KYDM1A2RC Toy Transmitter

1 Marianne Bosley To: [email protected] Subject: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 Hi Alice, The following is a request for technical information. Please make changes and submit a new, corrected user's manual. 1. According to the User’s Manual, the user may change the frequency crystal in the EUT in order to change channels. Section 2.1043(b)(3) prohibits the user from modifying a certified transmitter and 2.1043(a) prohibits any changes to the basic frequency and stabilizing circuitry. Section 15.15 also prohibits the accessibility of controls that could be used to cause the transmitter to operate outside of the standards. Therefore, the FCC prohibits the user from changing plug in crystals to change frequencies on a transmitter. Please indicate your understanding of this requirement, and aver that such crystals will not be provided. Also, please remove the references to changing the crystal from the user’s manual. Once we have received the new manual, we can grant this device. Regards, Marianne Marianne T. Bosley EMC Administrator 410-354-3300 X 412 [email protected] Visit MET Labs for a demonstration of our new CETECOM BITE Test System at the Bluetooth Developers Conference, Booth 622, Dec. 10-12, San Jose, CA. For more information visit www.ibctelecoms.com/bluetoothdevcon . MET’S IN THE NEWS! Get the latest at: http://www.metlabs.com/pages/Sun.html?coll=bal-business-headlines

Close From: Marianne Bosley To: Marianne Bosley Cc: Subject: FW: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 DL at home already at work - email and manual Sent: 1/14/2003 10:36 AM Importance: Normal -----Original Message----- From: alice_wong [SMTP:[email protected]] Sent: Tuesday, January 14, 2003 1:26 AM To: [email protected] Cc: EED - Choy, Kitty Subject: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 Hi Marianne, Please see attached file for revised user manual, if you have any question please let me know. Thanks. Best Regards Alice ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Thursday, January 09, 2003 2:40 AM Subject: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 > > > Hi Alice, > > The following is a request for technical information. Please make changes > and submit a new, corrected user's manual. > > 1. According to the User's Manual, the user may change the frequency > crystal in the EUT in order to change channels. Section 2.1043(b)(3) > prohibits the user from modifying a certified transmitter and 2.1043(a) > prohibits any changes to the basic frequency and stabilizing circuitry. > Section 15.15 also prohibits the accessibility of controls that could be > used to cause the transmitter to operate outside of the standards. Page 1 of 2FW: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 DL at home already at ... 1/15/2003https://www.metlabs.com/exchange/forms/IPM/NOTE/read.asp?command=open&obj=000... > Therefore, the FCC prohibits the user from changing plug in crystals to > change frequencies on a transmitter. Please indicate your understanding of > this requirement, and aver that such crystals will not be provided. Also, > please remove the references to changing the crystal from the user's manual. > > Once we have received the new manual, we can grant this device. > > Regards, > Marianne > > Marianne T. Bosley > EMC Administrator > 410-354-3300 X 412 > [email protected] > > Visit MET Labs for a demonstration of our new CETECOM BITE Test System at > the Bluetooth Developers Conference, Booth 622, Dec. 10-12, San Jose, CA. > For more information visit www.ibctelecoms.com/bluetoothdevcon. > > MET'S IN THE NEWS! Get the latest at: > http://www.metlabs.com/pages/Sun.html?coll=bal-business-headlines > > > > > > > user manual.PDF Page 2 of 2FW: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 DL at home already at ... 1/15/2003https://www.metlabs.com/exchange/forms/IPM/NOTE/read.asp?command=open&obj=000...

To: [email protected] Cc: Subject: Metrak #13186 Enlsion Industries Co. FCC ID: KYDM1A2 Hello Alice, The engineer reviewed the revised manual and that is ok, however, you did not send the statement that was needed from the applicant. Once you have forwarded the below requirement, it will be granted. Any questions, let me know. RT question: 1 While the reference to changing crystals was taken out of the manual, we also asked for the applicant to confirm his understanding that providing such crystals for sale is not permitted by the FCC. Please provide such a statement. Regards, Page 1 of 1Compose Message 1/15/2003https://www.metlabs.com/exchange/forms/ipm/note/cmpMsg.asp?obj=32459&caller=1

PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT REAR VIEW OF THE PRODUCT

PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW INNER CIRCUIT BOTTOM VIEW

FCC ID: KYDM1A2 Circuit Description The 27.255MHz crystal oscillator drives the base of Q4 the final/buffer amplifier. The modulation provided by U1. The output of Q4 has the matching network consisting of L1 and C8 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 39cm 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: 2002-12-10 TEST REPORT Page 1 of 21 No.: HM109082 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.:HM109082 Equipment Under Test [EUT]:Radio Controlled Tank (Toy) Model Number:M1A2 Applicant:Enlsion Industries Co. FCC ID :KYDM1A2 Date: 2002-12-10 TEST REPORT Page 2 of 21 No.: HM109082 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: 2002-12-10 TEST REPORT Page 3 of 21 No.: HM109082 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 of 21 Appendix D Photographs Page 20-21 of 21 Date: 2002-12-10 TEST REPORT Page 4 of 21 No.: HM109082 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. Verify byPatrick Wong for Chief Executive Date: 2002-12-10 TEST REPORT Page 5 of 21 No.: HM109082 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 ENLSION INDUSTRIES CO. Unit 6, 12/F., Paramount Bldg., 12 Ka Yip Street, Chai Wan, Hong Kong Telephone:852 2558 0126 Fax:852 22898 3493 HKSTC Code Number for ApplicantENI005 Manufacturer ENLSION INDUSTRIES CO. Unit 6, 12/F., Paramount Bldg., 12 Ka Yip Street, Chai Wan, Hong Kong Telephone:852 2558 0126 Fax:852 22898 3493 Date: 2002-12-10 TEST REPORT Page 6 of 21 No.: HM109082 1.3Equipment Under Test [EUT] Description of Sample Product:Radio Controlled Tank (Toy) Manufacturer:Enlsion Industries Co. Brand Name:N/A Model Number:M1A2 Input Voltage:9Vd.c (“6F22” size battery x 1) 1.3.1Description of EUT Operation The Equipment Under Test(EUT) is an Enlsion Industries Co.., Radio Controlled Tank (Toy). The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed. Modulation by U1. and tape is pulse modulation. 1.4Date of Order 2002-10-18 1.5Submitted Sample(s): 1 Sample per model 1.6Test Duration 2002-11-12 1.7Country of Origin China Date: 2002-12-10 TEST REPORT Page 7 of 21 No.: HM109082 1.8Additional Information of EUT SubmittedNot Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2002-12-10 TEST REPORT Page 8 of 21 No.: HM109082 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 15.227ANSI 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: 2002-12-10 TEST REPORT Page 9 of 21 No.: HM109082 3.0 Test Results 3.1Emission 3.1.1Radiated Emissions Test Requirement:FCC 47CFR 15.227 Test Method:ANSI C63.4:2000 Test Date:2002-11-12 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: 2002-12-10 TEST REPORT Page 10 of 21 No.: HM109082 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] [μV/m][μV/m] 26.96-27.28100,00010,000 Results: FrequencyCorrectionLimit @3mAntenna FactorPolarity MHz dBμV/mμV/m 27.2643.122.365.41,862.1100,000Vertical dB μV/m Field Strength Field Strength of Fundamental Emissions Peak Value Measured Level @3m dBμV/m Field Strength μV/m FrequencyCorrectionLimit @3mAntenna FactorPolarity MHz dBμV/mμV/m 27.2639.722.362.01,258.9100,00Vertical μV/mdBμV/m Field Strength Field Strength of Fundamental Emissions Average Measured Level @3m dB μV/m 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: *: Adjusted by Duty Cycle = -3.48dB *:Linear interpolations Correction Factor includ…

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