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B GSOF Messages
136 SPSx51 Modular GPS Receivers User Guide
Supported message types
This table summarizes the GSOF messages that are supported by the receiver, and
shows the page that contains detailed information about each message.
General Serial Output Format
Message Description Page
TIME Position time 140
LLH Latitude, longitude, height 140
ECEF Earth-Centered, Earth-Fixed position 141
ECEF DELTA Earth-Centered, Earth-Fixed Delta position 141
NEU DELTA Tangent Plane Delta 141
Velocity Velocity data 142
PDOP PDOP info 143
SIGMA Position Sigma info 143
SV Brief SV Brief info 144
SV Detail SV Detailed info 144
UTC Current UTC time 145
BATT/MEM Receiver battery and memory status 146
ATTITUDE Attitude info 146
BASE POSITION AND
QUALITY INDICATOR
Base station position and its quality 147
Table B.1 Report packet 40h structure (GENOUT)
Byte Item Type Value Meaning
0 STX CHAR 02h Start transmission.
1 STATUS CHAR See Table B.2 Receiver status code.
2 PACKET TYPE CHAR 40h Report Packet 40h (GENOUT).
3 LENGTH CHAR 00h–FAh Data byte count.
4 TRANSMISSION
NUMBER
CHAR Unique number assigned to a group
of record packet pages. Prevents
page mismatches when multiple sets
of record packets exist in output
stream.
5 PAGE INDEX CHAR 00h–FFh Index of current packet page.
6 MAX PAGE INDEX CHAR 00h–FFh Maximum index of last packet in one
group of records.
One or more GSOF messages
Output record
type
CHAR 01h For example, Time (Type 1 Record).
Record length CHAR 0Ah Bytes in record.
Various fields depending on Output record type
There can be multiple records in one GENOUT packet. There could be multiple GENOUT
packets per epoch. Records may be split over two consecutive packets.