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A-54 Acutime 2000 Synchronization Kit User Guide
Trimble Standard Interface Protocol
A
0x4F Report Packet 4F
UTC Parameters Report
This packet is sent in response to command packet 2F and contains 26
bytes. It reports the UTC information broadcast by the GPS system.
For details on the meanings of the following parameters, consult ICD-
200, Sections 20.3.3.5.2.4, 20.3.3.5.1.8, and Table 20-IX. On the
simplest level, to get UTC time from GPS time, subtract
∆T
LS
seconds. The other information contained in this packet indicates
when the next leap second is scheduled to occur.
Table A-45 Report UTC Parameters
Byte Value Type
0-7 A0 DOUBLE
8-11 A1 SINGLE
12-13
∆ T
LS
INTEGER
14-17 T
OT
SINGLE
18-19 WN
T
INTEGER
20-21 WN
LSF
INTEGER
22-23 DN INTEGER
24-25
∆ T
LSF
INTEGER