Performance Specifications; Receiver Options; Table 1.3: Accuracy As Function Of Mode - ashtech Z-Surveyor Operation And Reference Manual

Performance Specifications

One of the most important functions of the receiver is providing real-time position
solutions with accuracy ranging from centimeter level to 100 meters. Table 1.3
summarizes the positioning modes and expected accuracy.
Positioning Mode
Autonomous
RTCM code differential
Static (post-processed)
Real-time carrier phase
differential in RTCM-
RTK format or DBEN
format
All accuracies were computed from multiple trials of live satellite data collected in the San Francisco
Bay area with Z-Surveyor receivers and Geodetic III antennas under average multipath conditions.

Receiver Options

Table 1.4 lists the available options. Each option is represented by a letter or number
presented in a certain order. You can verify the installed options by going to the
options table under the System Information (
of the receiver.
You can also verify the installed options by issuing the following command to the
receiver using an external handheld controller or PC, as described in the Z-Family
Technical Reference Manual:
•
The command will display the options on the external handheld controller or PC. For
example:
6

Table 1.3: Accuracy as Function of Mode

Typical Horizontal
Accuracy (2drms), 5
SVs, PDOP<4
100 meters with SA on
1.0 meters + 10 ppm
5mm + 1ppm
1.6cm +2ppm
$PASHQ,RID
$PASHR,RID,UZ,30,UC00,BUEXMFT3JK,0A13*75
Maximum Update
Rate
5Hz (10 Hz optional) Anywhere
5Hz (10Hz optional) Several hundred
kilometers (depending
upon datalink)
5Hz (10Hz optional) Several hundred
kilometers (depending
upon satellite geometry)
5Hz (10Hz optional) <15 kilometers
(depending upon datalink)
) menu through the front panel
SYSINFO
Z-Surveyor & Z-FX Operation Manual
Maximum Operating
Range