OZ5URCMRF100Remote Control Receiver - Superregenerative

, 82 MAR 'WB 15:21 STD ENG 839-6549 .4 OHSUNG ELECTRONICS Cow, LTD. Date : April 2 2003 I)eu Sir, I. D. J, Jung I Managter OHSUNG ELECTRNB Co., Ltd

April 4, 2003 Federal Communications Commission Authorization & Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: OHSUNG Electronics Co., Ltd. FCC ID: OZ5URCMRF100 Gentlemen: Submitted herewith, on behalf of OHSUNG Electronics Co. Ltd., is an application for Part 15 Class B certification of the following Remote Control Receiver Superregenerative. Attached are the authorization letter, measurement report (measurement data and test plots), FCC ID label and location, test setup photographs, internal and external photographs, block diagram, and the user's manual. Should you have any questions or comments concerning the above, please contact the undersigned. cc: OHSUNG Electronics Co., Ltd.

OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100

PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test Report S/N: TX.230328163.OZ5 Test Dates: APRIL 4, 2003 EUT Type: OHSUNG Remote Control Receiver – Superregenerative FCC ID: OZ5URCMRF100 Page 1 of 1 FCC ID SAMPLE LABEL & LOCATION LABELLING REQUIREMENTS PER §§ 2.925 & §§ 15.19 The Label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. (SEE NEXT PAGE) CONFIDENTIAL MRF-100 FCC ID : OZ5URCMRF100 FCC ID : OZ5URCMRF100 SCALE : 2 / 1 MADE IN KOREA MADE IN KOREA

OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100

PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test Report S/N: TX.230328163.OZ5 Test Dates: APRIL 4, 2003 EUT Type: OHSUNG Remote Control Receiver – Superregenerative FCC ID: OZ5URCMRF100 Page 1 of 15 PCTEST Engineering Laboratory, Inc. 6660-B Dobbin Road • Columbia, MD 21045 • U.S.A. TEL (410) 290-6652 • FAX (410) 290-6654 http://www.pctestlab.com CERTIFICATE OF COMPLIANCE Manufacturer: OHSUNG ELECTRONICS CO., LTD. Dates of Tests: April 4, 2003 #181 Dong Dan-Dong Test Report S/N: B.2300328163.OZ5 Gu-Mi Kyung Buk, Korea Test Site: PCTEST Lab, MD U.S.A. Attention: D.J. Jung, Manager FCC ID: OZ5URCMRF100 APPLICANT OHSUNG ELECTRONICS CO., LTD. FCC Rule Part(s): FCC Part 15 Subpart B - Remote Control Receiver FCC Classification: Communications Receiver used with Pt. 15 Transmitter (CYY) Equipment EUT Type: Remote Control Receiver - Superregenerative Trade Name: HOME THEATER MASTER Rx Frequency: 417.5 – 418.5 MHz The device bearing the trade name and model specified above has been shown to comply with the applicable technical standards as indicated in the measurement report and has been tested in accordance with the measurement procedures specified is ANSI C63.4-1992. (See Test Report if any modifications were made for compliance). These measurements were performed with no deviation from the standards. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. CE: This device has shown compliance with the conducted emissions limits in 15.107, 15.207, or 18.307 adopted under FCC 02-157 (ET Docket 98-80). The device may be marketed after July 11, 2005, and is not affected by the 15.37(j) or 18.123 transition provisions. NVLAP accreditation does not constitute any product endorsement by NVLAP or any agency of the United States Government PCTEST certifies that no party to this application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. 230114055.OZ5 PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test Report S/N: TX.230328163.OZ5 Test Dates: APRIL 4, 2003 EUT Type: OHSUNG Remote Control Receiver – Superregenerative FCC ID: OZ5URCMRF100 Page 2 of 15 TABLE OF CONTENTS ATTACHMENT A: COVER LETTER(S) ATTACHMENT B: ATTESTATION STATEMENT(S) ATTACHMENT C: TEST REPORT SCOPE 1 INTRODUCTION (SITE DESCRIPTION) 2 PRODUCTION INFORMATION 3 DESCRIPTION OF TESTS (CONDUCTED) 4 DESCRIPTION OF TESTS (RADIATED) 5 TEST EQUIPMENT 6 TEST DATA (CONDUCTED) 7 TEST DATA (RADIATED) 8 SAMPLE CALCULATIONS 9 ACCURACY OF MEASUREMENT 10 LIST OF TEST EQUIPMENT 11 TEST SOFTWARE USED 12 CONCLUSION 13 ATTACHMENT D: TEST PLOTS ATTACHMENT E: FCC ID LABEL & LOCATION ATTACHMENT F: BLOCK DIAGRAM ATTACHMENT G: TEST SETUP PHOTOGRAPHS ATTACHMENT H: EXTERNAL PHOTOS ATTACHMENT I: INTERNAL PHOTOS ATTACHMENT J: USERS MANUAL PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test Report S/N: TX.230328163.OZ5 Test Dates: APRIL 4, 2003 EUT Type: EUT Type: OHSUNG Remote Control Receiver – Superregenerative FCC ID: OZ5URCMRF100 Page 3 of 15 MEASUREMENT REPORT Scope - Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission. Company Name: OHSUNG ELECTRONICS CO., LTD. Address: #181 Dong Dan-Dong Gu-Mi Kyung Buk, Korea Attention: D.J. Jung, Manager • Trade Name(s): HOME THEATER MASTER • FCC ID: OZ5URCMRF100 • EUT Type: Remote Control Receiver - Superregenerative • FCC Rule Part(s): FCC Part 15 Subpart B - Remote Control Receiver • Classification: Communications Receiver used with Pt.15 Transmitter (CYY) • Test Procedure(s): ANSI C63.4 (1992) / EN55022: 1998 (CISPR 22) w/ A1 (2001) • Dates of Tests: April 4, 2003 • Place of Tests: PCTEST Lab, Columbia, MD U.S.A. • Test Report S/N: B.230328163.OZ5 221218032.A3L PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test Report S/N: TX.230328163.OZ5 Test Dates: APRIL 4, 2003 EUT Type: EUT Type: OHSUNG Remote Control Receiver – Superregenerative FCC ID: OZ5URCMRF100 Page 4 of 15 1.1 INTRODUCTION The measurement procedure described in American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ANSI C63.4-1992) was used in determining radiated and conducted emissions emanating from OHSUNG Remote Control Receiver FCC ID: OZ5URCMRF100. These measurement tests were conducted at PCTEST Engineering Laboratory, Inc. facility in New Concept Business Park, Guilford Industrial Park, Columbia, Maryland. The site address is 6660-B Dobbin Road, Columbia, MD 21045. The test site is one of the highest points in the Columbia area with an elevation of 390 feet above mean sea level. The site coordinates are 39° 11'15" N latitude and 76° 49'38" W longitude. The facility is 1.5 miles North of the FCC laboratory, and the ambient signal and ambient signal strength are approximately equal to those of the FCC laboratory. There are no FM or TV transmitters within 15 miles of the site. The detailed description of the measurement facility was found to be in compliance with the requirements of § 2.948 according to ANSI C63.4 on October 19, 1992. 1.2 PCTEST Location The map at right shows the location of the PCTEST Lab, its proximity to the FCC Lab, the Columbia vicinity area, the Baltimore-Washington International (BWI) airport, and the city of Baltimore, and the Washington, D.C. area. (see Figure1). Figure 1. Map of the Greater Baltimore and Metropolitan Washington, D.C. area. PCTEST PT. 15.231 REPORT FCC Certification Reviewed By: Quality Manager Test R…

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OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100 OHSUNG FCC ID: OZ5URCMRF100 EUT Photographs © 2003 PCTEST Lab. RF Receiver Model: MRF-100