TARCDM-650DUAL BAND CDMA 1x EVDO DATA MODEM

User’s Manual (CDM-650) Version : 0.1 Date : Aug. 28, 2006 5F., Etronix BLD., 17-10 Yoido-dong Youngdungpo-gu Seoul (150-874) Korea URL: http://www.cmotech.com Regulatory Information & Safety notices (CDM-650) 2 Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divulged without prior written agreement. Regulatory Information & Safety notices (CDM-650) C-motech Co., Ltd. Proprietary and Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divul ged without prior written agreement. Regulatory Information & Safety notices (CDM-650) 3 Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divulged without prior written agreement. Revision History Table of contents 1. Regulatory Notices··································································································4 FCC RF EXPOSURE COMPLIANCE ...................................................................... 4 CAUTION................................................................................................................. 5 WARNING (EMI)...................................................................................................... 5 2. Safety and Notices···································································································6 Important Notice ...................................................................................................... 6 Safety and Hazards ................................................................................................. 6 POTENTIALLY UNSAFE AREAS ............................................................................ 7 Level Date Description 0.1 Aug. 28, 2006 Initial Release Regulatory Information & Safety notices (CDM-650) 4 Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divulged without prior written agreement. 1. Regulatory Notices This device is compliant with Parts 15, 22 and 24 of the FCC Rules. Operation of this device is subject to the following two conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesirable operations. FCC guidelines stipulate that the antenna should be more than 20cm from all persons. FCC RF EXPOSURE COMPLIANCE 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. In order to comply with FCC RF exposure requirements, the device must be operated with the CDM-650 CDMA modem organizer. The use of this device in any other type of host configuration may not comply with FCC RF exposure requirements and should be avoided. During operation, 20cm separation distance should be maintained between the antenna, whether extended or retracted, and the user’s/bystander’s body (excluding hands, wrists, feet, and ankles) to ensure FCC RF exposure compliance. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions : (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Regulatory Information & Safety notices (CDM-650) 5 Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divulged without prior written agreement. CAUTION Unauthorized modification or change not expressly approved by C-motech Co., Ltd. could void compliance with regulatory rules and thereby your authority to use this equipment. WARNING (EMI) This equipment has been tested and found to comply with the limits pursuant to Part 15, 22 & 24 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in an appropriate installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: z Reorient or relocate the receiving antenna. z Increase the separation between the equipment and the receiver. z Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. z Consult the dealer or an experienced radio/TV technician for help. Regulatory Information & Safety notices (CDM-650) 6 Confidential This document is the sole and exclusive property of C-motech. Not to be distributed or divulged without prior written agreement. 2. Safety and Notices Important Notice Because of the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors), or be totally lost. Although significant delay or losses of data are rare when wireless devices such as the CDM- 650 CDMA modem are used in a normal manner with a well-constructed network, they should be used in situations where failure to transmit or receive data could result in damage of any…

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Friday, 12 MAY 2006 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Re: C-motech Co., Ltd. FCC ID: TARCDM-650 FCC Part 22 and FCC Part 24 Certification Request for Confidentiality Dear Sir’s/Madam’s: In accordance with 0.459 and 0.459 of CFR 47, C-motech Co., Ltd. hereby requests confidentiality treatment of information accompanying this application as outlined below: Functional block diagram – CDM-650_Block diagram.pdf Partlist – CDM-650_Part list.pdf REFMAP – CDM-650_REFMAP.pdf Schmatic – CDM-650_Schmatic.pdf Operating description – CDM-650_Operating description.pdf These documents contain detailed system and equipment description and related information about the product in which C-motech Co., Ltd. considers to be proprietary, confidential, and a custom design and, otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, C-motech Co., Ltd. considers that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Mr. Byung-Young Choi Senior Research Engineer C-motech Co., Ltd. 5F., Etronix BLD., 17-10 Yoido-dong Youngdungpo-gu, Seoul, Korea (150-874) Email: [email protected] URL: http://www.cmotech.com TEL:82-2-785-5540 FAX:82-2-785-2369

Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 70 of 88 Appendix C – EUT Photographs ● Front Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 71 of 88 ● Front (with Antenna) Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 72 of 88 ● Rear Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 73 of 88 ● Right Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 74 of 88 ● Left Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 75 of 88 ● Interface Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 76 of 88 ● Antenna Port Side View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 83 of 88 ● Adapter View of EUT

Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 66 of 88 Appendix A - Labelling Requirement The sample 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. *** The following paragraph specified in the user manual. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions : (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Labelling Requirements

Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 77 of 88 ● Inside View of EUT Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 78 of 88 ● Front View of Main Board (without Module) Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 79 of 88 ● Front View of Main Board (with Module) Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 80 of 88 ● Rear View of Main Board Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 81 of 88 ● Front View of RF Module Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 82 of 88 ● Rear View of RF Module

Test Configuration of Equipment under Test The EUT has been tested under continuous transmitting mode. All tests are performed at Low channel , Middle channel, High channel. During all testings, EUT is in link mode with Base Station emulator (8960 Series 10) at Maximum power level. Frequency range has been investigated : Radiated emission has been measured from 30MHz to 12.75GHz. The field strength of spurious radiation emission for CDMA was measured at EUT stand-up position (H mode) and lie down position (E1 , E2 mode). TEST Set-up 1) Getting Started i. Power-up the laptop. ii. Connect USB port (on Module) to PC, And Confirm Power. iii. Install the Hard ware driver. iv. Execute Hyper Terminal v. Set Port (Data Modem @CDMA(5553)) and Baud rate(115200). vi. Use the AT Commander 1. at$$hdr_mode=1 : only 1X mode (cdma2000) 2. at$$hdr_mode=2 : HDR mode (1x EVDO) 2) Setting the Base station a) only 1X mode (cdma2000) i. System ID : 1234 ii. Network ID : 0 iii. Primary Call Channel : US CELLUER - 384 US PCS - 600 *Please see the Capture screen b) HDR mode (1x EVDO) i. Session Open Channel : US CELLUER – 589 US PCS – 250 *Please see the Capture screen 3) How to change Channels To change the Tx channels ( 1013, 363,777 ), Put In call Parameter channel 4) How to change Transmit Power Level To Change from the Active Bits to All up Bits (Maximum Out put Power) At Rvs Power Ctrl menu of Form the Active Bits of Base Station.

Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 1 of 88 Nemko Korea CO., Ltd. 300-2, Osan-Ri, Mohyun-Myun, Yongin-City, Gyunggi-Do, KOREA TEL:+82 31 322 2333 FAX:+82 31 322 2332 FCC EVALUATION REPORT FOR CERTIFICATION Applicant : C-motech Co., Ltd. Dates of Issue : September, 19, 2006 5F BLD. Etronix 17-10, Yoido-dong, Youngdungpo-GuTest Report No. : NK2GR178 Seoul, Korea, (Post code : 150-874) Test Site : Nemko Korea Co., Ltd. FCC ID Brand Name CONTACT PERSON Applied Standard: FCC 47 CFR Part 15 & 2 FCC 47 CFR Part 22H & Part 24E Classification: FCC Class B Device Equipment Class: Public Mobile Services EUT Type: Dual Band CDMA 1x EVDO Data Modem The device bearing the brand name and FCC ID specified above has been shown to comply with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.4-2003. I attest to the accuracy of data and 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. Tested By : S. Lee Reviewed By : H.H. Kim Engineer Manager & Chief Engineer TARCDM-650 C-motech C-motech Co., Ltd. 5F BLD. Etronix 17-10, Yoido-dong, Youngdungpo-gu, Seoul Korea(150-874) Mr. Byung-Young Choi Telephone No. : +82 2 785-5540 Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 2 of 88 TABLE OF CONTENTS 1. Scope 4 2. Introduction (Site Description) 5 3. Test Conditions & EUT Information 6 4. Measuring Instrument Calibration 8 5. Summary of Test Results 9 6. Recommendation / Conclusion 9 7. Sample Calculation 10 8. Test Equipment 11 9. Description of Test 12 9.1 Conducted Emission 12 9.2 Radiated Emission 13 9.3 Effective Radiated Power / Equivalent Isotropic Radiated Power 14 9.4 Radiated Spurious & Harmonic Emission 15 9.5 Occupied Bandwidth / 26dB Emission Bandwidth 16 9.6 Spurious and Harmonic Emissions at Antenna Terminal 17 9.7 Frequency Stability / Temperature Variation 20 9.8 Output Power Variation 21 10. Test Data 22 10.1 AC Power Conducted Emission 22 10.2 Field Strength of Radiated Emission (30MHz ~ 1GHz) 32 10.3 Effective Radiated Power (ERP) 34 10.4 Equivalent Isotropic Radiated Power (EIRP) 35 10.5 conducted Output Power 36 10.6 Occupied Bandwidth / 26Db Bandwidth 37 10.7 Radiated Spurious & Harmonic Emission (Cellular) 38 10.8 Radiated Spurious & Harmonic Emission (US PCS) 40 10.9 Frequency Stability / Temperature Variation (Cellular) 42 10.10 Frequency Stability / Temperature Variation (US PCS) 44 Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 3 of 88 10.11 Maximum Permissible Exposure 46 11. Test Plots (Cellular) 48 12. Test Plots (US PCS) 58 Appendix A: Labelling Requirement 66 Appendix B: Photographs of Test Set-up 67 Appendix C: EUT Photographs 70 Appendix D: Schematic Diagram 84 Appendix E: Block Diagram 85 Appendix F: USER’S Manual 86 Appendix G: Operational Description 87 Appendix H: Turn up Procedure 88 Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 4 of 88 1. Scope Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission under FCC Part 15 & Part 22 & 24. Responsible Party : Contact Person : Manufacturer : C-motech Co., Ltd. Mr. Byung-Young Choi Tel No. : +82 2 785 5540 C-motech Co., Ltd. 5F BLD. Etronix 17-10, Yoido-dog, Youngdungpo-gu, Seoul Korea(150-874) z FCC ID: TARCDM-650 z Model: CDM-650 z Brand Name: C-motech z EUT Type: Dual Band CDMA 1x EVDO Data Modem z Electric Rating: Input : AC100~240 Output : dc12V 3.5A z Port / Connector: USB, Serial, SMA Antenna Connector z Equipment Class: z Classification: z Applied Standard: z Test Procedure(s): z Dates of Test: z Place of Tests: z Test Report No.: Public Mobile Service FCC Class B FCC 47 CFR Part 15 & 2 FCC 47 CFR Part 22H &24E ANSI C63.4 (2003), DA 02-2138(2002) September 01, 2006 to September 18, 2006 Nemko Korea Co., Ltd. NK2GR178 Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 5 of 88 2. Introduction (Site Description) The measurement procedure described in American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ANSI C63.4-2003) was used in determining radiated and conducted emissions emanating from C-motech Co., Ltd. FCC ID : TARCDM-650 These measurement tests were conducted at Nemko Korea Co., Ltd. The site address is 300-2, Osan-Ri, Mohyun-Myun, Yongin-City, GyungGi-Do, KOREA The area of Nemko Korea Corporation Ltd. Test Site is located in a mountain area at 80 kilometers (48 miles) southeast and Incheon International Airport (Incheon Airport), 30 kilometers (18miles) south-southeast from central Seoul. It is located in the valley surrounded by mountains in all directions where ambient radio signal conditions are quiet and a favorable area to measure the radio frequency interference on open field test site for the computing and ISM devices manufactures. The detailed description of the measurement facility was found to be in compliance with the requirements of §2.948 according to ANSI C63.4 2003. Fig. 1. The map above shows the Seoul in Korea vicinity area. The map also shows Nemko Korea Corporation Ltd. and Incheon Airport. Nemko Korea Co., Ltd. 300-2, Osan-Ri, Mohyun-Myun, Yongin- City GyungGi-Do,KOREA 449-852 Tel)+82-31-322-2333 Fax)+82-31-322-2332 Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 6 of 88 3. Test Conditions & EUT Information Operating During Test The EUT was tested at the lowest channel, middle channel and the highest channel with the maximum RF power and all data …

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Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 67 of 88 Appendix B – Photographs of Test Set-up The Conducted Test Picture and Radiated Test Picture and show the worst-case configuration and cable placement. z Conducted Test Picture (Front) z Conducted Test Picture (Rear) Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 68 of 88 z Radiated Test Picture (Front) z Radiated Test Picture (Rear) Test Report No.: NK2GR178 C-motech Co., Ltd. FCC ID :TARCDM-650 Page 69 of 88 z Temperature Test Picture