WU2SMRSRFN4Digital Radio Slave

RFN4 Wireless Shutter Release User Guide Key Features of RFN4 Powered by General AAA 1.5V battery Slim & Ergonomic wired/wireless remote control Smart release button on the receiver 16 selectable channels Exchangeable camera release cable for the receiver Ability to operate in extreme temperatures (-20°C~50°C) Channel Setting RFN4 units provide 16 individual radio frequency channels to avoid radio interference. The 16 selectable channels allow the device to work within the effective area without interfered by other channels. Ensure the transmitter and the receiver are set to the same channel. The supplied accessory mini pin help you to adjust the channel switches. Note: Both the transmitter and the receiver are set to the same channel at the factory. RFN4 RX – Set Up 1 Release Cable Connection to the Receiver Insert 2.5mm screwlock sub-mini phone jack of the camera release cable into the receiver, and then turn the phone jack to tighten. 2 Battery Installation Open the battery cover in the direction of the arrow. Install AAA battery in a right battery polarity. Follow the polarity direction indicated on the inner sticker 3 Release Cable Connection to the Camera Connect the camera release jack of this cable to the camera’s electronic shutter release input. 4 Power on / off Switch on the power of the receiver. Red LED on indicates “power on”, Red LED off indicates “power off”. 5 Wireless shooting Press the shutter button on the transmitter halfway down to focus and press it all the way down to release. Warning : -Replace a fresh battery when the LED’s on the receiver are dimmed. Weak battery may cause the receiver not to perform the Bulb shooting properly. Connect the Receiver to your camera Slide the transmitter into the hot shoe of your camera. The receiver has a clip type hot shoe. It can be attached to camera strap when the hot shoe of camera is occupied by a flash unit To Use RFN-4 Receiver Wired Normal Shooting RFN4 receiver can be used as a wired shutter release separately. Connect the receiver to the camera’s electronic shutter release input using the appropriate accessory cable. Press the triggering button on the receiver halfway to focus on the subject and press it fully to operate shutter function. NOTE – The battery is not required when the receiver is used as a separate remote release. Bulb Shooting The RFN4 supports the Bulb shooting on cameras which have a bulb mode. Please set your camera on the bulb mode. Slide forward the triggering button. You will see orange band on it. To end the bulb shooting, slide back in its original position Warning! The triggering button on the receiver should be unlocked after bulb shooting RFN4 TX –Set Up 1 Battery Installation Install AAA battery into the battery holder. Observe the polarity of battery as indicated 2 Normal Shooting Press the triggering button halfway on the transmitter unit to operate auto focus function. Press the triggering button fully to take a picture. 3 Wireless Bulb Shooting Set your camera on the bulb mode. Press the triggering button on the transmitter fully until Blue LED light off on the transmitter. When you will see the Blue/Red LED from the receiver come on, it signals the shutter is open. To end the Bulb shooting, press the triggering button shortly. 4 Battery Storage Push the sliding cover in the direction of the arrow (Fig.1) after your work to protect the shutter button Always remove the battery when the unit is not in use for a week. FCC Compliance This device complies with Part 15 of the FCC Rules. Operation is subject to the conditions that this device does not cause harmful interference, and accepts any interference received, even if it causes undesired operation. Any changes or modifications (including the antennas) made to this device that are not expressly approved by the manufacturer may void the user’s authority to operate the equipment.

부산시 사상구 낙동대로1532 (삼락동), 617-825 #53-42, Nakdongdae-ro, Sasang-gu, Busan, 617-825, Korea Tel Tel. 82-51-324-0788Fax : 82-51-301-0788Website : www.smdv.co.kr Date: June. 22, 2012 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 c.c. Compliance Certification Services Certification Division 47173 Benicia Street Fremont, CA 94538, USA To whom it may concern: I, the undersigned, hereby authorize Lab Manager Charles. Kim (or Feel. Jeong) of SGS Korea Co., Ltdand hereafter referred to as SGS Korea, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by Lab Manager Charles. Kim (or Feel. Jeong) of SGS Korea Co., Ltdon our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing SGS Korea as our agent, we still recognize that we are responsible to: a)comply with the relevant provisions of the certification program; b)make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c)make claims regarding certification only in respect of the scope for which certification has been granted; d)do not use our product certification in such a manner as to bring the Certification Division into disrepute andnot make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e)upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f)use certification only to indicate the products are certified as being in conformity with specified standards; g)endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h)ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i)keep a record of all complaints made known to the us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; j)take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k)document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Jong-Seok Kim / President

부산시 사상구 낙동대로1532 (삼락동), 617-825, #53-42, Nackdongdae-ro, Sasang-gu, Busan, 617-825, Korea Tel : 82-51-324-0788Fax : 82-51-301-0788Website : www.smdv.co.kr Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d)(2)(i) and 0.459 pertaining to confidential material. We, SMDV, would like the following documents regarding this submission for FCC ID: WU2SMRSRFN4 to bekeptconfidential. We are also hereby request Short­Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04­1705. This provision will give SMDV temporary confidentiality of commercially sensitive information prior to product release. The requested Permanent and Temporary Confidential exhibits are listed as follows: Theabovematerialcontainstradesecrets ortechnical data, whichwould customarily beguarded from competitors.We donotwantthese documents to beaccessible to thegeneral public. Sincerely Yours, Jong-Seok Kim/ President

Model : RFN4 External photos of EUT Model : RFN4 Top view of EUT Bottom view of EUT Model : RFN4 Top view of EUT Bottom view of EUT Model : RFN4 Side view of EUT

FCC Label 1. FCC Label Drawing SMDV Model : RFN4 FCC ID : WU2SMRSRFN4 Made in Korea 2. FCC Label Location Bottom side of EUT

Model : RFN4 Internal photos of EUT Model : RFN4 Top view of Main board Bottom view of Main board Model : RFN4 Micro strip(PCB) Antenna Antenna aa

Report Number: F690501/RF-RTL005634-2 Page: 2 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea INDEX Table of Contents Page 1. General information -------------------------------------------------------------------------------- 3 2. Fundamental, Spurious emission and edge band radiated emission ----------------- 6 3. Bandwidth of operation frequency--------------------------------------------------------------- 12 Report Number: F690501/RF-RTL005634-2 Page: 3 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea 1. General information 1.1 Testing laboratory SGS Korea Co., Ltd. (Gunpo Laboratory) - 413-15, Gomae-Dong Giheung-Gu, Yongin-Si, Gyeonggi-Do, South Korea. - Wireless Div. 3FL, 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea 435-040 www.ee.sgs.com/korea Telephone : +82 31 428 5700 FAX : +82 31 427 2371 1.2 Details of applicant Applicant : SMDV Address : 280-11, MORA-1, SASNG-GU, BUSAN, Korea Contact Person : Ji Young, Kim Phone No. : +82 051 324 0788 1.3. Description of EUT Kind of Product Digital Radio Slave Model Name RFN4 Serial Number N/A Power Supply DC 1.5 V Frequency Range 2 427 ㎒ ~ 2 457 ㎒ Modulation Technique GFSK Number of Channels 16 Antenna Type Micro strip(PCB) Antenna 1.4 Details of modification -N/A Report Number: F690501/RF-RTL005634-2 Page: 4 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea 1.5. Test equipment list Equipment Manufacturer Model S/N Cal Date Cal Interval Cal Due. Signal Generator R&S SMJ 100A 100882 Nov. 25, 2011 Annual Nov. 25, 2012 Spectrum Analyzer R&S FSV30 101004 Jul. 06, 2011 Annual Jul. 06, 2012 High Pass Filter Wainwright WHK3.0/18G-10SS344 Jul. 05, 2011 Annual Jul. 05, 2012 Low Pass Filter Mini circuits NLP-1200+ V9500401023-1 Aug. 22, 2011 Annual Aug. 22, 2012 DC Power Supply Agilent U8002A MY50020026Mar. 29, 2012 Annual Mar. 29, 2013 Preamplifier R & S 8447D 1726A01265Sep. 28, 2011 Annual Sep. 28, 2012 Preamplifier R & S SCU 18 10070 Aug. 10, 2011 Annual Aug. 10, 2012 Preamplifier MITEQ Inc. JS44-18004000-35-8P1546891 Jul. 04, 2012 Annual Jul. 04, 2013 Test Receiver R & S ESU40 100075 Feb. 13, 2012 Annual Feb. 13, 2013 Bilog Antenna SCHWARZBECK VULB9163 9163-437 Aug. 03, 2011 Biennial Aug. 03, 2012 Horn Antenna R&S HF906 100326 Nov. 23, 2010 Biennial Nov. 23, 2012 Horn Antenna SCHWARZBECK MESSELEKTRONIK BBHA9170 BBHA9170431May 15, 2012 Biennial May 15, 2014 Antenna Master INN-CO MA4000-EP N/A N.C.R N/A N.C.R. Turn Table INN-CO DT-3000S N/A N.C.R N/A N.C.R. Anechoic Chamber SY Corporation L × W × H (21.5 m × 13.0 m × 9.0 m) N/A N.C.R N/A N.C.R. 1.6. Support equipment Equipment Manufacturer Model name S/N - - - - Report Number: F690501/RF-RTL005634-2 Page: 5 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea 1.6. Summary of test results The EUT has been tested according to the following specifications: Applied Standard : FCC Part15, Subpart C Standard Section Test Item Result 15.209(a) 15.249(a) 15.249(d) 15.205 Fundamental, Spurious emission and edge band radiated emission Complied 1.7. Test report revision Revision Report number Description 0 F690501/RF-RTL005634 Initial 1 F690501/RF-RTL005634-1 update the Horn antenna in Test equipment list 1 F690501/RF-RTL005634-2 List the average limit Report Number: F690501/RF-RTL005634-2 Page: 6 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea 2. Fundamental, Spurious emission and edge band radiated emission 2.1. Test setup The diagram below shows the test setup that is utilized to make the measurements for emission from 30 ㎒ to 1 ㎓ Emissions. The diagram below shows the test setup that is utilized to make the measurements for emission .The spurious emissions were investigated form 1 ㎓ to the 10th harmonic of the highest fundamental frequency or 40 ㎓, whichever is lower. Report Number: F690501/RF-RTL005634-2 Page: 7 of 15 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Korea Co., Ltd. (Gunpo Laboratory) 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.ee.sgs.com/korea 2.2. Test procedures Radiated emissions from the EUT were measured according to the dictates of ANSI C63.4:2003 1. The EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 meter anechoic Chamber. The table was rotated 360 degrees …

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Test setup photos of EUT A. Photo of Field Strength & Spurious Emission Test