Ptnl,bpq – Trimble Outdoors SPSX51 User Manual

Page 128

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A NMEA-0183 Output

126 SPSx51 Modular GPS Receivers User Guide

PTNL,BPQ

Base station position and quality indicator

This message describes the base station position and its quality. It is used when the
moving base antenna position and quality are required on one serial port (along with a
heading message) from a receiver in heading mode, typically the SPS551H.

The PTNL,BPQ message string is shown below, and

Table A.7

describes the message

fields.

$PTNL,BPQ,224445.06,021207,3723.09383914,N,12200.32620132,W,EHT-5.923,
M,5*

Table A.7

BPQ message fields

Field

Meaning

0

Talker ID

1

BPQ

2

UTC time of position fix, in hhmmss.ss format. Hours must be two numbers, so
may be padded, for example, 7 is shown as 07.

3

UTC date of position fix, in ddmmyy format. Day must be two numbers, so may
be padded, for example, 8 is shown as 08.

4

Latitude, in degrees and decimal minutes (ddmm.mmmmmmm)

5

Direction of latitude:

N: North

S: South

6

Longitude, in degrees and decimal minutes (dddmm.mmmmmmm). Should
contain 3 digits of ddd.

7

Direction of longitude:

E: East

W: West

8

Height

Ellipsoidal height of fix (antenna height above ellipsoid). Must start with EHT.

9

M: ellipsoidal height is measured in meters

10

GPS quality indicator:

0: Fix not available or invalid

1: Autonomous GPS fix

2: Differential SBAS, or OmniSTAR VBS

4: RTK Fixed

5: OmniSTAR XP, OmniSTAR HP, Float RTK, or Location RTK

11

The checksum data, always begins with *

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