351804-1 Rev. 100
COM5000-8 TECHNICAL MANUAL
TABLE OF CONTENTS
Section Description...............................................................................................................................Page
GENERAL .................................................................................................................................................v
CONFIGURATION............................................................................................................................................v
5-kW TRANSMITTER PERFORMANCE SPECIFICATIONS (*) ....................................................................vi
SCOPE OF MANUAL.....................................................................................................................................vii
GENERAL SAFETY INFORMATION.............................................................................................................vii
CHAPTER 1 DESCRIPTION........................................................................................................................1
1. INTRODUCTION.....................................................................................................................1
1.1 GENERAL...............................................................................................................................1
1.2 FEATURES.............................................................................................................................1
CHAPTER 2 INSTALLATION......................................................................................................................2
2.1 GENERAL...............................................................................................................................2
2.1.1 Government Regulations ........................................................................................................2
2.1.2 Inspection................................................................................................................................2
2.1.3 General Installation .................................................................................................................2
2.1.4 Rack Cabinet Installation ........................................................................................................3
2.1.4.1 Module Removal .....................................................................................................................3
2.1.4.2 Rack Cabinet Mounting...........................................................................................................4
2.1.4.3 Reconnecting Cables To Modules..........................................................................................7
2.1.4.3.1 Power Supply Module Connections........................................................................................7
2.1.4.3.2 System Controller Module Connections..................................................................................8
2.1.4.3.3 Additional Module Connections...............................................................................................9
2.1.4.4 External Connections To The Transmitter............................................................................10
CHAPTER 3 OPERATION.........................................................................................................................11
3.1. INTRODUCTION...................................................................................................................11
3.2 CONTROLS AND DISPLAYS...............................................................................................11
3.2.1 Power Supply Module ...........................................................................................................11
3.2.2 PA Module.............................................................................................................................13
3.2.4 T-4180 Exciter Module..........................................................................................................16
3.3 TRANSMITTER SYSTEM OPERATION...............................................................................16
3.3.1 General..................................................................................................................................16
3.3.2 Operating The Transmitter....................................................................................................16
3.3.3 Transmitter External Control Protocol...................................................................................17
3.3.4 Continuous Bit Operation......................................................................................................17
CHAPTER 4 FUNCTIONAL DESCRIPTION .............................................................................................25
4.1 INTRODUCTION...................................................................................................................25
4.2 COM5000-8 SYSTEM...........................................................................................................25
4.3 1.25KW PA MODULE...........................................................................................................25
4.4 COMBINER MODULE...........................................................................................................28
4.5 SYSTEM CONTROLLER MODULE .....................................................................................28
4.6 POWER SUPPLY MODULE.................................................................................................30
CHAPTER 5 MAINTENANCE....................................................................................................................31
5.1 INTRODUCTION...................................................................................................................31
5.2 RECOMMENDED TEST EQUIPMENT.................................................................................31
5.3 PERIODIC MAINTENANCE..................................................................................................31
