WFE75238-49-RX1:24 R/C VEHICLE - TWIN PACK

49.86MHz 49.86MHz

1/24 RC Vehicle Twin Pack operation theory 49MHz 1. Function: radio control Forward, Backward, Left turn and Right turn. 2. Operation Theory: Transmitter When the receiver is turn on, and press the forward key. The TX2 pin 5 will set to low, at this monument TX2 pin 8 will send out move forward code to CR transistor and mix with 49 MHz modulation and amplifier, and then pass to LC high pass filter. Finally thought the antenna to transmit to Air. Receiver When the Antenna received the 49MHz modulation signal from the Air. The signal going to super head detection to demodulation, and then press to RX-2 pin 14 to amplifier. The amplified signal will output from RX-2 pin1 and pass to RC filter, after the this RC filter process the signal will come back to RX-2 pin3 and follow the pin3 signal to drive Motor.

TEST REPORT Report No. : AM0038540(9) Date : 2010-08-12 Page 1 of 11 FCC ID: WFE75238-49-RX This document is issued subject to CMA Testing standard TEARMS AND CONDITIONS, and shall not be reproduced except in full or with written approval by CMA Testing. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Application No. : LM010257(4) Applicant : Playmind Ltd. Rm413-415, Houston Centre, 63 Mody Road, TST. East, Kln Sample Description : One(1) submitted sample(s) stated to be 1:24 R/C Vehicle - Twin Pack of Model No. 75238 Radio Frequency : 49.860MHz Receiver Rating : 4 x 1.5V AA size batteries No. of submitted sample : Two (2) piece(s) Date Received : 2010-07-21. Test Period : 2010-08-04 to 2010-08-06. Test Requested : FCC Part 15 Certification. Test Method : 47 CFR Part 15 (10-1-09 Edition) and ANSI C63.4 – 2003. Test Result : See attached sheet(s) from page 2 to 11. Conclusion : The submitted sample was found to comply with requirement of FCC Part 15 Subpart B. For and on behalf of CMA Industrial Development Foundation Limited Authorized Signature : ____________________________________________________ Mr. Wong Lap-pong, Andrew Assistant Manager Electrical Division TEST REPORT Report No. : AM0038540(9) Date : 2010-08-12 Page 2 of 11 FCC ID: WFE75238-49-RX This document is issued subject to CMA Testing standard TEARMS AND CONDITIONS, and shall not be reproduced except in full or with written approval by CMA Testing. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com Table of Contents 1 General Information............................................................................................................................. 3 1.1 General Description ..................................................................................................................... 3 1.2 Location of the test site................................................................................................................ 4 1.3 List of measuring equipment ....................................................................................................... 5 1.4 Measurement Uncertainty............................................................................................................ 5 2 Description of the radiated emission test............................................................................................. 6 2.1 Test Procedure ............................................................................................................................. 6 2.2 Test Result ................................................................................................................................... 6 2.3 Radiated Emission Measurement Data ........................................................................................ 7 3 Description of the Line-conducted Test .............................................................................................. 8 3.1 Test Procedure ............................................................................................................................. 8 3.2 Test Result ................................................................................................................................... 8 3.3 Graph and Table of Conducted Emission Measurement Data .................................................... 8 4 Photograph ........................................................................................................................................... 9 4.1 Photographs of the Test Setup for Radiated Emission and Conducted Emission ....................... 9 4.2 Photographs of the External and Internal Configurations of the EUT ........................................ 9 5 Supplementary document .................................................................................................................. 10 5.1 Bandwidth.................................................................................................................................. 10 5.2 Duty cycle .................................................................................................................................. 10 5.3 Transmission time...................................................................................................................... 10 6 Appendices ........................................................................................................................................ 11 TEST REPORT Report No. : AM0038540(9) Date : 2010-08-12 Page 3 of 11 FCC ID: WFE75238-49-RX This document is issued subject to CMA Testing standard TEARMS AND CONDITIONS, and shall not be reproduced except in full or with written approval by CMA Testing. CMA Industrial Development Foundation Limited Room 1302, Yan Hing Centre, 9-13 Wong Chuk Yeung St.., Fo Tan, Shatin, Hong Kong. Tel: (852) 2698 8198 Fax: (852) 2695 4177 E-mail: [email protected] Web Site: http://www.cmatcl.com 1 General Information 1.1 General Description The equipment under test (EUT) is a receiver for 1:24 R/C Vehicle - Twin Pack. It operates at 49.860MHz and the oscillation of radio control is generated by a LRC circuit. The EUT is powered by 4 x 1.5V AA size batteries. When it switched "ON" and received a radio control signal, it will take the corresponding action. The brief circuit description is listed as follows: - Q1 and associated circuit act as a receiver. - IC1 and associated circuit act as a decoder. - Q2-Q7 and associated circuit act as motor M1 driver. - Q8-Q13 and associated circuit act as motor M2 driver. TEST REPORT Report No. : AM0038540(9) Date : 2010-08-12 Page 4 of 11 FCC ID: WFE75238-49-RX This docu…

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