User Manual
Axell Wireless Limited
Technical Literature
L.A. M.T.A. Remote Sites
Document Number 80-301401HBKM Issue No. 1 Date 13/06/2008 Page 5 of 148
4.11.1. UHF Lowband Amplifier Shelf 80-301410 System Diagram ....................................... 120
4.11.2. UHF Midband Amplifier Shelf 80-301410 Outline Drawing ......................................... 120
4.11.3. UHF Midband Amplifier Shelf 80-301410 Specification .............................................. 120
4.11.4. UHF Lowband Amplifier Shelf 80-301410 Illustrations................................................ 120
4.11.4.1. Front View .............................................................................................................. 120
4.11.4.2. Rear View............................................................................................................... 121
4.11.5. UHF Midband Amplifier Shelf 80-301410 Major Sub Components............................. 121
4.12. UHF Highband Amplifier Shelf 80-301410......................................................................... 122
4.12.1. UHF Highband Amplifier Shelf 80-301410 System Diagram ...................................... 123
4.12.2. UHF Highband Amplifier Shelf 80-301410 Outline Drawing ....................................... 123
4.12.3. UHF Highband Amplifier Shelf 80-301410 Specification............................................. 123
4.12.4. UHF Highband Amplifier Shelf 80-301410 Illustrations............................................... 123
4.12.4.1. Front View .............................................................................................................. 123
4.12.4.2. Rear View............................................................................................................... 124
4.12.5. UHF Highband Amplifier Shelf 80-301410 Major Sub Components ........................... 124
4.13. 800MHz Amplifier Shelf 80-301411................................................................................... 125
4.13.1. 800MHz Amplifier Shelf 80-301411 System Diagram................................................. 126
4.13.2. 800MHz Amplifier Shelf 80-301411 Outline Drawing.................................................. 127
4.13.3. 800MHz Amplifier Shelf 80-301411 Specification ....................................................... 128
4.13.4. 800MHz Amplifier Shelf 80-301411 Illustrations ......................................................... 128
4.13.4.1. Front View .............................................................................................................. 128
4.13.4.2. Rear View............................................................................................................... 129
4.13.5. 800MHz Amplifier Shelf 80-301411 Major Sub Components...................................... 129
4.13.5.1. Bandpass Filter (02-011601).................................................................................. 130
4.13.5.2. Splitter/Combiner (05-002602)............................................................................... 130
4.13.5.3. 30dB Directional Coupler (07-002907)................................................................... 131
4.13.5.4. Switched Attenuator 0.25Watt, 0 - 30dB (10-000701) ........................................... 131
4.13.5.5. Low Noise Amplifier (11-005902)........................................................................... 132
4.13.5.6. 5W Power Amplifier (12-018601) ........................................................................... 133
4.13.5.7. 20W Power Amplifier (12-020501) ......................................................................... 134
4.13.5.8. Automatic Gain Control .......................................................................................... 135
4.13.5.9. 24V Relay Dual Assembly (20-001602) ................................................................. 136
4.13.5.10. Dual Diode Assembly (94-100004) ...................................................................... 136
4.13.5.11. DC/DC Converter, 24V in, 12V 5A out (96-200024) ............................................ 136
4.14 PSU 96-300064 ................................................................................................................ 137
5. INSTALLATION........................................................................................................................ 138
5.1 Installation Record ................................................................................................................ 138
5.2 General Remarks.................................................................................................................. 138
5.3 Electrical Connections .......................................................................................................... 138
5.4 RF Connections .................................................................................................................... 138
5.5 Optical Connections.............................................................................................................. 138
5.6 Commissioning ..................................................................................................................... 139
6. MAINTENANCE ....................................................................................................................... 140
6.1 Fault Finding ......................................................................................................................... 140
6.1.1 Quick Fault Checklist...................................................................................................... 140
6.1.2 Fault Isolation ................................................................................................................. 140
6.1.3 Downlink......................................................................................................................... 140
6.1.4 Uplink ............................................................................................................................. 141
6.1.5 Checking service ............................................................................................................ 141
6.1.6 Fault repair ..................................................................................................................... 141
6.1.7 Service Support.............................................................................................................. 141
6.2 Tools & Test Equipment........................................................................................................ 142
6.3 Care of Modules.................................................................................................................... 142
6.3.1 General Comments ........................................................................................................ 142
6.3.2 Module Removal (LNAs, general procedure) ................................................................. 142
6.3.3 Module Replacement (general) ...................................................................................... 142
6.3.4 Power Amplifiers ............................................................................................................ 142
6.3.5 Low Power Amplifier Replacement ................................................................................ 143