Trimble Standard Interface Protocol

A

The tracking status flag allows precise monitoring of receiver tracking status and allows a host system to determine whether the time output by the receiver is valid. After self-survey has completed, the receiver only needs to track one satellite to maintain precise synchronization with UTC.

Table A-99 Tracking Status Flag Definitions

Flag Value

Status

Meaning

0

DOING_FIXES

Receiver is navigating.

 

 

 

1

GOOD_1SV

Receiver is timing using one satellite

 

 

 

2

APPX_1SV

Approximate time

 

 

 

3

NEED_TIME

Start-up

 

 

 

4

NEED_INITALIZATION

Start-up

 

 

 

5

PDOP_HIGH

Dilution of Precision too High

 

 

 

6

BAD_1SV

Satellite is unusable

 

 

 

7

0SVs

No satellites usable

 

 

 

8

1SV

Only 1 satellite usable

 

 

 

9

2SVs

Only 2 satellites usable

 

 

 

10

3SVs

Only 3 satellites usable

 

 

 

11

NO_INTEGRITY

Invalid solution

 

 

 

12

DCORR_GEN

Differential corrections

 

 

 

13

OVERDET_CLK

Overdetermined fixes

 

 

 

A-124

Acutime 2000 Synchronization Kit User Guide

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Trimble Outdoors Part Number 45005-00-ENG manual Table A-99 Tracking Status Flag Definitions, Flag Value Status Meaning