PJTCAR178Remote Control Toy Transmitter

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FCC ID: PJTCAR178 Circuit Description The 49.86MHz crystal oscillator drives the base of Q1 (C90119) the final/buffer amplifier. The modulation provided by Q1 and Q2 (9015C). The output of Q1 has the matching network consisting of R7 and L1 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 9 Volt (“6F22” size battery x 1) primary battery

Date: 2003-01-03 TEST REPORT Page 1 of 21 No.: HM109464 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM109464 Equipment Under Test [EUT]:49MHz RF Remote Control Car Model Number:PJTCAR168 Applicant:DongGuan ChangAn Hop Yee Toys Manufactory FCC ID :PJTCAR178 Date: 2003-01-03 TEST REPORT Page 2 of 21 No.: HM109464 CONTENT: Cover Page 1 of 21 Content Page 2-3 of 21 Conclusion Page 4 of 21 1.0 General 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: 2003-01-03 TEST REPORT Page 3 of 21 No.: HM109464 Appendix A List of Measurement Equipment Page 16 of 21 Appendix B Duty Cycle Correction During 100 msec Page 17-18 of 21 Appendix C Modification Method Page 19-21 of 21 Appendix D Photographs Page 19-21 of 21 Date: 2003-01-03 TEST REPORT Page 4 of 21 No.: HM109464 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: 2003-01-03 TEST REPORT Page 5 of 21 No.: HM109464 1.0 General 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 DONGGUAN CHANGAN HOP YEE TOYS MANUFACTORY JieKou Industrial ChangAn Street, DongGuan GuangDong Telephone:86 769 5531437 Fax:86 769 5538979 HKSTC Code Number for ApplicantDOC011 Manufacturer DONGGUAN CHANGAN HOP YEE TOYS MANUFACTORY JieKou Industrial ChangAn Street, DongGuan GuangDong Telephone:86 769 5531437 Fax:86 769 5538979 Date: 2003-01-03 TEST REPORT Page 6 of 21 No.: HM109464 1.3Equipment Under Test [EUT] Description of Sample Product:49MHz RF Remote Control Car Manufacturer:DongGuan ChangAn Hop Yee Toys Manufactory Brand Name:168GTO Model Number:PJTCAR168 Input Voltage:9Vd.c (“6F22” size battery x 1) Additional Brand Name:168 HUMMER, 168 F-150 PICK UP, 168 CHEVY SSR, 168 1970 MUSTANG, 168 CHEVY SILVERADO, 168 MUSTANG, 168 CORVETTE, 168 EVOQ 1.3.1Description of EUT Operation The Equipment Under Test(EUT) is an DongGuan ChangAn Hop Yee Toys Manufactory, 49MHz RF Remote Control Car. The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed., Modulation by Q1 & Q2. and tape is pulse modulation. 1.4Date of Order 2002-12-18 1.5Submitted Sample(s): 1 Sample per model 1.6Test Duration 2003-01-02 1.7Country of Origin China Date: 2003-01-03 TEST REPORT Page 7 of 21 No.: HM109464 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2003-01-03 TEST REPORT Page 8 of 21 No.: HM109464 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 Severit y PassFailedN/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: 2003-01-03 TEST REPORT Page 9 of 21 No.: HM109464 3.0 Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.235 Test Method:ANSI C63.4:2000 Test Date:2003-01-02 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: 2003-01-03 TEST REPORT Page 10 of 21 No.: HM109464 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 MHz dB μ V/m μ V/m 49.8653.810.063.81,548.8100,000Vertical 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 MHz dB μ V/m μ V/m 49.8649.010.059.0891.3100,00Vertical 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, corresp…

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