POQWPE-2200Hand Held PCS Band CDMA Cellular Transceiver

FCC RF EXPOSURE INFORMATION In August 1996 the Federal Communications Commission (FCC) of the United States with its action in Report and Order FCC 96-326 adopted an updated safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC regulated transmitters. Those guidelines are consistent with the safety standard previously set by both U.S. and international standards bodies. The design of this phone complies with the FCC guidelines and these international standards. Use only the supplied or an approved antenna. Unauthorized antennas, modifications, or attachments could impair call quality, damage the phone, or result in violation of FCC regulations. Do not use the phone with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor burn may result. Please contact your local dealer for replacement antenna. Body-worn Operation This device has been tested for body-worn operation and meets FCC RF exposure guidelines when used with an accessory that contains no metal components, and positions the handset at a minimum of 1.5cm from the body. Use of other body-worn accessories may not ensure compliance with FCC RF exposure guidelines and should be avoided. For more information about RF exposure, please visit the FCC website at www.fcc.gov Read this information before using your phone

Celltech Research Inc. 1955 Moss Court, Kelowna, B.C. Canada V1Y 9L3 Tel. 250-860-3130 •• Fax. 250-860-3110 •• e-mail: [email protected] www.celltechlabs.com November 30, 2001 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 SUBJECT: Withus IT Co., Ltd. FCC ID: POQWPE-2200 FCC Part 24 Certification Gentlemen: On behalf of Withus IT Co., Ltd. is an application for Part 24 Certification of WPE-2200 single- band single-mode PCS CDMA handset as follows: FCC ID: POQWPE-2200 Model(s): WPE-2200 Equipment Class: Part 24 Licensed Portable Transmitter Held to Ear (PCE) Equipment Type: PCS CDMA Handset Tx Freq. Range: 1851.25 - 1908.75 MHz Max. RF Output Power: 0.463 Watts (EIRP) Emission Designator: 1M25F9W Attached is the Authorization Letter, Confidentiality Request, Part 24 measurement report test data and photographs, SAR RF exposure measurement report test data and photographs, FCC ID label and location, internal and external photographs, block diagrams (confidential), circuit diagrams (confidential), circuit description (confidential), parts list (confidential), tune-up procedure (confidential), antenna specifications (confidential), operational description (confidential), and the user's manual. If you have any questions or comments concerning the above, please contact the undersigned. Sincerely, Shawn McMillen General Manager Celltech Research Inc. Testing & Engineering Lab cc: Withus IT Co., Ltd.

Celltech Research Inc. 1955 Moss Court, Kelowna, B.C. Canada V1Y 9L3 Tel. 250-860-3130 •• Fax. 250-860-3110 •• e-mail: [email protected] www.celltechlabs.com January 11, 2002 Federal Communications Commission Equipment Approval Services 7435 Oakland Mills Road Columbia, MD 21046 Attn: Frank Coperich SUBJECT: Withus IT Co., Ltd. FCC ID: POQWPE-2200 731 Confirmation No.: TC906802 Correspondence Ref. No.: 3395 Dear Frank: On behalf of Withus IT Co., Ltd., we hereby submit our response to your e-mail dated January 4, 2002 requesting additional information for the subject application. EMC: 1. Please find attached retested band edge and bandwidth test plots with video and resolution bandwidths set to 30kHz. SAR: 1. The 1800MHz probe conversion factors used for the SAR evaluation were 5.78 for head and 5.36 for body. The manufacturers specified probe conversion factors at 1900MHz are 5.66 and 5.25 for head and body respectively. A re-evaluation of the highest SAR values for the EUT using 1900MHz probe conversion factors increases the overall SAR for head and body by approximately 2%, which is less than the uncertainty of the probe conversion factors and considerably less then the overall uncertainty of the entire system. 2. Please find attached revised page 10 of the SAR report with corrected measured liquid dielectric parameters. Please note that the previously submitted measured liquid dielectric parameters inadvertently stated a +/- 5% measurement uncertainty range. 3. Please find attached revised page 15 of the SAR report showing the appropriate measurement uncertainty table per IEEE P1528. The previously filed measurement uncertainty table was inadvertently submitted. 4. The reference to CENELEC and the 5dB error was inadvertently submitted and has now been removed from the measurement uncertainty page of the SAR report. Please find attached revised page 15 of the SAR report. 5. Please see attached revised measurement uncertainty page (15) of the SAR report with corrected probe calibration uncertainty budget of 4.4%. The system manufacturer states that when the uncertainty of the calibration is used alone then the k=2 factor applies. When the uncertainty of the calibration is used as part of the complete analysis then k=1 is used. If you have any questions or comments concerning the above, please do not hesitate to contact me. Sincerely, Shawn McMillen General Manager Celltech Research Inc. Testing & Engineering Lab cc: Withus IT Co., Ltd. American TCB CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWPE-2200 10 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) 7.0 SYSTEM VALIDATION Prior to the assessment, the system was verified in the planar section of the SAM phantom using a 1800MHz dipole. A forward power of 250mW was applied to the dipole, and the system was verified to a tolerance of +10%. The applicable verification is as follows (see Appendix B for validation test plot): 8.0 TISSUE PARAMETERS The dielectric parameters of the fluids were verified prior to the SAR evaluation using an 85070C Dielectric Probe Kit and an 8753E Network Analyzer. The dielectric parameters of the fluid are as follows: Dipole Validation Kit Target SAR 1g (w/kg) Measured SAR 1g (w/kg) Fluid Temperature Validation Date 9.65 ≈23.0 °C 11/20/01 D1800V2 9.66 9.63 ≈23.0 °C 11/21/01 BRAIN TISSUE PARAMETERS - DIPOLE VALIDATION & EUT EVALUATION Equivalent Tissue Dielectric Constant εε r Conductivity σσ (mho/m) ρρ (Kg/m 3 ) 1800MHz Brain (Target) 40.0 ±5% 1.40 ±5% 1000 1800MHz Brain (Measured: 11/20/01) 40.3 1.40 1000 1800MHz Brain (Measured: 11/21/01) 40.1 1.40 1000 BODY TISSUE PARAMETERS - EUT EVALUATION Equivalent Tissue Dielectric Constant εε r Conductivity σσ (mho/m) ρρ (Kg/m 3 ) 1800MHz Body (Target) 53.3 ±5% 1.52 ±5% 1000 1800MHz Body (Measured: 11/21/01) 53.4 1.52 1000 CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWPE-2200 15 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) 16.0 MEASUREMENT UNCERTAINTIES Error Description Uncertainty Value ±±% Probability Distribution Divisor c i 1g Standard Uncertainty ±±% (1g) v i or v eff Measurement System Probe calibration ± 4.4 Normal 1 1 ± 4.4 ∞ Axial isotropy of the probe ± 4.7 Rectangular √3 (1-c p ) ± 1.9 ∞ Spherical isotropy of the probe ± 9.6 Rectangular √3 (c p ) ± 3.9 ∞ Spatial resolution ± 0.0 Rectangular √3 1 ± 0.0 ∞ Boundary effects ± 5.5 Rectangular √3 1 ± 3.2 ∞ Probe linearity ± 4.7 Rectangular √3 1 ± 2.7 ∞ Detection limit ± 1.0 Rectangular √3 1 ± 0.6 ∞ Readout electronics ± 1.0 Normal 1 1 ± 1.0 ∞ Response time ± 0.8 Rectangular √3 1 ± 0.5 ∞ Integration time ± 1.4 Rectangular √3 1 ± 0.8 ∞ RF ambient conditions ± 3.0 Rectangular √3 1 ± 1.7 ∞ Mech. constraints of robot ± 0.4 Rectangular √3 1 ± 0.2 ∞ Probe positioning ± 2.9 Rectangular √3 1 ± 1.7 ∞ Extrap. & integration ± 3.9 Rectangular √3 1 ± 2.3 ∞ Test Sample Related Device positioning ± 6.0 Normal 0.89 1 ± 6.7 12 Device holder uncertainty ± 5.0 Normal 0.84 1 ± 5.9 8 Power drift ± 5.0 Rectangular √3 ± 2.9 ∞ Phantom and Setup Phantom uncertainty ± 4.0 Rectangular √3 1 ± 2.3 ∞ Liquid conductivity (target) ± 5.0 Rectangular √3 0.6 ± 1.7 ∞ Liquid conductivity (measured) ± 10.0 Rectangular √3 0.6 ± 3.5 ∞ Liquid permittivity (target) ± 5.0 Rectangular √3 0.6 ± 1.7 ∞ Liquid permittivity (measured) ± 5.0 Rectangular √3 0.6 ± 1.7 ∞ Combined Standard Uncertainty ± 13.6 Extended Standard Uncertainty (k=2) ±± 27.1

CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) EXTERNAL EUT PHOTOGRAPHS

CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) FCC ID LABEL & LOCATION LABELLING REQUIREMENTS PER §§ 2.925 The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. WITHUS WPE-2200 FCC ID: POQWPE-2200- 220 WITHUS Information & Telecommunications Co., Ltd. MADE IN KOREA

CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) INTERNAL EUT PHOTOGRAPHS

CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. CERTIFICATE OF COMPLIANCE SAR EVALUATION Celltech Research Inc. declares under its sole responsibility that this device was found to be in compliance with the Specific Absorption Rate (SAR) RF exposure requirements specified in OET Bulletin 65, Supplement C, Edition 01-01 (General Population/Uncontrolled Exposure), and was tested in accordance with the appropriate measurement standards, guidelines, and recommended practices specified in American National Standards Institute C95.1-1992. I attest to the accuracy of data. All measurements were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. This test report shall not be reproduced partially, or in full, without the prior written approval of Celltech Research Inc. The results and statements contained in this report pertain only to the device(s) evaluated. Shawn McMillen General Manager Celltech Research Inc. Test Lab: CELLTECH RESEARCH INC. Testing and Engineering Lab 1955 Moss Court Kelowna, B.C. Canada V1Y 9L3 Phone: 250 - 860-3130 Fax: 250 - 860-3110 Toll Free: 1-877-545-6287 e-mail: [email protected] web site: www.celtechlabs.com Applicant Information: WITHUS IT CO., LTD. 2F. DongNam Bldg. 448-16 Shingil-5Dong, YongDungPo-Ku, Seoul, Korea FCC ID: POQWPE-2200 Model(s): WPE-2200 Equipment Type: Single-Mode PCS CDMA Phone Classification: Part 24 Licensed Portable Transmitter Held to Ear (PCE) Tx Frequency Range: 1851.25 - 1908.75 MHz Rx Frequency Range: 1931.25 - 1988.75 MHz Max. RF Output Power: 0.463 Watts (EIRP) FCC Rule Part(s): 2.1093; ET Docket 96.326 CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. TABLE OF CONTENTS 1.0 INTRODUCTION.................................................................. 1 2.0 DESCRIPTION OF EUT.......................................................... 1 3.0 SAR MEASUREMENT SYSTEM ............................................. 2 4.0 MEASUREMENT SUMMARY.................................................. 3-5 5.0 DETAILS OF SAR EVALUATION........................................... 6-7 6.0 EVALUATION PROCEDURES................................................. 8-9 7.0 SYSTEM VALIDATION.......................................................... 10 8.0 TISSUE PARAMETERS......................................................... 10 9.0 SIMULATED EQUIVALENT TISSUES...................................... 11 10.0 SAR LIMITS........................................................................ 11 11.0 SYSTEM SPECIFICATIONS.................................................... 12 12.0 SAM PHANTOM.................................................................... 13 13.0 DEVICE HOLDER................................................................. 13 14.0 PROBE SPECIFICATION....................................................... 13 15.0 TEST EQUIPMENT LIST........................................................ 14 16.0 MEASUREMENT UNCERTAINTIES........................................ 15 17.0 REFERENCES...................................................................... 16 APPENDIX A - SAR MEASUREMENT DATA........................................ 17 APPENDIX B - DIPOLE VALIDATION................................................ 18 APPENDIX C - PROBE CALIBRATION............................................... 19 APPENDIX D - SAR SENSITIVITIES.................................................... 20 APPENDIX E - SAR TEST SETUP PHOTOGRAPHS.............................. 21 CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWPE-2200 1 Single-Mode PCS CDMA Phone (1851.25-1908.75MHz) 1.0 INTRODUCTION This measurement report shows that the WITHUS IT CO., LTD. Model: WPE-2200 Single- Mode PCS CDMA Phone FCC ID: POQWPE-2200 complies with FCC Part 2.1093, ET Docket 96-326 Rules for mobile and portable devices. The test procedures, as described in American National Standards Institute C95.1-1992 (see reference [1]), and FCC OET Bulletin 65, Supplement C, Edition 01-01 (see reference [2]) were employed. A description of the product and operating configuration, detailed summary of the test results, methodology and procedures used in the evaluation, equipment used, and the various provisions of the rules are included within this test report. 2.0 DESCRIPTION of Equipment Under Test (EUT) EUT Type Single-Mode PCS CDMA Phone FCC ID POQWPE-2200 Equipment Class Licensed Portable Transmitter Held to Ear (PCE) Model No.(s) WPE-2200 FCC Rule Part(s) § 2.1093, Docket 96-326 Application Type FCC Part 24 Certification Tx Frequency Range 1851.25 - 1908.75 MHz Serial No. Pre-production Unit Rx Frequency Range 1931.25 - 1988.75 MHz Battery Type(s) 3.7V 950mA/h Lithium-Ion Battery Modulation PCS CDMA Antenna Type Retractable Whip (1/4λ) Max. RF Output Power 0.463 Watts (EIRP) Antenna Length 113 mm CELLTECH RESEARCH INC. Test Report S/N: 111601-184POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 20-21, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT C…

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FCC RF EXPOSURE INFORMATION In August 1996 the Federal Communications Commission (FCC) of the United States with its action in Report and Order FCC 96-326 adopted an updated safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC regulated transmitters. Those guidelines are consistent with the safety standard previously set by both U.S. and international standards bodies. The design of this phone complies with the FCC guidelines and these international standards. Use only the supplied or an approved antenna. Unauthorized antennas, modifications, or attachments could impair call quality, damage the phone, or result in violation of FCC regulations. Do not use the phone with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor burn may result. Please contact your local dealer for replacement antenna. Body-worn Operation This device has been tested for body-worn operation and meets FCC RF exposure guidelines when used with an accessory that contains no metal components, and positions the handset at a minimum of 1.5cm from the body. Use of other body-worn accessories may not ensure compliance with FCC RF exposure guidelines and should be avoided. For more information about RF exposure, please visit the FCC website at www.fcc.gov Read this information before using your phone

CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification _________________________________________________________________________________________________________________ © 2001 Celltech Research Inc. CERTIFICATE OF COMPLIANCE FCC PART 24 CERTIFICATION This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in §2.947. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. This test report shall not be reproduced partially, or in full, without the prior written approval of Celltech Research Inc. The results and statements contained in this report pertain only to the device(s) evaluated. Shawn McMillen General Manager Celltech Research Inc. Test Lab: CELLTECH RESEARCH INC. Testing and Engineering Services 1955 Moss Court Kelowna, B.C. Canada V1Y 9L3 Phone: 250 - 860-3130 Fax: 250 - 860-3110 Toll Free: 1-877-545-6287 e-mail: [email protected] web site: www.celltechlabs.com Applicant Information: WITHUS IT CO., LTD. 2F. DongNam Bldg. 448-16 Shingil-5Dong, YongDungPo-Ku, Seoul, Korea FCC Classification: Part 24 Licensed Portable Transmitter Held to Ear (PCE) FCC Rule Part(s): §24(E), §2 FCC ID: POQWPE-2200 Model(s): WPE-2200 Equipment Type: Single-Mode PCS CDMA Phone Tx Frequency Range: 1851.25 - 1908.75 MHz Rx Frequency Range: 1931.25 - 1988.75 MHz Max. RF Output Power: 0.463 Watts (EIRP) Frequency Tolerance: 150 Hz Emission Designator: 1M25F9W CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. TABLE OF CONTENTS 1.1 SCOPE 1 1.2 GENERAL INFORMATION (2.1033(a)) 1 2.1 MEASUREMENT PROCEDURES 2 Conducted Power (2.1046) 2 Occupied Bandwidth (2.1049) 2 Occupied Bandwidth Emission Limits (24.238) 2 Spurious Emissions at Antenna Terminal (2.1051) 2 Emission Designator (2.202) 2 Field Strength of Spurious Radiation (2.1053) 3 Frequency Stability / Temperature Variation (24.235) 4 3.1 TEST DATA 5 Effective Isotropic Radiated Power Output (24.232(b)) 5 Field Strength of Spurious Radiation (2.1053) 6-8 Frequency Stability (24.235) 9 4.1 LIST OF TEST EQUIPMENT 10 5.1 CONCLUSION 11 CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 1 Single-Mode PCS CDMA Phone (1851.25-1908.75 MHz) APPLICANT: WITHUS IT CO., LTD. 2F. DongNam Bldg. 448-16 Shingil-5Dong, YongDungPo-Ku, Seoul, Korea MEASUREMENT REPORT - FCC PART 24 1.1 SCOPE Measurement and determination of electromagnetic emissions (EME) from radio frequency devices for compliance with the technical rules and regulations of the Federal Communications Commission. 1.2 GENERAL INFORMATION - §2.1033(a) FCC ID POQWPE-2200 Model(s) WPE-2200 EUT Type Single-Mode PCS CDMA Phone Classification Licensed Portable Transmitter Held to Ear (PCE) Rule Part(s) §24(E), §2 Max. RF Output Power 0.463 Watts (EIRP) Tx Freq. Range 1851.25 - 1908.75 MHz Rx Freq. Range 1931.25 - 1988.75 MHz Frequency Tolerance ±± 150 Hz Emission Designator 1M25F9W Modulation PCS CDMA Battery Type(s) 3.7V 950mA/h Lithium Ion Antenna Type Retractable Whip (1/4λλ) CELLTECH RESEARCH INC. Test Report S/N: 111601-183POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 24 Certification _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWPE-2200 2 Single-Mode PCS CDMA Phone (1851.25-1908.75 MHz) 2.1 MEASUREMENT PROCEDURES 2.2 RF OUTPUT POWER MEASUREMENT - §2.1046 The conducted power was measured using a Gigatronics 8650A Universal Power Meter in modulated average power mode. An offset value in dB was entered into the power meter to correct for the losses of the attenuator and cable installed before the sensor input. The transmitter terminal was coupled to the power meter and the EUT was placed into test mode via keypad access at a full data rate in the “always up” power control mode. All subsequent tests were performed using the same tune up procedures. 2.3 OCCUPIED BANDWIDTH EMISSION LIMITS - §24.238 The antenna output terminal of the EUT was connected to the input of a 50Ω spectrum analyzer through a matched 30dB attenuator. The radio transmitter was operating at maximum output power. 100% of the in-band modulation was below the specified mask per §24.238. Specified Limits: (a) On any frequency removed from the assigned carrier frequency by more than 20kHz, up to and including 45kHz, the sideband was at least 26dB below the carrier. (b) On any frequency removed from the assigned carrier frequency by more than 45kHz, up to and including 90kHz, the sideband was at least 45dB below the carrier. (c) On any frequency removed from the assigned carrier frequency by more than 90kHz, up to the first multiple of the carrier frequency, the sideband was at least 60dB below the carrier of 40 + log 10 (mean power output in Watts) dB, whichever was the smaller attenuation. 2.4 SPURIOUS EMISSIONS AT ANTENNA TERMINAL - §2.1051 The level of the carrier and the various conducted spurious frequencies were measured by means of a calibrated spectrum analyze…

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