ashtech GG Surveyor Reference Manual page 164

$PASHQ,GST,x
The associated query command the $PASHQ,GST,x where x is the optional output
port.
$GPGST
The return message is in the form:
where Table 6.58 outlines the GST message response structure.
Parameters
f1
f2
f3
f4
f5
f6
f7
f8
*cc
Example:
146
$GPGST,f1,f2,f3,f4,f54,f6,f7,f8*cc
Table 6.58: GST Message Structure
UTC time of the GGS fix associated with this sentence
(hhmmss.ss)
RMS value of the standard deviation of the range inputs
to the navigation process. This field is related to the other
fields in the following way:
(RMS value of standard deviation range inputs)
2
(HDOP) =
(standard deviation of latitude error)
deviation of longitude error)
(RMS value of standard deviation range inputs)
2
(VDOP) =
(standard deviation of altitude error)
Standard deviation of semi-major axis of error ellipse
(meters) This field is not implemented.
Standard deviation of semi-minor axis of error ellipse
(meters) This field is not implemented.
Orientation of semi-major axis of error ellipse (degrees
from true north) This field is not implemented.
Standard deviation of latitude error (meters)
Standard deviation of longitude error (meters)
Standard deviation of altitude error (meters)
The hexadecimal checksum
Query: $PASHS,GST
Response: $PASHR,GST,174640.00,06.660,,,,04.103,03.545,11.821*75
Description
2
*
2
+ (standard
2
2
*
2
GG Surveyor GPS+GLONASS Reference Manual
Range
000000.00-235959.95
0.00-99.99
N/A
N/A
N/A
0.00-99.99
0.00-99.99
0.00-99.99