Y9XHPIRACING001023CH 2.4GHz FHSS RADIO SYSTEM

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Hobby Products International Inc. Tel：949-753-1099 Fax：949-753-1098 E-mail：[email protected] Address：70 Icon St, Foothill Ranch, CA 92610-3000 USA FCC Confidential Authorization Date: September 23.2014 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request regarding application for certification of FCC ID: Y9XHPIRACING00102 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: ƒ Detailed Circuit Schematics of EUT--- (Long term) ƒ Block Diagram--- (Long term) ƒ Circuit Description--- (Long term) ƒ The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely Yours, Signature: Typed or Printed Name: HIROYUKI IIDA

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS EUT– Top View EUT– Bottom View EUT– Side View EUT– Side View

EXHIBIT A - FCC ID LABELING AND LOCATION FCC ID Label Proposed FCC ID Label Location The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Label Here

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS EUT – Uncover View EUT – Uncover View EUT – Main Board Top View EUT – Main Board Bottom View EUT – RF Circuit View EUT – Antenna View

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Dongguan). This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. FCC PART 15.247 TEST REPORT For Hobby Products International Inc. 70 Icon St, Foothill Ranch, CA 92610-3000 USA FCC ID: Y9XHPIRACING00102 Report Type: Original Report Product Type: 3CH 2.4GHz FHSS RADIO SYSTEM(Transmitter Unit) Test En gineer: Allen Qiao Re port Number: RSH140820052-00 Re port Date: 2014-09-19 Reviewed B y: Sula Huang RF Engineer Test Laboratory: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industrial Zone, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSH140820052-00 FCC Part 15.247 Page 2 of 35 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 TEST FACILITY ............................................................................................................................................................. 4 SYSTEM TEST CONFIGURATION .......................................................................................................................... 5 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 5 EUT EXERCISE SOFTWARE .......................................................................................................................................... 5 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 5 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 5 SUMMARY OF TEST RESULTS ............................................................................................................................... 6 FCC §15.247 (i) & §1.1307 (b) (1) & §2.1093- RF EXPOSURE ..................................................................................... 7 APPLICABLE STANDARD .............................................................................................................................................. 7 FCC §15.203 - ANTENNA REQUIREMENT ............................................................................................................. 8 APPLICABLE STANDARD .............................................................................................................................................. 8 ANTENNA CONNECTOR CONSTRUCTION ...................................................................................................................... 8 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS ............................................................................... 9 APPLICABLE STANDARD .............................................................................................................................................. 9 MEASUREMENT UNCERTAINTY .................................................................................................................................... 9 EUT SETUP .................................................................................................................................................................. 9 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 10 TEST PROCEDURE ...................................................................................................................................................... 10 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 11 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 11 TEST RESULTS SUMMARY .......................................................................................................................................... 11 TEST DATA ................................................................................................................................................................ 11 FCC §15.247(a) (1) - CHANNEL SEPARATION TEST ......................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 15 TEST PROCEDURE ...................................................................................................................................................... 15 TEST DATA ..................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emission –Front View (Below 1GHz) Radiated Emission- Front View (Above 1GHz)