ashtech GG Surveyor, Reference Manual

Page: 185 / 256

Command/Response Formats 167
Com
m
and
s
Table 6.78 outlines the RRE response structure.
Example:
Query: $PASHQ,RRE,A or
Set:$PASHS,NME,RRE,A,ON
Typical Responses:
$GPRRE,05,18,+000.2,29,+000.2,22,-000.1,19,- 000.1,28,
+000.5,0002.0,0001.3*76
$GLRRE,03,45,+000.4,36,+000.2,52,-000.2,0002.0,0001.3*A1
Table 6.79 outlines the typical $GPRRE response message.
Table 6.78: RRE Response Structure
Field Description
d1 Number of satellites used to compute position
d2 PRN number for each of the satellites used in position computation. GPS satellite
ranging from 1 to 32 in the $GPRRE message and GLONASS satellite ranging from 33
to 56 in the $GLRRE message
f1 Range residuals magnitude in meters for each satellite used in position computation:
GPS satellites in message.
f2 Horizontal RMS position error for mixed constellation in meters
f3 Vertical RMS position error for mixed constellation in meters
Table 6.79: $GPRRE Response Message
Item Description
$GPRRE Header
05 Number of satellites used to compute position
18 PRN of first satellite
+000.2 Range residual for first satellite in meters
29 PRN of second satellite
+000.2 Range residual for second satellite in meters
22 PRN of third satellite
-000.1 Range residual for third satellite in meters
19 PRN of fourth satellite
-000.1 Range residual for fourth satellite in meters