1 2 3 4 ABCD 4 3 2 1 D CBA 1 1 1 1 EP03400.sch(49.860MHz) Title Size: Number: Date: File: Revision: Sheet of A4 APPROVALS: APPRD BY:CHKD BY:DRAWN BY: NKT 28-sep-2004 T11.5T R80.5 C112P C108P C9103 C822P L2 1.0uH Q3 C945 R722k C622P C533P L1 1.0uH Q2 C945 Y1 49.860M R6270 R5 47K C1 104 ANT S2 TS-1143HS S1 TS-1143HS S3 TH-1143HS S4 TS-1143HS R2270k B1 +4.5V + C2 100uF KSS12D03G3 LEFT 1 NC 2 GND 3 Forward 4 Backward 5 NC 6 NC 7 OUT 8 VCC 9 LED 10 OSCO 11 OSCI 12 NC 13 RIGHT 14 SCTX2B C12104 D1IN4148 C3103 C768P C1510P C1410P 1:32 49.860MHz)

External Photos

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

Operational Description

FCC ID: M8QF88849TX Circuit Description The 49.86MHz crystal oscillator drives the base of Q3 the final/buffer amplifier. The modulation provided by IC. The output of Q3 has the matching network consisting of L2 and C11 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 29cm 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 4.5 Volt (“AAA” size battery x 3) primary battery

Parts List/Tune Up Info

NK 1:32Full Function 27M Transmitter Parts List DESCRIPTION QUAN. COMPONENT NAME(S) RMARK RESISTOR 270K 1 R2 68K 1 R5 220Ω 1 R6 22K 1 R7 0.5Ω 1 R8 CAPACITOR 104 2 C1 C12 100UF/16V 1 C2 103 2 C3 C9 47P 4 C5 C6 C7 C8 82P 1 C10 12P 1 C11 8P 4 C13 C14 C15 C16 DIODE IN4148 1 D1 TRANSISTOR C945 2 Q2 Q3 CRYSTAL 27.145MHZ 1 Y1 INDUTOR 2.2UH 2 L1 L2 4.7UH 1 L3 11.5T 1 T IC SCTX2B() 1 IC Bonding EXTRA PARTS TS-1143HS 4 S1 S2 S3 S4 SS12D03G3 1 K Page: 1 of 1 -NK 1:32Full Function 49M Transmitter Parts List DESCRIPTION QUAN. COMPONENT NAME(S) REMARK RESISTOR 270K 1 R2 47K 1 R5 270Ω 1 R6 22K 1 R7 0.5Ω 1 R8 CAPACITOR 104P 2 C1 C12 100UF/16V 1 C2 103P 2 C3 C9 10P 2 C14 C15 33P 1 C5 22P 2 C6 C8 8P 1 C10 68P 1 C7 2P 1 C11 DIODE IN4148 1 D1 TRANSISTOR C945 2 Q2 Q3 CRYSTAL 49.860MHZ 1 Y1 INDUTOR 1UH 2 L1 L2 11.5T 1 T IC SCTX2B () 1 IC Bonding EXTRA PARTS TS-1143HS 4 S1 S2 S3 S4 SS12D03G3 1 K Page: 1 of 1 -NK 1:32Full Function 49M Receive Parts List DESCRIPTION QUAN. COMPONENT NAME(S) REMARK RESISTOR 1K 1 R3 1.8K 1 R1 100K 1 R2 280K 1 R10 3.3K 2 R5 R9 5.1M 1 R8 5.1K 1 R6 330Ω 2 R7 R11 180Ω 1 R12 680Ω 1 R4 CAPACITOR 103 4 C6 C10 C13 C14 104 2 C8 C16 4P 1 C1 222 1 C11 33P 1 C2 4.7UF/16V 1 C5 472 1 C4 39P 1 C3 500P 1 C9 47UF/16V 2 C12 C7 473 1 C15 TRANSISTOR 2SB624 4 Q2 Q3 Q4 Q5 2SC3192 1 Q1 INDUTOR 3.3UH 1 L1 TKL5-0550/B429 1 T1 IC SCDRX2CS 1 IC1 NK2933 2 IC2 IC3 EXTRA PARTS SS12D03G3 1 K F-13-2270/35 1 M1 U-02S-09170 1 M2 Page: 1 of 1

Test Report

香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 1 of 18 No. : HM152336 This report shall not be reproduced unless with prior written approval from the Hong Kong Standards and Testing Centre. 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). Applicant: Ngai Keung Metal & Plastic Manufactory Ltd. Room 1108-1112 Harbour Crystal Centre, 100 Granville Road, TST., East Kowloon, Hong Kong Description of Samples: Model name: 1:32 Full Function Radio Control Car Model no.: 88819 Brand name: NKOK FCC ID: M8QF88849TX Date Samples Received: 2004-08-19 Date Tested: 2004-09-01 Investigation Requested: FCC Part 15 Subpart C 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 Section 2.2 in this Test Report. Remarks: ---- K C Lee, EMC for Chief Executive 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 2 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). 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 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 3 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). 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 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 4 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). 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 Ngai Keung Metal & Plastic Manufactory Ltd. Room 1108-1112 Harbour Crystal Centre, 100 Granville Road, TST., East Kowloon, Hong Kong HKSTC Code Number for Applicant NGK002 Manufacturer Ngai Keung Metal & Plastic Manufactory Ltd. Room 1108-1112 Harbour Crystal Centre, 100 Granville Road, TST., East Kowloon, Hong Kong 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 5 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). 1.3 Equipment Under Test [EUT] Description of Sample Model Name: 1:32 Full Function Radio Control Car Manufacturer: Ngai Keung Metal & Plastic Manufactory Ltd. Brand Name: NKOK Model Number: 88819 Input Voltage: 4.5Vd.c (“AAA” size battery x 3) Additional Model Number: 88824, 88875, 88876, 88880 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is a Ngai Keung Metal & Plastic Manufactory Ltd., 1:32 Full Function Radio Control Car. The transmitter is a 4 buttons transmitter. The EUT continues to transmit while button is being pressed, Modulation by IC. and type is pulse modulation. 1.4 Date of Order 2004-08-19 1.5 Submitted Sample(s): 2 Samples per model 1.6 Test Duration 2004-09-01 1.7 Country of Origin China 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 6 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of STC: www.hkstc.org (the section “Application and Quotation”). 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 香港標準及檢定 ㆗ 心 Hong Kong Standards and Testing Centre Date : 2004-10-11 TEST REPORT Page 7 of 18 No. : HM152336 香港新界大埔工業村大宏街10號 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hk…

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Test Setup Photos

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