Refer ence gst – Trimble Outdoors 5700 User Manual

Page 147

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5700 GPS Receiver User Guide

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NMEA-0183 Output

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Refer

ence

GST

Position Error Statistics

An example of the GST message string is shown below. Table 12.3
describes the message fields.

$GPGST,172814.0,0.006,0.023,0.020,273.6,
0.023,0.020,0.031*6A

Table 12.3

GST message fields

Field

Meaning

1

UTC of position fix

2

RMS value of the pseudorange residuals (includes carrier phase
residuals during periods of RTK(float) and RTK(fixed) processing)

3

Error ellipse semi-major axis 1 sigma error, in meters

4

Error ellipse semi-minor axis 1 sigma error, in meters

5

Error ellipse orientation, degrees from true north

6

Latitude 1 sigma error, in meters

7

Longitude 1 sigma error, in meters

8

Height 1 sigma error, in meters

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