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Lassen-SK8 Embedded GPS Module A-15
Trimble Standard Interface Protocol
A.14 Report Packets Sent by the GPS Receiver to the User
The table below summarizes the packets output by the receiver. The table includes the
output Packet ID, a short description of each packet, and the associated input packet. In
some cases, the response packets depend on user-selected options. These selections are
covered in the packet descriptions beginning on page A-23.
Table A-13. User-Selected Report Packet Options
Output ID Packet Description Input ID
0x41 GPS time 0x21, auto
0x42 single-precision XYZ position 0x25, 0x37, auto
0x43 velocity fix (XYZ ECEF) 0x37, auto
0x45 software version information 0x1F, power-up
0x46 health of Receiver 0x26, auto, power-up
0x47 signal level for all satellites 0x27
0x48 GPS system message 0x28
0x4A single-precision LLA position 0x37, auto
0x4B machine code/status 0x26, auto, power-up
0x4D oscillator offset 0x2D
0x4E response to set GPS time 0x2E
0x55 I/O options 0x35
0x6E Synchronized Measurement packet output
control
0x6F Synchronized Measurement packet Auto
0x56 velocity fix (ENU) 0x37, auto
0x57 information about last computed fix 0x37
0x58 GPS system data/acknowledge 0x38
0x59 sat enable/disable & health heed 0x39
0x5A raw measurement data 0x3A
0x5C satellite tracking status 0x3C
0x6D all-in-view satellite selection 0x24, auto
0x82 differential position fix mode 0x62, auto
0x83 double-precision XYZ auto, 0x37
0x84 double-precision LLA auto, 0x37
0x85 differential correction status 0x65
0x8F-20 last fix with extra information (fixed point) auto, 0x37, 0x8E-20
0x8F-17 UTM auto, 0x37