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B     GSOF Messages

136     SPSx51 Modular GPS Receivers User Guide

This table summarizes the GSOF messages that are supported by the receiver, and 
shows the page that contains detailed information about each message.

Position time

Latitude, longitude, height

Earth-Centered, Earth-Fixed position

Earth-Centered, Earth-Fixed Delta position

Tangent Plane Delta

Velocity data

PDOP info

Position Sigma info

SV Brief info

SV Detailed info

Current UTC time

BATT/MEM

Receiver battery and memory status

ATTITUDE

Attitude info

Base station position and its quality

Table B.1

Report packet 40h structure (GENOUT)

0

STX

CHAR

02h

Start transmission.

1

STATUS

CHAR

See 

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.

Output record 
type 

CHAR

01h

For example, Time (Type 1 Record).

Record length

CHAR

0Ah

Bytes in record.

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.