RCDVHP2WIRELESS HEADPHONE

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX I : Instruction Manual DIAGRAM OF CONNECTION Power switch V V V H H H P P P - - - 2 2 2 Power control eye Channel switch Channel switch Volume control Battery compartment WIRELESS HEADPHONE AV JUNCTION CONTROLLER VC-10T Wireless Headphone VHP-2 Wireless Headphone VHP-2 SPECIFICATIONS z Power Requirement : 3V Battery(1.5V AAA x 2) z Receiving Frequency: 426MHz, 428MHz(2 Ch) z Receiving Type: Heterodyne z Modulation Type: FM z Audio Output : 25 W FCC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation . CAUTION ! Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX A : ATTESTATION STATEMENT July 23, 2003 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S.A To whom it may concern: We, the undersigned, hereby authorize GUMI College EMC Center to act on our behalf in all matters relating to applications for equipment authorization, including the signing of all documents relation to these matters. Any and all acts carried out by GUMI College EMC Center on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to the application is subject of a denial of benefits, including FCC benefits, pursuant 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Sincerely, Ho Seok Gwak, Q.A Manager DONGYANG Electronics Co.,Ltd

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX C : BLOCK DIAGRAM

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX G : EXTERNAL PHOTOGRAPHS EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX D : ID SAMPLE LABEL & LOCATION EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification LABELLING REQUIREMENTS 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. „ ID Label Note: It is not practicable to place the statement specified under §15.19(a), because this device is so small. Therefore, the FCC statement is placed in a prominent location in the “APPENDIX I, Instruction manual”. „ ID Label Location of EUT I.D Label

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX H : INTERNAL PHOTOGRAPHS EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX B : OPERATIONAL DESCRIPTION Operational Description „ The EUT is a Wireless Headphone that can receive the audio signals from the RF transmitter. „ The audio signal that received from the antenna is amplified by Q101 and Q102. The amplified signals change to IF frequency 10.7MHz at a MIXER part of Q103. The IF frequency is filtered at U101, Z101 and FM demodulated at DET circuit. The demodulated FM signal is separated L, R channels and amplified by U101. The amplified L, R signal pass to the speaker on the headphone set. 9 Receiving Frequency : 426MHz, 428MHz (2CH) 9 Modulation Type : FM 9 Receiving Type : Heterodyne 9 Power supply : 3Vdc(1.5Vdc AAA x 2) „ MAIN COMPONENT LIST Block Circuit No Name Description LNA Q101,Q102 STC917 Low noise amplifier MIXER Q103 STC917 Signal mixer OSC Q104 STC917 Oscillator FILTER Z101 LT10MA20 IF Ceramic filter(10.7MHz) DISCRIMINATOR X101 ZT10.7MG 10.7MHz RESONATOR X102 ZTB456F16 456KHz AUDIO AMP U102 TDA2822D Audio amplifier The detail information of used component is described on the schematic diagram.

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX E : SCHEMATIC DIAGRAM 55 44 33 22 11 D D C C B B A A <Doc> 1.2 WHD430R B 11 Wednesday, February 04, 2004 TitleSize Document Number Rev Date: Sheet of C103560P R116 1.5K + EC102 2.2u/50V D102 SDS511 C11910N R12556K BT1011.5AAAX2 X101LT10.7 MA20 C10115P R11722K + EC107 0.47u/50V C122104 C107100N C121104 ANTENNA 1 L104 10N U101TA8122 12 11 10 9 8 7 6 5 23 4 3 2 13 14 15 17 18 19 20 21 1 22 24 16 QUAD ST_LED TUN_LED GND FM_IFIN AM_IFIN VCC2 AGC FM_RFOUT AM_MIX FM_MIX GND1 R_OUT L_OUT VCO LPF1 DET_IN DET_OUT AM_OSC FM_OSC FM_RFIN VCC1 AM_RFIN LPF2 VR102POT DUAL 1" 2(4) 1 3(5) 3"(3)2"(2) C11668P C120100N + EC111100u/16V X102 ZTB456-F16 LD101 BL85141 31 R1011.5K R118 330 C104 4P C112 15P R108330 R12230K Q105STC917 R111220 Q103STC917 VR10150K 13 2 Q104 STC917 + EC110 100u/16V L10322N + EC105 4.7u/50V VD1011SV217 R10433K + EC109 47u/16V C113100N Q106KTC3882 C130100n C125104 Q101STC917 C129100n U102ATDA2822 5 4 67 312 8 IN2 GND IN2IN1 OUT2OUT1VCC IN1 SP102ASPEAKER-R R120 4.7K + EC10847u/16V D101SDS511 R12130K R119 10K C11520P R1071k L10112nH R110 56K R11447K R11347K C131100n C102X R112100K C10810N L100X C109 56P L102 3.3uH C1275P + EC106 4.7u/50V R1151.5K C1287P Q107 KTC3882 C1104.7N U103 S-1111B 23 45 1 Vss ON/OFF -VoutVin R102100 R10547 C11410P R123 1.5K R1241.5K SW101SW SLIDE 3 2 + EC10147u/16V + EC1042.2u/50V SW102 SW SLIDE 3 2 SP101ASPEAKER-L C111100P C1055P C1184P R103300 C117X Z101 QZS1MEG R1261K Q102 STC917 C124 104 C123104 C1264.7n R10656K + EC1122.2uF/16V R12756K C10610N

EUT Type : Wireless Headphone FCC ID: RDCVHP2 Page 2 of 12 Test Report No.: GETET-E3-04-006 FCC Part 15 Subpart B Certification CONTENTS 1. SCOPE...........................................................................................................................................................................3 2. INTRODUCTION ........................................................................................................................................................4 3. TEST CONDITIONS & EUT INFORMATION........................................................................................................5 3.1 DESCRIPTION OF EUT..............................................................................................................................................5 3.2 SUPPORT EQUIPMENT USED.....................................................................................................................................5 4. DESCRIPTION OF TESTS.........................................................................................................................................6 4.1 RADIATED EMISSION................................................................................................................................................6 4.2 CONDUCTED EMISSION............................................................................................................................................6 5. RADIATED EMISSION ..............................................................................................................................................7 5.1 OPERATING ENVIRONMENT.....................................................................................................................................7 5.2 TEST SET-UP..............................................................................................................................................................7 5.3 MEASUREMENT UNCERTAINTY................................................................................................................................7 5.4 LIMIT........................................................................................................................................................................8 5.5 TEST EQUIPMENT USED............................................................................................................................................8 5.6 TEST DATA FOR RADIATED EMISSION.......................................................................................................................9 6. SAMPLE CALCULATIONS..................................................................................................................................... 11 7. RECOMMENDATION & CONCLUSION..............................................................................................................12 APPENDIX A – ATTESTATION STATEMENT APPENDIX B – OPERATIONAL DESCRIPTION APPENDIX C – BLOCK DIAGRAM APPENDIX D – ID SAMPLE LABEL & LOCATION APPENDIX E – SCHEMATIC DIAGRAM APPENDIX F – TEST SET-UP PHOTOGRAPHS APPENDIX G – EXTERNAL PHOTOGRAPHS APPENDIX H – INTERNAL PHOTOGRAPHS APPENDIX I – INSTRUCTION MANUAL EUT Type : Wireless Headphone FCC ID: RDCVHP2 Page 3 of 12 Test Report No.: GETET-E3-04-006 FCC Part 15 Subpart B Certification 1. Scope Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and / or unintentional radiators for compliance with technical rules and regulations of the Federal Communications Commission . z FCC ID RCDVHP2 z EUT Type Wireless Headphone z Model No. VHP-2 z Rule Part(s) FCC Part 15 Subpart B z Equipment Class Communications Receiver used W/Pt 15 Transmitter (CYY) z Test Procedure(s) ANSI C63.4 (1992) z Rule Part(s) FCC Part 15, Subpart B, Section 15.109 z Dates of Test February 3, 2004 z Place of Test Gumi College EMC Center z Test Report No. GETEC-E3-04-006 Responsible Party : DONGYANG Electronics Co., Ltd. Contact Person : Mr. Ho-Seok Gwak / QA Manager Manufacturer : DONGYANG Electronics Co., Ltd. 760, Daemang-Ri, Goa-Eub, Gumi-City, Gyeongsangbuk-Do, Korea EUT Type : Wireless Headphone FCC ID: RDCVHP2 Page 4 of 12 Test Report No.: GETET-E3-04-006 FCC Part 15 Subpart B Certification 2. Introduction The measurement procedure described in American National Standard for Methods of Measurement of Radio-Nose Emissions From Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ASNI C63.4- 1992) was used in determining radiated and conducted emissions emanating from DONGYANG Electronics Co., Ltd. Wireless Headphone (Model No.: VHP-2) These measurement tests were conducted at Gumi College EMC Center. The site address is 407, Bugok-Dong, Gumi-City, Gyeongsangbuk-Do, Korea This test site is one of the highest point of Gumi 1 college at about 200 kilometers away from Seoul city and 40 kilometers away from Daege city. It is located in the valley surrounded by mountains in all directions where ambient radio signal conditions are quiet and a favorable area to measure the radio frequency interference on open field test site for the computing and ISM devices manufactures. 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 Fig 1. The map above shows the Gumi College in vicinity area. GUMI COLLEGE EMC CENTER 407,Bugok-Dong, Gumi-City, Gyeongsangbuk-Do 730-711, Korea Tel: +82-54-440-1195~8 Fax: +82-54-440-1199 EUT Type : Wireless Headphone FCC ID: RDCVHP2 Page 5 of 12 Test Report No.: GETET-E3-04-006 FCC Part 15 Subpart B Certification 3. Test Conditions & EUT Information 3.1 Description of EUT The Equipment Under Test (EUT) is the DONGYANG Electronics Co., Ltd. Wireless Headphone (Model No.: VHP-2) FCC ID : RCDVHP2 It can receive the audio signals from the RF transmitter in a car. Te s t M o d e Continuous receiving mode Power supply 3…

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EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification APPENDIX F : TEST SET UP PHOTOGRAPHS EUT Type : Wireless Headphone FCC ID: RDCVHP2 Test Report No.: GETEC-E3-04-006 FCC Part 15 Subpart B Certification „ Radiated Test Picture (Front) „ Radiated Test Picture (Rear)