Trimble Standard Interface Protocol

A

0x58 Report Packet 58

Satellite System Data/Acknowledge from Receiver

This packet provides GPS data (almanac, ephemeris, etc.). The receiver sends this packet under the following conditions: (1) on request; (2) in response to packet 38 (acknowledges the loading of data). The data format is shown below.

Table A-49 Report Packet 58

Byte

Item

Type

Value

Meaning

 

 

 

 

 

0

Operation

BYTE

1

Acknowledge

 

 

 

2

Data Out

 

 

 

 

 

1

Type of data

BYTE

1

not used

 

 

 

2

Almanac

 

 

 

3

Health page, T_oa, WN_oa

 

 

 

4

Ionosphere

 

 

 

5

UTC

 

 

 

6

Ephemeris

 

 

 

 

 

2

Sat PRN #

BYTE

0

Data that is not satellite ID-

 

 

 

 

specific

 

 

 

1 to 32

Satellite PRN number

 

 

 

 

 

3

length (n)

BYTE

 

Number of bytes of data to

 

 

 

 

follow

 

 

 

 

 

4 to n+3

data

n BYTES

 

 

 

 

 

 

 

The binary almanac, health page, and UTC data streams are similar to reports 40, 49, and 4F respectively, and those reports are preferred. To get ionosphere or ephemeris, this report must be used.

A-58

Acutime 2000 Synchronization Kit User Guide

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Trimble Outdoors Part Number 45005-00-ENG manual Satellite System Data/Acknowledge from Receiver, Table A-49 Report Packet