ashtech G12 - IOD: Ephemeris Data Update Rate for RTCM Base Station; MAX: Maximum Age Threshold for Differential Corrections

178 G12 OEM Board & Sensor Reference Manual
Typical RRE message:
$GPRRE,05,18,000.2,29,000.2,22,-000.1,19,-000.1,28,000.5, 0002.0,0001.3*76
Table 4.104 describes the typical RRE response message.
SAT: Comprehensive Satellite Tracking Data
$PASHS,NME,SAT,x,y,[f]
Enable/disable satellite status message on port x, where x is the output port, and
y is ON or OFF, and f is the optional message output rate ranging from 0.05 to 999
seconds depending on the measurement update rate option installed.
f2 RMS value for the horizontal position error (meters) -9999.9 to
+9999.9
f3 RMS value for the vertical position error (meters)
Table 4.104. Typical RRE Message
Field Description
$GPRRE Header
05 Number of satellites used to compute position
18 PRN of first satellite
000.2 Range residual for first satellite (meters)
29 PRN of second satellite
000.2 Range residual for second satellite (meters)
22 PRN of third satellite
-000.1 Range residual for third satellite (meters)
19 PRN of fourth satellite
-000.1 Range residual for fourth satellite (meters)
28 PRN of fifth satellite
000.5 Range residual for fifth satellite (meters)
0002.0 Horizontal position error (meters)
0001.3 Vertical position error (meters)
*76 Checksum
Table 4.103. $GPRRE Message Format
Parameter Description Range
G12RevD.book Page 178 Tuesday, April 2, 2002 4:33 PM