POQWCE-220CDMA Single Mode Cellular Telephone

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 29, 2001 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 Attn: Bill Graff SUBJECT: Withus IT Co., Ltd. FCC ID: POQWCE-220 Dear Bill, We hereby submit the RF exposure warning page from the user's manual, which is currently being completed and will be submitted to the application immediately upon completion. If you have any questions or comments, please do not hesitate to contact me. Sincerely, Jon Hughes Project Manager Celltech Research Inc. Testing & Engineering Lab cc: Withus IT Co., Ltd. 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

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 26, 2001 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 SUBJECT: Withus IT Co., Ltd. FCC ID: POQWCE-220 FCC Part 22 Certification Gentlemen: On behalf of Withus IT Co., Ltd. is an application for Part 22 Certification of WCE-220 single-band single-mode cellular CDMA handset as follows: FCC ID: POQWCE-220 Model(s): WCE-220 Equipment Class: Licensed Non-Broadcast Transmitter Held to Ear (TNE) Equipment Type: Cellular CDMA Handset Tx Freq. Range: 824.70 – 848.31 MHz Max. RF Output Power: 0.240 Watts (ERP) Emission Designator: 1M25F9W Attached is the Authorization Letter, Confidentiality Request, ESN Affidavit, Part 22 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: Martin Perrine SUBJECT: Withus IT Co., Ltd. FCC ID: POQWCE-220 731 Confirmation No.: TC707872 Correspondence Ref. No.: 3323 Dear Martin: On behalf of Withus IT Co., Ltd., we hereby submit our response to your e-mail dated December 21, 2001 requesting additional information for the subject application. 1. Please find attached retested band edge test plots for the low and high channels showing the magnitude of the carrier at the band edges in compliance with 22.917(e). 2. Please find attached retested conducted spurious emissions test plots showing compliance with 22.917(f). 3. To accurately determine the ERP of the EUT using a substitution dipole antenna relative to an ideal dipole with 0dBd gain, two of the following three parameters must be known: incident power, reflected power, and the reflection coefficient of the substitution antenna. In the set up used to determined the ERP, a single directional coupler was used. This provided only the incident power to the dipole. The reflection coefficient of the dipole was then used and converted into transmission loss. The manufacturer also provided calibrated gain values, which correlates with the measured transmission loss. The total power therefore emitted by the dipole is the incident power plus the transmission loss relative to an ideal dipole. Please see attached list of dipole antenna gains from the manufacturer. 4. Please find attached retested occupied bandwidth test plots using video and resolution bandwidths of equal value. 5. Please see attached amendment dated December 5, 2001 and revised page 8 of the SAR report providing additional information to justify the selected probe conversion factor. 6. Please see attached amendment dated December 5, 2001. Also attached are face and body SAR test plots for the highest SAR positions/frequencies previously submitted, using 835MHz brain and muscle tissue parameters and conversion factors. 7. Please see attached letter from the applicant with additional tune-up procedure information. The submitted tune-up procedure is for a family of devices. Some models are either cellular, PCS, or both. This particular device is for the cellular band only. 8. Please see attached amendment dated December 5, 2001 showing printout of measured brain liquid dielectric parameters. Also attached is a printout and revised page 9 of the SAR report showing the measured body liquid dielectric parameters. Please note that the previously submitted measured liquid dielectric parameters on page 11 of the SAR report inadvertently stated a measurement uncertainty range. Attached is revised page 11 of the SAR report. 9. The manufacturer determined the battery voltage endpoint. When the voltage of the battery reaches 3.3 volts the device turns off. 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. 1955 Moss Court, Kelowna, B.C. Canada V1Y 9L3 Tel. 250-860-3130 •• Fax. 250-860-3110 •• e-mail: [email protected] www.celltechlabs.com December 5, 2001 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: Withus IT Co., Ltd. FCC ID: POQWCE-220 Gentlemen, We hereby submit a revision to page 9 of the SAR measurement report and new page 10 with data table showing the measured fluid electrical parameters performed on 11/19/01. If you have any questions or comments, please do not hesitate to contact me. Sincerely, Shawn McMillen General Manager Celltech Research Inc. Testing & Engineering Lab cc: Withus IT Co., Ltd. CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWCE-220 9 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EVALUATION PROCEDURES (Cont.) In order to ensure a conservative overestimation of SAR for the EUT, the following method was used. Firstly, the probe was calibrated by the system manufacturer at 900MHz and 1800MHz using simulated fluids with electrical parameters as set by OET 65 Supplement C. Prior to the SAR assessment of the EUT, the system was validated at 900MHz in the appropriate fluid to ensure system accuracy. Although the fundamental frequency of the mid channel of the EUT was approximately 835MHz, 900MHz E-field probe conversion numbers and fluid parameters were used since it provided the most accurate calibrated point within 100MHz of the EUT’s mid channel. It must also be noted that the fluid used for both 835MHz and 900MHz have the same composition and therefore the probe has been calibrated in the appropriate fluid for the transmit band of the EUT. The following table shows a comparison of the measured results for the worst- case channel of the EUT using both 835MHz and 900MHz E-field probe conversion numbers with the appropriate fluid parameters. The measured results above indicate that when 900MHz E-field probe conversion factors, with the associated fluid electrical parameters, were used in place of the system manufacturer’s recommended 835MHz conversion factors and fluid electrical parameters, that the SAR was overestimated by approximately 7%. EUT Channel Conducted Power (dBm) Conversion Number (CF) Conductivity S/m SAR Value (mW/g) SAR Delta Ä 363 24.0 900MHz CF = 6.83 0.97 1.46 363 24.0 835MHz CF = 6.91 0.90 1.36 7.4% 835MHz BRAIN TISSUE PARAMETERS Equivalent Tissue Dielectric Constant εε…

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CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EXTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EXTERNAL EUT PHOTOGRAPHS

CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848-31MHz) 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 WCE-220 FCC ID: POQWCE-220- 220 WITHUS Information & Telecommunications Co., Ltd. MADE IN KOREA

CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) INTERNAL EUT PHOTOGRAPHS

CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 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: POQWCE-220 Model(s): WCE-220 Equipment Type: Single-Mode Cellular CDMA Phone Classification: Licensed Non-Broadcast Transmitter Held to Ear (TNE) Tx Frequency Range: 824.70 - 848.31 MHz Rx Frequency Range: 869.70 - 893.31 MHz Max. RF Output Power: 0.240 Watts (ERP) FCC Rule Part(s): 2.1093; ET Docket 96.326 CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 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................................................. 8-10 7.0 SYSTEM VALIDATION.......................................................... 11 8.0 TISSUE PARAMETERS......................................................... 11 9.0 SIMULATED EQUIVALENT TISSUES...................................... 12 10.0 SAR LIMITS........................................................................ 12 11.0 SYSTEM SPECIFICATIONS.................................................... 13 12.0 SAM PHANTOM.................................................................... 14 13.0 DEVICE HOLDER................................................................. 14 14.0 PROBE SPECIFICATION....................................................... 14 15.0 TEST EQUIPMENT LIST........................................................ 15 16.0 MEASUREMENT UNCERTAINTIES........................................ 16 17.0 REFERENCES...................................................................... 17 APPENDIX A - SAR MEASUREMENT DATA........................................ 18 APPENDIX B - DIPOLE VALIDATION................................................ 19 APPENDIX C - PROBE CALIBRATION............................................... 20 APPENDIX D - SAR SENSITIVITIES.................................................... 21 APPENDIX E - SAR TEST SETUP PHOTOGRAPHS.............................. 22 CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWCE-220 1 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) 1.0 INTRODUCTION This measurement report shows that the WITHUS IT CO., LTD. Model: WCE-220 Single-Mode Cellular CDMA Phone FCC ID: POQWCE-220 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 Cellular CDMA Phone FCC ID POQWCE-220 Equipment Class Licensed Non-Broadcast Transmitter Held to Ear (TNE) Model No.(s) WCE-220 FCC Rule Part(s) § 2.1093, Docket 96-326 Application Type FCC Part 22 Certification Tx Frequency Range 824.70 - 848.31 MHz Serial No. Pre-production Unit Rx Frequency Range 869.70 - 893.31 MHz Battery Type(s) 3.6V 950mA/h Lithium-Ion Battery Modulation CDMA Antenna Type Retractable Whip (1/4λ) Max. RF Output Power 0.240 Watts (ERP) Antenna Length 113 mm CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT C…

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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 December 5, 2001 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: Withus IT Co., Ltd. FCC ID: POQWCE-220 Gentlemen, We hereby submit a revision to page 9 of the SAR measurement report and new page 10 with data table showing the measured fluid electrical parameters performed on 11/19/01. If you have any questions or comments, please do not hesitate to contact me. Sincerely, Shawn McMillen General Manager Celltech Research Inc. Testing & Engineering Lab cc: Withus IT Co., Ltd. CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWCE-220 9 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EVALUATION PROCEDURES (Cont.) In order to ensure a conservative overestimation of SAR for the EUT, the following method was used. Firstly, the probe was calibrated by the system manufacturer at 900MHz and 1800MHz using simulated fluids with electrical parameters as set by OET 65 Supplement C. Prior to the SAR assessment of the EUT, the system was validated at 900MHz in the appropriate fluid to ensure system accuracy. Although the fundamental frequency of the mid channel of the EUT was approximately 835MHz, 900MHz E-field probe conversion numbers and fluid parameters were used since it provided the most accurate calibrated point within 100MHz of the EUT’s mid channel. It must also be noted that the fluid used for both 835MHz and 900MHz have the same composition and therefore the probe has been calibrated in the appropriate fluid for the transmit band of the EUT. The following table shows a comparison of the measured results for the worst- case channel of the EUT using both 835MHz and 900MHz E-field probe conversion numbers with the appropriate fluid parameters. The measured results above indicate that when 900MHz E-field probe conversion factors, with the associated fluid electrical parameters, were used in place of the system manufacturer’s recommended 835MHz conversion factors and fluid electrical parameters, that the SAR was overestimated by approximately 7%. EUT Channel Conducted Power (dBm) Conversion Number (CF) Conductivity S/m SAR Value (mW/g) SAR Delta Ä 363 24.0 900MHz CF = 6.83 0.97 1.46 363 24.0 835MHz CF = 6.91 0.90 1.36 7.4% 835MHz BRAIN TISSUE PARAMETERS Equivalent Tissue Dielectric Constant εε r Conductivity σσ (mho/m) ρρ (Kg/m 3 ) 835MHz Brain (Target) 41.5 ±5% 0.90 ±5% 1000 835MHz Brain (Measured: 11/19/01) 42.2 ±5% 0.91 ±5% 1000 CELLTECH RESEARCH INC. Test Report S/N: 111601-180POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC SAR Evaluation _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. Withus IT Co., Ltd. FCC ID: POQWCE-220 10 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) EVALUATION PROCEDURES (Cont.) Measured Fluid Electrical Parameters (11/19/01)

CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-20, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification _________________________________________________________________________________________________________________ © 2001 Celltech Research Inc. CERTIFICATE OF COMPLIANCE FCC PART 22.901(d) 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: Licensed Non-Broadcast Transmitter Held to Ear (TNE) FCC Rule Part(s): §22.901(d), §2 FCC ID: POQWCE-220 Model(s): WCE-220 Equipment Type: Single-Mode Cellular CDMA Phone Tx Frequency Range: 824.70 - 848.31 MHz Rx Frequency Range: 869.70 - 893.31 MHz Max. RF Output Power: 0.240 Watts (ERP) Frequency Tolerance: ±± 300 Hz Emission Designator: 1M25F9W CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 22 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 RF Output Power (2.1046) 2 Occupied Bandwidth (2.1049) 2 Spurious Emissions at Antenna Terminal (2.1051) 2 Field Strength of Spurious Radiation (2.1053) 2 Emission Designator (2.202) 2 Radiated Measurement Test Setup 3 Frequency Stability / Temperature Variation (2.1055) 4 3.1 TEST DATA 5 Effective Radiated Power Output 5 Field Strength of Spurious Radiation 6-8 Frequency Stability 9 4.1 LIST OF TEST EQUIPMENT 10 5.1 CONCLUSION 11 CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 1 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) APPLICANT: WITHUS IT CO., LTD. 2F. DongNam Bldg. 448-16 Shingil-5Dong, YongDungPo-Ku, Seoul, Korea MEASUREMENT REPORT - FCC PART 22.901(d) 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 POQWCE-220 Model(s) WCE-220 EUT Type Single-Mode Cellular CDMA Phone Classification Licensed Non-Broadcast Transmitter Held to Ear (TNE) Rule Part(s) §22.901(d), §2 Max. RF Output Power 0.240 Watts (ERP) Tx Freq. Range 824.70 – 848.31 MHz Rx Freq. Range 869.70 – 893.31 MHz Frequency Tolerance ±± 300 Hz Emission Designator 1M25F9W Modulation CDMA Battery Type(s) 3.6V 950mA/h Lithium Ion Antenna Type Retractable Whip (1/4λλ) CELLTECH RESEARCH INC. Test Report S/N: 111601-179POQ 1955 Moss Court, Kelowna Dates of Tests: Nov. 19-22, 2001 B.C. Canada V1Y 9L3 FCC Part 22 Certification _________________________________________________________________________________________________________ © 2001 Celltech Research Inc. WITHUS IT CO., LTD. FCC ID: POQWCE-220 2 Single-Mode Cellular CDMA Phone (824.70-848.31MHz) 2.1 MEASUREMENT PROCEDURES 2.2 RF OUTPUT POWER - §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 - §2.1049(c) 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 §22.917. 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 a…

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