UBS Axcera LU1000AT Table of Contents Exciter

UHF Analog Driver/Transmitter Table of Contents

TABLE OF CONTENTS

SECTION PAGE

CHAPTER 1 INTRODUCTION

1.1 Manual Overview................................................................................. 1-1

1.2 Assembly Designation Numbers ............................................................ 1-1

1.3 Safety................................................................................................ 1-1

1.4 Maintenance ....................................................................................... 1-2

1.5 Material Return Procedure .................................................................... 1-2

1.6 Limited One-Year Warranty for Axcera Products ...................................... 1-3

CHAPTER 2 SYSTEM DESCRIPTION & REMOTE CONTROL CONNECTIONS

2.1 System Overview ............................................................................... 2-1

2.1.1 Modulator Module (not used in a translator system) ........................ 2-1

2.1.2 IF Processor Module.................................................................... 2-3

2.1.3 LO/Upconverter Module............................................................... 2-5

2.1.4 Control & Monitoring/Power Supply Module.................................... 2-7

2.1.5 Power Amplifier Module, 10-100W transmitter................................ 2-8

2.1.5.1 Driver Amplifier Module, used with high power transmitters .... 2-9

2.1.6 RF Output Assemblies ................................................................2-11

2.2 Control and Status..............................................................................2-11

2.2.1 Front Panel LCD Display Screen...................................................2-11

2.3 System Operation...............................................................................2-12

2.3.1 Principles of Operation ...............................................................2-12

2.4 Customer Remote Connections.............................................................2-14

CHAPTER 3 SITE CONSIDERATIONS, INSTALLATION AND SETUP PROCEDURES

3.1 Site Considerations.............................................................................. 3-1

3.2 Unpacking the Chassis w/Modules, bandpass and trap filters..................... 3-4

3.3 Installing the Chassis w/Modules and filters ............................................ 3-4

3.4 AC Input ............................................................................................ 3-5

3.5 Setup and Operation............................................................................ 3-5

3.5.1 Input Connections ...................................................................... 3-5

3.5.2 Front Panel Screens for the Exciter/Amplifier Chassis Assembly ........ 3-7

3.5.3 Initial Turn On ..........................................................................3-14

CHAPTER 4 CIRCUIT DESCRIPTIONS

4.1 Modulator Module (not used in a translator system) ................................. 4-1

4.1.1 Analog Modulator Board .............................................................. 4-1

4.2 IF Processor Module............................................................................. 4-6

4.2.1 IF Processor Board ..................................................................... 4-6

4.3 LO/Upconverter Module.......................................................................4-11

4.3.1 UHF Generator Board.................................................................4-12

4.3.2 UHF Filters................................................................................4-13

4.3.3 LO/Upconverter Board ...............................................................4-13

4.4 Control Monitoring/Power Supply Module...............................................4-17

4.4.1 Power Protection Board ..............................................................4-17

4.4.2 Control Board ...........................................................................4-18

4.4.3 Switch Board ............................................................................4-20

4.4.4 Switching Power Supply Assembly ...............................................4-20

LX Series, Rev. 0 October 31, 2003 i

UHF Analog Driver/Transmitter Table of Contents

TABLE OF CONTENTS - (Continued)

SECTION PAGE

4.5 Power Amplifier Module Assembly used in 10-100 Watt transmitters .........4-21

4.5.1 1-Watt Amplifier Module Assembly...............................................4-21

4.5.2 1-Watt UHF Amplifier Board ........................................................4-21

4.5.3 40-Watt UHF Amplifier Assembly .................................................4-21

4.5.4 UHF Module Assembly, RF Module Pallet .......................................4-22

4.5.5 Coupler Board Assembly.............................................................4-23

4.5.6 Amplifier Control Board ..............................................................4-23

4.5.7 Band-pass and Trap Filter...........................................................4-25

4.6 OR Driver Amplifier Module Assembly used in high power transmitters ......4-25

4.6.1 1-Watt Amplifier Module Assembly...............................................4-25

4.6.2 1-Watt UHF Amplifier Board ........................................................4-26

4.6.3 40-Watt UHF Amplifier Assembly .................................................4-26

4.6.4 Coupler Board Assembly.............................................................4-26

4.6.5 Amplifier Control Board ..............................................................4-27

CHAPTER 5 DETAILED ALIGNMENT PROCEDURES

5.1 Module Replacement............................................................................ 5-1

5.1.1 Initial Test Setup........................................................................ 5-1

5.2 LU Series Exciter/Amplifier Chassis Assembly.......................................... 5-2

5.2.1 Linearity Correction Adjustment ................................................... 5-3

5.2.2 Frequency Response Delay Equalization Adjustment ....................... 5-4

5.2.3 Calibration of Output Power and Reflected Power............................ 5-4

5.3 Alignment Procedure for the Bandpass Filter Assembly ............................. 5-5

APPENDICES

APPENDIX A LX SERIES SPECIFICATIONS

APPENDIX B DRAWINGS AND PARTS LISTS

LX Series, Rev. 0 October 31, 2003 ii