Filter
Top Products
Acutime 2000 Synchronization Kit User Guide A-55
A Trimble Standard Interface Protocol
0x54 Report Packet 54
Bias and Bias Rate Report
The receiver sends this packet to provide the computed clock-only
solution when the receiver is in the manual or automatic
Overdetermined Clock mode or Time Only (1-SV) mode.
The bias is the offset of the receiver internal time clock from GPS
time. Bias is expressed as meters of apparent range from the satellites.
It is used to correct the one PPS output. Bias rate is the frequency
error of the receiver internal oscillator. It is expressed as apparent
range rate. Time-of-fix is in GPS or UTC time as selected by the I/O
"timing" option in packet 0x35.
"
Caution – For accurate interpretation of the propagation delay, the
precise constant for the speed of light must be used. The ICD-200
value for the speed of light is 299,792,458 meters per second.
0x55 Report Packet 55
I/O Option Flags Report
This packet provides current I/O options in response to packet 35
request. The data format is the same as for packet 35. See packet 35
for details.
Table A-46 Report Packet 54
Byte Item Type Units
0-3 Bias SINGLE meters
4-7 Bias rate SINGLE meters/second
8-11 Time of fix SINGLE seconds