-
Chapter 1 Hardware Structure of Antenna and Feeder System
1-1..................
Chapter 2 Installation Procedure of Antenna and Feeder System
2-1..............2.1 Installation Procedure of BTS Antenna and
Feeder System 2-1..................2.2 Procedure Description
2-3............................................................................
Chapter 3 Installation Preparations
3-1...............................................................3.1
Preparing Technical Documents
3-1............................................................3.2
Installation Environment Check
3-1..............................................................3.3
Qualifying Personnel
3-1..............................................................................3.4
Preparing Personnel for Installation
3-2.......................................................3.5
Preparing Tools and Instruments
3-3...........................................................3.6
Testing Antenna
3-3.....................................................................................3.7
Testing TTA
3-4............................................................................................3.8
Adding Feeder Connector
3-5......................................................................3.9
Assembling Omnidirectional Antenna
3-6....................................................
3.9.1 Omnidirectional Antenna Accessories
3-6...........................................3.9.2 Assembling
Procedure
3-7...................................................................
3.10 Assembling Directional Antenna
3-8..........................................................3.10.1
Directional Antenna Accessories
3-8.................................................3.10.2
Assembling Procedure
3-10.................................................................
Chapter 4 Installing Antenna and Feeder System
4-1........................................4.1 Installing Outdoor
Grounding Bar
4-1...........................................................
4.1.1 Structure of Outdoor Grounding Bar
4-1..............................................4.1.2 Installation
Requirements
4-1..............................................................4.1.3
Installation Procedure
4-1....................................................................
4.2 Installing Antenna Support on Tower Platform
4-2.......................................4.2.1 Structure of
Antenna Support on Tower Platform
4-3..........................4.2.2 Installation Requirements
4-3..............................................................4.2.3
Installation Procedure
4-4....................................................................
4.3 Installing Antenna Support on Rooftop
4-5...................................................4.3.1
Structure of Antenna Support on Rooftop
4-6......................................4.3.2 Installation
Requirements
4-6..............................................................4.3.3
Installing Antenna Support on Rooftop Without Walls
4-7...................4.3.4 Installing Antenna Support onto Rooftop
with Wall 4-9........................
4.4 Installing Omnidirectional Antenna on Tower Platform
4-10..........................4.4.1 Structure of Omnidirectional
Antenna on Tower Platform 4-10..............4.4.2 Installation
Requirements
4-11..............................................................4.4.3
Hoisting Antennas and Other Articles
4-12............................................4.4.4 Installation
Procedure
4-12....................................................................
-
4.5 Installing Omnidirectional Antenna on Rooftop
4-14......................................4.5.1 Structure of
Omnidirectional Antenna on Tower Rooftop 4-14..............4.5.2
Hoisting Antennas and Other Articles
4-15............................................4.5.3 Installation
Requirements
4-15..............................................................4.5.4
Installation Procedure
4-16....................................................................
4.6 Installing Directional Antenna on Tower Platform
4-17..................................4.6.1 Structure of
Directional Antenna on Tower Platform
4-17......................4.6.2 Installation Requirements
4-17..............................................................4.6.3
Hoisting Antennas and Other Articles
4-18............................................4.6.4 Installation
Procedure
4-19....................................................................
4.7 Installing Directional Antenna on Rooftop
4-23..............................................4.7.1 Structure
of Directional Antenna on Rooftop
4-23.................................4.7.2 Hoisting Antennas and
Other Articles
4-24............................................4.7.3 Installation
Requirements
4-24..............................................................4.7.4
Installation Procedure
4-25....................................................................
4.8 Installing TTA
4-26.........................................................................................4.8.1
Structure of TTA
4-26.............................................................................4.8.2
Installation Requirements
4-27..............................................................4.8.3
Installation Procedure
4-28....................................................................4.8.4
Installing Jumpers of TTA
4-29..............................................................
4.9 Installing Feeder Window
4-30.......................................................................4.9.1
Structure of the Feeder Window
4-31....................................................4.9.2
Installation Requirements
4-31..............................................................4.9.3
Installation Procedure
4-32....................................................................
4.10 Installing and Grounding Feeders and Jumpers
4-33..................................4.10.1 Cutting Feeders and
Attaching Temporary Labels 4-33......................4.10.2
Hoisting and Fixing Feeders
4-34........................................................4.10.3
Connecting Jumpers between the Antenna and the Feeder
4-37........4.10.4 Connecting the Jumper between TTA and the Feeder
4-38................4.10.5 Laying and Fixing Feeders
4-39...........................................................4.10.6
Grounding Feeders
4-44......................................................................
4.11 Leading Feeders into Equipment Room
4-51...............................................4.11.1 Feeder
Arrangement Principles
4-51...................................................4.11.2
Procedure to Lead Feeders into Equipment Room
4-52......................
4.12 Installing Jumpers
4-53................................................................................4.12.1
Installation Requirements for Jumpers
4-53........................................4.12.2 Installing
Jumpers at the Cabinet Top
4-54.........................................
4.13 Installing Feeder Lightning Arrester and its Grounding Bar
4-54.................4.13.1 Installing Feeder Lightning Arrester
4-54.............................................4.13.2 Installing
Grounding Bar of Lightning Arrester
4-55.............................
4.14 Testing BTS Antenna and Feeder System
4-58...........................................
-
4.15 Waterproofing Outdoor Connectors
4-58.....................................................4.16
Waterproofing Feeder Window
4-60.............................................................
Chapter 5 Checking Installation
5-1.....................................................................5.1
Checking Feeder
5-1....................................................................................5.2
Checking Grounding Bar
5-2........................................................................5.3
Checking the feeder encapsulation window
5-3...........................................5.4 Checking Antennas
5-3................................................................................5.5
Checking the jumper and TTA
5-4................................................................
Appendix A Requirements for Antenna Spacing
A-1..........................................A.1 For
Omni-directional Antenna
A-1................................................................A.2
For Directional Antennas
A-2.......................................................................
Appendix B Engineering Labels for Antenna and Feeder System
B-1.............B.1 Engineering Labels for Feeders
B-1.............................................................B.2
Explanation of the Jumper Engineering Label
B-3.......................................
-
Huawei Technologies Proprietary
HUAWEI
1. Cabinet Installation
2. Antenna Feeder Installation
3. Software Installation
M900/M1800 BTS3012A Base Transceiver Station Installation
Manual
V300R002
-
Huawei Technologies Proprietary
M900/M1800 BTS3012A Base Transceiver Station
Installation Manual
Volume Cabinet Installation
Manual Version T2-030450-20050225-C-3.22
Product Version V300R002
BOM 31040850
Volume Antenna Feeder Installation
Manual Version T2-030451-20050225-C-3.22
Product Version V300R002
BOM 31040851
Volume Software Installation
Manual Version T2-030452-20050225-C-3.21
Product Version V300R002
BOM 31040852
Huawei Technologies Co., Ltd. provides customers with
comprehensive technical support and service. Please feel free to
contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address: Administration Building, Huawei Technologies Co.,
Ltd.,
Bantian, Longgang District, Shenzhen, P. R. China
Postal Code: 518129
Website: http://www.huawei.com
Email: [email protected]
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Huawei Technologies Proprietary
Copyright 2005 Huawei Technologies Co., Ltd.
All Rights Reserved
No part of this manual may be reproduced or transmitted in any
form or by any means without prior written consent of Huawei
Technologies Co., Ltd.
Trademarks
, HUAWEI, C&C08, EAST8000, HONET, , ViewPoint, INtess, ETS,
DMC,
TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, M900/M1800,
TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA,
iTELLIN, HUAWEI OptiX, C&C08 iNET, NETENGINE, OptiX, iSite,
U-SYS, iMUSE, OpenEye, Lansway, SmartAX, infoX, and TopEng are
trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this manual
are the property of their respective holders.
Notice
The information in this manual is subject to change without
notice. Every effort has been made in the preparation of this
manual to ensure accuracy of the contents, but all statements,
information, and recommendations in this manual do not constitute
the warranty of any kind, express or implied.
-
Huawei Technologies Proprietary
About This Manual
Release Notes
This manual applies to M900/M1800 BTS3012A Base Transceiver
Station V300R002.
Related Manuals
M900/M1800 BTS3012A Base Transceiver Station manual list and
usage:
Manual Volume Usage
System Description
System Principle
M900/M1800 BTS3012A Base Transceiver Station Technical
Manual
Auxiliary System
Providing the basic system knowledge of the BTS3012A base
transceiver station.
Cabinet Installation
Antenna Feeder Installation
M900/M1800 BTS3012A Base Transceiver Station Installation
Manual
Software Installation
Used to guide the installation onsite.
M900/M1800 BTS3X Series Base Transceiver Station Local
Maintenance Console Operation Manual
Used for routine maintenance of BTS3X.
M900/M1800 BTS3012A Base Transceiver Station Electronic
Manual
Containing abundant contents include all the manuals above.
Organization
TheM900/M1800 BTS3012A Base Transceiver Station Installation
Manual is mainly used to guide the onsite installation of the BTS3X
series base transceiver stations. It includes 3 volumes, and their
contents are listed as follows:
M900/M1800 BTS3012A Base Transceiver Station Installation Manual
Cabinet Installation: This manual is suitable for the BTS3012A of
Huawei. It is used to guide the BTS3X cabinet installation. The
whole installation procedure includes Installation preparations,
cabinet installation, and cable laying, the integrated cable
distribution
-
Huawei Technologies Proprietary
drawing is also provided. Users can complete the installation of
the entire cabinet under the guide of this volume.
M900/M1800 BTS3X Series Base Transceiver Station Installation
Manual Antenna Feeder Installation: This manual is suitable for the
BTS3X series base transceiver stations, which include BTS30, BTS312
and BTS3012A. It describes the antenna & feeder installation of
the BTS3X series base transceiver stations in details. Users can
learn about the composition of the antenna and feeder and check the
installation according to the contents in this volume.
M900/M1800 BTS3X Series Base Transceiver Station Installation
Manual Software Installation: This manual is suitable for the BTS3X
series base transceiver stations, which include BTS30, BTS312 and
BTS3012A. Users can implement software installation of the BTS3X
series base transceiver stations under the guide of this volume.
The software to be installed includes BTS3X maintenance software
and operation software.
Intended Audience
The manual is intended for the following readers:
z Installation engineers & technicians z Operation &
maintenance personnel
Conventions
This document uses the following conventions:
I. General conventions
Convention Description
Arial Normal paragraphs are in Arial.
Arial Narrow Warnings, cautions, notes and tips are in Arial
Narrow.
Bold Headings, Command, Command Description are in boldface.
II. Keyboard operation
Format Description
Press the key with key name expressed with a pointed bracket,
e.g. , , , or.
Press the keys concurrently; e.g. means the
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Huawei Technologies Proprietary
Format Description three keys should be pressed
concurrently.
Press the keys in turn, e.g. means the two keys should be
pressed in turn.
[Menu Option]
The item with a square bracket indicates the menu option, e.g.
[System] option on the main menu. The item with a pointed bracket
indicates the functional button option, e.g. button on some
interface.
[Menu1/Menu2/Menu3]
Multi-level menu options, e.g. [System/Option/Color setup] on
the main menu indicates [Color Setup] on the menu option of
[Option], which is on the menu option of [System].
III. Mouse operation
Action Description
Select Press and hold the primary mouse button (left mouse
button by default).
Click Select and release the primary mouse button without moving
the pointer.
Double-Click Press the primary mouse button twice continuously
and quickly without moving the pointer.
Drag Press and hold the primary mouse button and move the
pointer to a certain position.
IV. Symbols
Eye-catching symbols are also used in the manual to highlight
the points worthy of special attention during the operation. They
are defined as follows:
Caution, Warning, Danger: Means reader be extremely careful
during the
operation.
Note, Comment, Tip, Knowhow, Thought: Means a complementary
description.
Environmental Protection
This product has been designed to comply with the requirements
on environmental protection. For the proper storage, use and
disposal of this product, national laws and regulations must be
observed.
-
Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Contents
Huawei Technologies Proprietary
i
Table of Contents
Chapter 1 Hardware Structure of Antenna and Feeder System
............................................... 1-1
Chapter 2 Installation Procedure of Antenna and Feeder
System........................................... 2-1 2.1
Installation Procedure of BTS Antenna and Feeder
System............................................. 2-1 2.2
Procedure Description
.......................................................................................................
2-3
Chapter 3 Installation
Preparations.............................................................................................
3-1 3.1 Preparing Technical
Documents........................................................................................
3-1 3.2 Installation Environment Check
.........................................................................................
3-1 3.3 Qualifying
Personnel..........................................................................................................
3-1 3.4 Preparing Personnel for
Installation...................................................................................
3-2 3.5 Preparing Tools and
Instruments.......................................................................................
3-3 3.6 Testing
Antenna.................................................................................................................
3-3 3.7 Testing TTA
.......................................................................................................................
3-4 3.8 Adding Feeder
Connector..................................................................................................
3-5 3.9 Assembling Omnidirectional
Antenna................................................................................
3-6
3.9.1 Omnidirectional Antenna Accessories
....................................................................
3-6 3.9.2 Assembling Procedure
............................................................................................
3-7
3.10 Assembling Directional
Antenna......................................................................................
3-8 3.10.1 Directional Antenna Accessories
..........................................................................
3-8 3.10.2 Assembling Procedure
........................................................................................
3-10
Chapter 4 Installing Antenna and Feeder System
.....................................................................
4-1 4.1 Installing Outdoor Grounding Bar
......................................................................................
4-1
4.1.1 Structure of Outdoor Grounding Bar
.......................................................................
4-1 4.1.2 Installation
Requirements........................................................................................
4-1 4.1.3 Installation Procedure
.............................................................................................
4-1
4.2 Installing Antenna Support on Tower
Platform..................................................................
4-2 4.2.1 Structure of Antenna Support on Tower
Platform................................................... 4-3
4.2.2 Installation
Requirements........................................................................................
4-3 4.2.3 Installation Procedure
.............................................................................................
4-4
4.3 Installing Antenna Support on
Rooftop..............................................................................
4-5 4.3.1 Structure of Antenna Support on
Rooftop...............................................................
4-6 4.3.2 Installation
Requirements........................................................................................
4-6 4.3.3 Installing Antenna Support on Rooftop Without Walls
............................................ 4-7 4.3.4 Installing
Antenna Support onto Rooftop with
Wall................................................. 4-9
4.4 Installing Omnidirectional Antenna on Tower
Platform.................................................... 4-10
4.4.1 Structure of Omnidirectional Antenna on Tower
Platform..................................... 4-10 4.4.2
Installation
Requirements......................................................................................
4-11
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Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Contents
Huawei Technologies Proprietary
ii
4.4.3 Hoisting Antennas and Other Articles
...................................................................
4-12 4.4.4 Installation Procedure
...........................................................................................
4-12
4.5 Installing Omnidirectional Antenna on Rooftop
...............................................................
4-14 4.5.1 Structure of Omnidirectional Antenna on Tower Rooftop
..................................... 4-14 4.5.2 Hoisting Antennas
and Other Articles
...................................................................
4-15 4.5.3 Installation
Requirements......................................................................................
4-15 4.5.4 Installation Procedure
...........................................................................................
4-16
4.6 Installing Directional Antenna on Tower
Platform............................................................
4-17 4.6.1 Structure of Directional Antenna on Tower
Platform............................................. 4-17 4.6.2
Installation
Requirements......................................................................................
4-17 4.6.3 Hoisting Antennas and Other Articles
...................................................................
4-18 4.6.4 Installation Procedure
...........................................................................................
4-19
4.7 Installing Directional Antenna on Rooftop
.......................................................................
4-23 4.7.1 Structure of Directional Antenna on Rooftop
........................................................ 4-23 4.7.2
Hoisting Antennas and Other Articles
...................................................................
4-24 4.7.3 Installation
Requirements......................................................................................
4-24 4.7.4 Installation Procedure
...........................................................................................
4-25
4.8 Installing
TTA...................................................................................................................
4-26 4.8.1 Structure of
TTA....................................................................................................
4-26 4.8.2 Installation
Requirements......................................................................................
4-27 4.8.3 Installation Procedure
...........................................................................................
4-28 4.8.4 Installing Jumpers of TTA
.....................................................................................
4-29
4.9 Installing Feeder Window
................................................................................................
4-30 4.9.1 Structure of the Feeder Window
...........................................................................
4-31 4.9.2 Installation
Requirements......................................................................................
4-31 4.9.3 Installation Procedure
...........................................................................................
4-32
4.10 Installing and Grounding Feeders and
Jumpers............................................................
4-33 4.10.1 Cutting Feeders and Attaching Temporary Labels
............................................. 4-33 4.10.2 Hoisting
and Fixing Feeders
...............................................................................
4-34 4.10.3 Connecting Jumpers between the Antenna and the Feeder
.............................. 4-37 4.10.4 Connecting the Jumper
between TTA and the Feeder.......................................
4-38 4.10.5 Laying and Fixing
Feeders..................................................................................
4-39 4.10.6 Grounding Feeders
.............................................................................................
4-44
4.11 Leading Feeders into Equipment Room
........................................................................
4-51 4.11.1 Feeder Arrangement Principles
..........................................................................
4-51 4.11.2 Procedure to Lead Feeders into Equipment
Room............................................. 4-52
4.12 Installing
Jumpers..........................................................................................................
4-53 4.12.1 Installation Requirements for Jumpers
...............................................................
4-53 4.12.2 Installing Jumpers at the Cabinet Top
................................................................
4-54
4.13 Installing Feeder Lightning Arrester and its Grounding Bar
.......................................... 4-54 4.13.1 Installing
Feeder Lightning Arrester
....................................................................
4-54 4.13.2 Installing Grounding Bar of Lightning Arrester
.................................................... 4-55
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Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Contents
Huawei Technologies Proprietary
iii
4.14 Testing BTS Antenna and Feeder System
....................................................................
4-58 4.15 Waterproofing Outdoor
Connectors...............................................................................
4-58 4.16 Waterproofing Feeder
Window......................................................................................
4-60
Chapter 5 Checking
Installation...................................................................................................
5-1 5.1 Checking
Feeder................................................................................................................
5-1 5.2 Checking Grounding Bar
...................................................................................................
5-2 5.3 Checking the feeder encapsulation window
......................................................................
5-3 5.4 Checking
Antennas............................................................................................................
5-3 5.5 Checking the jumper and
TTA...........................................................................................
5-4
Appendix A Requirements for Antenna Spacing
.......................................................................A-1
A.1 For Omni-directional Antenna
...........................................................................................A-1
A.2 For Directional
Antennas...................................................................................................A-2
Appendix B Engineering Labels for Antenna and Feeder
System...........................................B-1 B.1
Engineering Labels for Feeders
........................................................................................B-1
B.2 Explanation of the Jumper Engineering Label
..................................................................B-3
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Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Figure Description
Huawei Technologies Proprietary
iv
Table of Figure Description
Figure 1-1 Typical structure of the antenna and feeder system
(with single-polarization antenna, without TTA, installed on the
rooftop)...............................................................
1-2
Figure 1-2 Typical structure of the antenna and feeder system
(with dual-polarization antenna and TTA, installed on the rooftop)
...................................................................................
1-3
Figure 1-3 Typical structure of the antenna and feeder system
(with single-polarization antenna and TTA, installed on the tower)
.......................................................................
1-4
Figure 2-1 Installation procedure of BTS antenna and feeder
system .................................. 2-2
Figure 3-1 Simple protection treatment of a feeder connector
.............................................. 3-5
Figure 3-2 Simple waterproof treatment for the connecting point
of the feeder .................... 3-5
Figure 3-3 outline of omnidirectional
antenna........................................................................3-6
Figure 3-4 Fixing clip for omnidirectional antenna
(1)............................................................
3-6
Figure 3-5 Fixing clip for omnidirectional antenna
(2)............................................................
3-7
Figure 3-6 Fixing of the omnidirectional
antenna...................................................................
3-8
Figure 3-7 outline of directional
antenna................................................................................
3-9
Figure 3-8 Fixing clip for the directional
antenna...................................................................
3-9
Figure 3-9 Pitch angle adjuster
............................................................................................
3-10
Figure 3-10 Finished connection of jumpers and directional
antenna ................................. 3-11
Figure 4-1 Structure of the outdoor grounding
bar.................................................................
4-1
Figure 4-2 Installation of the outdoor grounding
bar..............................................................
4-2
Figure 4-3 Cutaway section of the outdoor grounding
bar..................................................... 4-2
Figure 4-4 Structure of the antenna support on tower platform
(unit: mm)............................ 4-3
Figure 4-5 Installation of the lightning
rod..............................................................................
4-4
Figure 4-6 Installing the antenna support on the tower platform
........................................... 4-5
Figure 4-7 Structure of the antenna support on the
rooftop................................................... 4-6
Figure 4-8 Structure and installation of the antenna support
base ........................................ 4-8
Figure 4-9 Installing the fixing clip of the antenna support
onto the wall ............................... 4-9
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Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Figure Description
Huawei Technologies Proprietary
v
Figure 4-10 Fixing the antenna support onto the wall (no shorter
than 1200mm)................. 4-9
Figure 4-11 Fixing the antenna support onto the wall (shorter
than 1200mm).................... 4-10
Figure 4-12 Omnidirectional antenna on the tower
platform................................................ 4-11
Figure 4-13 Installing the omnidirectional antenna on the tower
platform ........................... 4-13
Figure 4-14 Installing the omnidirectional antenna onto the
support on the rooftop............ 4-15
Figure 4-15 Installing the directional antenna on the tower
platform................................... 4-17
Figure 4-16 Hoisting the directional antenna
.......................................................................
4-19
Figure 4-17 Relationship between the azimuth angle of the
directional antenna and the
sector.......................................................................................................................................
4-20
Figure 4-18 Diagram 1 for the directional antenna with the
mounting hole corresponding to the pitch angle
...............................................................................................................
4-21
Figure 4-19 Diagram 2 for the directional antenna with the
mounting hole corresponding to the pitch angle
...............................................................................................................
4-21
Figure 4-20 Angle display
....................................................................................................
4-22
Figure 4-21 Angle display before adjusting the pitch angle of
the antenna......................... 4-22
Figure 4-22 Angle display after adjusting the pitch angle of the
antenna ............................ 4-22
Figure 4-23 Installing the directional antenna on the rooftop
(without walls, with TTA)....... 4-23
Figure 4-24 Installing directional antenna on the rooftop (with
wall no shorter than 1200mm and
TTA)........................................................................................................................
4-24
Figure 4-25 Relationship between the azimuth angle of the
directional antenna and the
sector.......................................................................................................................................
4-26
Figure 4-26 Outline of a single TTA
.....................................................................................
4-27
Figure 4-27 Steel fastening bracket
.....................................................................................
4-28
Figure 4-28 Installing the TTA onto the pole
........................................................................
4-28
Figure 4-29 Jumper between the antenna and TTA
............................................................
4-29
Figure 4-30 Jumper between the TTA and the feeder
......................................................... 4-29
Figure 4-31 The jumper between the antenna and the TTA
................................................ 4-30
Figure 4-32 Size of the 12-hole feeder window (unit:
mm).................................................. 4-31
Figure 4-33 Structure of the 12-hole feeder
window............................................................
4-31
Figure 4-34 Mounting holes of the feeder window (unit: mm)
............................................. 4-32
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Installation Manual Antenna Feeder Installation M900/M1800 BTS3X
Series Base Transceiver Station Table of Figure Description
Huawei Technologies Proprietary
vi
Figure 4-35 Installing the feeder window
.............................................................................
4-33
Figure 4-36 Protection of the feeder connector (unit:
mm).................................................. 4-35
Figure 4-37 Fixing the upper end of the feeder on the tower
.............................................. 4-36
Figure 4-38 1-for-1 feeder fixing clips
..................................................................................
4-36
Figure 4-39 1-for-3 feeder fixing clips
..................................................................................
4-37
Figure 4-40 The jumper between the antenna and the feeder
............................................ 4-37
Figure 4-41 Jumper between the antenna and the
feeder................................................... 4-38
Figure 4-42 The jumper between the TTA and the feeder
................................................... 4-39
Figure 4-43 Fixing the feeders on the tower (using the 1-for-3
fixing clip) .......................... 4-40
Figure 4-44 Fixing the feeders on the tower (using the 1-for-2
fixing clip) .......................... 4-40
Figure 4-45 Laying the feeder from the tower top to the window
........................................ 4-41
Figure 4-46 Feeders in the fixing clips
.................................................................................
4-42
Figure 4-47 Laying the feeder from the rooftop to the feeder
window................................. 4-42
Figure 4-48 Leading the feeder into the equipment room through
the feeder window on the rooftop
...........................................................................................................................
4-43
Figure 4-49 Lightning protection grounding of the feeder (for
the antenna installed on the tower)
............................................................................................................................
4-45
Figure 4-50 Lightning protection grounding of the feeder down
the cabling ladder ............ 4-46
Figure 4-51 Installing the feeder grounding
clips.................................................................
4-47
Figure 4-52 Leading direction of the grounding cable of the
feeder grounding clip ............ 4-48
Figure 4-53 Connecting the grounding cable of the feeder
grounding clip to the steel plate of the
tower........................................................................................................................
4-49
Figure 4-54 Grounding before the feeder is led into the
equipment room (grounding bar available)
.......................................................................................................................
4-50
Figure 4-55 Grounding before the feeder is led into the
equipment room (grounding bar unavailable)
...................................................................................................................4-50
Figure 4-56 Layout when the feeders are led into the window
............................................ 4-51
Figure 4-57 Layout when the feeders are led into the window
............................................ 4-52
Figure 4-58 Lightning
arrester..............................................................................................
4-54
Figure 4-59 Installation position of lightning arrester
...........................................................
4-55
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Figure 4-60 Grounding bar of antenna feeder's lightning
arrester....................................... 4-56
Figure 4-61 Installing grounding bar on the cabling
rack..................................................... 4-56
Figure 4-62 Installing grounding bar on the wall
..................................................................
4-57
Figure 4-63 Grounding lightning arrester
.............................................................................
4-57
Figure 4-64 PVC tape and waterproof insulation
tape.........................................................
4-58
Figure 4-65 Wrapping up the feeder with waterproof insulation
tape .................................. 4-59
Figure 4-66 The feeder window going through the waterproof
treatment............................ 4-60
Figure B-1 Outdoor feeder tag (for the transmit end)
............................................................B-2
Figure B-2 Outdoor feeder tag (for the receive end)
.............................................................B-2
Figure B-3 Indoor feeder label (for the transmit & receive
end)............................................B-2
Figure B-4 Indoor jumper tag (for the transmit & receive
end)..............................................B-3
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Table of Table Description
Table 2-1 Installation guide of BTS antenna and feeder
system............................................ 2-3
Table 3-1 Technical documents for reference
........................................................................
3-1
Table 3-2 Requirements for the two roles
..............................................................................
3-2
Table 3-3 Preparations for different roles
...............................................................................
3-2
Table 3-4 Special tools and instruments for antenna and feeder
system installation ............ 3-3
Table 4-1 Introduction of the TTA ports
................................................................................
4-27
Table 5-1 Check items of the antenna and feeder
system..................................................... 5-1
Table A-1 Requirements for omni-directional antenna spacing
.............................................A-1
Table A-2 Requirements for directional antenna spacing
......................................................A-2
Table B-1 Description of the feeder engineering labels
.........................................................B-1
Table B-2 Description of the jumper engineering labels
........................................................B-3
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Chapter 1 Hardware Structure of Antenna and Feeder System
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Chapter 1 Hardware Structure of Antenna and Feeder System
The antenna and feeder system of indoor BTS composes of antenna,
feeder, jumper and feeder grounding clip, feeder window and TTA
(optional). That of outdoor BTS has the same composition except the
feeder window.
Figure 1-1, Figure 1-2 and Figure 1-3 show three typical
structures of the indoor BTS antenna and feeder system of
directional antenna. The antenna and feeder system of outdoor BTS
has the same structure.
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(1) Directional antenna (2) Antenna support (3) Outdoor jumper
(4) Outdoor cabling rack (5) Feeder fixing clip (6) Outdoor
grounding bar (7) Feeder window (8) Cable tie (9) Indoor jumper
(10) Indoor cabling rack (11) Feeder (12) Grounding cables of the
feeder grounding clip (13) To outdoor lightning protection
grounding cables
Figure 1-1 Typical structure of the antenna and feeder system
(with single-polarization antenna, without TTA, installed on the
rooftop)
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(1) Directional antenna (2) Tower-top amplifier (3) Outdoor
jumper (4) Outdoor cabling rack (5) Feeder fixing clip (6) Outdoor
grounding bar (7) Feeder window (8) Cable tie (9) Indoor jumper
(10) Indoor cabling rack (11) Feeder (12) Antenna support
Figure 1-2 Typical structure of the antenna and feeder system
(with dual-polarization antenna and TTA, installed on the
rooftop)
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(11)
(12)
(13)
(1)
(2)
(3)(4)
(5)(6)
(7)
(8)
(9)
(10)
(1) Lightning rod (2) Antenna support (3) Guard bar on the tower
platform(4) Tower-top amplifier (5) Cable tie (6) Directional
antenna (7) Waterproof curve of the jumper (8) Lightning protection
grounding clip of the feeder (9) Feeder (10) Outdoor cabling rack
(11) Feeder window (12) Tower grounding conductor (13) Outdoor
grounding bar
Figure 1-3 Typical structure of the antenna and feeder system
(with single-polarization antenna and TTA, installed on the
tower)
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Chapter 2 Installation Procedure of Antenna and Feeder
System
2.1 Installation Procedure of BTS Antenna and Feeder System
Figure 2-1 shows the installation procedure of indoor BTS
antenna and feeder system. Outdoor BTS antenna and feeder system
has the same installation procedure, except there is no step
Install feeder window and Lead feeders into equipment room
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Start
Install outdoor grounding bar
Install antenna support
Install antenna
Install TTA
Install feeder window
Install and groundfeeders and jumpers
TTA configured?
Lead feeders intoequipment room
Pass the test?
Warterproof outdoorconnectors
Find and handle the problem
End
Test antenna and feedersystem
Y
N
Y
N
Warterproof feederwindow
Install jumpers
Install lightning arrester for thefeeders and its grounding
bar
Figure 2-1 Installation procedure of BTS antenna and feeder
system
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Note: The installation method and procedure may differ according
to the different installation environment and the antenna adopted.
The project supervisor shall arrange the installation work
according to the engineering documents, the number of the
installing personnel, installation environment and the type of the
antenna.
2.2 Procedure Description
Table 2-1 shows the installation guide of BTS antenna and feeder
system.
Table 2-1 Installation guide of BTS antenna and feeder
system
For Refer to. . . Remark
Installing outdoor grounding bar
4.1 Installing Outdoor Grounding Bar
Optional. If there is a outdoor grounding bar up to
requirements, it is no need installing the outdoor grounding
bar.
4.2 Installing Antenna Support on Tower Platform Installing
antenna support 4.3 Installing Antenna Support on Rooftop
Optional. If there are antenna supports up to requirements, it
is no need installing the supports.
4.4 Installing Omnidirectional Antenna on Tower Platform
4.5 Installing Omnidirectional Antenna on Rooftop
4.6 Installing Directional Antenna on Tower Platform
Installing antenna
4.7 Installing Directional Antenna on Rooftop
Compulsory
Refer to corresponding sections according to the antenna type
and installation location.
Installing TTA 4.8 Installing TTA Optional. If the TTA is
configured, it needs to install the TTA, the jumpers between
antenna and TTA and the jumpers between feeder and TTA.
Installing feeder window
4.9 Installing Feeder Window For indoor BTS: Optional. If there
is a feeder window up to requirements in equipment room, it is no
need installing feeder window.
For outdoor BTS: not needed
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For Refer to. . . Remark
Installing and grounding feeders and jumpers
4.10 Installing and Grounding Feeders and Jumpers
Compulsory
Leading feeders into equipment room
4.11 Leading Feeders into Equipment Room
For indoor BTS: compulsory
For outdoor BTS: not needed
Installing jumpers
4.12 installing jumpers Compulsory
Installing lightning arrester for the feeders and its grounding
bar
4.13 Installing lightning arrester
Compulsory
Testing BTS antenna and feeder system
4.14 Testing BTS Antenna and Feeder System
Compulsory
Test the VSWR of BTS antenna and feeder system to confirm the
installation quality of the system.
Encapsulating outdoor connectors
4.15 Waterproofing Outdoor Connectors
Compulsory
Encapsulating feeder window
4.16 Waterproofing Feeder Window
For indoor BTS: compulsory
For outdoor BTS: not needed
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Chapter 3 Installation Preparations
3.1 Preparing Technical Documents
Table 3-1 shows the technical documents for reference in the
installation.
Table 3-1 Technical documents for reference
Used to Documents for example
M900/M1800 Digital Cellular Mobile Base Station Network
Planning
M900/M1800 Digital Cellular Mobile Base Station Project
Design
Instruct engineering design
Engineering Design and Construction Drawings
Instruct engineering installation
M900/M1800 BTS30 Base Transceiver Station Installation
Manual
M900/M1800 BTS312A Base Transceiver Station Installation
Manual
M900/M1800 BTS3012A Base Transceiver Station Installation
Manual
Note: The above documents are only for your reference, and are
not inclusive. There might be other documents provided on site.
3.2 Installation Environment Check
Check the installation environment according to the Installation
Environment Checklist. If the environment is not suitable for the
deployment, improve the environment.
3.3 Qualifying Personnel
A project supervisor is in charge of antenna and feeder system
installation, while installers carry out the installation.
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Table 3-2 lists the requirements for the two roles.
Table 3-2 Requirements for the two roles
Role Requirements
Project Supervisor
Safety-conscious
Familiar with materials, tools, and methods related to the
installation of the antenna and feeder system
Familiar with installation flow and methods of all the parts
Tower Installer
Possessing the relevant certificates after training
In good health, free of alcohol, and under the coverage of
personal safety insurance
Using the safeties correctly
Wearing safety working suites and anti-slippery shoes during
work
3.4 Preparing Personnel for Installation
Table 3-3 lists preparations for different roles.
Table 3-3 Preparations for different roles
Role Preparations
Project Supervisor
Contacting customers on the site to prepare the instruments and
tools required.
Preparing the keys to the rooms or roof corridor through which
the feeders run.
All persons on the site
Wearing safety helmets
Each installation team must prepare a first-aid kit.
Persons under the tower
Keeping unrelated persons, especially children away from the
installation site.
Taking care of installation parts and instruments to prevent
loss or damage.
Persons on the tower
Fastening safety belts.
Carrying the tool kit and some simple bandages such as the
Woundplast handy.
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Caution:
z When multiple persons are to climb the tower, the person
carrying the tool kit should climb up last and down first lest a
fallen tool injures others.
z Keep the tool kit closed during the installation and open it
only when necessary.
3.5 Preparing Tools and Instruments
Table 3-4 lists special tools and instruments for installing the
antenna and feeder system.
The tool list for indoor equipment installation lists other
common tools, such as percussion drill and screwdrivers.
Table 3-4 Special tools and instruments for antenna and feeder
system installation
Measuring tools An angle display, A compass
Suspension-mounting tools
An assembly pulley, Two ropes (1 thin and 1thick, both 150m
long), Feeder noose
Tools for feeders
A feeder nipper, Cable cutter (applicable for the feeder
specification), Tools for making feeders (1/2", 7/8"), Blast lamp
(to warm and soften the waterproof and sealing materials in cold
environment)
Protective tools
Safety belts (for personnel operating out of the tower
platform), Protecting caps
Safety ropes, Thick union suits, RF protective clothing
Tools from the local customer Double ladder, Lifting tools for
the main feeder wheel spindle
Others Canvas bag for tools, Gloves, Walkie-talkie,
Multi-purpose outlets
Test tools Cymometer, Test mobile phone (optional), Radio
analyzer
3.6 Testing Antenna
To guarantee the installation quality of the antenna and feeder
system, test the antenna as follows before the installation.
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1) Unpack a new antenna. 2) Examine the antenna for any visible
damage, crack or connector problem.
If any: do not use it any more and contact the personnel
concerned immediately. Go to step 1)
If no problem: go to next step.
3) Connect the antenna with jumper. 4) Test the Voltage Standing
Wave Ratio (VSWR) of the antenna using a radio
analyzer in different orientations.
If the VSWR is higher than 1.5 in all orientations: there may be
problems with the antenna or its connectors. Go to step 5).
If the VSWR is higher than 1.5 just in some orientations: it is
not definite that the antenna has problems. Install the antenna and
test its VSWR, if it is still high than 1.5, replace the
antenna.
If the VSWR is lower than 1.5: the antenna is normal and ready
for installation.
5) Examine the connectors or replace the antenna and go to step
3).
3.7 Testing TTA
Caution:
During the test, make sure that the port not being tested is
connected with a 50 matched terminal load. If not, error of the
test result may be great.
To guarantee the installation quality of the antenna and feeder
system, test the feeder equipment as follows before the
installation.
1) Unpack a new TTA. 2) Examine the TTA for any obvious damage.
3) Test the VSWR on both ports.
If the test result is much different from the corresponding
specification: the TTA is abnormal, replace the TTA and go to step
1).
If the test result meets the specification: the TTA is normal
and ready for installation.
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Note: In above test, the equipment is not alive. If possible,
you can also power on the TTA and test its current. If the TTA
current is within the range of 50-175 mA, the VSWR is considered
normal.
3.8 Adding Feeder Connector
It needs to add connectors to the outdoor feeders on the
installation site before installing feeders. For the safe cause, it
is recommended to add the connectors on ground.
There are two types of connectors: 7/16 DIN and N. The adding
methods for the two types are the same. Add the feeder connectors
as follows:
1) Add the feeder connector follow the instruction in the manual
in the packing box to.
2) Wrap the connectors up using soft materials such as sponge
for protection purpose before hoisting them, as shown in Figure
3-1.
Figure 3-1 Simple protection treatment of a feeder connector
When failing to add a connector to a feeder or connect the
connector to the jumpers in a day, waterproof the connecting point
of the feeder in either manner below:
z Wrap up the connecting point with waterproof tape, as shown in
Figure 3-2. z Cover the connecting point with a plastic bag and
then wrap it up with waterproof
tape.
Figure 3-2 Simple waterproof treatment for the connecting point
of the feeder
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3.9 Assembling Omnidirectional Antenna
3.9.1 Omnidirectional Antenna Accessories
Figure 3-3 shows the outline of the omnidirectional antenna.
Figure 3-3 outline of omnidirectional antenna
The accessories of an omnidirectional antenna include:
z Antenna fixing clips (shown in Figure 3-4 and Figure 3-5). z
Jumper
Figure 3-4 Fixing clip for omnidirectional antenna (1)
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(1) (2)
(3) (1) Fixing piece (2) U bolt M12580 (3) Nut M12
Figure 3-5 Fixing clip for omnidirectional antenna (2)
Note: There are many types of fixing clips for omnidirectional
antenna. Figure 3-4 and Figure 3-5 illustrate two of them. The
antenna installation method varies from one fixing clip to
another.
3.9.2 Assembling Procedure
To simplify the operations on the tower, assemble the
omnidirectional antenna on the ground. For assembling method, refer
to the instruction in the antenna packing box. After assembling,
keep the instruction for later reference.
The procedure of assembling the omnidirectional antenna using
the fixing clip in Figure 3-4 is as follows:
1) Add the two fixing clips onto the omnidirectional antenna. 2)
Tighten their connection at the contacting points as shown in
Figure 3-6.
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(1)
(2)
(3)
(1) Omnidirectional antenna (2) Antenna jacket (3) Fixing
clip
Figure 3-6 Fixing of the omnidirectional antenna
3) Connect the jumper connector with the antenna connector. 4)
Tighten the connection. 5) Waterproof the connectors joining the
antenna and the feeder. See "4.10.1
Waterproof Treatment for Outdoor Connectors".
The assembling of omnidirectional antenna completes.
Note: You can perform steps 3), 4) and 5) on the tower.
3.10 Assembling Directional Antenna
3.10.1 Directional Antenna Accessories
Figure 3-7 shows the outline of the directional antenna.
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Figure 3-7 outline of directional antenna
The accessories of directional antenna include:
z Antenna fixing clip (shown in Figure 3-8) z Pitch angle
adjuster (shown in Figure 3-9) z Jumper
Figure 3-8 Fixing clip for the directional antenna
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Figure 3-9 Pitch angle adjuster
3.10.2 Assembling Procedure
To simplify the operations on the tower, assemble the
directional antenna on the ground. For assembling method, refer to
the instruction in the antenna packing box. After assembling, keep
the instruction for later reference.
The procedure of assembling directional antenna is as
follows:
1) Identify the top and bottom fixed adjusting points of the
antenna according to the labels on the back of the antenna.
Note: The top is for the pitch angle adjuster and the bottom for
fixing the antenna on the support.
2) Install the accessories to their proper places in strict
accordance with the accessory assembly drawings provided by the
supplier.
3) Connect the jumper connector with the antenna connector. 4)
Tighten the connection. 5) Waterproof and seal the connecting
point. See "4.10.1 Waterproof Treatment for
Outdoor Connectors".
Figure 3-10 shows the waterproofed connection of the jumpers and
the directional antenna.
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Figure 3-10 Finished connection of jumpers and directional
antenna
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Chapter 4 Installing Antenna and Feeder System
4.1 Installing Outdoor Grounding Bar
Note: If the outdoor grounding bars are available, skip this
section.
4.1.1 Structure of Outdoor Grounding Bar
The outdoor grounding bar is mainly used to connect the
protection and work grounding cables of the cabinet. Figure 4-1
shows its structure.
(1)
(1) Bolt M8
Figure 4-1 Structure of the outdoor grounding bar
4.1.2 Installation Requirements
Meet the following requirements when install the outdoor
grounding bar.
z Install the outdoor grounding bar on the wall with the same
height of the cabling rack and close to the BTS cabinet.
z Install the outdoor grounding bar horizontally. z Insulating
washer should be applied to the expansion bolt to ensure good
insulation of the grounding bar from the wall.
4.1.3 Installation Procedure
Install the outdoor grounding bar as follows:
1) Locate the installation place according to the engineering
plan.
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2) Install the outdoor grounding bar on the wall horizontally
using expansion bolts, as shown in Figure 4-2 and Figure 4-3.
(1)
(2)(3)
(4)
(5)
(6)
(1) Bolt M12 (2) Spring washer 12 (3) Big flat washer (4)
Insulating washer1 (5) Insulating washer2 (6) Expansion tube and
expansion nut
Figure 4-2 Installation of the outdoor grounding bar
(1)(2)
(3)
(4)
(6)
(7)
(5)
(1) Bolt M12 (2) Spring washer 12 (3) Big flat washer (4)
Insulating washer1 (5) Outdoor grounding bar (6) Insulating washer2
(7) Expansion tube and expansion nut
Figure 4-3 Cutaway section of the outdoor grounding bar
4.2 Installing Antenna Support on Tower Platform
Note: If a satisfactory antenna support is available on the
site, skip this section.
The requirements and methods of antenna support installation
vary with antenna types and installation environments. This section
only describes only one type of support on the tower platform. For
other cases, refer to the instructions delivered with the antenna
support.
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4.2.1 Structure of Antenna Support on Tower Platform
There are several types of antenna supports for the installation
on tower platform. This section takes the antenna support shown in
Figure 4-4 as an example.
(1)Bolt M12220 (2) Connecting plate (3) Bolt M1245 (4) Expansion
link (5) Fixed link (6) Dwang (7) Stiffener
Figure 4-4 Structure of the antenna support on tower platform
(unit: mm)
4.2.2 Installation Requirements
Observe the following requirements when installing the antenna
support on the tower platform:
z The installation plane of the antenna support is perpendicular
to the level plane. z Install the mast for the tower lightning rod
separately. Make sure that the
lightning rod is high enough to bring all antennas under its
protection, as shown in Figure 4-5.
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(1) Lightning rod (2) Antenna (3) Mast for the lightning rod
Figure 4-5 Installation of the lightning rod
z Be sure to install the antenna support in the correct
direction to guarantee the Rx and Tx performance and direction
adjustment of the directional antenna.
z If necessary, stay the antenna support to avoid deformation. z
Reinforce the dwang using a stiffener. Trim the expansion link and
dwang to
meet actual needs. Seal the cross section by welding it with a
plate for waterproof purpose.
z Eliminate the existence of dry and open welds. Select the
support made of galvanized steel. Coat the support with the
antirust aluminum paint.
4.2.3 Installation Procedure
Install the antenna support as follows:
I. Hoist antenna support to tower
1) Mount a fixed pulley on the tower top. 2) Use one or two
ropes to hoist the support to the tower platform through the
fixed
pulley.
When the support is going up, use another rope to maintain the
rising direction of the support.
II. Position antenna support
Determine the installation position of the antenna support on
the tower platform according to the antenna and feeder installation
drawing in the engineering design drawings.
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III. Fix antenna support
1) Hang the support out of the tower platform. 2) Fix the
support onto the tower using a U fixing clip (including the
connecting
piece and the U bolt), as shown in Figure 4-6.
(1)
(2)
(3) (1) Connecting piece (2) Crossbeam of the tower (3) U
bolt
Figure 4-6 Installing the antenna support on the tower
platform
3) Connect the guardrails on the tower platform with the
connecting plate using bolts M1245.
Note: If it is difficult to connect the connecting plate with
the guardrail, weld the two parts securely. Make sure that there is
no dry or open weld.
4) Coat all the welds and the support with antirusting
paint.
The installation of antenna support completes.
4.3 Installing Antenna Support on Rooftop
Note: If an antenna support meeting the requirements is
available on the site, skip this section.
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The requirements and the installation methods of the support
differ according to different antenna types and installation
environments. This section only describes the installation of one
type of the support on the rooftop. As for other cases, refer to
the instructions delivered with the antenna support.
4.3.1 Structure of Antenna Support on Rooftop
There are several types of antenna supports for the installation
on the rooftop. Take the following one shown in Figure 4-7 for
example.
(1)(2)
(3)
(4)
(5)
(6)
(7)
(8)
(1) Antenna lightning rod (2) Weld (3) Main supporting post 2
(4) Bolt M1080 (5) Stiffener (6) Main supporting post 1 (7) Mat of
the support post (8) Anchor of the stiffener
Figure 4-7 Structure of the antenna support on the rooftop
4.3.2 Installation Requirements
Observe the following requirements when installing the antenna
support on the rooftop:
z Install the connecting pieces for the stiffener where they do
not impede adjustment of the antenna orientation and pitch
angle.
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z The antenna support is perpendicular to the level plane. z For
the installation of the directional antenna on the rooftop, equip
the antenna
support with a lightning rod and connect it with the lightning
net of the building. z For the installation of the omnidirectional
antenna on the rooftop, install the
lightning rod on a separate support instead of the antenna
support. z To install the lightning rod on the support of the
omnidirectional antennas, the
antennas is hung over out of the support 1~1.5m distant. z Coat
the antenna support and all welded parts with the antirusting
paint. Connect
all welds securely. Eliminate the existence of dry and open
welds.
4.3.3 Installing Antenna Support on Rooftop Without Walls
Install the antenna support shown in Figure 4-7 on the rooftop
without walls as follows:
1) Hoist the antenna support to the rooftop. 2) Determine the
installation location of the antenna support on the rooftop
according to the antenna and feeder installation drawing in the
engineering design drawings.
3) Weld the lightning rod onto the main supporting post of the
antenna (with their centerlines on the same straight line).
Note: There is no lightning rod on the support to be installed
with omnidirectional antennas. The lightning rod is installed on a
separate support.
4) Fix the base of the antenna support vertically onto the
surface of the rooftop using eight bolts M1045, as shown in Figure
4-8.
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(1 )
(2 )
(3 )
(4 ) (5 )
(1) Hex bolt M1050 (2) Connecting piece of the stiffener (3)
Main supporting post 1 of the antenna (4) Mat of the main
supporting post of the antenna (5) Expansion bolt M1050
Figure 4-8 Structure and installation of the antenna support
base
5) Reinforce the main supporting post by using the
stiffener.
a) Decide the length of the stiffener according to that of the
main supporting post.
b) As shown in Figure 4-7, connect the stiffener with the main
supporting post securely using the connecting pieces of the
stiffener.
c) Connect the anchor onto the stiffener.
d) Fix each anchor of the stiffener onto the surface of the
rooftop using two expansion bolts M1045.
e) Ensure that no deformation may happen to the stiffener.
6) As shown in Figure 4-7, connect the main supporting posts 1
and 2 of the support securely using six bolts M1080.
7) For the antenna support not welded with the outdoor cabling
rack on the rooftop or welded with the cabling rack not connected
with the lightning net of the building, connect its base with the
lightning net of the building using the lightning connecting bar
(the lightning connecting bar serves as the mounting piece of the
outdoor cabling rack).
8) Coat the antenna support base and all welded parts with the
antirust paint. 9) Cover the base of the antenna support on the
rooftop, the anchor of the stiffener
as well as their expansion bolts (used for their connection with
the floor) with concrete for protection.
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4.3.4 Installing Antenna Support onto Rooftop with Wall
If the rooftop is enclosed with walls, install the antenna
support on a wall. Figure 4-9 shows how to mount the fixing clip of
the antenna support onto the wall.
(1)
(2)
(3) (4) (5) (1) Expansion bolt M12120 (2) V connecting piece (3)
180 connecting piece (4) Bolt M12140 (5) Fixing plate
Figure 4-9 Installing the fixing clip of the antenna support
onto the wall
When the wall is no shorter than 1200 mm, fix both fixing points
of the support onto the wall using expansion bolts, as shown in
Figure 4-10.
Figure 4-10 Fixing the antenna support onto the wall (no shorter
than 1200mm)
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When the wall is shorter than 1200mm, fix one fixing point of
the main supporting post onto the wall using expansion bolts and
the other onto the surface of the rooftop, as shown in Figure
4-11.
Figure 4-11 Fixing the antenna support onto the wall (shorter
than 1200mm)
4.4 Installing Omnidirectional Antenna on Tower Platform
4.4.1 Structure of Omnidirectional Antenna on Tower Platform
Figure 4-12 shows the omnidirectional antenna on the tower
platform.
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(1) (2)
(3)
(4)
(5)
(1) Tower (2) TTA (3) Antenna support at the tower top (4)
Omnidirectional antenna (5) Cable tie
Figure 4-12 Omnidirectional antenna on the tower platform
4.4.2 Installation Requirements
Observe the following requirements when installing
omnidirectional antennas onto the tower platform:
z Make sure that all antennas are in the protection coverage of
the lightning rod and at least 2 m away from the tower body.
z The antenna axis is perpendicular to the level plane with a
permissible error of less than 1o.
z The gain of omnidirectional antenna is 11 dBi, and the
isolation degree is 30 dB. For details, refer to Appendix A
Requirements for Antenna Spacing.
z Make waterproof curves for the antenna jumper.
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4.4.3 Hoisting Antennas and Other Articles
Caution:
z Make sure that no person stands right below the hoisted
object. z The personnel working outside the tower platform must
wear safety belts and
harnesses. z Pack the small metal articles such as fixing pieces
and spanners in a tool bag and
then hoist the bag. z Secure the hoisted articles on the tower
platform against falling.
The procedure of hoisting antennas and other articles is as
follows:
1) Mount a fixed pulley on the tower top. 2) Run a rope through
the pulley, and knot the rope at each end of the antenna. 3) The
personnel on the tower and on the ground cooperate to hoist the
antenna to
the installation location on the tower platform.
Note: When the personnel on the tower pull the rope, the
personnel on the ground must keep holding the rope to avoid
collision between the antenna and the tower.
4.4.4 Installation Procedure
Install the omnidirectional antenna on tower platform as
follows:
I. Position the antenna
Decide the installation location of the antenna according to the
engineering design drawings.
II. Fix the antenna onto the support
1) Place the feeding point of the antenna facedown and the
sheathing near the main supporting post of the support.
2) Fix the antenna to the fixing bar of the support, as shown in
the left part of Figure 4-13.
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Caution:
The sheathing top should be at the same height as or slightly
higher than the support top. The transmission part of the antenna
must be higher than the top of the fixing bar. The antenna should
not be installed too tight (bringing damages to antenna sheathing)
or too loose (making it easy to move and fall).
(7 )
(1) Omnidirectional antenna (2) Antenna fixing clip (3) Fixing
bar (4) Connecting piece (5) Crossbeam of the tower (6) U bolt (7)
Waterproof curve of the jumper
Figure 4-13 Installing the omnidirectional antenna on the tower
platform
3) Use an angular tester to check the perpendicular of the
antenna axis.
If the error is equal to or greater than 1: adjust the antenna
and go to step 2).
If the error is smaller than 1: go to next step. 4) Fasten the
antenna until the antenna cannot be moved by any hand pull or
push.
III. Lay the antenna jumper
1) Make a waterproof curve for the jumper at the end close to
antenna. 2) Lay and bind the jumper along the cross bar of the
support using black cable ties,
and cut off the extra tail of the cable tie.
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Note: z Bend the jumpers in a natural manner. The bending radius
is 20 times longer than
the jumper diameter. z Bind the cable ties in the same
direction. When cutting the cable ties, leave a
slack of 3~5 mm lest the cable ties fall off the jumper due to
temperature change.
IV. Fix the dwang of the support
1) Hang the dwang of the support installed with the antenna out
of the tower platform.
2) Use bolts to fix the connecting panel.
The installation of omnidirectional antenna on tower platform
completes.
Note: If there is no guardrail on the tower platform, set up a
stout wood access board across the arms of two supports to form a
working platform for the installation personnel safety. After
installing the antenna, TTA, and feeders on one side, change the
location of the wood board on the support arms to fix other
antennas, TTAs and feeders.
4.5 Installing Omnidirectional Antenna on Rooftop
4.5.1 Structure of Omnidirectional Antenna on Tower Rooftop
Figure 4-14 shows the installation of omnidirectional antennas
onto the supports on rooftop.
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(1)
(2)
(3)
(4)
(5)
(6)
(7)
(1) Antenna lightning rod (2) Antenna (3) Fixing clip for the
omnidirectional antenna (4) Main supporting post (5) Road (6)
Stiffener (7) Rooftop
Figure 4-14 Installing the omnidirectional antenna onto the
support on the rooftop
4.5.2 Hoisting Antennas and Other Articles
Carry/Hoist antennas and other articles to the rooftop. Be sure
to keep the articles from collision during the course. The method
and the caution for hoisting are the same as those for the hoisting
on the tower platform. For details, refer to 4.4.3 Hoisting
Antennas and Other Articles.
4.5.3 Installation Requirements
The requirements of the isolation degree and the installation
interval of the omnidirectional antennas are the same as those for
installing the omnidirectional antennas on the tower platform. For
details, refer to 4.4.2 Installation Requirements. In addition,
note the following points:
z Keep the antenna away from barriers such as high-rise
buildings to avoid blind areas.
z If there is no lightning rod on the top of antenna support,
install a lightning rod separately and make sure that the
horizontal distance between the omnidirectional antenna and the
lightning rod is no less than 2.5 m. In addition,
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make sure that the antenna is in the lightning protection
coverage, the tilt angle 30 of the lightning rod.
z If there is lightning rod on the top of the antenna support,
make sure the distance for hanging over the support is 1~1.5 m.
4.5.4 Installation Procedure
Caution:
z Bend the jumpers in a natural manner. The bending radius is 20
times longer than the jumper diameter.
z Bind the cable ties in the same direction. z When cutting the
cable ties, leave a slack of 3~5 mm lest the cable ties fall off
the
jumper due to temperature change.
The procedure of installing the omnidirectional antenna on the
rooftop is as follows:
1) Decide the installation location of the antenna according to
the engineering design drawings.
2) Place the feeding point of the antenna facedown and the
sheathing near the main supporting post of the support, and then
fix the antenna to the fixing bar of the support.
Caution:
The top end of the sheathing is at the same height as or
slightly higher than the support top. The transmission part of the
antenna is higher than the top of the fixing bar. Fix the antenna
with appropriate tightness for weight bearing and wind resistance,
avoiding loose connection and damage to the antenna sheathing.
3) Use an angular tester to check whether the antenna axis is
perpendicular to the horizontal plane. If the error is equal to or
greater than !1, adjust and re-fasten it.
4) Tighten up the antenna until the antenna cannot be moved by
any hand pull or push.
5) Make the waterproof curve of the jumper, lay and bind the
jumper along the cross bar of the support using black cable ties,
and cut off the extra tail of the cable ties.
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4.6 Installing Directional Antenna on Tower Platform
4.6.1 Structure of Directional Antenna on Tower Platform
Figure 4-15 shows the installation of the directional antennas
on the tower platform.
(1) Tower (2) Antenna support on the top of the tower (3)
Directional antenna (4) Cable tie
Figure 4-15 Installing the directional antenna on the tower
platform
4.6.2 Installation Requirements
Observe the following requirements when installing directional
antennas on the tower platform:
z Make sure that all antennas stand in the protection coverage
of the lightning rod. No interference from the tower structure
should exist in the forward direction of the antenna. The antenna
must be more than 1 m away from the tower platform.
z The gain of antenna is 15 dBi, the isolation degree 30 dB, and
the semi-power angle 65. For details about antenna interval, refer
to Appendix A Requirements for Antenna Spacing.
z Make waterproof curves for antenna jumpers.
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4.6.3 Hoisting Antennas and Other Articles
Caution:
z During the hoisting, make sure that no person stands right
below the hoisted object.
z The personnel working outside the tower platform must wear
safety belts and harnesses.
z Pack the small metal articles such as fixing pieces and
spanners in a tool bag and then hoist the bag.
z Secure the hoisted articles on the tower platform against
falling.
The procedure of hoisting antennas and other articles is as
follows:
1) Mount a fixed pulley on the tower top. 2) Run a rope through
the pulley, and knot the rope at each end of the antenna. 3) The
personnel on the tower and on the ground cooperate to hoist the
antenna to
the installation location.
Note: When the personnel on the tower pull the rope, the
personnel on the ground must keep holding the rope to avoid
collision between the antenna and the building.
Figure 4-16 shows how to hoist the directional antenna.
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Figure 4-16 Hoisting the directional antenna
4.6.4 Installation Procedure
Caution:
z Be sure to protect the installed jumpers from damage when
installing and adjusting the antenna.
z When using the compass, keep it away from the tower and other
iron and steel objects. Be careful of any geomagnetic abnormality
that can interfere in the accurate operation of the compass.
z Bend the jumpers in a natural manner. The bending radius is 20
times longer than the jumper diameter.
z Bind the cable ties in the same direction. When cutting the
cable ties, leave a slack of 3~5 mm lest the cable ties fall off
the jumper due to temperature change.
z Define the main and diversity ports for the 2-way directional
antennas of the same type consistently. For example, define the -45
port as main port, and the 45 port as diversity port.
Install the directional antenna on tower platform as
follows:
I. Position the antenna
Decide the installation direction of the antenna according to
the project installation drawings.
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II. Fix the antenna onto the support
1) Fix the antenna onto the main supporting post.
Note: The antenna should not be installed too tight (bringing
damages to antenna sheathing) or too loose (making it easy to move
and fall).
2) Adjust the azimuth angle of the antenna.
Determine the azimuth angle using a compass according to the
engineering design documents. Normally, sector 1 is in the north.
Sector 2 lies in the clockwise 120 direction and sector 3 in the
next clockwise 120 direction, as shown in Figure 4-17.
Sector 1North
120
120
Sector 2Sector 3
Figure 4-17 Relationship between the azimuth angle of the
directional antenna and the sector
Adjust the azimuth angle until it satisfies the design
specification. Usually, the error of the azimuth angel is no
greater than 5.
3) Fasten the lower fixing clip of the antenna until it cannot
be moved by any hand pull or push.
III. Adjust the pitch angle of the antenna
z For the antennas whose mounting holes have their corresponding
pitch angles:
Install the antenna directly into the mounting hole as shown in
Figure 4-18 and Figure 4-19. Make sure that the supporting post is
perpendicular to the ground during the installation.
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Get the mounting hole
number accordi