Trimble Outdoors THUNDERBOLT 64057-00-ENG - Manual (Page 51)

Trimble ThunderBolt E GPS Disciplined Clock User Guide 49
Trimble Standard Interface Protocol A
Report Packet 0x42: Single-precision Position Fix
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 "Precision-of-Position output" is set
to single-precision, then the GPS receiver sends this packet each time a fix is computed
or in response to packet 0x37. The data format is shown below. The time-of-fix is in
GPS or UTC as selected by the I/O "timing" option in packet 0x35. Packet 0x83 provides
a double-precision version of this information.
Report Packet 0x43: Velocity Fix, XYZ ECEF
This packet provides current GPS velocity fix in XYZ ECEF coordinates. If the I/O
"velocity" option (packet 0x35) is set to "XYZ ECEF," then the GPS receiver sends this
packet each time a fix is computed or in response to packet 0x37. The data format is
shown below. The time-of-fix is in GPS or UTC as selected by the I/O "timing" option.
Report Packet 0x45: Software Version Information
This packet provides information about the version of firmware running on the GPS
receiver. The receiver sends this packet after power-on, reset, and in response to
packet 0x1F.
Byte Item Type Units
0-3 X Single meters
4-7 Y Single meters
8-11 Z Single meters
12-15 time-of-fix Single seconds
Byte Item Type Units
0-3 X velocity Single meters/second
4-7 Y velocity Single meters/second
8-11 Z velocity Single meters/second
12-15 bias rate Single meters/second
16-19 time-of-fix Single seconds
Byte Item Type
0 Major version number of application UINT8
1 Minor version number of application UINT8
2 Month UINT8
3 Day UINT8
4 Year number minus 1900 UINT8
5 Major revision number of GPS core UINT8
6 Minor revision number of GPS core UINT8
7 Month UINT8
8 Day UINT8
9 Year number minus 1900 UINT8