QKX680Remote Control Toy Transmitter

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.

PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

FCC ID: QKX680

PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

Model No. 680 Circuit Description The 49.86MHz crystal oscillator drives the base of Q2 the final/buffer amplifier. The modulation provided by IC (SLTX-2). The output of Q2 has the matching network consisting of L3 and C5 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 28cm long metal antenna. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 3 Volt (“AA” size battery x 2) primary battery

Date: 2002-08-07 TEST REPORT Page 1 of 21 No.: HM108360 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM108360 Equipment Under Test [EUT]:THOR RACING CAR Model Number:No. 680 Applicant:Golden Technology Electronic Toys Co., Ltd. FCC ID :QKX680 Date: 2002-08-07 TEST REPORT Page 2 of 21 No.: HM108360 CONTENT: Cover Page 1 of 21 Content Page 2-3 of 21 Conclusion Page 4 of 21 1.0General Details 1.1Test Laboratory Page 5 of 21 1.2Applicant Details Page 5 of 21 Applicant HKSTC Code Number for Applicant Manufacturer 1.3Equipment Under Test [EUT] Page 6 of 21 Description of EUT operation 1.4Date of Order Page 6 of 21 1.5Submitted Sample Page 6 of 21 1.6Test Duration Page 6 of 21 1.7Country of Origin Page 6 of 21 1.8 Additional Information of EUT Page 7 of 21 2.0Technical Details 2.1Investigations Requested Page 8 of 21 2.2Test Standards and Results Summary Page 8 of 21 3.0Test Results 3.1Emission Page 9-13 of 21 3.2Bandwidth Measurement Page 14-15 of 21 Date: 2002-08-07 TEST REPORT Page 3 of 21 No.: HM108360 Appendix A List of Measurement Equipment Page 16 of 21 Appendix B Modification Method Page 17 of 21 Appendix C Duty Cycle Correction During 100 msec Page 18-19 of 21 Appendix D Photographs Page 20-21 of 21 Date: 2002-08-07 TEST REPORT Page 4 of 21 No.: HM108360 CONCLUSION The submitted product was deemed to have COMPLIED after modification with the requirements of Federal Communications Commission [FCC] Rules and Regulations Part 15. The tests were performed in accordance with the standards described above and on Section 2.2 in this Test Report. Verify byPatrick Wong for Chief Executive Date: 2002-08-07 TEST REPORT Page 5 of 21 No.: HM108360 1.0General Details 1.1Test Laboratory The Hong Kong Standards and Testing Centre Ltd. EMC Laboratory 10 Dai Wang Street, Taipo Industrial Estate New Territories, Hong Kong Telephone:852 2666 1888 Fax:852 2664 4353 1.2Applicant Details Applicant GOLDEN TECHNOLOGY ELECTRONIC TOYS CO., LTD. Guangdong Chenghai City, Pumei District, Chenseng Road, China Telephone:86 754 5855288 Fax:86 754 5856188 HKSTC Code Number for ApplicantGUW001 Manufacturer GOLDEN TECHNOLOGY ELECTRONIC TOYS CO., LTD. Guangdong Chenghai City, Pumei District, Chenseng Road, China Telephone:86 754 5855288 Fax:86 754 5856188 Date: 2002-08-07 TEST REPORT Page 6 of 21 No.: HM108360 1.3Equipment Under Test [EUT] Description of Sample Product:THOR RACING CAR Manufacturer:Golden Technology Electronic Toys Co., Ltd. Brand Name:GT Model Number:No. 680 Input Voltage:3Vd.c (“AA” size battery x 2) 1.3.1Description of EUT Operation The Equipment Under Test (EUT) is an Golden Technology Electronic Toys Co., Ltd.., Thor Racing Car. The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed, Modulation by IC and tape is pulse modulation. 1.4Date of Order 2002-07-17 1.5Submitted Sample(s): 2 Samples per model 1.6Test Duration 2002-08-06 1.7Country of Origin China Date: 2002-08-07 TEST REPORT Page 7 of 21 No.: HM108360 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2002-08-07 TEST REPORT Page 8 of 21 No.: HM108360 2.0Technical Details 2.1Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:2000 for FCC Certification. 2.2Test Standards and Results Summary Tables EMISSION Results Summary Test ConditionTest RequirementTest MethodClass /Test Result SeverityPassFailedN/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.235ANSI C63.4:2000N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209ANSI C63.4:2000Class B Conducted Emissions on AC, 0.45MHz to 30MHz FCC 47CFR 15.207ANSI C63.4:2000Class B Note: N/A - Not Applicable Date: 2002-08-07 TEST REPORT Page 9 of 21 No.: HM108360 3.0Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.235 Test Method:ANSI C63.4:2000 Test Date:2002-08-06 Mode of Operation:On mode Test Method: The sample was placed 0.8m above the ground plane on the OATS *. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigate all operating modes, rotated about all 3 axis (X, Y & Z) to obtain worst position, manipulating interconnecting cables, rotating turntable, varying antenna height from 1m to 4m in both horizontal and vertical polarizations. The emissions worst-case are shown in Test Results of the following pages. *:OATS [Open Area Test Site] located at HKSTC with a metal ground plane on filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 90657. Test Setup: EUT distance = 3m Pre -Amplifier Receiver Turn Table Computer Ground plane Date: 2002-08-07 TEST REPORT Page 10 of 21 No.: HM108360 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.235]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz][μV/m][μV/m] 49.82-49.90100,00010,000 Results: FrequencyCorrectionLimit @3mAntenna FactorPolarity MHzdB μ V/m μ V/m 49.8655.810.065.81,949.8100,000Vertical dB μ V/m Field Strength μ V/m Field Strength of Fundamental Emissions Peak Value Measured Level @3m dB μ V/m Field Strength FrequencyCorrectionLimit @3mAntenna FactorPolarity MHzdB μ V/m μ V/m 49.8650.410.060.41,047.1100,00Vertical dB μ V/m Field Strength Field Strength of Fundamental Emissions Average Measured Level @3m dB μ V/m Field Strength μ V/m According to FCC 47CFR15.35, the limit on the radio frequency emissions as measured using instrumentation with a peak detector function, corresponding to 20dB above the maximum permitted average limit for the frequency being investigated unless a different peak emission limit is otherwise specified in the rules. Remarks…

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TEST SET UP PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP