000-99.999
f5
Orientation of semi-major axis of error ellipse, in
degrees from true North
0.000-99.999
f6 Standard deviation of latitude error, in meters 0.000-99.999
f7 Standard deviation of longitude error, in meters 0.000-99.999
f8 Standard deviation of altitude error, in meters 0.000-99.999
*cc Checksum *00-*FF