Filter
Top Products
Acutime 2000 Synchronization Kit User Guide A-115
A Trimble Standard Interface Protocol
0x8F-A6
Report Packet 8F-A6
This report packet is output after the command packet 8E-A6 has
been executed and is identical in structure to packet 8E-A6. See the
corresponding command packet for information about the data
formats.
0x8F-A9
Report Packet 0x8F-A9
This report packet is output after the command packet 8E-A9 has
been executed and is identical in structure to packet 8E-A9. See the
corresponding command packet for information about the data
formats.
0x8F-AB
Report Packet 8F-AB
This automatic report packet provides time information once per
second if enabled with command packet 8E-A5. GPS week number,
GPS time-of-week (TOW), UTC integer offset, time flags, date and
time-of-day (TOD) information is provided. This packet can be
requested with packet 8E-AB. This packet will begin transmission
within 30 ms after the PPS pulse to which it refers.
Data Fields:
Time of Week: This field represents the number of seconds since
Sunday at 00:00:00 GPS time for the current GPS week. Time of
week is often abbreviated as TOW.
Week Number: This field represents the current GPS week number.
GPS week number 0 started on January 6, 1980. Unfortunately, the
GPS system has allotted only 10-bits of information to carry the GPS
week number and therefore it rolls-over to 0 in just 1024 weeks (19.6
years), and there is no mechanism built into GPS to tell the user to
which 1024 week epoch the week number refers. The first week