User's Manual

B GSOF Messages
134 SPSx50 Modular GPS Receiver User Guide
Supported message types
The following table summarizes the GSOF messages supported by the receiver, and
shows the page where detailed information about each message can be found.
GSOF message definitions
When GSOF output is enabled, the following messages can be generated.
TIME
This message describes position time information. It contains the following data:
• GPS time, in milliseconds of GPS week
• GPS week number
• Number of satellites used
• Initialization counter
Message Description Page
TIME Position Time 134
LLH Latitude, Longitude, Height 135
ECEF Earth-Centered, Earth-Fixed Position 135
ECEF DELTA Earth-Centered, Earth-Fixed Delta Position 136
NEU DELTA Tangent Plane Delta 136
Velocity Velocity Data 136
PDOP PDOP Info 137
SIGMA Position Sigma Info 137
SV Brief SV Brief Info 138
SV Detail SV Detailed Info 139
UTC Current UTC Time 140
BATT/MEM Receiver Battery and Memory Status 140
ATTITUDE Attitude Info 141
Table B.1 Time (Type 1 record)
Field Item Type Value Meaning
0 Output record type Char 01h Position time output record
1 Record length Char 0Ah Bytes in record
2-5 GPS time (ms) Long msecs GPS time, in milliseconds of GPS week
6-7 GPS week number Short number GPS week count since January 1980
8 Number of SVs used Char 00h-0Ch Number of satellites used to determine
the position (0-12)
9 Position flags 1 Char See Reports first set of position attribute flag
values