RU2833827MHZRadio Control For Toy Cars

NAMWAH ENTERPRISES CO., LTD. Address: Unit B1, 2/F., Cheung Lung Industrial Bldg.,10 Cheung Yee Street, Kowloon, Hong Kong Tel: (852) 27850833 Fax: (852) 23702052 Date:05,Sep.,2005 Federal Communications Commission Equipment Approval Services P. O. Box 358315 Pittsburgh. PA15251-5315 USA Dear Sirs, Re.: Letter of Appointment This is the letter of authorization to accept our appointment of The Hong Kong Standards and Testing Centre Ltd, .as agent for NAMWAH ENTERPRISES CO., LTD. Unit B1, 2/F., Cheung Lung Industrial Bldg., 10 Cheung Yee Street, Kowloon, Hong Kong to sign applications before the Commission on our behalf, to make representations to you on our behalf, and to receive and exchange data between our company and the Commission in connection with Certification of the following product of NAMWAH ENTERPRISES CO.,LTD.. Product name : Mercedes Benz SLR Mclaren Model: 8338(27MHZ) This authorization will expire one year from the date of this letter. Signature with title

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FCC ID :RU2833827MHZ Circuit Description The 27.145 MHz crystal oscillator drives the base of Q2 the final/buffer amplifier. The modulation provided by IC. The output of Q2 has the matching network consisting of C10,C11 and L3 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 44 cm 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. Operation Descriptions The transmitter is a controller for a toy car operating at 27.145 MHz band. The transmitter is powered by a 9Vdc battery (6F22) and the transmitting frequency is crystal controlled. There are two joystick to control the forward reverse motor and director of movement. The operation is achieved by different combinations of form pulse modulating signal on the 27.145MHz carrier frequency. Remarks: The transmitter is a 2 - joystick transmitter. The EUT continues to transmit while joystick is being pressed. It is pulse transmitter, modulation by IC and type is pulse modulation.

Date: 2005-09-06 TEST REPORT Page 2 of 18 No.: HM155009 CONTENT: Cover Page 1 of 18 Content Page 2-3 of 18 1.0 General Details 1.1 Test Laboratory Page 4 of 18 1.2 Applicant Details Page 4 of 18 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 5 of 18 Description of EUT operation 1.4 Date of Order Page 5 of 18 1.5 Submitted Samples Page 5 of 18 1.6 Test Duration Page 5 of 18 1.7 Country of Origin Page 5 of 18 1.8 Additional Information of EUT Page 6 of 18 2.0 Technical Details 2.1 Investigations Requested Page 7 of 18 2.2 Test Standards and Results Summary Page 7 of 18 3.0 Test Results 3.1 Emission Page 8-11 of 18 3.2 Bandwidth Measurement Page 12-13 of 18 Date: 2005-09-06 TEST REPORT Page 3 of 18 No.: HM155009 Appendix A List of Measurement Equipment Page 14 of 18 Appendix B Duty Cycle Correction During 100 msec Page 15-16 of 18 Appendix C Photographs Page 17-18 of 18 Date: 2005-09-06 TEST REPORT Page 4 of 18 No.: HM155009 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 Telephone: 852 2666 1888 Fax: 852 2664 4353 1.2 Applicant Details Applicant NAMWAH ENTERPRISES CO., LTD. Unit B1, 2/F., Cheung Lung Industrial Bldg., 10 Cheung Yee Street, Kowloon, Hong Kong HKSTC Code Number for Applicant NAE001 Manufacturer Nan Hai Xin Zhong Toys Factory Co.,Ltd. Nanhai,Guicheng Shiken Industry,Exploit District,Foshan,China Date: 2005-09-06 TEST REPORT Page 5 of 18 No.: HM155009 1.3 Equipment Under Test [EUT] Description of Sample Model Name: Mercedes Benz SLR Mclaren Manufacturer: Nan Hai Xin Zhong Toys Factory Co., Ltd. Brand Name: NEWCON Model Number: 8338(27MHZ) Input Voltage: 9Vd.c. (“6F22” size battery x 1) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is a NAMWAH ENTERPRISES CO., LTD., Mercedes Benz SLR Mclaren. The transmitter is a 2 - Joystick transmitter. The EUT continues to transmit while joystick is being pressed. Modulation by IC, and type is pulse modulation. 1.4 Date of Order 2005-08-24 1.5 Submitted Sample(s): 2 Samples per model 1.6 Test Duration 2005-09-02 1.7 Country of Origin China Date: 2005-09-06 TEST REPORT Page 6 of 18 No.: HM155009 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: 2005-09-06 TEST REPORT Page 7 of 18 No.: HM155009 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 15.227 ANSI C63.4:2003 N/A Radiated Emissions FCC 47CFR 15.209 ANSI C63.4:2003 N/A Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:2003 N/A Note: N/A - Not Applicable Date: 2005-09-06 TEST REPORT Page 8 of 18 No.: HM155009 3.0 Test Results 3.1 Emission 3.1.1 Radiated Emissions Test Requirement: FCC 47CFR 15.227 Test Method: ANSI C63.4:2003 Test Date: 2005-09-02 Mode of Operation: Tx 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: 607756. Test Setup: EUT Pre-Amplifier Distance = 3m Receiver Turn Table Computer Ground Plane Date: 2005-09-06 TEST REPORT Page 9 of 18 No.: HM155009 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] [ μ V/m] [ μ V/m] 26.96-27.28 100,000 10,000 Results: FrequencyCorrectionLimit @3mE-Field FactorPolarity MHzdB/m 27.1560.321.281.511,885.0100,000Vertical Field Strength of Fundamental Emissions Peak Value Measured Level @3m Field Strength Field Strength FrequencyAdjusted byCorrectionLimit @3mE-Field Duty CycleFactorPolarity MHzdBdB/m 27.1556.6-3.721.277.87,762.510,000Vertical Field Strength of Fundamental Emissions Average Measured Level @3m Field Strength 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 being investigated unless a different peak emission limit is otherwise specified in the rules. Remarks: Correction Factor included Antenna Factor and Cable Attenuation. Calculated measurement uncertainty : 30MHz to 1GHz ±4.1dB Date: 2005-09-06 TEST REPORT Page 10 of 18 No.: HM155009 Limits for Radiated Emissions [FCC 47 CFR 15.209]: Frequency Range Quasi-Peak Limits [MHz] [μV/m] 30-88 100 88-216 150 216-960 200 Above960 500 The emission limits shown in the above table are based on measurement employing a CISPR quasi- peak detector and above 1000MHz are based on measurements employing an average detector. Results : FrequencyCorrectionLimit @3mE-Field FactorPolarity MHzdB/m 54.29<1.08.8<9.8<3.1100Horizontal 81.44<1.08.7<9.7<3.1100Horizontal 108.58<1.09.6<10.6<3.4150Horizontal 135.73<1.09.0<10.0<3.2150Horizontal 162.87<1.010.8<11.8<3.9150Horizontal 190.0227.…

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