Winhap Communications KRC118102 AF14 User Manual
Rev PA1
CDMA1900 Dual Band Selective Repeater
0.5W
User Manual
Rev PA1
CDMA1900 Dual Band Selective Repeater
0.5W
User Manual
© Ericsson AB 2009
All rights reserved. The information in this document is the
property of Ericsson. Except as specifically authorized in writing
by Ericsson, the receiver of this document shall keep the
information contained herein confidential and shall protect the
same in whole or in part from disclosure and dissemination to
third parties. Disclosure and disseminations to the receiver's
employees shall only be made on a strict need to know basis. The
information in this document is subject to change without notice
and Ericsson assumes no responsibility for factual inaccuracies or
typographical errors.
Contents
1 Preface......................................................................................................1
2 System Summary .................................................................................... 2
2.1 Overview....................................................................................................2
2.2 Brief Introduction ....................................................................................... 2
2.3 Basic Working Principle.............................................................................2
2.4 Product Features....................................................................................... 3
2.5 Case Variants............................................................................................ 3
2.6 Interface.....................................................................................................4
3 System Structure.....................................................................................5
3.1 System Constitution...................................................................................5
3.2 DL/UL LNA ................................................................................................ 5
3.3 DL/UL Band Selective Unit........................................................................5
3.4 DL/UL PA...................................................................................................5
3.5 Coupler for Modem....................................................................................5
3.6 Modem.......................................................................................................5
3.7 Control Unit................................................................................................6
3.8 Duplexer....................................................................................................6
3.9 Power Supply ............................................................................................ 6
4 Instruction for antenna selection...........................................................7
4.1 Applicable MPE Limits...............................................................................8
4.2 FCC Formulas and Calculations................................................................8
4.3 Selection for Service Antennas ................................................................. 9
5 System Commissioning........................................................................11
5.1 Testing Tools and Instruments................................................................11
5.2 VSWR Test of Antenna and Feeder System...........................................11
5.3 Voltage Test of Power Supply System....................................................11
5.4 Parameter Test........................................................................................11
5.5 Remote Control Test ............................................................................... 12
CDMA1900 Dual Band Selective Repeater 0.5W
1 Preface
Manual Instruction
CDMA1900 Dual Band Selective Repeater 0.5W is an important part of the CDMA
network system. It mainly receives processes and amplifies RF signal to extend the
BTS coverage area.
This manual introduces the working principle, function, structure and commissioning
of the Dual Band Selective Repeater.
Content Introduction
This user manual mainly introduces four chapters including working principle,
function, structure, commission.
Chapter 2: System brief introduction mainly introduces the basic working principle,
product characteristics and interfaces etc...
Chapter 3: System structure introduces the use of every unit in the Band selective
repeater such as main modules, monitoring units and PA units… which will make
the user have a good knowledge of the Band selective repeater structure.
Chapter 4: System instruction for antenna selection, The equipment does meet the
exemption requirements in respect of RF Exposure… Applicable MPE Limits, FCC
Formulas and Calculations, Selection for Service Antennas.
Chapter 5: System commissioning mainly introduces the general testing procedures
of the system, testing tool, apparatus, system testing content, testing methods that
will help user to run the Band selective repeater in the optimal condition.
Annex A is Outlet Configuration.
NOTE：
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to
correct the interference at his/her own expense.
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CDMA1900 Dual Band Selective Repeater 0.5W
2 System Summary
2.1 Overview
This chapter gives a brief introduction of the Dual Band Selective Repeater,
including the application, basic working principle, product characteristics and main
technical indexes. In this way, user can have a rough idea about the repeater.
2.2 Brief Introduction
Repeater is the equipment for the wireless network optimization that can enlarge the
BTS coverage area. It is widely used in the blind area, high traffic load area and the
pilot pollution area etc…
2.3 Basic Working Principle
The repeater receives the downlink (DL) signal from BTS via the donor antenna, the
signal will be filtered by duplexer and amplified by low noise amplifier (LNA), and
then DL band selective unit will select operation band, and finally it will be amplified
by DL power amplifier (PA) unit and filtered by duplexer, sent via the service
antenna to the coverage area. There is a dual SAW filter in the DL band selective
unit, and it makes the band selectivity of the repeater viable.
The service antenna receives the uplink (UL) signal from mobile terminal; the signal
will be filtered by duplexer, amplified by the UL low noise amplifier (LNA) and filtered
by the UL band selective unit, and then amplified by the UL PA unit and filtered by
UL duplexer, sent via the donor antenna to the BTS. Certainly there is a dual SAW
filter in the UL band selective unit.
The main control unit will control the modules. User can inquire and modify the
parameters by LOC (local) interface, and we also can do it in the NMS (Net
Management System) by ways of SMS or data fax.
The PS (Power Supply) unit supplies power to all the active units.
Please refer to the following fig 2-1
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CDMA1900 Dual Band Selective Repeater 0.5W
Fig. 2-1 Configuration of CDMA1900 Dual Band Selective Repeater.
2.4 Product Features
• Good performance & good technical parameters.
• Modular structure, high reliable and easy to upgrade and maintain.
• With spontaneous heat dissipation.
• Local and remote monitoring function which access to the NMS.
• With a perfect protection function.
• Dual band for work, Sub-band 3.75MHz&13.75MHz.
2.5 Case Variants
425mm*372mm*160mm
12Kg
Fig.2-2 Outlook of CDMA1900 Dual Band Selective Repeater
Rev PA1 2010-1-12
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© Ericsson AB 20089
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