TB7100 base stationInstallation andOperation ManualMBA-00005-04Issue 4December 2004

Tait TB7100 Installation And Operation Manual

Installation

Regulatory Information

Environmental Conditions

Recommended Tools

Installing the Base Station

Connection

RF Connections

Base Station Connections

Tait Electronics Limited May

front panel

TB7100

Issue

Preface

Document Conventions

Publication Record

Introduction

Frequency Bands

Power Supply Options

Product Codes

Mechanical Description

Tray

Receiver Module

Transmitter Module

SI Board

AC Power Supply Unit

Functional Description

Receiver Operation

Digital Baseband Processing

Audio Processing and Signalling

Transmitter Operation

Frequency Synthesizer

RF Power Amplifier

User Interface Operation

System Interface Operation

Internal Power Distribution

Serial Data

Opto Isolated Keying

Fan Operation

Explosive Environments

Antenna Load

FCC Compliance

Mounting the Base Station

Cabling

Replacing Modules

Removing the Base Station and Opening the Tray

Replacing the UI Board

Replacing the Receiver Module

Replacing the Transmitter Module

Replacing the SI Board

Replacing the Transmitter and Receiver Fans

Replacing the Fan Power Board

Replacing the AC Power Supply Unit, Fan and Filter Module

Replacing the Speaker

Final Reassembly

Connections

External Connectors

Internal Connectors

SI Board Connectors

UI Board Connectors

Preparation for Operation

Line-controlled Base

Test Equipment Setup

Link Settings

Applying Power

Programming

Receiver Audio Level Adjustment

Receiver Functional Testing

Transmitter Audio Level Adjustment

Transmitter Functional Testing

Talk Through Repeater

Audio Level Adjustment

Alternate Talk Through Repeater Configuration

RF Modem

Programming for THSD Operation

Verification

Data Repeater

Data Repeater Functional Testing

Programmable Features

Mandatory Settings

User-defined Settings

Recommended Settings

Function Keys

Additional Settings

Testing Subaudible Signalling

Multiple Subaudible Tones

Soft Off (Tx Tail Time)

Channel ID

Relay Polarity

Carrier Wave Identification (CWID)

Transmit Time Out Time

Maintenance Guide

Glossary

important notice

contact information

Tait Electronics Limited March

Equipment Safety

Modification History

Using the CTU with a TB7100

Using the CTU with a TB8100

Using the CTU with a TB9100

Appendix A - CTU Accessories

Appendix B - CTU Block Diagram

Tait Contact Information

Copyright

Alert Notices

RF Output Power

Mechanical Design

RF Hardware

Transmitter Audio Processing

Receiver Inhibit

Circuit Descriptions

Transmitter Circuitry

Receiver Circuitry

Frequency Synthesizer Circuitry

Frequency Control Loop

CODEC and Audio Circuitry

Power Supply Circuitry

Interface Circuitry

Digital Board

General Information

Tools, Equipment and Spares

Servicing Precautions

Replacing Board Components

Shielding Cans and Connectors

SMT Repair Techniques

Computer-Controlled Test Mode (CCTM)

Visual Indicators

Disassembly and Reassembly

Replacing the Temperature Sensor Board

Servicing Procedures

Initial Tasks

power supply

Final Tasks

Power Supply Fault Finding

Interface Fault Finding

Frequency Synthesizer Fault Finding

Power Supplies

Phase-locked Loop

Loop Filter

Receive VCO and Related Circuitry (UHF Radios)

Transmit VCO and Related Circuitry (UHF Radios)

VCO and Related Circuitry (VHF Radios)

Power Supply for FCL

VCXO and TCXO Outputs

VCXO and CODEC Circuitry

Receiver Fault Finding

Faulty Receiver Sensitivity

Faulty Radio Mute

High Receiver Distortion

Transmitter Fault Finding (25W)

Transmitter RF Power

Biasing of PA Driver and PAs

RF Signal Path

Transmitter Fault Finding (50W/40W)

CODEC and Audio Fault Finding

No Speaker Audio at Auxiliary Connector

Faulty Receiver

Faulty Modulation

Faulty Modulation Using Auxiliary Connector

Spare Parts

Tait General Software Licence Agreement

limited warranty