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A TRIMBLE STANDARD INTERFACE PROTOCOL (TSIP)
154 Copernicus GPS Receiver
Report Packet 0x6D - All-In-View Satellite Selection
This packet provides a list of satellites used for position fixes by the GPS receiver.
The packet also provides the PDOP, HDOP, and VDOP of that set and provides the
current mode (automatic or manual, 3-D or 2-D). This packet has variable length
equal to 16+nSVs where “nSVs” is the number of satellites used in the solution.
The GPS receiver sends this packet in response to Packet
0x24. The data format is
shown below.
Note – The Lassen IQ GPS Receiver sends this packet automatically after a position
fix or every second if no position fix occurs.
Command Packet 0x7A
The NMEA message determines whether or not a given NMEA message will be
output. If the bit for a message is set, the message will be sent every “interval”
second. Use the values shown below to determine the NMEA interval and message
mask. While fixes are being generated, the output order is: ZDA, GGA, GLL, VTG,
GSA, GSV, RMC.
16-19 Azimuth Single radians Approximate azimuth from true
north to this satellite. Updated
typically about every 3 to 5
minutes. Used for computing
measurement correction factors.
20-23 reserved UINT8 0
Table A.47 Report Packet 0x6D Data Formats
Byte Bit Item Type Value Definition
00-2DimensionUINT83
4
2D
3D
03 0
1
Auto
Manual
04-7 -nSVs
1-4 PDOP Single PDOP
5-8 HDOP Single HDOP
9-12 VDOP Single VDOP
13-16 TDOP Single TDOP
(16+nSVvs) SV PRN UINT8
Table A.48 Command Packet 0x7A and Report Packet 0x7B Data Formats
Byte Bit Item Type Value Definition
0SubcodeUINT80
1 Interval UINT8 1-255 Fix interval in seconds
Table A.46 Report Packet 0x5C Data Formats (continued)
Byte Bit Item Type Value Definition