OQXHTR2400U

October 11, 1999 Federal Communications Commission Authorization & Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT:Hung Chang Co., Ltd. FCC ID: OQXHTR2400U Gentlemen: Submitted herewith, on behalf of Hung Chang Co. Ltd., is an application for certification of the following low-power wireless transmitter: FCC ID:OQXHTR2400U MODEL:HTR2400U EQUIP. Class:Low Power Communications Transmitter (DXX) EUT Type:4-Channel 2.4GHz Wireless Audio/Video Transmitter FREQ. Range:2.410 – 2.4835 GHz Attached is the authorization letter, measurement report (measurement data and test plots), FCC ID label and location, test setup photographs, internal and external photographs, block diagram, schematic diagrams, operational description, and the user's manual. Should you have any questions or comments concerning the above, please contact the undersigned. cc:Mr. K. C. Lee R&D Manager Hung Chang Co., Ltd.

Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter

© 1999 PCTEST Lab 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)

Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter

© 1999 PCTEST Engineering Lab., Inc. PCTEST Engineering Laboratory, Inc. 6660-B Dobbin Road 6660-B Dobbin Road •• Columbia, MD 21045 Columbia, MD 21045 •• U.S.A. U.S.A. TEL (410) 290-6652 TEL (410) 290-6652 •• FAX (410) 290-6654 FAX (410) 290-6654 http://www.pctestlab.comhttp://www.pctestlab.com CERTIFICATE OF COMPLIANCE HUNG CHANG CO., LTD.Dates of Tests: October 07-08, 1999 1385-14, Juan-Dong,Test Report S/N: TX.991004548.OQX Nam-Ku, Inchon, KOREATest Site: PCTEST Lab, MD U.S.A. Attn: K. C. Lee, R&D ManagerJob No.: KES #917A FCC ID OQXHTR2400U APPLICANT HUNG CHANG CO., LTD. FCC Rule Part(s):§ 15.249 Subpart C – Intentional Radiator Classification:Low Power Communications Transmitter (DXX) EUT Type:2.4GHz Wireless Audio/Video Transmitter Freq. Range:2.410 GHz ~ 2.4835 GHz No. of Channels:4 Channel Freq.:Ch.1/2.43GHz, Ch.2/2.45GHz, Ch.3/2.47GHz, Ch.4/2.41GHz Trade Name: HUNG CHANG Model:HTR2400U This device has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified is ANSI C63.4-1992 with the following remarks (Note Codes): •• (#37) This device has shown to be in compliance with the new rules under Docket 87-389 and is not affected by Section 15.37 transition rule. 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. 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. 853(a) Lab Code 100431-0 © 1999 PCTEST Engineering Laboratory, Inc. TX Certification 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 ANTENNA REQUIREMENT 6 FREQUENCY MEASUREMENTS (Fundamental & Harmonics) 7-10 FREQUENCY MEASUREMENTS (Fundamental & Spurious) 11 LIST OF SUPPORT EQUIPMENT12 CONDUCTED EMISSIONS13 PLOTS OF EMISSION 14 SAMPLE CALCULATIONS15 ACCURACY OF MEASUREMENT 16 LIST OF TEST EQUIPMENT17 RECOMMENDATION / CONCLUSION18 ATTACHMENT D: TEST PLOTS ATTACHMENT E: FCC ID LABEL & LOCATION ATTACHMENT F: BLOCK DIAGRAM(S) ATTACHMENT G: SCHEMATIC DIAGRAM(S) ATTACHMENT H:OPERATIONAL DESCRIPTION ATTACHMENT I: TEST SETUP PHOTOGRAPHS ATTACHMENT J: EXTERNAL PHOTOGRAPHS ATTACHMENT K: INTERNAL PHOTOGRAPHS ATTACHMENT L: USER’S MANUAL Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: October 07-08, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)1 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 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:HUNG CHANG CO., LTD. Address:1385-14, Juan-Dong, Nam-Ku, Inchon, KOREA Attention:K. C. Lee – R&D Manager • FCC ID:OQXHTR2400U • Model:HTR2400U • Trade Name:HUNG CHANG • EUT Type:2.4GHz Wireless Audio/Video Transmitter • Equipment Class:DXX (Low Power Communications Transmitter) • Frequency Range:2.410 – 2.4835 GHz • No. of Channels:4 • Channel Frequencies:Ch.1/2.43GHz, Ch.2/2.45GHz, Ch.3/2.47GHz, Ch.4/2.41GHz • FCC Rule Part(s):§ 15.249 Subpart C (Intentional Radiator) • Dates of Tests:October 07-08, 1999 • Place of Tests:PCTEST Lab, Columbia, MD U.S.A. • Test Report S/N:TX.991004548.OQX • Job No.:KES #917 Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: October 07-08, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)2 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 1.1 Introduction The measurement procedure described in Section 15.249 of FCC Rules, and 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 HUNG CHANG CO., LTD. Low Power Wireless A/V Transmitter FCC ID: OQXHTR2400U. 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. Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: October 07-08, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)3 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 2.1 Product Information 2.2 Equipment Description The Equipment Under Test (EUT) is the HUNG CHANG CO., LTD. (Model: HTR2400U) 2…

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Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: Oct. 07-08, Nov. 27, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)10 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 6.3.2 Frequency Measurements (Fundamental & Harmonics) Operating Frequency:2.47 GHz Distance of Measurements:3 meters Channel: 3 FREQ. (GHz) Level* (dBm) AFCL (dB) POL (H/V) FS (μμV/m) F/S (dBμμV/m) DET. (QP/AVG) MARGIN (dB) 2.47- 51.037.5V47315.193.5AVG.- 0.5 2.47- 47.037.5V74989.497.5PEAK- 16.5 4.94*- 103.046.9V350.850.9AVG.- 3.1 4.94*- 101.246.9V431.552.7PEAK- 1.3 7.41*- 119.052.3V114.841.2PEAK- 12.8 9.88- 124.257.2V40.0100.0PEAK- 14.0 (with no Audio & Video Inputs) NOTES: 1. The limit at fundamental frequency is 50,000 μμV/m @ 3m. using QP detector. The harmonic limit is 500μμV/m @ 3m. 2. The emissions radiated outside of the specified frequency band, except harmonics, are attenuated by at least 50dBc or to the limits in §15.209, whichever is lesser. 3. All harmonic emissions in the restricted bands specified in §15.205 are below the limit shown in Fig. 13 (Note: *). 4. The antenna is manipulated through typical positions and length during the tests. 5. The emissions are maximized by changing polarity of the antenna. 6. The EUT is supplied with the nominal AC voltage and/or a new/fully recharged battery. 7. All channels were investigated and the worst-case is reported. * Restricted Band Figure 13. Spurious Radiated Limits at 3 meters

Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: Oct. 07-08, Nov. 27, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)7 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 6.1 Frequency Measurements (Fundamental & Harmonics) Operating Frequency:2.43 GHz Distance of Measurements:3 meters Channel: 1 FREQ. (GHz) Level* (dBm) AFCL (dB) POL (H/V) FS (μμV/m) F/S (dBμμV/m) DET. (QP/AVG) MARGIN (dB) 2.43- 54.337.4V31989.090.1AVG.- 3.9 2.43- 50.337.4V50699.194.1PEAK- 19.9 4.86*- 104.546.6V285.149.1AVG.- 4.9 4.86*- 102.146.6V375.851.5PEAK- 2.5 7.29*- 118.052.0V112.241.0PEAK- 13.0 9.72- 124.056.8V138.039.8PEAK- 14.2 NOTES: 1. The limit at fundamental frequency is 50,000 μμV/m @ 3m. using QP detector. The harmonic limit is 500μμV/m @ 3m. 2. The emissions radiated outside of the specified frequency band, except harmonics, are attenuated by at least 50dBc or to the limits in §15.209, whichever is lesser. 3. All harmonic emissions in the restricted bands specified in §15.205 are below the limit shown in Fig. 10 (Note: *). 4. The antenna is manipulated through typical positions and length during the tests. 5. The emissions are maximized by changing polarity of the antenna. 6. The EUT is supplied with the nominal AC voltage and/or a new/fully recharged battery. 7. All channels were investigated and the worst-case is reported. * Restricted Band Figure 10. Spurious Radiated Limits at 3 meters Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: Oct. 07-08, Nov. 27, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)8 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 6.2 Frequency Measurements (Fundamental & Harmonics) Operating Frequency:2.45 GHz Distance of Measurements:3 meters Channel: 2 FREQ. (GHz) Level* (dBm) AFCL (dB) POL (H/V) FS (μμV/m) F/S (dBμμV/m) DET. (QP/AVG) MARGIN (dB) 2.45- 52.437.5V40271.792.1AVG.- 1.9 2.45- 48.437.5V63826.496.1PEAK- 17.9 4.90*- 105.046.8V275.448.8AVG.- 5.2 4.90*- 103.046.8V346.750.8PEAK- 3.2 7.35*- 120.052.2V91.239.2PEAK- 14.8 9.80- 125.057.0V89.139.0PEAK- 15.0 NOTES: 1. The limit at fundamental frequency is 50,000 μμV/m @ 3m. using QP detector. The harmonic limit is 500μμV/m @ 3m. 2. The emissions radiated outside of the specified frequency band, except harmonics, are attenuated by at least 50dBc or to the limits in §15.209, whichever is lesser. 3. All harmonic emissions in the restricted bands specified in §15.205 are below the limit shown in Fig. 11 (Note: *). 4. The antenna is manipulated through typical positions and length during the tests. 5. The emissions are maximized by changing polarity of the antenna. 6. The EUT is supplied with the nominal AC voltage and/or a new/fully recharged battery. 7. All channels were investigated and the worst-case is reported. * Restricted Band Figure 11. Spurious Radiated Limits at 3 meters Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: Oct. 07-08, Nov. 27, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)9 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 6.3.1 Frequency Measurements (Fundamental & Harmonics) Operating Frequency:2.47 GHz Distance of Measurements:3 meters Channel: 3 FREQ. (GHz) Level* (dBm) AFCL (dB) POL (H/V) FS (μμV/m) F/S (dBμμV/m) DET. (QP/AVG) MARGIN (dB) 2.47- 51.937.5V42657.992.6AVG.- 1.4 2.47- 47.937.5V67608.396.6PEAK- 17.4 4.94*- 104.046.9V312.649.9AVG.- 4.1 4.94*- 102.046.9V393.651.9PEAK- 2.1 7.41*- 121.052.3V82.238.3PEAK- 15.7 9.88- 125.057.2V91.239.2PEAK- 14.8 NOTES: 1. The limit at fundamental frequency is 50,000 μμV/m @ 3m. using QP detector. The harmonic limit is 500μμV/m @ 3m. 2. The emissions radiated outside of the specified frequency band, except harmonics, are attenuated by at least 50dBc or to the limits in §15.209, whichever is lesser. 3. All harmonic emissions in the restricted bands specified in §15.205 are below the limit shown in Fig. 12 (Note: *). 4. The antenna is manipulated through typical positions and length during the tests. 5. The emissions are maximized by changing polarity of the antenna. 6. The EUT is supplied with the nominal AC voltage and/or a new/fully recharged battery. 7. All channels were investigated and the worst-case is reported. * Restricted Band Figure 12. Spurious Radiated Limits at 3 meters Test Report S/N: TX.991004548.OQXFCC Part 15.249 Subpart C Dates of Tests: Oct. 07-08, Nov. 27, 1999Transmitter Certification © 1999 PCTEST LabFCC ID: OQXHTR2400U (2.410 – 2.4835 GHz)11 HUNG CHANG CO., LTD. 2.4GHz Wireless A/V Transmitter 6.4 Frequency Measurements (Fundamental & Harmonics) Operating Frequency:2.41 GHz Distance of Measurements:3 meters Channel: 4 FREQ. (GHz) Level* (dBm) AFCL (dB) POL (H/V) FS (μμV/m) F/S (dBμμV/m) DET. (QP/AVG) MARGIN (dB) 2.41- 51.837.2V41686.992.4AVG.- 1.6 2.41- 48.037.2V64565.4296.2PEAK- 17.8 4.82*- 104.546.5V281.849.0AVG.- 5.0 4.82*- 102.546.5V354.851.0PEAK- 3.0 7.23*- 120.052.0V177.845.0PEAK- 9.0 9.64- 124.056.6V95.539.6PEAK- 14.9 NOTES: 1. The limit at fundamental frequency is 50,000 μμV/m @ 3m. using QP detector. The harmonic limit is 500μμV/m @ 3m. 2. The emissions radiated outside of the specified frequency band, except harmonics, are attenuated by at least 50dBc or to the limits in §15.209, whichever is lesser. 3. All harmonic emissions in the restricted bands specified in §15.205 are below the limit shown in Fig. 14 (Note: *). 4. The antenna is manipulated through typical positions and length during the tests. 5. The emissions are maximized by changing polarity of the antenna. 6. The EUT is supplied with the nominal AC voltage and/or a new/fully recharged battery. 7. All channels were investigated and the worst-case is reported. * Restricted Band Figure 14. Spurious Radiated Limits at 3 meters

Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter Test Report S/N: DoC.991004548.OQXFCC Part 15.249 Subpart C Test Date(s): October 07-08, 1999Transmitter Certification © 1999 PCTEST Lab FCC ID: OQXHTR2400U (2.410-2.4835 GHz) NVLAP Lab Code: 100431-0 HUNG CHANG Co., Ltd. 2.4 GHz Wireless A/V Transmitter