System Description

ManualsBrandsUBS-Axcera ManualsElectronics5000-Watt UHF Translator

4-6 kW UHF Translator Table of Contents

837B, Rev. 0 i February 24, 2003

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION

Section # Page #

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

1.2 Assembly Designators .......................................................................... 1-1

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

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

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

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

1.6 Introduction Material............................................................................ 1-4

CHAPTER 2 SYSTEM DESCRIPTION

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

2.1.1 UHF Exciter Assembly ................................................................. 2-1

2.1.2 2-3 kW Amplifier Arrays .............................................................. 2-2

2.1.2.1 (Optional) External Exhaust Kit ................................................. 2-4

2.1.3 Transmitter Output Assemblies .................................................... 2-4

2.2 Control and Status............................................................................... 2-5

2.2.1 UHF Exciter Tray ........................................................................ 2-6

2.2.2 UHF Amplifier Trays, LDMOS........................................................ 2-8

2.3 Input and Remote Connections ............................................................. 2-9

2.4 Main AC Input ....................................................................................2-13

CHAPTER 3 INSTALLATION AND SETUP PROCEDURES

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

3.2 Unpacking the Cabinets and Trays ......................................................... 3-4

3.3 Installing the Cabinets and Trays........................................................... 3-6

3.3.1 AC Connection to the UHF Exciter Cabinet ..................................... 3-6

3.3.2 AC Connection to the Amplifier Cabinets........................................ 3-6

3.3.2.1 Three Phase AC Connection to the Amplifier Cabinets ................... 3-6

3.3.2.2 Single Phase AC Connection to the Amplifier Cabinets .................. 3-7

3.3.3 Output Connections .................................................................... 3-7

3.4 Setup and Operation............................................................................ 3-8

CHAPTER 4 CIRCUIT DESCRIPTIONS

4.0 UHF Exciter Assembly .......................................................................... 4-1

4.0.1 Control and Status...................................................................... 4-1

4.0.2 RF, Baseband Input and Remote Connections ................................ 4-1

4.0.3 AC Input ................................................................................... 4-2

4.1 UHF/VHF Receiver Tray ........................................................................ 4-2

4.1.1 (A7) Filter.................................................................................. 4-3

4.1.2 Dual Stage Amplifier Assembly..................................................... 4-3

4.1.3 (A9) Channel Filter ..................................................................... 4-3

4.1.4 Downconverter Amplifier Assembly ............................................... 4-3

4.1.5 Channel Oscillator Assembly ........................................................ 4-3

4.1.6 (A5-A1) Multiplier Board.............................................................. 4-4

4.1.7 (A6) LO Filter............................................................................. 4-4

4.1.8 IF Filter/ALC Board ..................................................................... 4-4

Summary of content (6 pages)

PAGE 1
4-6 kW UHF Translator Table of Contents TABLE OF CONTENTS CHAPTER 1 INTRODUCTION Section # Page # 1.1 Manual Overview................................................................................. 1-1 1.2 Assembly Designators .......................................................................... 1-1 1.3 Safety................................................................................................ 1-1 1.4 Maintenance ............................................................................
PAGE 2
4-6 kW UHF Translator Table of Contents TABLE OF CONTENTS (continued) Section # Page # 4.1.9 (Optional) SAW Filter/Amplifier Board ........................................... 4-4 4.1.10 (Optional) IF Amplifier Board...................................................... 4-5 4.1.11 (Optional) IF Filter/Limiter Board ................................................ 4-5 4.1.12 (Optional) IF PLL Board ............................................................. 4-5 4.1.
PAGE 3
4-6 kW UHF Translator Table of Contents TABLE OF CONTENTS (continued) Section # Page # 4.7.4 1-Watt Amplifier Board...............................................................4-40 4.7.5 UHF Filter .................................................................................4-40 4.7.6 40 Watt UHF Amplifier Assembly .................................................4-40 4.7.7 Coupler Board Assembly.............................................................4-41 4.7.8 LDMOS Amplifier Assembly ........
PAGE 4
-6 kW UHF Translator Table of Contents TABLE OF CONTENTS (continued) Section # Page # 5.4 UHF Amplifier Trays, LDMOS ...............................................................5-13 5.4.1 Variable Gain/Phase Board .........................................................5-13 5.4.2 1-Watt UHF Amplifier Board ........................................................5-13 5.4.3 UHF Filter .................................................................................5-14 5.4.4 40 Watt Amplifier Module ..
PAGE 5
4-6 kW UHF Translator Table of Contents LIST OF FIGURES Figure # 3-1 3-2 3-3 5-1 837B, Rev. 0 Page # 1kW Minimum Ventilation Configuration .......................................... 3-4 Chassis Trak Cabinet Slides ........................................................... 3-6 Typical Rigid coax Reconnection Drawing......................................... 3-8 Waveform at TP2..........................................................................
PAGE 6
4-6 kW UHF Translator Table of Contents LIST OF TABLES Table # 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 4-1 837B, Rev. 0 Page # UHF Exciter Assembly Trays and Assemblies .................................... 2-1 Amplifier Array Trays and Assemblies.............................................. 2-3 UHF Exciter Tray Meters ................................................................ 2-6 UHF Exciter Tray Switches .............................................................