M8QS3227TXRemote COntrol Toy Transmitter

LOW PASS FILTER HF OS TRANSMITTING OUTPUT MUSIC CONTROL KEY Transmitter Block Diagram MODULATION SIGNAL GENERATOR

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

FCC ID: M8QS3227TX NKOK INC. MADE IN CHINA 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.

LABEL LOCATION BOTTOM VIEW OF THE DEVICE WITH FCC ID LABEL

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

FCC ID: M8QS3227TX Circuit Description The 27.145MHz crystal oscillator drives the base of Q3 the final/buffer amplifier. The modulation provided by Q1 and Q2. The output of Q3 has the matching network consisting of L2 and C6 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 8.5cm long telescoping chrome over brass tubing. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 9 Volt (“6F22” size battery x 1) and 3Vd.c. (“AA” size battery x 2) primary battery

Date: 2002-06-01 TEST REPORT Page 1 of 20 No.: HM107864 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM107864 Equipment Under Test [EUT]:My first viper with steering wheel Model Number:80000 Applicant:Ngai Keung Metal & Plastic Manufactory Ltd. FCC ID :M8QS3227TX Date: 2002-06-01 TEST REPORT Page 2 of 20 No.: HM107864 CONTENT: Cover Page 1 of 20 Content Page 2-3 of 20 Conclusion Page 4 of 20 1.0General Details 1.1Test Laboratory Page 5 of 20 1.2Applicant Details Page 5 of 20 Applicant HKSTC Code Number for Applicant Manufacturer 1.3Equipment Under Test [EUT] Page 6 of 20 Description of EUT operation 1.4Date of Order Page 6 of 20 1.5Submitted Sample Page 6 of 20 1.6Test Duration Page 6 of 20 1.7Country of Origin Page 6 of 20 1.8 Additional Information of EUT Page 7 of 20 2.0Technical Details 2.1Investigations Requested Page 8 of 20 2.2Test Standards and Results Summary Page 8 of 20 3.0Test Results 3.1Emission Page 9-13 of 20 3.2Bandwidth Measurement Page 14-15 of 20 Date: 2002-06-01 TEST REPORT Page 3 of 20 No.: HM107864 Appendix A List of Measurement Equipment Page 16 of 20 Appendix B Duty Cycle Correction During 100 msec Page 17-18 of 20 Appendix C Photographs Page 19-20 of 20 Date: 2002-06-01 TEST REPORT Page 4 of 20 No.: HM107864 CONCLUSION The submitted product was deemed to have COMPLIED 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: 2002-06-01 TEST REPORT Page 5 of 20 No.: HM107864 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 NGAI KEUNG METAL & PLASTIC MANUFACTORY LTD. Room 614-7 Tower A, New Mandarin Plaza, 14 Science Museum Road, TST East, Kowloon, Hong Kong. Telephone:852 2311 6128 Fax:852 2301 3768 HKSTC Code Number for ApplicantNGK003 Manufacturer NGAI KEUNG METAL & PLASTIC MANUFACTORY LTD. Room 614-7 Tower A, New Mandarin Plaza, 14 Science Museum Road, TST East, Kowloon, Hong Kong. Telephone:852 2311 6128 Fax:852 2301 3768 Date: 2002-06-01 TEST REPORT Page 6 of 20 No.: HM107864 1.3Equipment Under Test [EUT] Description of Sample Product:My First Viper With Steering Wheel Manufacturer:Ngai Keung Metal & Plastic Manufactory Ltd. Brand Name:Ngai Keung Model Number:80000 Input Voltage:9Vd.c (“6F22” size battery x 1) and 3Vd.c. (“AA” size battery x 2) 1.3.1Description of EUT Operation The Equipment Under Test(EUT) is an Ngai Keung Metal & Plastic Manufactory Limited., My First Viper With Steering Wheel. The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed. It is voice transmission, Modulation by Mic. and tape is frequency modulation. 1.4Date of Order 2002-05-23 1.5Submitted Sample(s): 1 Sample per model 1.6Test Duration 2002-05-30 1.7Country of Origin China Date: 2002-06-01 TEST REPORT Page 7 of 20 No.: HM107864 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2002-06-01 TEST REPORT Page 8 of 20 No.: HM107864 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 15.227ANSI 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: 2002-06-01 TEST REPORT Page 9 of 20 No.: HM107864 3.0Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.227 Test Method:ANSI C63.4:2000 Test Date:2002-05-30 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: 2002-06-01 TEST REPORT Page 10 of 20 No.: HM107864 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.227]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz][μV/m][μV/m] 26.96-27.28100,00010,000 Results: FrequencyCorrectionLimit @3mAntenna FactorPolarity MHzdB μ V/m μ V/m 27.1521.718.239.998.9100,000Vertical dB μ V/m Field Strength Field Strength of Fundamental Emissions Peak Value Measured Level @3m dB μ V/m Field Strength μ V/m FrequencyCorrectionLimit @3mAntenna FactorPolarity MHzdB μ V/m μ V/m 27.1516.218.234.452.5100,00Vertical μ V/mdB μ V/m Field Strength Field Strength of Fundamental Emissions Average Measured Level @3m dB μ V/m Field Strength 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 li…

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