T4KST-5189V1REPEATER (BASE STATION)

CONFIDENTIALITY LETTER Gentlemen: This letter is to comply with Sections 0.457 and 0.459 pertaining to confidential material. Would like the following documents regarding this submission for FCC ID: T4KST-5189V1 to be kept confidential. 1. Circuit Diagram (CONF APPENDIX Circuit Diagram. PDF) 2. Block Diagram （CONF APPENDIX Block Diagram. PDF） 3. Operational Description （CONF APPENDIX Theory of Operation. PDF） 4. Parts List （CONF APPENDIX Parts List. PDF） 5. PCB Layout （CONF APPENDIX PCB Layout. PDF） 6. Turn Up Procedure (CONF APPENDIX Turn Up Procedure. PDF) The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Qixiang Electron Science & Technology Co., Ltd. Xu Ken / General Manager

Mar.20, 2008 Federal Communications Commission Authorization & Evaluation Division 7435 Oakland Mills Road Colombia, Maryland 21046 Subject: FCC ID: T4KST-5189V1 Justification Letter for Expanded Frequency Range 135-175 MHz Gentlemen; You have asked Qixiang Electron Science & Technology Co., Ltd. for justification to have the freq range 135-175 MHz appears on the face of the FCC Grant of Certification for a Part 90 Certification. This frequency range is regarded as usual & customary by United States Federal Government and its various departments, user organizations and the military to appear on the face of the equipment Grant of Certification. (1) Qixiang Electron Science & Technology Co., Ltd.’s Marketing Department plans to ensure that USA users, other than those specifically identified in this letter, not operate within bands 136-150 MHz, as controlled by the users’ FCC station license. (2) This device will not be marketed to USA users, other than those identified in the letter, namely the US Government and its various departments & military, for operation in 136-150 MHz frequency range. Sincerely, Qixiang Electron Science & Technology Co., Ltd. Xu Qinglin / General Manager

TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE

FCC ID Label Location FCC RF Warning Label

INTERNAL VIEW OF SAMPLE -1 INTERNAL VIEW OF SAMPLE -2 INTERNAL VIEW OF SAMPLE – 3 INTERNAL VIEW OF SAMPLE – 4 INTERNAL VIEW OF SAMPLE – 3 INTERNAL VIEW OF SAMPLE – 3

Mar.20, 2008 Timco Engineering, Inc. 849 NW State Road 45 P.O. Box 370 Newberry, Florida 32669 Subject: FCC ID: T4KST-5189V1 Attestation statement that the end user can’t tune the transmitter. Gentlemen; The equipment meets the requirements of the FCC Rules, Part 90.203(e) and (g), as applicable. Programming of this product’s transmit frequencies can be performed ONLY by the manufacturer or by service or maintenance personal. The operator cannot be program transmit frequencies using the equipment’s external operation controls. Qixiang Electron Science & Technology Co., Ltd. Xu QingLin / General Manager

FCC ID Label FCC RF Warning Label

RF EXPOSURE EVALUATION (FCC ID: T4KST-5189V1) Limit According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1091 RF exposure is calculated. Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (Minute) Limits for Occupational / Controlled Exposure 0.3 – 3.0 614 1.63 (100)* 6 3.0 – 30 1842/f 4.89/f (900/f)* 6 30 – 300 61.4 0.163 1.0 6 300 – 1500 / / f/300 6 1500 – 100 000 / / 5 6 Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (Minute) Limits for General population / Uncontrolled Exposure 0.3 – 3.0 614 1.63 (100)* 30 3.0 – 30 842/f 2.19/f (180/f)* 30 30 – 300 27.5 0.073 0.2 30 300 – 1500 / / f/1500 30 1500 – 100 000 / / 1.0 30 F = Frequency in MHz * = Plane-wave equivalent power density Test Data Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna Maximum peak output power at antenna input terminal: 46.81(dBm) Maximum peak output power at antenna input terminal: 45.50(W) Prediction distance: 150 (cm) Predication frequency: 155.025(MHz) Antenna Gain (Max): 3.5 (dBi) Power density at predication frequency at 150 cm: 0.180 (mW/cm²) MPE limit for controlled exposure at prediction frequency: 1.0 (mW/cm²) MPE limit for uncontrolled exposure at prediction frequency: 0.2 (mW/cm²) Test Result: Pass

FCC Part 90 TEST REPORT For Vehicle Radio Model Name: ST-5189 (135-175 MHz) Trade Name: Soontone FCC ID: T4KST-5189V1 Report No.: SZAGC013080301E6 Date of Issue: Mar.20, 2008 Prepared For Qixiang Electron Science & Technology Co., Ltd. Qixiang Building, Tangxi Industrial Zone, Luojiang District, Quanzhou 362011, Fujian Province, China Tel: 86-595-2265 6926 Fax:86-595-2265 6927 Prepared By Shenzhen Attestation of Global Compliance Science & Technology Co., Ltd Suite B11/B12, 4F, Huafeng Mall, Chuangye 2 nd Road, 25 District, Bao’an, Shenzhen Tel: 86-755-2974 2358 Fax: 86-755-2600 8484 Report No.: SZAGC013080301E6 Page 1 of 53 VERIFICATION OF COMPLIANCE Applicant: Qixiang Electron Science & Technology Co., Ltd. Qixiang Building, Tangxi Industrial Zone, Luojiang District, Quanzhou 362011, Fujian Province, China Manufacturer: Qixiang Electron Science & Technology Co., Ltd. Qixiang Building, Tangxi Industrial Zone, Luojiang District, Quanzhou 362011, Fujian Province, China Product Description: Vehicle Radio Brand Name: Soontone FCC ID: T3KST-5189V1 File Number: SZAGC013080301E6 Date of Test: Mar.05, 2007 to Mar.20, 2007 We hereby certify that: The above equipment was tested by Shenzhen Attestation of Global Compliance Science & Technology Co., Ltd. The data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C 63.4:2003 and TIA/EIA 603. :2004 The sample tested as described in this report is in compliance with the FCC Rules Part 90. The test results of this report relate only to the tested sample identified in this report. Prepared By: Tony Tian Mar.20, 2008 Checked By: Randy He Mar.20, 2008 Authorized By King Zhang Mar.20, 2008 Report No.: SZAGC013080301E6 Page 2 of 53 TABLE OF CONTENTS 1. GENERAL INFORMATION......................................................................................................... 4 1.1 PRODUCT DESCRIPTION............................................................................................................. 4 1.2 RELATED SUBMITTAL(S) / GRANT (S)......................................................................................... 5 1.3 TEST METHODOLOGY................................................................................................................. 5 1.4 TEST FACILITY.............................................................................................................................. 5 1.5 SPECIAL ACCESSORIES.............................................................................................................. 5 1.6 EQUIPMENT MODIFICATIONS..................................................................................................... 5 2. SYSTEM TEST CONFIGURATION ........................................................................................ 6 2.1 EUT CONFIGURATION.................................................................................................................. 6 2.2 EUT EXERCISE............................................................................................................................. 6 2.3 GENERAL TECHNICAL REQUIREMENTS.................................................................................... 6 2.4 CONFIGURATION OF TESTED SYSTEM.................................................................................... 6 3. SUMMARY OF TEST RESULTS ........................................................................................... 7 4. DESCRIPTION OF TEST MODES......................................................................................... 8 5. CONDUCTED LIMITS (NOT APPLICABLE)........................................................................... 9 5.1 PROVISIONS APPLICABLE........................................................................................................... 9 5.2 MEASUREMENT PROCEDURE.................................................................................................... 9 5.3 TEST SETUP BLOCK DIAGRAM................................................................................................. 10 5.4 TEST EQUIPMENT USED............................................................................................................ 10 5.5 TEST RESULT.............................................................................................................................. 11 6. FREQUENCY TOLERANCE ............................................................................................... 12 6.1 PROVISIONS APPLICABLE......................................................................................................... 12 6.2 MEASUREMENT PROCEDURE.................................................................................................. 12 6.3 TEST SETUP BLOCK DIAGRAM................................................................................................. 13 6.4 TEST EQUIPMENT USED:........................................................................................................... 13 6.5 TEST RESULT.............................................................................................................................. 13 7. EMISSION BANDWIDTH ................................................................................................... 20 7.1 PROVISIONS APPLICABLE......................................................................................................... 20 7.2 MEASUREMENT PROCEDURE.................................................................................................. 20 7.3 TEST SETUP BLOCK DIAGRAM................................................................................................. 20 7.4 MEASUREMENT EQUIPMENT USED:........................................................................................ 20 7.5 MEASUREMENT RESULT:.......................................................................................................... 21 8. UNWANTED RADIATION ......…

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MPE EVALUATION TEST REPORT For Vehicle Radio Model Name: ST-5189 (135-175 MHz) Trade Name: Soontone FCC ID: T4KST-5189V1 Report No.: SZAGC013080301E9 Date of Issue: Apr.02, 2008 Prepared For Qixiang Electron Science & Technology Co., Ltd. Qixiang Building, Tangxi Industrial Zone, Luojiang District, Quanzhou 362011, Fujian Province, China Tel: 86-595-2265 6926 Fax:86-595-2265 6927 Prepared By Shenzhen Attestation of Global Compliance Science & Technology Co., Ltd Suite B11/B12, 4F, Huafeng Mall, Chuangye 2 nd Road, 25 District, Bao’an, Shenzhen Tel: 86-755-2974 2358 Fax: 86-755-2600 8484 TABLE OF CONTENTS 1. DESCRIPTION ......................................................................................................................3 2. ANTENNA INFORMATION...................................................................................................3 3. TEST SITE.............................................................................................................................3 4. MEASUREMENT SYSTEM...................................................................................................4 5. MEASUREMENT UNCERTAINTY........................................................................................4 6. METHOD OF MEASUREMENT............................................................................................4 6.1 MPE MEASUREMENTS MADE ON TRUNK MOUNTED ANTENNAS ......................4 6.1.1 External vehicle MPE measurement .........................................................................4 6.2 MPE MEASUREMENTS MADE ON CENTER ROOF MOUNTED ANTENNAS ........5 6.3 PRESENTATION OF RESULT ....................................................................................6 8. CONCLUSION.....................................................................................................................11 1. DESCRIPTION ST-5189 Mobile Radio are Compatible, Conventional radio system operation. The operation and functions for the ST-5189 Series radios are described in this manual. ST-5189 has a compact size with a various features in range of 135 MHz ~ 175 MHz. ST-5189 has a various features shown as below. - Wideband frequency separation, - 12.5 / 25 kHz channel spacing - On / Off hook function, Talk Around - Scanning, Priority Scanning - Look Back, Scan list editing - CTCSS / CDDCS (Conventional operation), Busy channel lockout - Time-out timer 2. ANTENNA INFORMATION Whip Antenna for vehicle: 135 ~ 175 MHz, 1/4 wave 3 dBi antenna gain 3. TEST SITE The test site (WorldStandardizationCertification&TestingCo., Ltd.) used to collect the radiated data is located on the address of 1-2/F, Dachong Keji Building, No.28 of Tonggu Road, Nanshan District, Shenzhen, 518057, China The registration number is 989301. The test site is constructed and calibrated to meet the FCC requirements in documents ANSI C63.4: 2003. 4. MEASUREMENT SYSTEM - Automobile: Hyundai Verna (2000) - E-Field Survey Meter & Probe - NARDA Model EMC 20 (100kHz~3GHz) - Calibration due date: 2008-05 - Antennas - (1/4 wave 3 dBi) 5. MEASUREMENT UNCERTAINTY The information below presents an estimate of the possible errors that are associated with the measurement system. Description Error NARDA Survey Meter: ± 4% Repeatability Accuracy: ± 7% 6. METHOD OF MEASUREMENT 6.1 MPE MEASUREMENTS MADE ON TRUNK MOUNTED ANTENNAS 6.1.1 EXTERNAL VEHICLE MPE MEASUREMENT (Antenna mounted in trunk center) With the survey meter and probe, take ten (10) measurements, at the standard test distance of 60 cm to the antenna, from the back of the vehicle in a vertical line and then average the results. These measurements are taken and recorded at every twenty (20) centimeters over a range starting at twenty (20) centimeters above ground and ending at 2.0 meters. 6.1.2 INTERNAL VEHICLE MPE MEASUREMENT (Antenna mounted in trunk center) While rotating survey meter probe through 180 degrees to ensure that the highest level is found, scan the inside of the vehicle, both front and back seating areas, for the highest level in each location. After the highest level is found, scan vertically making two (2) additional measurements within an area approximately 40 cm wide (representing the width of a person) so as to have a total of three (3) measured points as indicated below that will be averaged. a) Head area b) Chest area c) Lower Trunk area 6.2 MPE MEASUREMENTS MADE ON CENTER ROOF MOUNTED ANTENNAS 6.2.1 EXTERNAL VEHICLE MPE MEASUREMENT With the survey meter and probe, take ten (10) measurements, at the standard test distance of 60 cm from the vehicle-mounted antenna, in a vertical line and then average the results. These measurements are taken and recorded at every twenty (20) centimeters over a range starting at twenty (20) centimeters above ground and ending at 2.0 meters; this would be representative of a person standing next to a vehicle during a mobile radio transmission. 6.2.2 INTERNAL VEHICLE MPE MEASUREMENT While rotating survey meter probe through 180 degrees to ensure that the highest level is found, scan the inside of the vehicle, both front and back seating areas, for the highest level in each location. After the highest level is found, scan vertically making two (2) additional measurements within an area approximately 40 cm wide (representing the width of a person) so as to have a total of three (3) measured points as indicated below that will be averaged. a) Head area b) Chest area c) Lower Trunk area 6.3 PRESENTATION OF RESULT Power Density= The maximum value of all the measure points / 2 ( The Duty Cycle of 50% was considered by deviding the maximum value by 2 and Expressed in mW/ cm^2) 7. TEST RESULT According to §1.1310 and §2.1091 RF exposure is calculated. Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (Minute) Limits for Occupational / Controlled Exposure 0.3 – 3.0 614 1.63 (100)* 6 3.0 – 30 18…

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RADIATED TEST SETUP