RXLWKHM88R/C Airplane

Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

72MH z Block Diagram for T r ansmitter 72.x MH z Filter Power Output SCM Modulate Frequency A m plifier (First Level) Frequency A m plifier (Second Level) Cry s tal Oscillate (13.x MH z) Control signal

APPENDIX C - EUT EXTERNAL PHOTOGRAPHS Chassis - Front View Chassis – Rear View

APPENDIX A - FCC ID LABELING AND LOCATION Proposed FCC ID Labeling Proposed FCC ID Location Rear View of EUT / Proposed Label Location Labeling Requirement Each equipment for which a type acceptance applications is filed on or after May 1, 1981, shall bear an identification plate or label pursuant to §2.295 (Identification of Equipment) and §2.926 (FCC identifier) In August 1996 the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless devices. Generally users manual contains a RF exposure statement to indicate compliance with FCC requirements. The users manual should also contain required information and instruction pursuant to 95.653. FCC ID: RXLWKHM88

APPENDIX C - EUT INTERNAL PHOTOGRAPHS Chassis – Cover Off View Board – Component View Board – Solder View

Power support: The transmitter is fed by 8 1.5AA battery. and the receiver use 750Mah/8.4V nidkel hydrogen battery. Antenna: The transmitter and receiver utilize different antenna. Dipole antenna for transmitter, wire line antenna for receiver. The pulse signal provided by IC(EM78P458) will modulate one carrier circuit which consists of one crystal oscillator, R25,audion (BD139) , choke and so on. on top of this, the carrier frequency(72MHz) will be transmitted in FM mode. RF(around 72MHz) signal will be received by the receiver of helicopter. And then those signal will be demodulated and transferred into digital signal which will be decoded by the above mentioned IC(EM78P458) .In result, it can control the driver machine connected. Thus ascending, descending, turn right, turn left, rotate etc, all kinds action can be done.

Component Name Resistance 33 0805 Resistance 821 0805 Resistance 822 0805 Resistance 5620805 Resistance 1840805 Resistance 103 0805 Resistance 2230805 Resistance 4730805 Resistance 154 0805 Resistance 1510805 Resistance 5610805 Resistance 563 0805 Capacitance 22 0805 Capacitance 15 0805 Capacitance 62 0805 Capacitance 1 0805 Capacitance 224 0805 Capacitance 47 0805 Capacitance 30 0805 Capacitance390805 Capacitance1010805 Capacitance20805 Capacitance180805 Capacitance 5.6 0805 Capacitance910805 Capacitance1030805 Capacitance 223 0805 Capacitance 104 0805 DynatronR250805 Dynatron85500805 Dynatron80500805 DynatronBD139Insert Dynatron C1970 Insert IC78L05Insert Transfiguration Diode V231Chip Crystal 4.0MInsert Crystal 72.xxxInsert Capacitance47UF/16VInsert Capacitance100UFInsert 4 Channel Controller -72MHz Model

Note: The test report is specially limited to the above company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the US Government. FCC PART 95 EMI MEASUREMENT AND TEST REPORT For GuangZhou Shi Walkera Technology Co., Ltd Walkera Technology Co., Ltd, Taishi Industrial Park, Yuwotou, Panyu, Guangzhou, China, 511475 FCC ID: RXLWKHM88 This Report Concerns: Original Report Equipment Type: Transmitter, R/C Airplane Test Engineer: Jerry Wang/ Ming Jing / Report Number: R0407074 Report Date: 2004-07-20 Reviewed By: Ling Zhang / Prepared By: Bay Area Compliance Laboratory Corporation 230 Commercial Street Sunnyvale, CA 94085 Tel: (408) 732-9162 Fax: (408) 732 9164 GuangZhou Shi Walkera Technology Co., Ltd FCC ID: RXLWKHM88 Report # R0407074Rpt FCC Part 95 Test Report Page 2 of 17 TABLE OF CONTENTS GENERAL INFORMATION......................................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)...............................................................................................3 OBJECTIVE.......................................................................................................................................................................................3 RELATED GRANT/SUBMISSION.....................................................................................................................................................3 TEST METHODOLOGY....................................................................................................................................................................3 TEST FACILITY................................................................................................................................................................................3 SYSTEM TEST CONFIGURATION........................................................................................................................................5 JUSTIFICATION................................................................................................................................................................................5 EUT EXERCISE SOFTWARE...........................................................................................................................................................5 SPECIAL ACCESSORIES..................................................................................................................................................................5 SCHEMATICS / BLOCK DIAGRAM.................................................................................................................................................5 EQUIPMENT MODIFICATIONS........................................................................................................................................................5 CONFIGURATION OF TEST SYSTEM..............................................................................................................................................5 TEST SETUP BLOCK DIAGRAM.....................................................................................................................................................6 REQUIREMENTS OF PROVISIONS......................................................................................................................................7 §2.1046, AND §95.639(B)(3) – RF OUTPUT POWER..........................................................................................................8 STANDARD APPLICABLE................................................................................................................................................................8 TEST PROCEDURE...........................................................................................................................................................................8 TEST EQUIPMENT............................................................................................................................................................................8 ENVIRONMENTAL CONDITIONS....................................................................................................................................................8 TEST RESULTS.................................................................................................................................................................................8 §2.1049, AND §95.633(B) - OCCUPIED BANDWIDTH OF EMISSION.......................................................................9 STANDARD APPLICABLE................................................................................................................................................................9 TEST PROCEDURE...........................................................................................................................................................................9 TEST EQUIPMENT............................................................................................................................................................................9 ENVIRONMENTAL CONDITIONS....................................................................................................................................................9 TEST RESULTS.................................................................................................................................................................................9 §2.1053 AND §15.109(A) - RADIATED SPURIOUS EMISSION...................................................................................11 STANDARD APPLICABLE.........................................................................…

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APPENDIX B - TEST SETUP PHOTOGRAPHS Radiated Emission - Front View Radiated Emission - Rear View