NZTAT09Transmitter of Wireless Headphones-System

Request for Confidentiality 25 May 2004 PHOENIX TEST-LAB GmbH Königswinkel 10 D32825 Blomberg Germany RE: Certification Application FCC ID: NZTAT09 Please be advised that the following information is to be held confidential on behalf of Artchief Industries Ltd.: • Schematics • Parts Lists • Block Diagram • Technical Description The application contains technical information which Artchief Industries Ltd. deems to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the market place. Thank you for your attention to this matter.

FCC ID NZTAT09 FCC ID NZTAT09 FCC ID NZTAT09 FCC ID NZTAT09 FCC ID NZTAT09

FCC ID NZTAT09 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.

FCC ID NZTAT09 FCC ID NZTAT09 FCC ID NZTAT09

EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 1 of 20 Pages Straubing, 05 March 2004 T E S T - R E P O R T No. 57101-40021-1 for AF01 Transmitter Of Wireless Headphones-System Applicant: Artchief Industries Ltd. Test Specification: FCC Code of Federal Regulations, CFR 47, Part 15, Section 15.235 Note: The test data of this report relate only to the individual item which has been tested. This report shall not be reproduced except in full extent without the written approval of the testing laboratory. EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 2 of 20 Pages Table of Contents 1. Administrative Data....................................................................................3 2. Identification of Test Laboratory.................................................................4 3. Operation Mode of EUT.............................................................................5 4. Configuration..............................................................................................6 5. Measuring Methods...................................................................................7 5.1. Conducted powerline emissions..........................................................7 5.2. Radiated Emission Measurement 9 kHz – 30 MHz.............................8 5.3. Field Strength of Emissions, Prescans in a fully-anechoic Room...................................................................................................9 5.4. Radiated Emission Measurement at Open Area Test Site................10 6. Photographs Taken During Testing.........................................................11 7. List of Measurements...............................................................................15 8. Referenced Regulations..........................................................................19 Charts taken during testing...............................................................................20 EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 3 of 20 Pages 1. Administrative Data Test item (EUT) Type designation AF01 Serial number(s): 001 Type of equipment: Transmitter Of Wireless Headphones-System Parts/accessories: FCC-ID: Technical data Frequency range 49.82 – 49.90 MHz Operational frequencies 49.86 MHz Type of modulation 10K0F1D Pulse frequency N/A Pulse width N/A Antenna Integrated Power supply DC 12 V Applicant: (full address) Artchief Industries Ltd. Unit 905, 9/F., Tower A, Regent Center 63-73 Wo Yi Hop Road, Kwai Chung N.T. Hong Kong Contract identification: --- Contact person: Mr. Charles Chu Manufacturer: Artchief Industries Ltd. Application details Receipt of EUT: 19 January 2004 Date of test: March 2004 Note: Responsible for testing: German Tauber Responsible for test report: Martin Steindl EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 4 of 20 Pages 2. Identification of Test Laboratory DETAILS OF THE TEST LABORATORY COMPANY NAME: Senton GmbH EMI/EMC Test Center ADDRESS: Aeussere Fruehlingsstrasse 45 D-94315 Straubing Germany LABORATORY ACCREDITATION: DAR-Registration No. TTI-P-G 062/94-01 FCC TEST SITE LISTING 90926 INDUSTRY CANADA TEST SITE REGISTRATION IC 3050 NAME FOR CONTACT PURPOSES: Mr. Johann Roidt TELEPHONE: (+49) (0)9421 5522-0 FAX: (+49) (0)9421 5522-99 PERSONNEL INVOLVED IN THIS TEST REPORT LABORATORY MANAGER: Mr. Johann Roidt RESPONSIBLE FOR TESTING: Mr. German Tauber RESPONSIBLE FOR TEST REPORT: Mr. Martin Steindl SUMMARY OF TEST RESULTS The tested sample complies with the requirements set forth in the Code of Regulations CFR 47, Part 15, Section 15.235 EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 5 of 20 Pages 3. Operation Mode of EUT Transmitting continiuously modulated with audio-signal. EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 6 of 20 Pages 4. Configuration Configuration of the EUT Not applicable Cables connected to the EUT - DC-input - Audio-input Peripheral devices connected to the EUT Not applicable EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 7 of 20 Pages 5. Measuring Methods 5.1. Conducted powerline emissions Rules and Specifications: Sections 15.107 & 15.207 Guide: CISPR 22 Measurement Procedure: In general conducted emission tests in the frequency range 0.15 - 30 MHz are required to be performed with quasi-peak and average detector. To simplify testing the following procedure is used: First the whole spectrum of emission caused by equipment under test (EUT) is recorded with detector set to peak. After that all emission levels having less margin than 20 dB to or exceeding the appropriate limit (in general average limit is 10 dB lower than quasi-peak limit) are retested with detector set to quasi-peak. If average limit is kept no additional scan with average detector is necessary. In cases of emission levels between quasi-peak and average limit an additional scan with detector set to average has to be recorded. Shielded Room LISN EUT Wooden Table EMI-Receiver Test instruments used: No. Type Model Serial Number Manufacturer 01 EMI Receiver ESHS 10 860043/016 Rohde & Schwarz 02 LISN ESH3-Z5 862770/021 Rohde & Schwarz 03 LISN ESH-3-Z5 830952/025 Rohde & Schwarz 04 Shielded Room No. 4 --- 3FD-100 544 Euroshield EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 8 of 20 Pages 5.2. Radiated Emission Measurement 9 kHz – 30 MHz Rules and Specifications: Sections 15.109 & 15.209 Guide: ANSI C63.4 1997 Measurement Procedure: Radiated emissions in the frequency range 9 kHz – 30 MHz were measured initially at a distance of 3 meters. A prescan at 3 meter distance were performed in a shielded room with the detector of the spectrum analyzer or EMI Receiver set to peak. Hand-held or body-worn devices are rotated through three orthogonal axes to determine which attitude and configuration produces the highest emiss…

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EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 12 of 20 Pages Test setup for conducted power line emission measurement EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 13 of 20 Pages Test setup for radiated emission measurement (fully anechoic room) EMV-PrüfzentrumEMI/EMC-Testcenter FCC-ID: Test Report No. 57101-40021-1 Page 14 of 20 Pages Test setup for radiated emission measurement (open area test-side)