Hongxin GZF9003-V User manual

HX/SM/GZF9183-V/RB.0
GZF9183-V
GSM Frequency Shifting Repeater
User’s Manual
September 2004
Version 00.00.01

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Wuhan Research Institute of Posts and Telecommunications
Wuhan Hongxin Telecommunication Technologies Co., Ltd.
September 2004
Copyright © 2004 Hongxin Telecommunication Technologies Co., Ltd
Wuhan P. R. China
All rights reserved.
No part of this documentation may be excerpted, reproduced, translated,
annotated or duplicated, in any form or by any means without the prior written
permission of WRI Hongxin Telecommunication Technologies Co., Ltd
Fiberhome Group.Hongxin Co.
88 Youkeyuan Rd.HongshanDist.Wuhan,P.R.China
Website: http://www.wri.com.cn http://www.hxct.com
Post Code: 430074
Customer Support Center: ([phone])
Fax: [phone])
E-mail:[email protected]

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Preface
GZF9183-V Frequency Shifting Repeater of GSM Mobile Communication is an important
part for constructing a hybrid GSM mobile communication network. It mainly serves to
receive and amplify uplink and downlink radio frequency (RF) signals so as to extend the
coverage of BTS.
This Technical Manual deals with the principles, functions, structure, installation,
debugging, operation, maintenance, and transport etc of the GZF9183-V Frequency
Shifting Repeater and is intended to guide users to properly install, operate and maintain
the GZF9183-V Frequency Shifting Repeater.
Statement: The actual product may differ from what is described in this manual
due to frequent update of WRI Hongxin products and fast development of
technologies in the future. Please contact the local WRI Hongxin office for the
latest updating information of the product.
Notice:
1 Based on users’ need, the actual working frequency of WRI repeater is
to be customized. In this manual, we provide the repeater with
frequency 935-960MHz for downlink and 890-915MHz for uplink.
2 Based on users’ need, the power supply AC input voltage value
provided by WRI is to be customized, either. In this manual, we provide
repeater with 220V/50Hz AC or 48V DC power supply; in fact,
110V/60Hz AC power supply is also optional.
3 Based on the users’ need, the output power of both downlink and
uplink is to be customized, and the output power range is from 0.5W to
10W for uplink and from 2W to 40W for downlink.
4 Based on user’s need, the way for band selecting is to be customized,
broadband, band selecting or channel selecting is optional. In this
manual, we provide repeater with channel selecting.
5 About GZF9183-V, here “900” stands for working frequency, “3” stands
for country code named by Hongxin, and “V” stands for repeater type.

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CONTENT
1. SYSTEM OVERVIEW..........................................1
1.1 Overview.............................................................................................1
1.2 Scope of Application of the Equipment...................................3
1.3 Major Features of the Equipment...............................................3
1.4 Basic Principle..................................................................................4
2. WORKING PRINCIPLE & TECHNICAL
INDICES.................................................................................6
2.1 Working Principle............................................................................6
2.2 Product Features.............................................................................7
2.3 Technical Indices...........................................................................10
2.3.1 Major Technical Indexes........................................................................................................10
2.3.2 Ambient Environment Condition............................................................................................10
2.3.3 Power Supply Requirements.................................................................................................10
2.3.4 Mechanical Characteristics ................................................................................................... 11
2.3.5 Interfaces .............................................................................................................................. 11
3. SYSTEM COMPOSITION..............................12
3.1 RF Unit...............................................................................................12
3.1.1 Duplexer................................................................................................................................12
3.1.2 PA .........................................................................................................................................13
3.1.3 RFF1/2``-50 Cable ................................................................................................................14
3.2 M&C....................................................................................................15
3.3 Power Supply Unit.........................................................................16

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3.4 Accessories.....................................................................................17
3.4.1 Outdoor Omni Directional Antenna........................................................................................17
3.4.2 Directional Panel Antenna.....................................................................................................18
3.4.3 Yagi Antenna .........................................................................................................................19
3.4.4 Short Backfire Antenna .........................................................................................................20
3.4.5 Arrestor .................................................................................................................................21
3.4.6 1/2 Inch Super Suppleness Cable.........................................................................................22
4. EQUIPMENT TEST & DEBUGGING....23
4.1. Test Condition, Instruments, Meters & Relevant
Accessories............................................................................................23
4.1.1 Test Condition .......................................................................................................................23
4.1.2 Instruments, Meters & Relevant Accessories........................................................................23
4.2. Testing Frequency Band(To be customized)......................23
4.3. Testing Method & Procedure....................................................23
4.3.1 Maximum Output Power........................................................................................................23
4.3.2 Maximum Gain ......................................................................................................................24
4.3.3 Auto Level Control (ALC) ......................................................................................................24
4.3.4 Gain Adjustment Range ........................................................................................................25
4.3.5 Gain Adjustment Step Length & Error ...................................................................................25
4.3.6 Ripple In Band ......................................................................................................................26
4.3.7 Voltage Standing-Wave Ratio................................................................................................26
4.3.8 Spurious Emission.................................................................................................................27
4.3.9 Uplink SNR ...........................................................................................................................27
4.3.10 Group Time Delay ...............................................................................................................28
4.3.11 Noise Figure ........................................................................................................................29
5. CONSTRUCTION PROCESS.....................30
5.1 Construction Flow.........................................................................30
5.1.1 Reconnaissance of Works ....................................................................................................31
5.1.2 Engineering Design...............................................................................................................32
5.1.3 Organization of Construction.................................................................................................33
5.1.4 Opening & Self-Examination of the Construction ..................................................................36
5.1.5 Organization for Construction, Inspection & Acceptance ......................................................37
5.2 System Installation........................................................................39

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5.2.1 Installation Flow ....................................................................................................................40
5.2.2 User’s Cooperation ...............................................................................................................40
5.2.3 On-site Survey ......................................................................................................................41
5.2.4 Installation Tools....................................................................................................................41
5.2.5 Technical Documentation ......................................................................................................41
5.3 Installation Conditions.................................................................41
5.3.1 Basic Installation Conditions .................................................................................................41
5.3.2 Recommended Environment Requirements..........................................................................42
5.4 Equipment Check..........................................................................42
5.4.1 Counting the Goods ..............................................................................................................42
5.4.2 Unpacking Inspection............................................................................................................43
5.5 Installation of the Main Chassis of the GZF9183-V
Repeater...................................................................................................43
5.6 Antenna Feeder Installation.......................................................50
5.6.1 Laying Cables .......................................................................................................................50
5.6.2 Installation of the Service Antenna & Feeder ........................................................................53
5.6.3 Making Joint..........................................................................................................................53
5.6.4 Precautions for Antenna Feeder Installation .........................................................................54
5.7 Grounding & Power Supply Connection...............................55
5.7.1 Equipment Grounding ...........................................................................................................55
5.7.2 Power Supply Connection.....................................................................................................58
5.8 Installation of Embracing Pole & Antenna Bracket (for
tower)........................................................................................................59
6. SITE OPENING & DEBUGGING.............62
6.1 Tools for Opening..........................................................................62
6.2 Details for Opening.......................................................................63
6.2.1 Check on Process .................................................................................................................63
6.2.2 Implementation of Equipment Test ........................................................................................64
6.2.3 Implementation of System Test .............................................................................................66
6.2.4 Implementation of Network optimization ...............................................................................67
6.2.5 Collection of Opening Data ...................................................................................................69

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7. SYSTEM MAINTENANCE.............................71
8. PRECAUTIONS......................................................72
9. TRANSPORTATION & STORAGE........73
9.1 Transportation ................................................................................73
9.2 Storage..............................................................................................73
10. APPENDIX TERMS &
ABBREVIATIONS.......................................................74

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1. System Overview
1.1 Overview
In GSM mobile communication system, limited by the coverage of base
station or by geographic environment, the transmission of signals may
be influenced by shadow or semi-shadow in some areas, generally
referred to as dead zone or semi-dead zone, bringing serious impact on
voice quality or even causing failure to normal communication. To solve
this problem, apart from adding more base stations, the deployment of
mobile communication repeater, characterized by quick expansion of
coverage and reduction of cost, shall be an ideal cost-effective choice of
high efficiency.
Frequency Shifting Repeater of mobile communications is an
important tool to expand network coverage, reduce network cost and
realize network optimization. Frequency Shifting Repeater of GSM
mobile communications is meant to amplify communication signal,
extend network coverage, to improve communication quality by
amplifying some weak received signals and expanding the signal
coverage and to distribute traffic load in various base stations with
efficiency. In the course of network optimization, Frequency Shifting
Repeater of GSM mobile communications offers a wide variety of
application. In some areas, such as satellite cities of some large cities,
remote residential areas, countries and towns or other dead zones or
shadow areas formed due to the natural or human obstacles (such as
high mountains, large buildings, tunnels or underground stores),
Frequency Shifting Repeater of GSM mobile communications shall be
the most economical and reasonable solution to the effective coverage

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of these networks since these areas are demanding a greater coverage
rather than capacity. Frequency Shifting Repeater of GSM mobile
communications is cheap with easy installation. It will greatly reduce the
investment in equipments and running cost to expand the network by
Frequency Shifting Repeater.
GZF9183-V Frequency Shifting Repeater provides operators with
multiple solutions that can save the investment in equipments and
running maintenance cost without lowering the network quality. As a
supplement to GSM base stations, in the areas with some dead zones,
the coverage of GSM network can be easily expanded to the dead
zones that need covering to solve the problem of coverage.
By using GZF9183-V Frequency Shifting Repeater of mobile
communications of excellent performances manufactured by Wuhan
Hongxin Telecommunication Technologies Co., Ltd, the
surplus capacity of networks can be re-planned or re-arranged so that
the resources of networks will be used to their maximum. The
application of GZF9183-V repeater shall attract more traffic load with its
short cycles, immediate returned profits, easy installation and savings of
network resources and expand the network coverage with low cost to
make up for the insufficient coverage of system base station. It is a good
solution to optimize network with Frequency Shifting Repeater in
networks.
In some areas with tough conditions, Frequency Shifting Repeater
of mobile communications is characterized by its strong adaptability,
quick construction and high sound quality. It can cover the entire
coverage area. GZF9183-V Frequency Shifting Repeater of mobile
communications can solve the problem remote areas, highways,
railways and airport. In the areas where the frequency of the base

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station is not used, the extra communication capacity can be transmitted
to other areas so that equipment shall be fully used.
1.2 Scope of Application of the Equipment
Applicable to airport, stations, mountain area, railway lines, holiday
village, tourist areas, large-scale industry and mining enterprises,
remote residential areas, countryside and dead zones and shadow
areas of mobile communication. Especially it is important for the area
where the wireless signal environment is very complex and putting the
optical fiber is very difficult.
1.3 Major Features of the Equipment
1. Use filter with high selectivity and low insertion-loss and
multi-grade filter technology to enhance the isolation between
uplink and downlink.
2. No interference to the base station and other radio equipments
with low noise for the system, proper linearity and high power.
3. Ensure normal working of the repeater under tough environment
with automatic level control (ALC) function.
4. Unique wireless digital transmission and remote monitoring
system with various ways of monitoring and convenience for
network maintenance.
5. Modularized design facilitates assembly and maintenance.
6. Equipped with perfect network management system and friendly
operation interface as well highly reliable operation and failure
treatment capability.
7. When monitoring center has not been established, technicians can