~$31040851-bts3012a installation manual-antenna feeder install

5/24/2018 ~$31040851-BTS3012A Installation Manual-Antenna Feeder Install

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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..........................



4.3 Installing Antenna Support on Rooftop 4-5...................................................

4.3.1 Structure of Antenna Support on Rooftop 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..............


4.4.3 Hoisting Antennas and Other Articles 4-12............................................4.4.4 Installation Procedure 4-12....................................................................


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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............................................



4.6 Installing Directional Antenna on Tower Platform 4-17..................................

4.6.1 Structure of Directional Antenna on Tower Platform 4-17......................




4.7 Installing Directional Antenna on Rooftop 4-23..............................................

4.7.1 Structure of Directional Antenna on Rooftop 4-23.................................




4.8 Installing TTA 4-26.........................................................................................

4.8.1 Structure of TTA 4-26.............................................................................



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..............................................................


4.10 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...........................................


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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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Huawei Technologies Proprietary

HUAWEI

1. Cabinet Installation

2. Antenna Feeder Installation

3. Software Installation

M900/M1800 BTS3012A Base Transceiver Station

Installation Manual

V300R002


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Installation Manual

Volume Cabinet Installation

Manual Version T2-030450-20050225-C-3.22

Product Version V300R002

BOM 31040850

Volume Antenna Feeder Installation



BOM 31040851

Volume Software Installation



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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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&C08iNET, 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.


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About This Manual

Release Notes

This manual applies to M900/M1800 BTS3012A Base Transceiver Station V300R002.

Related Manuals

M900/M1800 BTS3012ABase Transceiver Station manual list and usage:Manual Volume Usage

System Description

System Principle

M900/M1800 BTS3012ABase Transceiver StationTechnical Manual

Auxiliary System

Providing the basicsystem knowledge of theBTS3012A basetransceiver station.

Cabinet Installation

Antenna FeederInstallation

M900/M1800 BTS3012ABase Transceiver StationInstallation Manual

Software Installation

Used to guide theinstallation onsite.

M900/M1800 BTS3X SeriesBase Transceiver StationLocal Maintenance ConsoleOperation Manual

Used for routinemaintenance of BTS3X.

M900/M1800 BTS3012ABase Transceiver StationElectronic Manual

Containing abundantcontents include all themanuals above.

Organization

TheM900/M1800 BTS3012A Base Transceiver Station Installation Manualis 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


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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 basetransceiver 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 andoperation software.

Intended Audience

The manual is intended for the following readers:

Installation engineers & technicians

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.

BoldHeadings, Command, Command Description are inboldface.

II. Keyboard operation

Format Description

Press the key with key name expressed with a pointedbracket, e.g. , , , or.

Press the keys concurrently; e.g. means the


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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 apointed 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 menuoption of [Option], which is on the menu option of [System].

III. Mouse operation

Action Description

SelectPress and hold the primary mouse button (left mousebutton by default).

ClickSelect and release the primary mouse button withoutmoving the pointer.

Double-ClickPress the primary mouse button twice continuously andquickly without moving the pointer.

DragPress 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.


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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station Table of Contents


i

Table of Contents

Chapter 1 Hardware Structure of Antenna and Feeder System ............................................... 1-1Chapter 2 Installation Procedure of Antenna and Feeder System........................................... 2-1

2.1 Installation Procedure of BTS Antenna and Feeder System............................................. 2-12.2 Procedure Description ....................................................................................................... 2-3

Chapter 3 Installation Preparations............................................................................................. 3-13.1 Preparing Technical Documents........................................................................................ 3-13.2 Installation Environment Check ......................................................................................... 3-13.3 Qualifying Personnel.......................................................................................................... 3-13.4 Preparing Personnel for Installation................................................................................... 3-23.5 Preparing Tools and Instruments....................................................................................... 3-33.6 Testing Antenna................................................................................................................. 3-33.7 Testing TTA ....................................................................................................................... 3-43.8 Adding Feeder Connector.................................................................................................. 3-53.9 Assembling Omnidirectional Antenna................................................................................ 3-6

3.9.1 Omnidirectional Antenna Accessories .................................................................... 3-63.9.2 Assembling Procedure............................................................................................ 3-7

3.10 Assembling Directional Antenna...................................................................................... 3-83.10.1 Directional Antenna Accessories .......................................................................... 3-83.10.2 Assembling Procedure........................................................................................ 3-10

Chapter 4 Installing Antenna and Feeder System ..................................................................... 4-14.1 Installing Outdoor Grounding Bar ...................................................................................... 4-1

4.1.1 Structure of Outdoor Grounding Bar....................................................................... 4-14.1.2 Installation Requirements........................................................................................ 4-14.1.3 Installation Procedure .............................................................................................4-1

4.2 Installing Antenna Support on Tower Platform.................................................................. 4-24.2.1 Structure of Antenna Support on Tower Platform................................................... 4-34.2.2 Installation Requirements........................................................................................ 4-34.2.3 Installation Procedure .............................................................................................4-4

4.3 Installing Antenna Support on Rooftop.............................................................................. 4-54.3.1 Structure of Antenna Support on Rooftop............................................................... 4-64.3.2 Installation Requirements........................................................................................ 4-64.3.3 Installing Antenna Support on Rooftop Without Walls ............................................ 4-74.3.4 Installing Antenna Support onto Rooftop with Wall................................................. 4-9

4.4 Installing Omnidirectional Antenna on Tower Platform.................................................... 4-104.4.1 Structure of Omnidirectional Antenna on Tower Platform..................................... 4-104.4.2 Installation Requirements......................................................................................4-11


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ii

4.4.3 Hoisting Antennas and Other Articles ................................................................... 4-124.4.4 Installation Procedure ........................................................................................... 4-12

4.5 Installing Omnidirectional Antenna on Rooftop ............................................................... 4-144.5.1 Structure of Omnidirectional Antenna on Tower Rooftop ..................................... 4-14

4.5.2 Hoisting Antennas and Other Articles ................................................................... 4-154.5.3 Installation Requirements......................................................................................4-154.5.4 Installation Procedure ........................................................................................... 4-16

4.6 Installing Directional Antenna on Tower Platform............................................................ 4-174.6.1 Structure of Directional Antenna on Tower Platform............................................. 4-174.6.2 Installation Requirements......................................................................................4-174.6.3 Hoisting Antennas and Other Articles ................................................................... 4-184.6.4 Installation Procedure ........................................................................................... 4-19

4.7 Installing Directional Antenna on Rooftop ....................................................................... 4-234.7.1 Structure of Directional Antenna on Rooftop ........................................................ 4-234.7.2 Hoisting Antennas and Other Articles ................................................................... 4-244.7.3 Installation Requirements......................................................................................4-244.7.4 Installation Procedure ........................................................................................... 4-25

4.8 Installing TTA................................................................................................................... 4-264.8.1 Structure of TTA.................................................................................................... 4-264.8.2 Installation Requirements......................................................................................4-274.8.3 Installation Procedure ........................................................................................... 4-284.8.4 Installing Jumpers of TTA .....................................................................................4-29

4.9 Installing Feeder Window ................................................................................................ 4-30

4.9.1 Structure of the Feeder Window ........................................................................... 4-314.9.2 Installation Requirements......................................................................................4-314.9.3 Installation Procedure ........................................................................................... 4-32

4.10 Installing and Grounding Feeders and Jumpers............................................................ 4-334.10.1 Cutting Feeders and Attaching Temporary Labels ............................................. 4-334.10.2 Hoisting and Fixing Feeders ............................................................................... 4-344.10.3 Connecting Jumpers between the Antenna and the Feeder .............................. 4-374.10.4 Connecting the Jumper between TTA and the Feeder....................................... 4-384.10.5 Laying and Fixing Feeders.................................................................................. 4-394.10.6 Grounding Feeders ............................................................................................. 4-44

4.11 Leading Feeders into Equipment Room........................................................................ 4-514.11.1 Feeder Arrangement Principles .......................................................................... 4-514.11.2 Procedure to Lead Feeders into Equipment Room............................................. 4-52

4.12 Installing Jumpers.......................................................................................................... 4-534.12.1 Installation Requirements for Jumpers ............................................................... 4-534.12.2 Installing Jumpers at the Cabinet Top ................................................................ 4-54

4.13 Installing Feeder Lightning Arrester and its Grounding Bar .......................................... 4-544.13.1 Installing Feeder Lightning Arrester.................................................................... 4-544.13.2 Installing Grounding Bar of Lightning Arrester.................................................... 4-55


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iii

4.14 Testing BTS Antenna and Feeder System.................................................................... 4-584.15 Waterproofing Outdoor Connectors............................................................................... 4-584.16 Waterproofing Feeder Window...................................................................................... 4-60

Chapter 5 Checking Installation................................................................................................... 5-15.1 Checking Feeder................................................................................................................ 5-15.2 Checking Grounding Bar ................................................................................................... 5-25.3 Checking the feeder encapsulation window ...................................................................... 5-35.4 Checking Antennas............................................................................................................ 5-35.5 Checking the jumper and TTA........................................................................................... 5-4

Appendix A Requirements for Antenna Spacing.......................................................................A-1A.1 For Omni-directional Antenna ...........................................................................................A-1A.2 For Directional Antennas...................................................................................................A-2

Appendix B Engineering Labels for Antenna and Feeder System...........................................B-1B.1 Engineering Labels for Feeders........................................................................................B-1B.2 Explanation of the Jumper Engineering Label ..................................................................B-3


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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station Table of Figure Description


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)...............................................................1-2Figure 1-2Typical structure of the antenna and feeder system (with dual-polarization antenna

and TTA, installed on the rooftop) ...................................................................................1-3Figure 1-3 Typical structure of the antenna and feeder system (with single-polarization

antenna and TTA, installed on the tower) .......................................................................1-4Figure 2-1Installation procedure of BTS antenna and feeder system ..................................2-2

Figure 3-1Simple protection treatment of a feeder connector ..............................................3-5Figure 3-2Simple waterproof treatment for the connecting point of the feeder .................... 3-5Figure 3-3outline of omnidirectional antenna........................................................................3-6Figure 3-4Fixing clip for omnidirectional antenna (1)............................................................ 3-6Figure 3-5Fixing clip for omnidirectional antenna (2)............................................................ 3-7Figure 3-6Fixing of the omnidirectional antenna................................................................... 3-8Figure 3-7outline of directional antenna................................................................................3-9Figure 3-8Fixing clip for the directional antenna...................................................................3-9Figure 3-9Pitch angle adjuster............................................................................................3-10Figure 3-10Finished connection of jumpers and directional antenna................................. 3-11Figure 4-1Structure of the outdoor grounding bar.................................................................4-1Figure 4-2Installation of the outdoor grounding bar..............................................................4-2Figure 4-3Cutaway section of the outdoor grounding bar.....................................................4-2Figure 4-4Structure of the antenna support on tower platform (unit: mm)............................ 4-3Figure 4-5Installation of the lightning rod.............................................................................. 4-4Figure 4-6Installing the antenna support on the tower platform ...........................................4-5Figure 4-7Structure of the antenna support on the rooftop...................................................4-6Figure 4-8Structure and installation of the antenna support base........................................4-8Figure 4-9Installing the fixing clip of the antenna support onto the wall...............................4-9


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v

Figure 4-10Fixing the antenna support onto the wall (no shorter than 1200mm)................. 4-9Figure 4-11Fixing the antenna support onto the wall (shorter than 1200mm).................... 4-10Figure 4-12Omnidirectional antenna on the tower platform................................................ 4-11

Figure 4-13Installing the omnidirectional antenna on the tower platform...........................4-13Figure 4-14Installing the omnidirectional antenna onto the support on the rooftop............ 4-15Figure 4-15Installing the directional antenna on the tower platform................................... 4-17Figure 4-16Hoisting the directional antenna....................................................................... 4-19Figure 4-17Relationship between the azimuth angle of the directional antenna and the sector

.......................................................................................................................................4-20Figure 4-18Diagram 1 for the directional antenna with the mounting hole corresponding to

the pitch angle...............................................................................................................4-21Figure 4-19Diagram 2 for the directional antenna with the mounting hole corresponding to

the pitch angle...............................................................................................................4-21Figure 4-20Angle display ....................................................................................................4-22Figure 4-21Angle display before adjusting the pitch angle of the antenna......................... 4-22Figure 4-22Angle display after adjusting the pitch angle of the antenna............................ 4-22Figure 4-23Installing the directional antenna on the rooftop (without walls, with TTA)....... 4-23Figure 4-24 Installing directional antenna on the rooftop (with wall no shorter than 1200mm

and TTA)........................................................................................................................4-24Figure 4-25Relationship between the azimuth angle of the directional antenna and the sector

.......................................................................................................................................4-26Figure 4-26Outline of a single TTA .....................................................................................4-27Figure 4-27Steel fastening bracket .....................................................................................4-28Figure 4-28Installing the TTA onto the pole ........................................................................4-28Figure 4-29Jumper between the antenna and TTA ............................................................4-29Figure 4-30Jumper between the TTA and the feeder .........................................................4-29Figure 4-31The jumper between the antenna and the TTA ................................................4-30Figure 4-32Size of the 12-hole feeder window (unit: mm).................................................. 4-31Figure 4-33Structure of the 12-hole feeder window............................................................4-31Figure 4-34Mounting holes of the feeder window (unit: mm) .............................................4-32


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vi

Figure 4-35Installing the feeder window .............................................................................4-33Figure 4-36Protection of the feeder connector (unit: mm)..................................................4-35Figure 4-37Fixing the upper end of the feeder on the tower ..............................................4-36

Figure 4-381-for-1 feeder fixing clips ..................................................................................4-36Figure 4-391-for-3 feeder fixing clips ..................................................................................4-37Figure 4-40The jumper between the antenna and the feeder ............................................4-37Figure 4-41Jumper between the antenna and the feeder................................................... 4-38Figure 4-42The jumper between the TTA and the feeder ...................................................4-39Figure 4-43Fixing the feeders on the tower (using the 1-for-3 fixing clip) ..........................4-40Figure 4-44Fixing the feeders on the tower (using the 1-for-2 fixing clip) ..........................4-40Figure 4-45Laying the feeder from the tower top to the window ........................................4-41Figure 4-46Feeders in the fixing clips .................................................................................4-42Figure 4-47Laying the feeder from the rooftop to the feeder window................................. 4-42Figure 4-48Leading the feeder into the equipment room through the feeder window on the

rooftop ...........................................................................................................................4-43Figure 4-49 Lightning protection grounding of the feeder (for the antenna installed on the

tower) ............................................................................................................................4-45Figure 4-50Lightning protection grounding of the feeder down the cabling ladder ............ 4-46Figure 4-51Installing the feeder grounding clips................................................................. 4-47Figure 4-52Leading direction of the grounding cable of the feeder grounding clip ............ 4-48Figure 4-53Connecting the grounding cable of the feeder grounding clip to the steel plate of

the tower........................................................................................................................4-49Figure 4-54 Grounding before the feeder is led into the equipment room (grounding bar

available) .......................................................................................................................4-50Figure 4-55 Grounding before the feeder is led into the equipment room (grounding bar

unavailable)...................................................................................................................4-50Figure 4-56Layout when the feeders are led into the window............................................4-51Figure 4-57Layout when the feeders are led into the window............................................4-52Figure 4-58Lightning arrester.............................................................................................. 4-54Figure 4-59Installation position of lightning arrester ...........................................................4-55


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vii

Figure 4-60Grounding bar of antenna feeder's lightning arrester....................................... 4-56Figure 4-61Installing grounding bar on the cabling rack..................................................... 4-56Figure 4-62Installing grounding bar on the wall..................................................................4-57

Figure 4-63Grounding lightning arrester.............................................................................4-57Figure 4-64PVC tape and waterproof insulation tape......................................................... 4-58Figure 4-65Wrapping up the feeder with waterproof insulation tape ..................................4-59Figure 4-66The feeder window going through the waterproof treatment............................4-60Figure B-1Outdoor feeder tag (for the transmit end) ............................................................B-2Figure B-2Outdoor feeder tag (for the receive end) .............................................................B-2Figure B-3Indoor feeder label (for the transmit &receive end)............................................B-2Figure B-4Indoor jumper tag (for the transmit &receive end)..............................................B-3


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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station Table of Table Description


viii

Table of Table Description

Table 2-1Installation guide of BTS antenna and feeder system............................................2-3Table 3-1Technical documents for reference ........................................................................3-1Table 3-2Requirements for the two roles ..............................................................................3-2Table 3-3Preparations for different roles ...............................................................................3-2Table 3-4Special tools and instruments for antenna and feeder system installation ............ 3-3Table 4-1Introduction of the TTA ports ................................................................................ 4-27

Table 5-1Check items of the antenna and feeder system.....................................................5-1Table A-1Requirements for omni-directional antenna spacing .............................................A-1Table A-2Requirements for directional antenna spacing ......................................................A-2Table B-1Description of the feeder engineering labels .........................................................B-1Table B-2Description of the jumper engineering labels ........................................................B-3


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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station

Chapter 1Hardware Structure of Antenna and Feeder System


1-1

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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1-2

(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


antenna, without TTA, installed on the rooftop)


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1-3

(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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1-4

(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


antenna and TTA, installed on the tower)


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Chapter 2Installation Procedure of Antenna and Feeder System


2-1

Chapter 2 Installation Procedure of Antenna and

Feeder System

2.1 Installation Procedure of BTS Antenna and FeederSystem

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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2-2

Start

Install outdoor grounding bar

Install antenna support

Install antenna

Install TTA

Install feeder window

Install and ground

feeders and jumpers

TTA configured?

Lead feeders into

equipment room

Pass the test?

Warterproof outdoorconnectors

Find and handle the problem

End

Test antenna and feeder

system

Y

N

Y

N

Warterproof feederwindow

Install jumpers

Install lightning arrester for the

feeders and its grounding bar

Figure 2-1 Installation procedure of BTS antenna and feeder system


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2-3

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

Installingoutdoorgrounding bar

4.1 Installing OutdoorGrounding Bar

Optional. If there is a outdoorgrounding bar up torequirements, it is no needinstalling the outdoor groundingbar.

4.2 Installing AntennaSupport on Tower PlatformInstalling

antenna support 4.3 Installing Antenna

Support on Rooftop

Optional. If there are antennasupports up to requirements, itis no need installing thesupports.

4.4 Installing OmnidirectionalAntenna on Tower Platform

4.5 Installing OmnidirectionalAntenna on Rooftop

4.6 Installing DirectionalAntenna on Tower Platform

Installingantenna

4.7 Installing DirectionalAntenna on Rooftop

Compulsory

Refer to correspondingsections according to theantenna type and installationlocation.

Installing TTA 4.8 Installing TTA Optional. If the TTA isconfigured, it needs to installthe TTA, the jumpers betweenantenna and TTA and thejumpers between feeder andTTA.

Installing feederwindow

4.9 Installing Feeder Window For indoor BTS: Optional. Ifthere is a feeder window up torequirements in equipmentroom, it is no need installingfeeder window.

For outdoor BTS: not needed


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2-4

For Refer to. . . Remark

Installing andgroundingfeeders andjumpers

4.10 Installing andGrounding Feeders andJumpers

Compulsory

Leading feedersinto equipmentroom

4.11 Leading Feeders intoEquipment Room

For indoor BTS: compulsory


Installingjumpers

4.12 installing jumpers Compulsory

Installinglightningarrester for thefeeders and its

grounding bar

4.13 Installing lightningarrester

Compulsory

Testing BTSantenna andfeeder system

4.14 Testing BTS Antennaand Feeder System

Compulsory

Test the VSWR of BTSantenna and feeder system toconfirm the installation qualityof the system.

Encapsulatingoutdoorconnectors

4.15 Waterproofing OutdoorConnectors

Compulsory

Encapsulating

feeder window

4.16 Waterproofing Feeder

Window

For indoor BTS: compulsory



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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station Chapter 3 Installation Preparations


3-1

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 ProjectDesign

Instruct engineeringdesign

Engineering Design and Construction Drawings

Instruct engineeringinstallation

M900/M1800 BTS30 Base Transceiver Station InstallationManual

M900/M1800 BTS312A Base Transceiver StationInstallation Manual


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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3-2

Table 3-2 lists the requirements for the two roles.

Table 3-2 Requirements for the two roles

Role Requirements

ProjectSupervisor

Safety-conscious

Familiar with materials, tools, and methods related to theinstallation 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 ofpersonal safety insurance

Using the safeties correctly

Wearing safety working suites and anti-slippery shoes duringwork

3.4 Preparing Personnel for Installation

Table 3-3 lists preparations for different roles.

Table 3-3 Preparations for different roles

Role Preparations

ProjectSupervisor

Contacting customers on the site to prepare the instrumentsand tools required.

Preparing the keys to the rooms or roof corridor through whichthe feeders run.

All persons onthe site

Wearing safety helmets

Each installation team must prepare a first-aid kit.

Persons underthe tower

Keeping unrelated persons, especially children away from the

installation site.

Taking care of installation parts and instruments to prevent lossor damage.

Persons on thetower

Fastening safety belts.

Carrying the tool kit and some simple bandages such as theWoundplast handy.


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3-3

Caution:

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.

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

Measuringtools

An angle display, A compass

Suspension-mounting tools

An assembly pulley, Two ropes (1 thin and 1thick, both 150mlong), Feeder noose

Tools forfeeders

A feeder nipper, Cable cutter (applicable for the feederspecification), Tools for making feeders (1/2", 7/8"), Blast lamp(to warm and soften the waterproof and sealing materials in coldenvironment)

Protectivetools

Safety belts (for personnel operating out of the tower platform),Protecting caps

Safety ropes, Thick union suits, RF protective clothing

Tools from thelocal 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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3-4

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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3-5

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:

Wrap up the connecting point with waterproof tape, as shown in Figure 3-2.

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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3-6

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:

Antenna fixing clips (shown in Figure 3-4 and Figure 3-5).

Jumper

Figure 3-4 Fixing clip for omnidirectional antenna (1)


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3-7

(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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3-8

(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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3-9

Figure 3-7 outline of directional antenna

The accessories of directional antenna include:

Antenna fixing clip (shown in Figure 3-8)

Pitch angle adjuster (shown in Figure 3-9)

Jumper

Figure 3-8 Fixing clip for the directional antenna


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3-10

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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3-11

Figure 3-10 Finished connection of jumpers and directional antenna


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Installation Manual Antenna Feeder InstallationM900/M1800 BTS3X Series Base Transceiver Station Chapter 4 Installing Antenna and Feeder System


4-1

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.

Install the outdoor grounding bar on the wall with the same height of the cabling

rack and close to the BTS cabinet.

Install the outdoor grounding bar horizontally.

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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4-2

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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4-3

4.2.1 Structure of Antenna Support on Tower PlatformThere 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)


Observe the following requirements when installing the antenna support on the tower

platform:

The installation plane of the antenna support is perpendicular to the level plane.

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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4-4

(1) Lightning rod (2) Antenna (3) Mast for the lightning rod

Figure 4-5 Installation of the lightning rod

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.

If necessary, stay the antenna support to avoid deformation.

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.

Eliminate the existence of dry and open welds. Select the support made ofgalvanized steel. Coat the support with the antirust aluminum paint.


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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4-5

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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4-6

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 RooftopThere 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


Observe the following requirements when installing the antenna support on the

rooftop:

Install the connecting pieces for the stiffener where they do not impede

adjustment of the antenna orientation and pitch angle.


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4-7

The antenna support is perpendicular to the level plane.

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.

For the installation of the omnidirectional antenna on the rooftop, install thelightning rod on a separate support instead of the antenna support.

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.

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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4-8

(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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4-9

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) 180connecting 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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4-10

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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4-11

(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


Observe the following requirements when installing omnidirectional antennas onto the

tower platform:

Make sure that all antennas are in the protection coverage of the lightning rod

and at least 2 m away from the tower body.

The antenna axis is perpendicular to the level plane with a permissible error of

less than 1o.

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.

Make waterproof curves for the antenna jumper.


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4-12

4.4.3 Hoisting Antennas and Other Articles

Caution:

Make sure that no person stands right below the hoisted object.

The personnel working outside the tower platform must wear safety belts and

harnesses.

Pack the small metal articles such as fixing pieces and spanners in a tool bag and

then hoist the bag.

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.


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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4-13

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 step2).

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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4-14

Note:

Bend the jumpers in a natural manner. The bending radius is 20 times longer than

the jumper diameter.

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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4-15

(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.


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:

Keep the antenna away from barriers such as high-rise buildings to avoid blind

areas.

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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4-16

make sure that the antenna is in the lightning protection coverage, the tilt angle

30of the lightning rod.

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.


Caution:

Bend the jumpers in a natural manner. The bending radius is 20 times longer than

the jumper diameter.

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 thejumper 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 towe