KNZ27171-49RXRemote Control Toy Receiver

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FCC ID: KNZ27171-49RX 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.

FCC Label location

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N0. : HM110342 Circuit Description: The brief circuit description is listed as follows : - Q1 and associated circuit act as Super-regenerative Receiver. - RX5C and associated circuit act as IC Decoder. - Q3, Q6 and associated circuit act as M1 Motor Speed Control. - Q4, Q5, Q7, Q8, Q11, Q12, Q14 ~ Q19 and associated circuit act as Motor Driver. Antenna Used : A PVC lead wire antenna has been used.

Date: 2003-06-03 Test Report Page 1 of 16 No.: HM110342 FCC PART 15 SUBPART B TEST REPORT TEST REPORT No.:HM110342 Equipment Under Test [EUT]:Crazy Taxi (49MHz Receiver) Model Number:27171 Applicant:DSI (HK) Ltd. FCC ID:KNZ27171-49RX Date: 2003-06-03 Test Report Page 2 of 16 No.: HM110342 CONTENT: Cover Page 1 of 16 Content Page 2-3 of 16 Conclusion Page 4 of 16 1.0General Details 1.1Test Laboratory Page 5 of 16 1.2Applicant Details Page 5 of 16 Applicant HKSTC Code Number for Applicant Manufacturer 1.3Equipment Under Test [EUT] Page 6 of 16 Description of EUT operation 1.4Date of Order Page 6 of 16 1.5Submitted Sample Page 6 of 16 1.6Test Duration Page 6 of 16 1.7Country of Origin Page 6 of 16 1.8 Additional Information of EUT Page 7 of 16 2.0Technical Details 2.1Investigations Requested Page 8 of 16 2.2Test Standards and Results Summary Page 8 of 16 3.0Test Results 3.1Emission Page 9-13 of 16 Date: 2003-06-03 Test Report Page 3 of 16 No.: HM110342 Appendix A List of Measurement Equipment Page 14 of 16 Appendix B Photographs Page 15-16 of 16 Date: 2003-06-03 Test Report Page 4 of 16 No.: HM110342 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. Verified byPatrick Wong for Chief Executive Date: 2003-06-03 Test Report Page 5 of 16 No.: HM110342 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 DSI (HK) LTD. Suite 1401, New T & T Centre Harbour City, Tsimshatsui, Kowloon, Hong Kong. HKSTC Code Number for ApplicantSMU001 Manufacturer SMART UNION INDUSTRAIL LTD. 217-222 Advanced Technology Centre, 2 Choi Fat Street, Sheung Shui, N.T., Hong Kong. Date: 2003-06-03 Test Report Page 6 of 16 No.: HM110342 1.3Equipment Under Test [EUT] Description of Sample Product:Crazy Taxi (49MHz Receiver) Manufacturer:Smart Union Industrial Ltd. Brand Name:DSI Model Number:27171 Input Voltage:6Vd.c. 1.3.1Description of EUT Operation The Equipment Under Test (EUT) is a DSI (HK) Ltd., Crazy Taxi (49MHz Receiver) 1.4Date of Order 2003-04-22 1.5Submitted Sample(s): 2 samples per model 1.6Test Duration 2003-04-28 1.7Country of Origin China Date: 2003-06-03 Test Report Page 7 of 16 No.: HM110342 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC DOC Label Date: 2003-06-03 Test Report Page 8 of 16 No.: HM110342 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 Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.109ANSI C63.4:2000Class B Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.107ANSI C63.4:2000Class B Note: N/A - Not Applicable Date: 2003-06-03 Test Report Page 9 of 16 No.: HM110342 3.0Test Results 3.1Emission 3.1.1Radiated Emissions (30 – 1000MHz) Test Requirement:FCC 47CFR 15.109 Class B Test Method:ANSI C63.4:2000 Test Date:2003-04-28 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: 2003-06-03 Test Report Page 10 of 16 No.: HM110342 Limited for Radiated Emissions [FCC 47 CFR 15.109 Class B]: Frequency RangeQuasi-Peak Limits [MHz] [μV/m] 30-88100 88-216150 216-960200 Above960500 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: Receiver 0 10 20 30 40 50 60 70 30130230330430530630730830930 Level (dBμV/m) Frequency (MHz) Limit Results Date: 2003-06-03 Test Report Page 11 of 16 No.: HM110342 Results: Receiver FrequencyCorrectionLimit @3mAntenna FactorPolarity MHzdB μ V/m μ V/m 49.8616.410.026.420.9100Vertical 99.72<1.012.5<13.5<4.7150Vertical 149.58<1.09.8<10.8<3.5150Vertical 199.44<1.011.5<12.5<4.2150Vertical 249.30<1.015.9<16.9<7.0200Vertical 299.16<1.017.4<18.4<8.3200Vertical 349.02<1.017.2<18.2<8.1200Vertical 398.88<1.018.8<19.8<9.8200Vertical 448.74<1.019.7<20.7<10.8200Vertical 498.60<1.020.6<21.6<12.0200Vertical μ V/mdB μ V/m Field Strength dB μ V/m Radiated Emissions Quasi-Peak Measured Level @3m Field Strength ** For effective averaging, the bandwidth of the video filter must be smaller than the resolution bandwidth. The higher the ratio of resolution bandwidth to video bandwidth, the greater the averaging will be recorded. .Below setting for HP8572A EMI Receiver. Resolution Bandwidth =3MHz Video Bandwidth =1Hz Calculated measurement uncertainty = 30MHz to 300MHz±3.7dB 300MHz to 1GHz+3.0dB / -2.7dB Date: 2003-06-03 Test Report Page 12 of 16 No.: HM110342 3.1.1Conducted Emissions (0.15MHz to 30MHz) Test Requirement:FCC 47CFR 15.107 Test Method:ANSI C63.4:2000 Test Date:2002-04-…

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From: Greg Czumak To: '[email protected]' Cc: Subject: Application for FCC ID: KNZ27171-49RX Sent: 6/17/2003 12:16 PM Importance: Normal Hi Alice, I have completed the technical review of the referenced application. Please answer the following question, so that the review may be completed and the grant issued. Thanks! Gregory Czumak EMC Consultant MET Labs RT question: 1. Was the EUT cohered, as required by ANSI C63.4, during radiated emission testing? If not, please retest, cohering the receiver as required by C63.4, and submit new test data.

From: alice_wong [SMTP:[email protected]] To: Greg Czumak Cc: EED - Choy, Kitty; [email protected] Subject: Application for FCC ID: KNZ27171-49RX Sent: 6/17/2003 9:52 PM Importance: Normal Hi Mr. Gregory Czumak, Answer: Yes , during the test , we would use signal generator transmit signal(49.86MHz) to EUT in order to make sure EUT is function properly(receiving) and get worst reading. Thanks. Best Regards Alice > > ----- Original Message ----- > > From: <[email protected]> > > To: <[email protected]> > > Sent: Wednesday, June 18, 2003 12:16 AM > > Subject: Application for FCC ID: KNZ27171-49RX > > > > > > > Hi Alice, > > > > > > I have completed the technical review of the referenced application. > > Please > > > answer the following question, so that the review may be completed and > the > > > grant issued. > > > > > > Thanks! > > > > > > Gregory Czumak > > > EMC Consultant > > > MET Labs > > > > > > RT question: > > > > > > 1. Was the EUT cohered, as required by ANSI C63.4, during radiated > > emission > > > testing? If not, please retest, cohering the receiver as required by > > C63.4, > > > and submit new test data. >> >

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