Trimble Standard Interface Protocol

A

0x7B

0x83

Report Packet 7B

NMEA Message Output

This packet is sent in response to command packet 7A and has the same data format as packet 7A.

Report Packet 83

Double-precision XYZ Position Fix And Bias Information

This packet provides current GPS position fix in XYZ ECEF coordinates. If the I/O "position" option is set to "XYZ ECEF" and the I/O double-precision option is selected (packet 35), the receiver sends this packet each time a fix is computed. The data format is shown below.

Table A-65 Report Packet 83

Byte

Item

Type

Units

0-7

X

DOUBLE

meters

 

 

 

 

8-15

Y

DOUBLE

meters

 

 

 

 

16-23

Z

DOUBLE

meters

 

 

 

 

24-31

clock bias

DOUBLE

meters

 

 

 

 

32-35

time of fix

SINGLE

seconds

 

 

 

 

The time-of-fix is in GPS time or UTC, as selected by the I/O "timing" option in packet 0x35. At start-up, if the I/O double- precision option is selected, this packet is also sent with a negative time-of-fix to report the current stored position.

Packet 42 provides a single-precision version of this information.

A-76

Acutime 2000 Synchronization Kit User Guide

Page 182
Image 182
Trimble Outdoors Part Number 45005-00-ENG manual 0x7B 0x83, Nmea Message Output, Table A-65 Report Packet, Report Packet 7B