Q8R-73201X27Transmitter for Radio Controlled Toy

Craft House Corporation 5570 Enterprise Blvd., Toledo, OH 43612, USA Date: May 26, 2006 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Sections 0.457 and 0.459 pertaining to confidential material. Craft House Corporation would like the following documents regarding this submission for FCC ID: Q8R-73201X27 to be kept confidential. (1) Detailed circuit schematic of unit under test (2) Parts list The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Sincerely, Craft House Corporation Matthew Thrasher Product Manager

REPORT NO.: 06031648 DATE: 24 March, 2006 Page 17 of 19 APPENDIX c Photos of EUT Front View of the product Rear View of the product Component Side View Copper Side View

REPORT NO.: 06031648 DATE: 24 March, 2006 Page 17 of 19 APPENDIX c Photos of EUT Front View of the product Rear View of the product Component Side View Copper Side View

Application No. : 06031648 Date : 2006-05-26 FCC ID : Q8R-73201X27 Circuit Description U1 is a modulation encoder, which provided pulse modulation signal to Q1 (buffer amplifier) and transmit enable signal to Q3 (power switch of Q2 OSC). The 27.14 MHz crystal oscillator drives the base of Q2 the oscillator. The output of Q1 has the matching network consisting of L1 , L2 and C1 and C2 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. U1 is also provided three diffident channel codes, which was selected with SW1. (The receiver must switch to a match code for operation) Antenna, Ground and Power Source The antenna consists of a 47cm 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 9Volt (“6F22” size battery x 1) primary battery. Operation Description The transmitter is a toy car operating at 27.14 MHz band. The transmitter is powered by a 9Vd.c. battery (6F22) and the transmitting frequency is crystal controlled. There are three joysticks to control the forward reverse motor, the bound motor and director of movement. The operation is achieved by different combinations of form pulse modulating signal on the 27.14 MHz carrier frequency. Remarks: The transmitter is a three joysticks transmitter. The EUT continues to transmit while joystick is being pressed. It is Three Channel Pulse transmitter, Modulation by IC; and type is Pulse modulation.

GLOBAL TESTING & CERTIFICATION CENTRE LTD. FCC TEST REPORT Application No.: 06031648 (27MHz,Tx) Rm09, 5/F Wah Wai Ind Ctr, 38-40 Au Pui Wan Street, Fotan Shatin, N.T., Hong Kong Tel: [852] 23200326 Fax: [852] 23206287 REPORT NO.: 06031648 DATE: 24 March, 2006 Page 2 of 19 TABLE OF CONTENTS Cover Sheet --------------------------- p.1 Table of Contents --------------------------- p.2 General Details --------------------------- p.3 ~ p.4 Summary of Test Results --------------------------- p.5 Radiation Emission Test --------------------------- p.6 ~ p.10 Conducted Emission Test --------------------------- p.11 Bandwidth Measurement --------------------------- p.12 ~ p.13 Appendix A List of Measurement Equipment --------------------------- p.14 Appendix B Duty Cycle correction During 100msec --------------------------- p.15 ~ p.16 Appendix C Test Sample (Photos) --------------------------- p.17 ~ p.19 REPORT NO.: 06031648 DATE: 24 March, 2006 Page 3 of 19 APPLICANT: Craft House Corporation ADDRESS: 5570 Enterprise Blvd., Toledo, OH 43612, USA DATE OF RECEIVED: 13 March, 2006 DATE OF TESTING: 13 March, 2006 to 24 March,2006 DESCRIPTION OF SAMPLE: Product: 1/18 Radio Control Hopper – Tri band Brand Name: Lindberg Model No.: 73201X FCC ID: Q8R-73201X27 Input Voltage: DC9V (6F22) Description of EUT Operation The Equipment Under Test (EUT) is a Craft House International, 1/18 Radio Control. The transmitter is a 3 joystick transmitter. The EUT continues to Transmit while joystick is being pressed, Modulation by IC. And type is pulse modulation. INVESTIGATION REQUESTED: FCC PART 15 SUBPART C TEST RESULTS: See attached sheets CONCLUSIONS: The submitted product 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 page 5 in this Test report. REPORT NO.: 06031648 DATE: 24 March, 2006 Page 4 of 19 General Details Test Laboratory GLOBAL TESTING & CERTIFICATION CENTRE LTD. EMC Laboratory Rm09,5/F Wah Wai Ind. Ctr, 38-40 Au Pui Wan Street, Fotan Shatin, N.T., Hong Kong Telephone: Fax: 852 2320 0326 852 2320 6287 Applicant Details Applicant Craft House Corporation 5570 Enterprise Blvd., Toledo, OH 43612, USA Manufacturer Kentoys Limited Room 3-6, 23/F, Grandtech Centre, 8 On Ping Street, Siu Lek Yuen, Shatin, N.T., Hong Kong REPORT NO.: 06031648 DATE: 24 March, 2006 Page 5 of 19 Technical Details 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. Test Standards and Results Summary Tables EMISSION Results Summary Test Result Test Condition Test Requirement Test Method Pass Failed N/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.227 ANSI C63.4:2003 Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209 ANSI C63.4:2003 Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:2003 Note: N/A – Not Applicable REPORT NO.: 06031648 DATE: 24 March, 2006 Page 6 of 19 Test Results Emission Radiation Emission Measurement (30MHz to 1GHz) Setup diagram: 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 GTC with a metal ground plane filed with the FCC pursuant to section 2.948 of the FCC rules. With Registration Number:493655 EUT Computer Test Receiver Printer out 3 Meter Cable Data Transmission Ground Plane Turn Table REPORT NO.: 06031648 DATE: 24 March, 2006 Page 7 of 19 Radiation Emissions Measurement Appl. : Craft House Corporation Model: 73201X Operation: TX mode Test Requirement: FCC 47CFR 15.227 Test Method: ANSI C63.4:2003 Test Date: 2006-03-15 Limits for Field Strength of Fundamental Emissions : Frequency Range of Fundamental Field Strength of Fundamental Emission Field Strength of Fundamental Emission [Peak] [Average] [MHz] [μV/m] [μV/m] 26.96-27.28 100,000 10,000 Results: Field Strength of Fundamental Emissions Peak Value Frequency Code Measured Level @3m Correction Factor Field Strength Field Strength Limit @3m E-Field Polarity MHz dBμV dB/m dBμV/m μV/m μV/m 27.145 A 51 19.2 70.2 3,235.9 100,000 Vertical 27.145 B 50 19.2 69.2 2,884.0 100,000 Vertical 27.145 C 50 19.2 69.2 2,884.0 100,000 Vertical Field Strength of Fundamental Emissions Average Frequency Code Measured Level @3m Adjusted by Duty Cycle Correction Factor Field Strength Field Strength Limit @3m E-Field Polarity MHz dBμV dB dB/m dBμV/m μV/m μV/m 27.145 A 21.2 -29.8 19.2 40.4 104.7 10,000 Vertical 27.145 B 20.2 -29.8 19.2 39.4 93.3 10,000 Vertical 27.145 C 20.2 -29.8 19.2 39.4 93.3 10,000 Vertical 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 REPORT NO.: 06031648 DATE: 24 March, 2006 Page 8 of 19 Radiation Emissions Measurement Appl. : Craft House Corporation Model: 73201X Operation: TX mode (Code A) Test Requirement: FCC 47CFR 15.209 Test Method: ANSI C63.4:2003 Test Date: 2006-03-15 Results: Frequency Range Quasi-Peak Limits [MHz] [μV/m] 30-88 100 88-216 150 216-960 200 Above960 500 The emiss…

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