31040851-bts3012a installation manual-antenna feeder install

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


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



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]


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.


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


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


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


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


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



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



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

Installation Manual Antenna Feeder Installation M900/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)............................................................... 1-2

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



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



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



vii

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

Installation Manual Antenna Feeder Installation M900/M1800 BTS3X Series Base Transceiver Station Table of Table Description


viii

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

Installation Manual Antenna Feeder Installation M900/M1800 BTS3X Series Base Transceiver Station

Chapter 1 Hardware Structure of Antenna and Feeder System


1-1


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.




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

Figure 1-1 Typical structure of the antenna and feeder system (with single-polarization antenna, without TTA, installed on the rooftop)




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)




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

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


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 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




2-2

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




2-4

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


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


Installation Manual Antenna Feeder Installation M900/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 Project Design

Instruct engineering design

Engineering Design and Construction Drawings

Instruct engineering installation

M900/M1800 BTS30 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.



3-2

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.



3-3

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.



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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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)



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.



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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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



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.



3-11

Figure 3-10 Finished connection of jumpers and directional antenna

Installation Manual Antenna Feeder Installation M900/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.

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.



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.



4-3

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)


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.



4-4

(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.


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.



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.



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 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


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.



4-7

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.



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.



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) 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)



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.



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:

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.



4-12

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.


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.



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 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.



4-14

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.



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


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:

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,



4-16

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.


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.



4-17

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


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.



4-18


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.



4-19

Figure 4-16 Hoisting the directional antenna


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.



4-20

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.



4-21

Get the mounting hole

number accordi

31040851-bts3012a installation manual-antenna feeder install

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