XJ6TXT7HFMR4CH 2.4GHz FHSS RADIO SYSTEM

1 2 1 3 Antenna coaxial cable Bind key & Bind LED 1 2 Sc rew Loca t ion s 3 4 P reca u t ion s on u s ing t h e 2 . 4 G H z b a n d T he 2 . 4 G Hz band may be used by o t her device s, or o t her devi c es in t he immedia t e area ma y c au s e in t er f eren c e on t he same band . A lway s be f ore t akeo ff, condu ct a ben c h t e st t o ma k e s ure t he s ervo s opera t e properly . A l s o , c ondu ct c he c k s wi t h t he t ransmi tt er as di st an t as pos s ible f rom t he aircra ft. S a f e ty is be st ensured by ha v ing an a s sis t an t carr y t he air c ra ft a s f ar away a s po s sible f or c he ck s . Do no t f ly air c ra ft in t he vicini t y o f area s in whi c h wirele s s L A Ns are being u s ed . A l s o , do no t opera t e t he t ran s mi tt er an y where near c ell phones or o t her device s t ha t genera t e radio wa v e s, e t c . T hi s c an have adver s e e ff e cts su c h as shor t ening t he co v erage di st ance o f t he aircra ft. T he re s ponse speed o f t he recei v er c an be a ff e ct ed i f u s ed where mul t iple 2 . 4 G H z radio con t roller s are being used , t here f ore care f ull y c heck t he area be f ore t a k eo ff. A l s o , i f response seem s s low while f lying , land immedia t el y and st op f l y ing . O b s erve an y appli c able laws and regula t ion s on f ly zones when using t he 2 . 4 G H z radio c on t roller . Unlike frequency bands used with earlier radio controllers, reception with this 2.4 GHz radio controller is adver s el y a ff ec t ed b y large ob st ruc t ions and con c re t e or s t eel st ruc t ure s be t ween t he air c ra ft and t ran s mi tt er . A l s o , wire mesh and similar barriers can ad v er s ely a ff ec t opera t ion . K eep t hi s in mind in order t o f l y t he aircra ft s a f el y . G e n era l p reca u t ion s f o r u s e T urn t he t ran s mi tt er O N f irs t and t hen t he receiver t o f ly t he air c ra ft. W hen f inished f l y ing , t urn t he recei v er OFF first and then the transmitter. It is very dangerous to activate the components in reverse order as the servo may st ar t up inad v er t en t ly . B e f ore f l y ing t he aircra ft, c he c k t ha t t he ba tt eries t o t he t ransmi tt er and recei v er are s u ff i c ien t ly charged . P reca u t ion s f o r u se: T ra n sm i tte r T RAN S M ITTE R STI CK TE N SIO N ADJU ST M E N T T o adju st t he spring t en s ion o f t he t ran s mi tt er st i c k s y ou need t o remove t he ba c k o f t he t ran s mi tt er c a s e . F ir st remo v e t he an t enna and t he NiCd ba tt er y pa c k f rom t he t ran s mi tt er . Now remo v e t he eigh t sc rew s t ha t hold t he c a s e bac k in pla c e , f our in t he main c a s e , t wo in t he LCD bac k co v er and t wo on t he handle . O nce t he s c rew s are removed swing t he ba c k o f t he c ase away f rom t he t ran s mi tt er being care f ul o f t he t rainer plug wiring . T here are f our lo c a t ion s f or t he st i ck t ension adjus t men t sc rew s ins t alled be c au s e t he s t i c k c on t rolling t he t hro tt le is ra t che t ed and ha s no t en s ion adju st men t. T he #1 and #3 s crew s adjus t t he t ension f or t he v er t i c al mo t ion o f ea c h s t i ck. T he #2 and #4 s c rews adjus t t he t en s ion f or t he hori z on t al mo t ion o f ea c h st i ck. T o ma k e t he t ension adjus t men t u s e a small phillip s ty pe sc rewdriver t o t urn t he adju st men t sc rew s. T urning t he s c rew c loc k wise will increase t he s t i c k t en s ion , t urning i t coun t er c loc k wise will decrea s e t he t en s ion . O n c e you ha v e completed your stick adjustments, replace the case back and install the NiCd battery pack and antenna. Be c are f ul t o line t he ba tt er y charging por t pin s when repla c ing t he ba c k c ove r . Never t ouch t he t ran s mi tt er an t enna while f l y ing t he air c ra ft. Doing so ma y c au s e lo s s o f t ran s mi tt er ou t pu t, ma k ing i t impos s ible t o opera t e t he air c ra ft . Keep the antenna of the transmitter perpendicular to the ground as best possible. 1 . P reca u t ion s f o r u se: Rece i ver h a ndling a nd m oun t ing on a i rcraf t T he re c eiver ha s 2 an t enna wire s. T he t hin sec t ion a t t he t ip i s t he an t enna re c ep t ion wire , t here f ore moun t t he an t enna t o t he aircra ft wi t hou t bending t he recep t ion wire . Re c ep t ion per f ormance de c rea s e s i f t he re c ep t ion wire is ben t. 1 . T he t ransmi tt er ' s an t enna i s delica t e . Handle wi t h care . Do not press the BIND key while flying the aircraft. The radio signal is interrupted while the BIND and trainer ke y s are pre s sed . It ma y also require t ime t o res t ore t he s ignal a ft er relea s ing t he ke ys, whi c h c an be dangerous . 2 . 3. 1. 2 . 3 . 4 . 5 . 1 . 2 . WA RN I N G : A n y o t her modi f i c a t ion s made t o t he t ransmi tt er o t her t han adju st ing st i c k t en s ion will void an y and all warran t ies c overed b y A ir t ronic s I n c . Keep perpendicular to ground. Antenna reception wire F e d e r a l C o m m u n i c a t i o n C o m m i s s i o n I n t e r f e r e n c e S t a t e m e n t T h i s e q u i p m e n t h a s b e e n t e s t e d a n d f o u n d t o c o m p l y w i t h t h e l i m i t s f o r a C l a s s B d i g i t a l d e v i c e , p u r s u a n t t o P a r t 1 5 o f t h e F C C R u l e s . T h e s e l i m i t s a r e d e s i g n e d t o p r o v i d e r e a s o n a b l e p r o t e c t i o n a g a i n s t h a r m f u l i n t e r f e r e n c e i n a r e s i d e n t i a l i n s t a l l a t i o n . T h i s e q u i p m e n t g e n e r a t e s , u s e s a n d c a n r a d i a t e r a d i o f r e q u e n c y e n e r g y a n d , i f n o t i n s t a l l e d a n d u s e d i n a c c o r d a n c e w i t h t h e i n s t r u c t i o n s , m a y c a u s e h a r m f u l i n t e r f e r e n c e t o r a d i o c o m m u n i c a t i o n s . H o w e v e r , t h e r e i s n o g u a r a n t e…

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Shanghai Merit Technology Corp. No.1058 Taogan Road, Sheshan Town,Songjiang District, Shanghai, China, 201602 2010-04-28 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: XJ6TXT7HFMR. 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: Exhibit Type File Name Schematics XJ6TXT7HFMR _schematics.pdf Block Diagram XJ6TXT7HFMR _Block Diagram.pdf Operational Description XJ6TXT7HFMR _ Operational Description.pdf Parts List XJ6TXT7HFMR _ Parts List 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,

Shanghai Merit Technology Corp. No.1058 Taogan Road, Sheshan Town,Songjiang District, Shanghai, China, 201602 Tel: +86-21-57793858 Fax: +86-21-57794269 FCC ID: XJ6TXT7HFMR POWER OF ATTORNEY March 28, 2011. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Compliance Certification Service (Shenzhen) Inc. (Aven Zhou) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Compliance Certification Service (Shenzhen) Inc. (Aven Zhou) on our behalf shall have the same effect as acts of our own. This authorization expires on June 28, 2011. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, SHANGHAI MERIT TECHNOLOGY CORP., are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, SHANGHAI MERIT TECHNOLOGY CORP.

Report No: SZ110304B03-RP Page 1 / 6 TX Report No: SZ110304B03-RP Page 2 / 6 Report No: SZ110304B03-RP Page 3 / 6 Report No: SZ110304B03-RP Page 4 / 6 Report No: SZ110304B03-RP Page 5 / 6 Report No: SZ110304B03-RP Page 6 / 6

Report No: SZ110304B03-RP FCC ID: XJ6TXT7HFMR Page 1 of 41 This report shall not be reproduced except in full, without the written approval of Compliance Certification Services. FCC 47 CFR PART 15 SUBPART C TEST REPORT For 4CH 2.4GHz FHSS RADIO SYSTEM MODEL: KT-24 Brand : KYOSHO Test Report Number: SZ110304B03-RP Prepared for SHANGHAI MERIT TECHNOLOGY CORP. 1058 TAOGAN RD., SHESHAN TOWN SONGJIANG DISTRICT, SHANGHAI, CHINA Prepared by Compliance Certification Services (Shenzhen) Inc. No.10-1,Mingkeda Logistics Park, NO.18, Huanguan south Rd., Guan lan Town, Baoan District, Shenzhen China TEL: 86-755-28055000 FAX: 86-755-28055221 Issued Date: March 24, 2011 Note: This report shall not be reproduced except in full, without the written approval of Compliance Certification Services Inc. This document may be altered or revised by Compliance Certification Services Inc. personnel only, and shall be noted in the revision section of the document. The client should not use it to claim product endorsement by TAF, A2LA, NVLAP, NIST or any government agencies. The test result of this report relate only to the tested sample identified in this report. 检 测 CNAS L4818 Report No: SZ110304B03-RP FCC ID: XJ6TXT7HFMR Page 2 of 41 This report shall not be reproduced except in full, without the written approval of Compliance Certification Services. Revision History Rev. Issue No. Revisions Effect Page Revised By 00 SZ110304B03-RP Initial Issue ALL Vincent Yao Report No: SZ110304B03-RP FCC ID: XJ6TXT7HFMR Page 3 of 41 This report shall not be reproduced except in full, without the written approval of Compliance Certification Services. TABLE OF CONTENTS 1. TEST RESULT CERTIFICATION.............................................................................................. 4 2. EUT DESCRIPTION..................................................................................................................... 5 3. TEST METHODOLOGY.............................................................................................................. 6 3.1 DESCRIPTION OF TEST MODES............................................................................6 4. FACILITIES AND ACCREDITATIONS..................................................................................... 7 4.1 FACILITIES...............................................................................................................7 4.2 ACCREDITATIONS ..................................................................................................7 4.3 MEASUREMENT UNCERTAINTY............................................................................7 5. SETUP OF EQUIPMENT UNDER TEST.................................................................................. 8 5.1 SETUP CONFIGURATION OF EUT .........................................................................8 5.2 SUPPORT EQUIPMENT .........................................................................................8 6. FCC PART 15.247 REQUIREMENTS....................................................................................... 9 6.1 20DB BANDWIDTH ..................................................................................................9 6.2 PEAK POWER ........................................................................................................12 6.3 PWER POWER SPECTRAL DENSITY...................................................................14 6.4 BAND EDGES MEASUREMENT ............................................................................15 6.5 FREQUENCY SEPARATION .................................................................................21 6.6 NUMBER OF HOPPING FREQUENCY..................................................................23 6.7 TIME OF OCCUPANCY (DWELL TIME).................................................................25 6.8 SPURIOUS EMISSIONS .........................................................................................28 6.9 POWERLINE CONDUCTED EMISSIONS ..............................................................40 Report No: SZ110304B03-RP FCC ID: XJ6TXT7HFMR Page 4 of 41 This report shall not be reproduced except in full, without the written approval of Compliance Certification Services. 1. TEST RESULT CERTIFICATION Product: 4CH 2.4GHz FHSS RADIO SYSTEM Model: KT-24 Brand: KYOSHO Tested: March 4~24, 2011 Applicant: SHANGHAI MERIT TECHNOLOGY CORP. 1058 TAOGAN RD., SHESHAN TOWN SONGJIANG DISTRICT, SHANGHAI, CHINA Manufacturer: SHANGHAI MERIT TECHNOLOGY CORP. 1058 TAOGAN RD., SHESHAN TOWN SONGJIANG DISTRICT, SHANGHAI, CHINA APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 15 Subpart C No non-compliance noted We hereby certify that: The above equipment was tested by Compliance Certification Services Inc. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4: 2003 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.207, 15.209 and 15.247. The test results of this report relate only to the tested sample EUT identified in this report. Approved by: Reviewed by: Vincent Yao Manager Compliance Certification Service Inc. Aven Zhou Supervisor of Report Dept. Compliance Certification Service Inc. Report No: SZ110304B03-RP FCC ID: XJ6TXT7HFMR Page 5 of 41 This report shall not be reproduced except in full, without the written approval of Compliance Certification Services. 2. EUT DESCRIPTION Product 4CH 2.4GHz FHSS RADIO SYSTEM Model Number KT-24 Trade Name KYOSHO Model Discrepancy N/A Identify Number SZ110304B03-RP Power Supply DC 6V (supplied from 1.5V*4cell “AA” alkaline battery) Frequency Range 2415〜2455MHz Received Date March 23, 2011 Transmit Power 2.42dBm Modulation Technique FHSS Number of Channels 41 Channels Antenna Specification Dipole Antenna :2.0dBi (Max) Temperature Range 0°C ~ +55°C Note: This sub…

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Report No.: SZ110304B03-RP Page 1 / 1 PHOTOGRAPHS OF THE TEST CONFIGURATION RADIATED EMISSION TEST TX