User's Manual
Maintenance Handbook
Baltimore Radio Repeater System
Handbook No. 60-166501HBKM Page 3 of 26
Table of Contents
1. INTRODUCTION.......................................................................................................................... 2
Scope and Purpose of this Document................................................................................................. 2
Limitation of Liability Notice................................................................................................................. 2
2. SAFETY CONSIDERATIONS...................................................................................................... 4
2.1 Earthing of Equipment .............................................................................................................. 4
2.2 Electric Shock Hazard............................................................................................................... 4
2.3 RF Radiation Hazard ................................................................................................................ 4
2.4 Chemical Hazard ...................................................................................................................... 5
2.5 Laser safety .............................................................................................................................. 5
2.6 Emergency Contact Numbers................................................................................................... 5
3. EQUIPMENT OVERVIEW/SPECIFICATIONS............................................................................. 6
3.1 Fibre Fed High Power Remote BDA (60-166501) .................................................................... 7
3.2 Fibre Fed High Power Remote BDA Description................................................................... 7
3.3 Fibre Fed High Power Remote BDA Technical Specifications .............................................. 7
3.4 Fibre Fed High Power Remote BDA Mechanical Specifications ........................................... 7
3.5 Fibre-Fed High Power Remote Site System Diagram, Drg. No. 60-166581.......................... 8
3.6 Fibre-Fed High Power Remote Site Alarm Diagram, Drg. Nǀ 60-166551 ............................. 9
3.7 Remote Site UHF BDA Alarm Wiring Diagram, Drg. No. 60-166551 .................................. 10
3.8 Remote Site UHF BDA Outline Drawing, Drg. No. 60-166591 ............................................ 11
3.9 Fibre Fed High Power Remote BDA Parts List (60-166501) ............................................... 13
4. INSTALLATION & COMMISIONING.......................................................................................... 15
4.1 Initial Installation Record......................................................................................................... 15
4.2 Antenna Installation & Gain Calculations................................................................................ 15
4.3 Antenna Isolation .................................................................................................................... 16
4.4 Rack Mounted Equipment.......................................................................................................17
4.5 Optical Connections................................................................................................................ 17
4.6 Wall Mounted Equipment........................................................................................................ 18
4.7 RF Connections ...................................................................................................................... 18
4.8 RF Commissioning.................................................................................................................. 18
5. FAULT FINDING / MAINTENANCE........................................................................................... 19
5.1 Tools & Test Equipment.......................................................................................................... 19
5.2 Basic Fault Finding ................................................................................................................. 19
5.3 Quick Fault Checklist .............................................................................................................. 20
5.4 Downlink ................................................................................................................................. 20
5.5 Uplink...................................................................................................................................... 20
5.6 Fault repair.............................................................................................................................. 20
5.7 Service Support ...................................................................................................................... 20
5.8 Care of Modules...................................................................................................................... 21
5.9 Module Removal (LNAs, general procedure):......................................................................... 21
5.10 Module Replacement (general): .......................................................................................... 21
5.11 Power Amplifiers.................................................................................................................. 21
5.12 Low Power Amplifier Replacement...................................................................................... 22
5.13 Module Transportation:........................................................................................................ 22
6 APPENDIXES ............................................................................................................................ 23
6.1 Glossary of Terms used in this document............................................................................... 23
6.2 AFL RF Module Drawing Key ................................................................................................. 24
6.3 EC Declaration of Conformity .................................................................................................25
6.4 Amendment List Record Sheet ............................................................................................... 26