User's Manual

SPSx50 Modular GPS Receiver User Guide 141
GSOF Messages B
• Range or slope distance between the moving base antenna and the heading
antenna
Table B.13 Attitude (Type 27 record)
Field Item Type Value Meaning
0 Output record type Char 1Bh Attitude information
1 Record length Char 2Ah Bytes in record
2-5 GPS time Long msecs GPS time in milliseconds of GPS week
6 Flags Char See
Table B.20
Flag bits indicating validity of attitude
components
7 Number of SVs used Char 00h-0Ch Number of satellites used to calculate
attitude
8 Calculation mode Char See
Table B.21
Positioning mode
9 Reserved Reserved
10-17 Tilt Double radians Tilt relative to horizontal plane
18-25 Yaw Double radians Rotation about the vertical axis relative to
true north
26-33 Reserved Reserved
34-41 Range Double meters Distance between antennas
42-43 PDOP Short 0.1 Position Dilution of Precision