A-64 Acutime 2000 Synchronization Kit User Guide
Trimble Standard Interface Protocol A
0x5A Report Packet 5A
Raw Measurement Data Report
This packet provides raw GPS measurement data. If the I/O auxiliary
option for "raw data" has been selected (packet 35), and it is masked
for output by packet 8E-4D, the receiver outputs a packet 5A for each
satellite being tracked, once per second. The receiver also sends this
packet in response to packet 3A. The data format is shown below.
!Note – Report Packet 5A provides the raw satellite signal
measurement information used in computing a fix.
The satellite PRN (Byte 0) number is a unique identification for each
of the 32 GPS satellites.
Table A-56 Report Packet 5A
Byte Item Type Units
0 Satellite PRN number BYTE ----
1-4 reserved SINGLE
5-8 Signal level SINGLE
9-12 Code phase SINGLE 1/16th chip
13-16 Doppler SINGLE Hertz
17-24 Time of
Measurement
DOUBLE seconds