AB6NT1900SFRMSingle Channel PCS Band CDMA Base Station

January 04, 2002 Timothy R. Johnson Examining Engineer American TCB RE: Nortel Networks FCC ID: AB6NT1900SFRM Radio Filing Dear Mr. Johnson, Please find below the Sanmina-SCI clarifications following the ATCB Comments dated January 3, 2002, with respect to the subject filing: 1) As per ATCB request, please see the attached ‘TRANSMIT LABEL PHOTO’ from Exhibit 3 of the filing in jpeg file format. 2) The FRN Number of Nortel is 0005-1887-27. 3) Section 3.0 from Exhibit 2B shows the equipment used for measurements below and above 1GHz. Please note that the HP 8447D amplifier was only used for measurements below 1GHz. For all measurements above 1GHz, the LNA used was MITEQ (Model No JSD 00121, S/N 838621) and was verified internally before use. The table pertaining to equipment list above 1GHz will be revised to reflect the correct LNA and the exhibit 2B will be resubmitted. Please note that the correction factors can be accounted for by the average gain of the MITEQ LNA over the frequency range: 65 dB (For example: Gain at 5.01 GHz is 64.6 dB, at 15.00 GHz is 63.8 dB, at 20.00 GHz is 61.01 dB). 4) The title of Nortel Network’s report (Exhibit 2A) reflects the Nominal power (20.4 Watts) for the Amplifier Module. Sections of the exhibit where the power is stated as 16.98 Watts reflects the nominal power measured at the output of the antenna port. The lower value can be attributed to losses between the antenna port and the output of the amplifier due to Duplexer/Triplexer losses. 5) No ‘calculations’ are applicable to section 3.4 of Exhibit 2. The Emission designator was chosen as per the guidelines of section 2.201 of the FCC Rules Part 2, Subpart C-Emissions. The EUT is a CDMA base- station with the nominal bandwidth of a single channel being 1.25MHz. The Emission designator 1M25F9W provides the closest match to the EUT from the available choices from the FCC Rule Parts (Also 1M25F9W was used as requested by ATCB in previous applications). 6) Please note that since the EUT will shut down automatically below -5 degrees Celsius (through the use of system alarms), the requirement below this temperature is not applicable. The GPSTM module, however, is capable of withstanding storage temperatures in the range –40 degrees Celsius to +85 degrees Celsius as shown in Section 5.1.2 of the module OEM specification (Exhibit 11). Please do not hesitate to call me if there are any further questions. Sincerely, Mohammad Hossain EMC Engineer Sanmina-SCI Canada 6751 9 St NE, Calgary, AB, T2E 8R9 Tel: 403-295-5122, Fax: 403-295-8862

This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT 5 External Photographs Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM EUT (1900 MHz SFRM) external photographs: Figure 1: 1900 MHz TRM Top view Figure 2: 1900 MHz TRM Bottom view Test setup photographs for “Field Strength of Spurious Radiation” test: See Exhibit 2B (Sanmina-SCI Lab report) Test setup photographs for all other tests performed by Nortel Networks: Figure 3: Test Instrumentation Setup Figure 4: 1900 MHz SFRM Assembly Top - Front view (Fan Assembly Mounted) 1900 MHz TRM

This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT Transmit Label Photo Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM FCC Label Photographs: Figure 1: Nortel Networks, AB6NT1900SFRM, FCC Identifier Location Figure 2: Nortel Networks, AB6NT1900SFRM, FCC Identifier Label

This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT 6 Internal Photographs Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM EUT (1900 MHz TRM) internal photographs Figure 1: 1900 MHz TRM internal view Figure 2: 1900 MHz TRM internal view uP Board Power Supply Module Transceiver PCP TRM Top Plate TRM Bottom Plate Figure 3: 1900 MHz TRM internal view Figure 4: 1900 MHz TRM internal view Figure 5: Transceiver PCP (Bottom view) Figure 6: Transceiver PCP (Top view)

This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT 2 Test Report Summary Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM Application for Certification Prepared on: December 19, 2001 FCC ID: AB6NT1900SFRM This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. 1 Introduction This information is submitted in accordance with the FCC rules and regulations, Part 2, Subpart J, §2.1046 through §2.1057 for Certification of the Northern Telecom’s (Nortel Networks) CDMA 1900 MHz Single carrier Flexible Radio Module (SFRM); henceforth referred to as equipment under test (EUT). This 1900 MHz SFRM is intended for use in the Domestic Public Cellular Radio Telecommunications Service and is designed in accordance with the following standards: • CFR 47, Part 24, Subpart E, Broadband Personal Communications Service • CFR 47, Part 2, Subpart J, Equipment Authorization Procedures – Certification 1.1 Test Result Summary Table 1 summarizes the measurement results for the CDMA 1900 MHz SFRM. Table 1: Test Results Summary FCC Measurement Specification FCC Limit Specification Description Results Test(s) Conducted By Remarks 2.1046 24.232 RF Output Power Compliant Nortel Networks See Exhibit 2A 2.1047 Modulation Characteristics Not Applicable 2.1049 Occupied Bandwidth OBW= 1.2725 MHz Nortel Networks See Exhibit 2A 2.1051, 2.1057 24.238 Spurious Emissions at Antenna Terminals Compliant Nortel Networks See Exhibit 2A 2.1053, 2.1057 24.238 Field Strength of Spurious Radiation Compliant Sanmina Canada ULC See Exhibit 2B 2.1055 24.235 Frequency Stability Compliant Nortel Networks See Exhibit 2A Notes 1: - Details of the configurations are described in the individual test reports (Exhibits 2A and 2B). - Signal substitution was performed to verify compliance with the requirements (Exhibit 2B). - Outdoor version of the EUT was tested with doors open to cover off the indoor version. Note 2: - See section 4 for EUT configurations during the applicable test. Application for Certification Prepared on: December 19, 2001 FCC ID: AB6NT1900SFRM This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. 3 Certification Application Requirements 3.1 Name of Applicant The applicant is Northern Telecom (Nortel Networks) Limited. 3.2 Identification of Equipment The equipment in this application for Certification is the Northern Telecom’s (Nortel’s) CDMA 1900 MHz Single carrier Flexible Radio Module (SFRM). The 1900MHz SFRM will be marketed under the model number NT1900SFRM. The FCC ID number sought is AB6NT1900SFRM. 3.3 Technical Description See Exhibit 4. 3.4 Types of Emissions The 1900 MHz SFRM assembly is designed to operate in digital mode. The emission type is F9W for CDMA mode. The emission designator is 1M25F9W. The emission designator was calculated based on the requirements of FCC Rules under Part 2, Subpart C - Emissions, section 2.201 and Section 2.202. The emission designator is 1M25F9W - 1.25 MHz nominal bandwidth, F9W as per request of American TCB. 3.5 Frequency Range The 1900 MHz SFRM operates in the 1900 MHz cellular band where the operating frequency ranges are 1850 – 1910 MHz for the Receiver and 1930 – 1990 MHz for the Transmitter. The following table shows the valid CDMA channels within this band. Table 2: CDMA Channel Numbers and Frequencies Transmitter Frequency Assignment (MHz) Band CDMA Channel Number Mobile Base Valid CDMA Frequency Assignment 0-24 1850.00-1851.20 1930.00-1931.20 In-Valid 25-275 1851.25-1863.75 1931.25-1943.75 Valid A 276-299 1863.80-1864.95 1943.80-1944.95 Cond. Valid 300-324 1865.00-1866.20 1945.00-1946.20 In-Valid 325-375 1866.25-1868.75 1946.25-1948.75 Valid D 376-399 1868.8-1869.95 1948.80-1949.95 Cond. Valid 400-424 1870.00-1871.20 1950.00-1951.20 In-Valid B 425-675 1871.25-1883.75 1951.25-1963.75 Valid Application for Certification Prepared on: December 19, 2001 FCC ID: AB6NT1900SFRM This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. Transmitter Frequency Assignment (MHz) Band CDMA Channel Number Mobile Base Valid CDMA Frequency Assignment 676-699 1883.80-1884.95 1963.80-1964.95 Cond. Valid 700-724 1885.00-1886.20 1965.00-1966.20 In-Valid 725-775 1886.25-1888.75 1966.25-1968.75 Valid E 776-799 1888.80-1889.95 1968.80-1969.95 Cond. Valid 800-824 1890.00-1891.20 1970.00-1971.20 In-Valid 825-875 1891.25-1893.75 1971.25-1973.75 Valid F 876-899 1893.80-1894.95 1973.80-1974.95 Cond. Valid 900-924 1895.00-1896.20 1975.00-1976.20 In-Valid 925-1175 1896.25-1908.75 1976.25-1988.75 Valid C 1176-1199 1908.80-1909.95 1988.80-1989.95 Cond. Valid 3.6 Range of Operating Power The 1900 MHz SFRM range of operating RF power is 23 dBm to 42.3 dBm as per documentation provided by Nortel Networks. 3.7 Maximum Power Rating The maximum RF power output of the CDMA 1900 MHz SFRM is 42.3 dBm. 3.8 Function of Each Active Circuit Device See Exhibit 4 (Technical Description) and Exhibit 10 (Function Description) for a listing of devices incorporated in the SFRM. 3.9 Complete Circuit Diagrams Exhibit 8 contains schematics of devices incorporated in the Transmit/Receive module. 3.10 User Manual See Exhibit 10. 3.11 Tune-Up Procedure The tune-up tests will be performed as part of the factory testing on the SFRM. This procedure includes power output levels, spurious emissions, and occupied bandwidth. There are no user adjustments that will have any effect on these settings. No tune-up testing is required in the field. Application for Certification Prepared on: December 19, 2001 FCC ID: AB6NT1900SFRM This document contains Proprietary Information of Northern Teleco…

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This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT 2A Test Report (Provided by Nortel Networks) Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM Test Report for FCC Equipment Authorization FCC ID : AB6NT1900SFRM CDMA Metro Cell 1900MHz 20.4W SFRM Document: TR_AB6NT1900SFRM Stream: 00 Issue: 03 Document Status: Approved Issue Date: December 13, 2001 Security Status: Nortel Networks Confidential Author: Michael Dawson  2001 Nortel Networks Limited Disclaimer The master of this document is stored on an electronic database and “write protected”. The protection can be altered by authorized persons only. Viewing of the master document electronically ensures access to the current issue. Any hardcopies must be regarded as uncontrolled copies. Security Warning The information disclosed herein is proprietary to Nortel Networks and not to be used by or disclosed by unauthorized persons without the written consent of Nortel Networks. The recipient of this document shall respect the security status of the information. PAGE INTENTIONALLY LEFT BLANK Test Report for FCC Equipment Authorization FCC ID : AB6NT1900SFRM Wireless Access December 13, 2001Nortel Networks Confidential ApprovedStream 00 Issue 03Page 3 Table of Contents Publication History .......................................................................................................................6 List of Consultants ....................................................................................................................6 Decision Maker/Ratifier ...........................................................................................................6 Revision History .......................................................................................................................6 Acronyms and Abbreviations ......................................................................................................7 1 Introduction.................................................................................................................................9 1.1 Test Result Summary ...........................................................................................................9 2 Engineering Declaration...........................................................................................................10 3 Equipment Authorization Application Requirements ..........................................................11 3.1 Standard Test Conditions and Test Equipment..................................................................11 3.2 EUT Identification List ......................................................................................................11 3.3 Test Equipment List ...........................................................................................................11 4 Transmitter Test and Measurement Results ..........................................................................13 4.1 RF Power Output ...............................................................................................................13 4.1.1 RF Power Output Requirements .........................................................................13 4.1.1 FCC Part 2.1046 .....................................................................................13 4.1.1 FCC Limit (Part 24.232) .........................................................................13 4.1.2 Test Method ........................................................................................................13 4.1.3 Test Setup ...........................................................................................................13 4.1.4 Test Results .........................................................................................................14 4.2 Occupied Bandwidth..........................................................................................................15 4.2.1 Occupied Bandwidth Requirements ...................................................................15 4.2.1 FCC Part 2.1049 .....................................................................................15 4.2.2 Test Method ........................................................................................................15 4.2.3 Test Setup ...........................................................................................................15 4.2.4 Test Results .........................................................................................................16 4.3 Spurious Emissions at Antenna Terminals ........................................................................19 4.3.1 Spurious Emissions Requirements......................................................................19 4.3.1 FCC Part 2.1051 .....................................................................................19 4.3.1 FCC Part 2.1057 - Frequency Spectrum to be investigated....................20 4.3.1 FCC Part 24.238 Limit............................................................................20 4.3.2 Test Method ........................................................................................................20 4.3.3 Test Setup ...........................................................................................................21 4.3.4 Test Results .........................................................................................................21 4.4 Frequency Stability ............................................................................................................39 4.4.1 Frequency Stability Requirements ......................................................................39 4.4.1 FCC Part 2.1055 .....................................................................................39 4.4.1 FCC Part 24.235 Limit...........................................................…

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This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately. EXHIBIT 2B Revised Test Report (Provided by Sanmina Canada) Applicant: Northern Telecom Ltd. For Certification on: AB6NT1900SFRM Product Integrity Laboratory 5111-47 th Street, N.E. Calgary, Alberta, T3J-3R2 Tel (403) 295-5117 Fax (403) 295-4091 RADIATED EMISSIONS 30MHz-20GHz REPORT RE02-10M-2001-028 RE03-10M-2001-010 CDMA Outdoor Metrocell 1900MHz SFRM (20.4 Watts) Revision: 4.0 Prepared for: Nortel Networks Keywords: Radiated Emissions 30MHz – 1GHz Radiated Emissions 1GHz - 20GHz Abstract: Electromagnetic Compatibility testing report for FCC Part2 Rules for Equipment Authorization Author: Jacky Wong Product tested: November 26, 2001 – December 5, 2001 Report Prepared: January 3, 2002 Approved by: Matthew Buxton Sanmina Product Integrity Laboratory Manager Customer: Sanmina Design Solutions For: Nortel Networks 6751-9 th Street NE 5111 47 th Street NE Calgary, Alberta T2E 8R9 Calgary, Alberta T3J-3R2 Customer Contact: Troy Williams Project Number: PI 80053 Laboratory Project Number: 01NOR009 Confidentiality Statement: The information contained in this document is the property of Sanmina Canada ULC. Except as specifically authorized in writing by the Director of Sanmina Canada, the holder of this document shall keep all information contained herein confidential and shall protect the same, in whole or in part, from disclosure and dissemination to all third parties RE02-10m-2001-028 CDMA Outdoor 1900MHz SFRM System RE03-10m-2001-010 The test results contained in this report refer exclusively to the product(s) presented for testing. The test results do not cover models or products not referred herein. This test report should not be published or duplicated in part without permission of the testing body. Sanmina Canada ULC Design Solution, 6751 9 th St NE T2E 8R9, Tel: 403-295-5100 Confidential Page 1 of 20 January 03, 2002 1. Table of Contents 1 Table of Contents...........................................................................................................................................1 2 Release Control Record.................................................................................................................................3 3 Measurement Equipment...............................................................................................................................3 4 Customer Agreements...................................................................................................................................5 5 Equipment Log...............................................................................................................................................6 5.1 Equipment serial number and PEC...............................................................................................................6 5.2 System Cables and Interconnect...................................................................................................................9 6 Radiated Suprious Emissions Test..............................................................................................................10 6.1 Test Basis...................................................................................................................................................10 6.2 Test Specifications......................................................................................................................................10 6.3 Test Procedure...........................................................................................................................................10 6.4 Measurement Uncertainty...........................................................................................................................10 6.5 Deviations from standard............................................................................................................................10 6.6 Test Results................................................................................................................................................10 6.7 Signature.....................................................................................................................................................10 APPENDIX A: TEST DATA..................................................................................................................................11 APPENDIX B: PHOTOGRAPHS..........................................................................................................................18 RE02-10m-2001-028 CDMA Outdoor 1900MHz SFRM System RE03-10m-2001-010 The test results contained in this report refer exclusively to the product(s) presented for testing. The test results do not cover models or products not referred herein. This test report should not be published or duplicated in part without permission of the testing body. Sanmina Canada ULC Design Solution, 6751 9 th St NE T2E 8R9, Tel: 403-295-5100 Confidential Page 2 of 20 January 03, 2002 Sanmina Canada ULC Product Integrity Laboratory 5111-47 th Street, N.E., Calgary Alberta T3J 3R2 Test Report No: RE02-10m-2001-028 RE03-10m-2001-010 Customer: Sanmina Design Solution For: Nortel Networks 6751 – 9 th Street NE. 5111 47 th Street N.E. Calgary, Alberta T2E 8R9 Calgary, Alberta T3J-3R2 Tel: (403) 295-5100 Tel: (403) 769-2000 EUT description: Metrocell CDMA Model: Metrocell Base Station Transceiver System (MCBTS) supports CDMA 1900MHz SFRMS Test Location: Sanmina PI Laboratory, Calgary Alberta Test Basis Standard Test Case Result ANSI C63.4 FCC Rules Part 24 Radiated Emissions 30MHz – 1GHz Radiated Emissions 1GHz – 20GHz PASS PASS Test result: The product presented for testing complied with test requirements shown above. Additional information: Appendix A: Test Data 06 Pages Appendix B: Photographs 02 Pages RE02-10m-2001-028 CD…

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