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A-52 Lassen-SK8 Embedded GPS Module
Trimble Standard Interface Protocol
A.17.48 Report Packet 0x6E — Synchronized Measurements
Report Packet 0x6E reports the setting of Synchronized Measurement parameters. The
values are shown in Table A-56. See Command Packet 0x6E for more information.
A.17.49 Report Packet 0x6F, Subcode 1
Table A-56. Set Synchronized Measurement Parameters
Byte # Item Type Value Meaning
0 Subcode BYTE 1 Synchronized Measurement
Parameters
1 Enable BYTE 0 Outputs are disabled
1 Outputs are enabled
2 Output
Interval
BYTE 1-255 Output interval in seconds,
synchronized to the GPS time of week
Table A-57 Synchronized Measurements Report
Byte # Item Type Value Meaning
0 Subcode BYTE 1 Synchronized
Measurements
Begin Preamble
1 Preamble BYTE 2 Begin preamble
2–3 Length INTEGER Number of bytes:
preamble to postamble
inclusive
4–11 Receive Time DOUBLE msecs Time of GPS week
12–19 Clock Offset DOUBLE msecs Receiver clock offset
20 # of SVs BYTE Number of satellites
Begin Packet Data (bytes = number of SVs times 27 bytes per SV)
21,48,... SV PRN BYTE 1–32 Pseudorandom number
of satellite
22, 49,... FLAGS1 BYTE Table 0-2 Flag values show
Synchronized
Measurement status of
satellite
23, 50,... FLAGS2 BYTE 0 Reserved (set to zero)
24, 51,... Elevation Angle BYTE degrees Satellite elevation angle
25–26,
52–53,...
Azimuth INTEGER degrees Satellite azimuth
27, 54,... SNR BYTE AMUs/4 Number of AMUs times
four