QTX85293810034Remote Control Toy Transmitter

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FCC ID: QTX85293810034 Circuit Description The 49.86MHz crystal oscillator drives the base of Q1 the final/buffer amplifier. The modulation provided by IC. The output of Q1 has the matching network consisting of L1 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 27.2cm 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 3Volt (“AA” size battery x 2) primary battery

Date: 2004-04-21 TEST REPORT Page 1 of 19 No.: HM150352 This report shall not be reproduced unless with prior written approval from the Hong Kong Standards and Testing Centre. Applicant: Kong Shing Plastic Manufactory Description of Samples: Model name: 1:12 Radio Control ATV Model no.: 840 Brand name: EXCITE LTD. FCC ID: QTX85293810034 Date Samples Received: 2004-03-12 Date Tested: 2004-04-01 Investigation Requested: FCC Part 15 Subpart C Conclusions: See the attached sheets for details Remarks: ---- Patrick Wong, EMC DAR Approved Signatory Date: 2004-04-21 TEST REPORT Page 2 of 19 No.: HM150352 CONTENT: Cover Page 1 of 19 Content Page 2-3 of 19 Conclusions Page 4 of 19 1.0 General Details 1.1 Test Laboratory Page 5 of 19 1.2 Applicant Details Page 5 of 19 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 6 of 19 Description of EUT operation 1.4 Date of Order Page 6 of 19 1.5 Submitted Samples Page 6 of 19 1.6 Test Duration Page 6 of 19 1.7 Country of Origin Page 6 of 19 1.8 Additional Information of EUT Page 7 of 19 2.0 Technical Details 2.1 Investigations Requested Page 8 of 19 2.2 Test Standards and Results Summary Page 8 of 19 3.0 Test Results 3.1 Emission Page 9-13 of 19 3.2 Bandwidth Measurement Page 14-15 of 19 Date: 2004-04-21 TEST REPORT Page 3 of 19 No.: HM150352 Appendix A List of Measurement Equipment Page 16 of 19 Appendix B Duty Cycle Correction During 100 msec Page 17-18 of 19 Appendix C Photographs Page 19-19 of 19 Date: 2004-04-21 TEST REPORT Page 4 of 19 No.: HM150352 CONCLUSIONS 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. Date: 2004-04-21 TEST REPORT Page 5 of 19 No.: HM150352 1.0 General Details 1.1 Test Laboratory The Hong Kong Standards and Testing Centre Ltd. EMC Laboratory 10 Dai Wang Street, Taipo Industrial Estate New Territories, Hong Kong 1.2 Applicant Details Applicant KONG SHING PLASTIC MANUFACTORY 24/F., Flat B4, Block B, Fortune Factory Bldg., 40 Lee Chung Street, Chai Wan, Hong Kong. HKSTC Code Number for Applicant KOS002 Manufacturer KONG SHING PLASTIC MANUFACTORY Date: 2004-04-21 TEST REPORT Page 6 of 19 No.: HM150352 1.3 Equipment Under Test [EUT] Description of Sample Model Name: 1:12 Radio Control ATV Manufacturer: Kong Shing Plastic Manufactory Brand Name: EXCITE LTD. Model Number: 840 Input Voltage: 3Vd.c (“AA” size battery x 2) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is a Kong Shing Plastic Manufactory., 1:12 Radio Control ATV. The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed, Modulation by IC. and type is pulse modulation. 1.4 Date of Order 2004-03-12 1.5 Submitted Sample(s): 1 Sample per model 1.6 Test Duration 2004-04-01 1.7 Country of Origin China Date: 2004-04-21 TEST REPORT Page 7 of 19 No.: HM150352 1.8 Additional Information of EUT Submitted Not Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2004-04-21 TEST REPORT Page 8 of 19 No.: HM150352 2.0 Technical Details 2.1 Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:2003 for FCC Certification. 2.2 Test Standards and Results Summary Tables EMISSION Results Summary Test Condition Test Requirement Test Method Class / Test Result Severity Pass Failed N/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.235 ANSI C63.4:2003 N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209 ANSI C63.4:2003 Class B Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:2003 Class B Note: N/A - Not Applicable Date: 2004-04-21 TEST REPORT Page 9 of 19 No.: HM150352 3.0 Test Results 3.1 Emission 3.1.1 Radiated Emissions (30 – 1000MHz) Test Requirement: FCC 47CFR 15.109 Class A Test Method: ANSI C63.4:2003 Test Date: 2004-04-01 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, investigated all operating modes, rotated about all 3 axis (X, Y & Z) and considered typical configuration 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 filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 90657. Test Setup: EUT Pre-Amplifier Distance = 3m Receiver Turn Table Computer Ground Plane Date: 2004-04-21 TEST REPORT Page 10 of 19 No.: HM150352 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] 49.82-49.90 100,000 10,000 Results: FrequencyCorrectionLimit @3mE-Field FactorPolarity MHzdBμV/mμV/m 49.8652.310.262.51,333.5100,000Vertical Field Strength of Fundamental Emissions Peak Value Measured Level @3m Field Strength μ V/mdB μ V/m Field Strength dB μ V/m FrequencyAdjusted byCorrectionLimit @3mE-Field Duty CycleFactorPolarity MHzdBdB μ V/m μ V/m 49.8647.1-5.210.257.3732.810,000Vertical μ V/mdB μ V/m Field Strength dB μ V/m Field Strength of Fundamental Emissions Average Measured Level @3m 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 limit for the frequency …

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