PX8RD-2020RD2020 AWS Bandwidth Adjustable Repeater

INSTALLATION GUIDE FOR RD-2020 RD-2020 CDMA QI Copyright - refer to title page Page 1 ENU Status : 1-0-0 RD-2020 CDMA AWS BANDWIDTH ADJUSTABLE REPEATER INSTALLATION GUIDE The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed in the first instance: Comba Telecom Ltd. This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba and is supplied without liability for errors or omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. INSTALLATION GUIDE FOR RD-2020 RD-2020 CDMA QI Copyright - refer to title page Page 2 ENU Status : 1-0-0 0.2 CONTENTS Section Page 0.2 CONTENTS ...........................................................................................................................2 0.3 INDEX TO FIGURES AND TABLES .....................................................................................3 0.4 HISTORY ...............................................................................................................................4 0.5 GLOSSARY OF TERMS........................................................................................................5 0.6 SAFETY NOTICES AND ADMONISHMENTS ......................................................................6 1 GENERAL INFORMATION....................................................................................................7 2 EQUIPMENT DESCRIPTION ................................................................................................8 2.1 RD-2020 FUNCTIONAL BLOCK DIAGRAM .........................................................................8 2.2 EQUIPMENT LAYOUT ..........................................................................................................9 2.3 EQUIPMENT CONSTITUTION ...........................................................................................10 2.4 KITS OF PART.....................................................................................................................11 3 INSTALLATION ...................................................................................................................12 3.1 WARNINGS AND ALERTS..................................................................................................12 3.2 SITE PLANNING CONSIDERATIONS ................................................................................13 3.2.1 INSTALLATION CHECKLIST ..............................................................................................14 3.3 INSTALLATION PROCEDURES .........................................................................................15 3.3.1 GOODS INWARDS INSPECTION ......................................................................................15 3.3.2 INSTALLATION TOOLS ......................................................................................................15 3.3.3 MOUNTING RACK..............................................................................................................15 3.3.4 LIFTING LUG INSTALLATION ............................................................................................16 3.3.5 WALL MOUNTING DETAILS ..............................................................................................16 3.3.6 POLE MOUNTING DETAILS...............................................................................................17 3.3.7 ATTACHING EQUIPMENT ONTO MOUNTING RACK......................................................18 3.3.8 DRIP-LOOP .........................................................................................................................18 3.4 EQUIPMENT CONNECTORS .............................................................................................19 3.5 EQUIPMENT CONNECTIONS ............................................................................................19 3.5.1 GROUNDING CONNECTION .............................................................................................19 3.5.2 SERVICE VOLTAGE CONNECTION..................................................................................20 3.5.3 LI-ION BATTERY CONNECTION .......................................................................................20 3.5.4 RF CABLE CONNECTION ..................................................................................................20 3.5.5 EXT_ALM CONNECTION ...................................................................................................21 3.5.6 RJ45 WATERPROOF CABLE CONNECTION ...................................................................21 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING MODEM ...............23 4 COMMISSIONING ...............................................................................................................24 4.1 PRE-COMMISSIONING......................................................................................................24 4.2 MCU LED INDICATORS......................................................................................................24 4.3 WEB OMT ............................................................................................................................25 4.3.1 CONNECTION FROM PC TO EQUIPMENT ......................................................................25 4.4 COMMISSIONING PROCEDURE .......................................................................................28 5 MAINTENANCE ...................................................................................................................30 5.1 O-RING FITTING DETAILS ..........................................................................................…

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DT MT LNA LNA -2 dB -2 dB -52 dBm 17dB 25 dBm 45 dB 40 dBm -67 dBm -50dBm 23 dBm -2 dB -2 dB DL Gain 90 dB DPA UL FS Module DL FS Module 27dB -10dBm 42 dBm -20 dBm UPA 35 dB 32dB -69dBm -3 dBm VSWR RD-2020(20W) System Gain Allocation UL Gain 90 dB 32dB 1710MHz~1755MHz 1710MHz~1755MHz 1570MHz~1615MHz1850MHz~1895MHz -37 dBm 2110MHz~2155MHz 2110MHz~2155MHz 1970MHz~2015MHz 2250MHz~2295MHz Oscillator Frequency 15.36MHz Oscillator Frequency 15.36MHz Oscillator Frequency 15.36MHz Oscillator Frequency 15.36MHz

Comba Telecom Limited Comba Telecom Ltd.___ is requesting that the exhibit of “internal photo” under file name of PX8RD-2020 Internal phtoos.pdf of FCC ID: PX8RD-2020 be granted permanent confidentiality pursuant to 47 CFR 0.457(d) of the FCC Rules. The aforementioned internal photo contains trade secret (The particular and special design of internal layout of the duplexer is easy to duplicate by visual and photo exposed to public might jeopardize the intellectual property safety of Comba) that should be withheld from public inspection. The device is a non-consumer device and is inaccessible to the general public because it is mounted in external and internal sealed enclosures. The external enclosure is open with Comba-made screwdriver, and internal enclosure is secured by over 100 screws, which is only serviceable by the licensee or designated technicians authorized by the grantee. Signature: Name: John Cheng Title: Marketing Manager Date: 2010-12-01

Comba Telecom Limited 611 East Wing, No.8 Science Park West Avenue, Hong Kong Science Park, Tai Po, Hong Kong Tel: +852 2636 6861 Fax: +852 2116 6055 www.comba-telecom.com Declaration In order to achieve the RD-2020 confidentiality from FCC, Comba, who has applied for and acquired the RD-2020 repeater FCC certificate, agrees that purchaser of the equipment will sign an agreement (sample as on next page). Purpose of the agreement is to guarantee the device will be installed so that it is inaccessible to the public and will only be serviced by the licensee or a designated technician. Signature: Name: John Cheng Title: Marketing Manager Date: 2010-11-08 Comba Telecom Limited 611 East Wing, No.8 Science Park West Avenue, Hong Kong Science Park, Tai Po, Hong Kong Tel: +852 2636 6861 Fax: +852 2116 6055 www.comba-telecom.com (The below is a sample for Agreement) Agreement This agreement is made between the equipment seller Comba Telecom Limited (so called seller hereafter) and (so called buyer hereafter). By signing this agreement, the buyer agrees that the device will be installed so that it is inaccessible to the public and will only be serviced by the licensee or a designated technician. Comba Telecom Limited Signature: Name: John Cheng Title: Marketing Manager Date: Buyer: Signature: Name: Title: Date:

External Photos

Label and location

RD2020 Operation Description The RD-2020 CDMA AWS bandwidth adjustable repeater is designed for operation in the CDMA network for AWS band. Band specific linear amplifier and filtering effectively amplifies the desired Node B carrier and provides superior out-of-band rejection. Typical units with adjustable bandwidth are programmed to specific requirements of the network. The RD-2020 comes in a sealed well-ventilated cast aluminum enclosure, suitable for all weather conditions.. In the downlink, the BTS signals are received by donor antenna of the equipment. After the duplexer, the signals are sent to the LNA module for pre-amplification, followed by band selection using the Frequency Selection (FS) modules. The power amplifiers (PA) can amplify all carriers within the passband to the maximum output power permitted. The duplexer permits combining with the uplink signals to share a single service antenna. In the uplink, the mobile signals are received by the service antenna. After the duplexer, the signals are sent to the LNA, FS and PA modules before duplexing with the downlink signals. The uplink signals are sent to the donor antenna for transmission back to the BTS. A schematic diagram and a description of all circuitry and devices provided for determining and stabilizing frequency, for suppression of spurious radiation, for limiting modulation, and for limiting power. The repeater’s downlink modulation method is QPSK and uplink is BPSK.

Name:DT Duplexer Version:A ERPDescription 200309-000410-00DU-K9045-S01, duplexer 200306-001306-00R-312LNA-3001, LNA board 102004-000018-0052-970-104-HA0, pin 102201-000016-00GB/T823,M2×4, bolt 102201-000045-00GB/T823,M3×6, bolt 100501-000058-00SMA-KFD5B, connector 102006-000016-00JYS-5103, socket 101301-000003-000603-0Ω, SMT resistor 101302-000005-000805-0Ω, SMT resistor 101301-000002-000603-1kΩ, SMT resistor 101301-000024-000603-1.2kΩ, SMT resistor 101301-000030-000603-2kΩ, SMT resistor 101301-000042-000603-3kΩ, SMT resistor 101301-000012-000603-6.8kΩ, SMT resistor 101301-000022-000603-10Ω, SMT resistor 101301-000018-000603-10kΩ, SMT resistor 101301-000027-000603-12kΩ, SMT resistor 101301-000050-000603-22kΩ, SMT resistor 101302-000017-000805-120Ω, SMT resistor 101302-000020-000805-150Ω, SMT resistor 101301-000001-000603-430Ω, SMT resistor 101401-000001-000603-0.01μF, SMT capacitor 101401-000002-000603-0.1μF, SMT capacitor 101401-000028-000603-1μF, SMT capacitor 101401-000011-000603-68pF, SMT capacitor 101401-000007-000603-100pF, SMT capacitor 101401-000020-000603-1000pF, SMT capacitor 101502-000023-00 5.6nH(FHW0805UC5N6JGT), SMT inductor 101502-000020-000805-8.2nH, SMT inductor 101503-000137-000603-13nH, SMT inductor 101502-000045-000805-27nH, SMT inductor 101608-000129-00SBB-4089Z, amplifying tube 101501-000064-00PB201209C700Y1A5T, SMT bead 101608-000089-00HMC375LP3ETR, LNA tube 101604-000007-00 LM293DR2G, SMT dual comparator IC 101602-000020-00MMBT3904_NL, audion 101408-000015-002.2μF/35V, tyep B, SMT capacitor 101711-001023-00R-312LNA-5001PC PCB 101301-000036-000603-200Ω, SMT resistor 101606-000027-00NJM78L05UA, SMT regulator IC BOM Name:MT Duplexer Version:A ERPDescription 200309-000411-00DU-K9045-S02, duplexer 200306-001405-0000-3122TS-3001, detecting board 102003-000069-002.54mm,1136R-04 socket 200306-001306-00R-312LNA-3001, LNA board 102004-000018-0052-970-104-HA0, pin 100501-000058-00SMA-KFD5B, connector 102201-000016-00GB/T823,M2×4, bolt 102006-000016-00JYS-5103, connector socket 102201-000045-00GB/T823,M3×6, bolt 102201-000018-00GB/T823,M2×6, bolt 101301-000003-000603-0Ω, SMT resistor 101301-000004-000603-51Ω, SMT resistor 101301-000052-000603-68Ω, SMT resistor 101301-000035-000603-270Ω, SMT resistor 101301-000002-000603-1kΩ, SMT resistor 101301-000013-000603-9.1kΩ, SMT resistor 101399-000049-00 RC-03K1005FT(0603-10M), resistor 101302-000005-000805-0Ω, SMT resistor 101401-000011-000603-68pF, SMT capacitor 101401-000007-000603-100pF, SMT capacitor 101401-000001-000603-0.01μF, SMT capacitor 101401-000002-000603-0.1μF, SMT capacitor 101408-000002-0010μF/25V, tpye C, SMT capacitor 101501-000064-00 PB201209C700Y1A5T, SMT bead 101606-000027-00NJM78L05UA, SMT regulator IC 101606-000001-00AD8312ACBZ, detecting tube 101604-000010-00 LM258DG2R, dual operational amplifier IC 101601-000045-00RLZTE-115.1B, diode 101603-000006-003224W-1-204E, potentiometer 102003-000069-002.54mm,1136R-04 socket 101726-000085-0000-3122TS-5001PC,FR4, PCB 101301-000003-000603-0Ω, SMT resistor 101302-000005-000805-0Ω, SMT resistor 101301-000002-000603-1kΩ, SMT resistor 101301-000024-000603-1.2kΩ, SMT resistor 101301-000030-000603-2kΩ, SMT resistor 101301-000042-000603-3kΩ, SMT resistor 101301-000012-000603-6.8kΩ, SMT resistor 101301-000022-000603-10Ω, SMT resistor 101301-000018-000603-10kΩ, SMT resistor 101301-000027-000603-12kΩ, SMT resistor BOM 101301-000050-000603-22kΩ, SMT resistor 101302-000017-000805-120Ω, SMT resistor 101302-000020-000805-150Ω, SMT resistor 101301-000001-000603-430Ω, SMT resistor 101401-000001-000603-0.01μF, SMT capacitor 101401-000002-000603-0.1μF, SMT capacitor 101401-000028-000603-1μF, SMT capacitor 101401-000011-000603-68pF, SMT capacitor 101401-000007-000603-100pF, SMT capacitor 101401-000020-000603-1000pF, SMT capacitor 101502-000023-00 5.6nH(FHW0805UC5N6JGT), SMT inductor 101502-000020-000805-8.2nH, SMT inductor 101503-000137-000603-13nH, SMT inductor 101502-000045-000805-27nH, SMT inductor 101608-000129-00SBB-4089Z, amplifying tube 101501-000064-00 PB201209C700Y1A5T, SMT bead 101608-000089-00HMC375LP3ETR, LNA tube 101604-000007-00 LM293DR2G, SMT dual comparator IC 101602-000020-00MMBT3904_NL, audion 101408-000015-002.2μF/35V, type B, SMT capacitor 101711-001023-00R-312LNA-5001PC PCB 101301-000036-000603-200Ω, SMT resistor 101606-000027-00NJM78L05UA, regulator IC Name:PA-4145F102 ERP:200801-000300-00 Version:D ERPDescription 100501-000023-00SMA-KFD5, cable connector 100604-000216-00670-047, cable 101002-001003-00111-211-217-BVUT20, isolator 201201-000055-0000-4145F2-3801MX, PA box 101003-000027-00RIG2-4E2-10W-50Ω±5%, resistor 101411-000001-00CT52-2-63V-332Z, capacitor 101606-000083-00IRF4905PBF, PSU switch tube 101606-000014-00L7809, regulator IC 101604-000020-00TMP36GT9Z, temperature sensor 102210-000038-00TO-3P, sheet mica 200306-001469-0000-4145F12-3004, control rack 200306-001223-0000-F16CAI-3002, PA board 200306-001429-0000-4145F12-3003, PA board 200306-001428-0000-4145F12-3002, PA board 200306-001427-0000-4145F12-3001, PA board 102201-000017-00GB/T823,M2×5, bolt 102201-000100-00GB/T823,M2×12, bolt 102201-000097-00GB/T823,M2×16, bolt 102201-000001-00GB/T823,M2.5×6, bolt 102201-000020-00GB/T823,M2.5×10, bolt 102201-000022-00GB/T823,M2.5×14, bolt 102201-000099-00GB/T823,M2.5×16, bolt 102201-000045-00GB/T823,M3×6, bolt 102202-000004-00GB/T819.1,M2×5, bolt 102210-000004-004-40UNC(长7mm), bolt 102206-000004-00GB/T93,2.5, spring washer 102206-000005-00GB/T93,3, spring washer 102201-000016-00GB/T823,M2×4, bolt 102201-000025-00GB/T823,M2.5×5, bolt 102201-000021-00GB/T823,M2.5×12, bolt 102201-000160-00M3×18, bolt 200306-002534-00 00-4145F12-3005, distribution board 102205-000049-00GB/T848,2.5, flat washer BOM Name:00-4145F12-3005, distribution board ERP:200306-002534-00 Version:A ERPDescription 101301-000022-000603-10Ω, SMT resistor 101301-000047-000603-4.7kΩ, SMT resistor 101301-000018-000603-10kΩ, SMT resistor 101301-000025-000603-20kΩ, SMT resistor 101302-000025-000805-1kΩ, SMT resi…

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Issued by SPGZ Date 19-09-10 Checked by SPGZ Document Id WE-TN-10019-R1A Title RD-2020 Tune Up Procedures Project No WE-TN-10019 Revision R1A Page 1 / 11 All rights reserved and property of Comba RD-2020 Tune Up Procedures Index 1 Introduction ............................................................................................................................. 2 2 Preparation ............................................................................................................................. 2 2.1 Personnel Preparation...................................................................................................... 2 2.2 Indicators and Power Up .................................................................................................. 3 2.1.1 PSU LED................................................................................................................... 3 2.1.2 Module LED .............................................................................................................. 3 2.1.3 MCU LED.................................................................................................................. 4 2.3 OMT Connection .............................................................................................................. 6 2.4 Power Output Adjustment ................................................................................................ 9 Revision History Revision Date Author Remarks R1A 190910 SPGZ Checked by SPGZ. Issued by SPGZ Date 19-09-10 Checked by SPGZ Document Id WE-TN-10019-R1A Title RD-2020 Tune Up Procedures Project No WE-TN-10019 Revision R1A Page 2 / 11 All rights reserved and property of Comba 1 INTRODUCTION This document is primarily written for those who are new to RD-2020 and wish to tune up the repeater. The document is applicable to below products from Comba. Model number: RD2020-04V102P40U45A92 End of Section 2 PREPARATION This section will be discussing on: 1. What to prepare for those who are going to operate the repeater; 2. LED Indicator description; 3. How to connect to repeater for setting. 2.1 PERSONNEL PREPARATION 1. The following checklist will help to make sure relevant personnel get ready before operation. The personnel preparation list: 1. Only trained or qualified personnel is recommended for performing tuning with repeater. Personnel should be with necessary knowledge of electronic, RF, and familiar with local regulation, rules. 2. Personnel shall read through the manual/instructions/guide carefully before operation. 3. Check if there is warning/alert sign on the equipment to avoid possible danger. 4. Wear proper cloth. If necessary, equip with PPE (Personal Protective Equipment). 5. Before operation, procedures and data recording form should be prepared. 2. Package Inspect Visual inspect the external product package, and check internal items according to packing list. Prepare ample space and easy accessible to socket-outlet. For tools reference please find in manual. 3. Tools preparation Please prepare tools and measure instruments ready before hand-on. For tools recommendation please refer to product manual. Handling Precautions This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or restraining an object, animal or person. It also covers activities that require the use of force or effort, such as pulling a lever, or operating power tools. Issued by SPGZ Date 19-09-10 Checked by SPGZ Document Id WE-TN-10019-R1A Title RD-2020 Tune Up Procedures Project No WE-TN-10019 Revision R1A Page 3 / 11 All rights reserved and property of Comba Caution, Electrostatic Discharge (ESD): Before removing the antistatic bag from repeater, enough caution shall be taken to avoid ESD. The Anti-static Wrist Strap is recommended. 2.2 INDICATORS AND POWER UP Before power up, please check product voltage requirement, and make sure the socket and repeater enclosure is with good grounding protection. Warning: Always be caution to voltage safety. Before hands-on operation, check if the equipment is powered off and disconnected from power supply or otherwise will cause personnel injury and equipment damage. 2.1.1 PSU LED Turn on the left switch as shown in the figure below. Figure 1: PSU Indicator The normal PSU LED status will be: LED Description AC input Steady red on when normal DC input Steady green on when normal Table 1: PSU LEDs Other status indicates abnormal functions, stop proceeding to next step until problem solved. The multi-meter is recommended here to measure the voltage of the PSU (AC: depends on local voltage. DC: 24V out). 2.1.2 Module LED The LEDs on module boards(Frequency Selective Module, PA module) will be blinking at about one time per second synchronously. Other status indicates abnormal functions, stop proceeding to next step until problem solved. Issued by SPGZ Date 19-09-10 Checked by SPGZ Document Id WE-TN-10019-R1A Title RD-2020 Tune Up Procedures Project No WE-TN-10019 Revision R1A Page 4 / 11 All rights reserved and property of Comba Figure 2: Internal Layout 2.1.3 MCU LED The MCU (Main Control Unit) locates on the Distribution board, and three diagnostic LEDs are located on the MCU, each indicating the status of a particular function: Identifier Colour Indication H1 Green MCU operation. Flashes at a rate of 1 flash/sec. Any other flashing rate indicates MCU is faulty, and has to be replaced. H2 Red Alarm LED. When ON, it indicates alarm condition. H3 Red Wireless modem status. During normal operation, it is OFF. When ON, it indicates faulty wireless modem and no communication will take place. Reset N/A Reset button. Press the reset button to restart the system. Table 2: MCU LEDs MCU Initialization Issued by SPGZ Date 19-09-10 Checked by SPGZ Document Id WE-TN-10019-R1A Title RD-2020 Tune Up Procedures Project No WE-TN-10019 Revision R1A Page 5 / 11 All rights reserved and property of Comba All three diagnostic LEDs of each MCU will fl…

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SGS-CSTC Standards Technical Services Co., Ltd. This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only. FCC ID: PX8RD-2020 RF Exposure Compliance Requirement 1. Standard requirement Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radia frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. (a) Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times
E
2
,H
2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100000 5.0 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times
E
2
,H
2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/500 30 1500-100000 1.0 30 Note: f=frequency in MHz; *Plane-wave equivalent power density SGS-CSTC Standards Technical Services Co., Ltd. This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only. 2. MPE Calculation Method S (mW/cm 2 )=P*G/4Pi*R 2 S= Power Density (mW/cm 2 ) P=Peak RF conducted output Power (mW) G=EUT Antenna numeric gain (numeric) R= Separation distance between radiator and human body (cm); R= SPiGP*4/)*( From the maximum EUT RF output power, as well as the gain of the used antenna, according to the RF power density limit above, the minimum distance between the antenna and human body will be calculated. 3. Calculated Result For downlink: Frequency (MHz) F Maximum Antenna Gain (dBi) Maximum Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Limit of Power Density (S) (mW/cm 2 ) Minimum Distance to human body (cm) 2132.5 21 125 39.1 8128 5.0 127 2132.5 21 125 39.1 8128 1.0 284 For uplink: Frequency (MHz) F Maximum Antenna Gain (dBi) Maximum Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Limit of Power Density (S) (mW/cm 2 ) Minimum Distance to human body (cm) 1732.5 21 125 22.9 195 5.0 19.7 1732.5 21 125 22.9 195 1.0 44 Conclusion: So the recommend use distance away from EUT external antenna is larger than 2.84 meter.

Report No.: GZEM100700129601 Page: 1 of 51 FCC ID: PX8RD-2020 Authorized Signature: Stephen Guo Lab Manager The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. All test results in this report can be traceable to National or International Standards. This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only SGS-CSTC Standards Technical Services Ltd. 198 Kezhu Road, Scientech Park, Guangzhou Economic & Technology Development District, Guangzhou, China 510663 Tel: +86 20 82155555 Fax: +86 20 82075059 Email: [email protected] FEDERAL COMMUNICATIONS COMMISSION Registration number: 282399 TEST REPORT Application No.: GZEM1007001296RF Applicant: Comba Telecom Ltd. FCC ID: PX8RD-2020 Downlink: 2110MHz to 2155MHz Frequency Band: Uplink: 1710MHz to 1755MHz Equipment Under Test (EUT): Name: RD2020 AWS Bandwidth Adjustable Repeater Model No: RD-2020 Standards: FCC part 27, FCC part 2 Date of Receipt: 2010-07-23 Date of Test: 2010-07-23 to 2010-07-28 Date of Issue: 2010-11-02 Test Result : Pass* * In the configuration tested, the EUT detailed in this report complied with the standards specified above. Please refer to section 3 of this report for further details. SGS-CSTC Standards Technical Services Co., Ltd. Re…

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