RFPBT-8UWIRELESS MICROPHONE

863-863863-863 VOLUME A VOLUME B 2X16 CHANNEL UHF PLL PROFESSIONAL RECEIVER. MICROPROCESSOR CONTROL LCD WINDOW ALCD WINDOW B R FdB A FdB C H Mhz A ANT Auto MUTE R FdB A FdB C H Mhz ANT Auto MUTE BM-8062

Page 1 of 3 Front View of EUT Back View of EUT Page 2 of 3 Left View of EUT Right View of EUT Page 3 of 3 Top View of EUT Bottom View of EUT

Internal View of EUT-1 Internal View of EUT-2

Theory Of Operation 1, Switch on the power, then all the components are on power 2, Audio signals are acquired from the MIC. 3, Carrier Frequency are produced by Crystal Responser(X1). 4, Audio signals are modulated on the Carrier Frequency by the way of F3E. 5, The modulated signal will be amplified. 6. The amplified signal will then be transmitted to the air by the transmitting antenna.

FCCID: RFPBT-8U July 20, 2006. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 I would like to confirm this device (FCCID: RFPBT-8U) does not have tune up information because the tune up is fixed by the manufacturer. Therefore, the user cannot tune up the device. Sincerely, ENPING DEXUN ELECTRONIC TECHNOLOGY CO.,LTD. ------------------ ZJ Feng(Mr.) Manager

Guangzhou Huesent Testing Service Co.,Ltd. REPORT NO: GD06080025 DATE OF ISSUE: 08/08/2006 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 74 SUBPART H REQUIREMENT OF UHF Wireless Microphone MODEL NO.: BT-8U BRAND NAME: N/A FCC ID: RFPBT-8U REPORT NO: GD06080025 ISSUE DATE: August 8, 2006 Prepared for ENPING DEXUN ELECTRONIC TECHNOLOGY CO.,LTD. NORTH BANLIEUE INDUSTRY BUILDING， ENPING，GUANGDONG，CHINA Prepared by Guangzhou Huesent Testing Service Co.,Ltd. d.b.a. Guangzhou Huesent Testing Service Co.,Ltd. Self-ordained 68# courtyard, No. 91, Donggaungzhuang Road, Guangzhou, Guangdong, China. TEL: 86-20-87221905 FAX: 86-20-87223892 Guangzhou Huesent Testing Service Co.,Ltd. REPORT NO: GD06080025 DATE OF ISSUE: 08/08/2006 VERIFICATION OF COMPLIANCE Applicant: ENPING DEXUN ELECTRONIC TECHNOLOGY CO.,LTD. NORTH BANLIEUE INDUSTRY BUILDING ， ENPING ， GUANGDONG，CHINA Product Description: UHF Wireless Microphone Brand Name: N/A Model Number: BT-8U Serial Number: N/A File Number: GD06080025 Date of Test: July 20,2006 ~ August 8, 2006 We hereby certify that: The report for the equipment was prepared by China CEPREI (Headquarters) Laboratory. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in TIA/EIA 603; ANSI C 63.4:2001 and the sample tested as described in this report is in compliance with the FCC Rules Part 74 Subpart H. The test results of this report relate only to the tested sample identified in this report. Approved By Reviewed By Guangzhou Huesent Testing Service Co., Ltd. REPORT NO: GD06080025 DATE: 08/08/2006 Page 3 Rev. 00 Ta b l e o f C o n t e n t s 1. GENERAL INFORMATION .............................................4 2. SYSTEM TEST CONFIGURATION .............................................7 3. SUMMARY OF TEST RESULTS ............................................10 4. DESCRIPTION OF TEST MODES .............................................10 5. MAXIMUM TRANSMITTER POWRE ..........................................11 6. MODULATION CHARACTERISTICS ..........................................14 7. FREQUENCY TOLERANCE .........................................22 8. EMISSION BANDWIDTH ...........................................26 9. UNWANTED RADIATION .............................................29 APPENDIX 1 PHOTOGRAPHS OF EUT ..............................................35 Guangzhou Huesent Testing Service Co., Ltd. REPORT NO: GD06080025 DATE: 08/08/2006 Page 4 Rev. 00 1. GENERAL INFORMATION 1.1 Product Description ENPING DEXUN ELECTRONIC TECHNOLOGY CO.,LTD. Model: BT-8U (referred to as the EUT in this report). The EUT is a UHF Wireless Microphone designed as Low Power Auxiliary Stations for transmitting voice only. It is designed by way of utilizing the FM modulation achieves the system operating. A major technical descriptions of EUT is described as following: A). Frequency Tolerance: 0.00064% (0.005%) B). Communication Type: Voice/Tone only C). Modulation: FM D). Emission type: F3E E). Emission designator: 100K1F3E (2M+2DK, M=12, D=38.04, K=1, Necessary Bandwidth = 100.1 KHz) F). Emission Bandwidth: 102.7 KHz (Limit: 200 KHz) G).Peak Frequency Deviation: 38.04 KHz (Limit<75 KHz) H).Audio Frequency Response: 12 KHz I). Maximum Transmitter Power: 3.24 mW (Limit: 250 mW) J). Output power Modification: Fixed can’t be change K). Unwanted Radiation: 1). At least 60 dB (Limit 25 dB) on any frequency removed from the center of the authorized bandwidth by more than 50% up to and including 100% of the authorized bandwidth. 2). At least 65 dB (Limit 35 dB) on any frequency removed from the center of the authorized bandwidth by more than 100% up to and including 250% of the authorized bandwidth. 3). At least 27 dB (Limit 17.38 dB) on any frequency removed from the center of authorized bandwidth by more than 250%) L ). Antenna Designation: Integral M). Power Supply: 9 V dc by battery N). DC Voltage= 7.3 V and DC Current= 16.3 mA into the final stage for normal operation over the power range O). Battery Endpoint: DC 7.3 V P). Operating Frequency Range and Channels Frequency Range: 700 MHz – 805 MHz CH 01 – 700.500 MHz CH 02 – 794.90 MHz CH 03 – 804.78 MHz Q). Effective distance: 50M Guangzhou Huesent Testing Service Co., Ltd. REPORT NO: GD06080025 DATE: 08/08/2006 Page 5 Rev. 00 1.2 Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended for FCC ID filing to comply with the FCC Part 74, Subpart H Rules. 1.3 Test Methodology The radiated emission testing was performed according to the procedures of ANSI TIA/EIA 603 and FCC CFR 47 2.1046, 2.1047, 2.1049, 2.1051, 2.1053, 2.1055 and 2.1057 1.4 Test Facility The open area test site used to collect the radiated data is located on the address of Compliance Engineering Service (China).( FCC Registered Test Site Number: 101879) No. 6, Jinao industrial park, No.35 Jukeng Road, Dashuikeng Village, Guanlan Town, Baoan District, Shenzhen, China. The Open Area Test Site is constructed and calibrated to meet the FCC requirements in documents ANSI C63.4: 2001 and CISPR 22/EN 55022 requirements. 1.5 Special Accessories Not available for this EUT intended for grant. 1.6 Equipment Modifications Not available for this EUT intended for grant. 1.7 Differences between Models Model Name Differences N/A N/A Guangzhou Huesent Testing Service Co., Ltd. REPORT NO: GD06080025 DATE: 08/08/2006 Page 6 Rev. 00 2. System Test Configuration 2.1 EUT Configuration The EUT configuration for testing is installed on RF field strength measurement to meet the Commission’s requirement and operating in a manner which intends to maximize its emission characteristics in a continuous normal application. 2.2 EUT Exercise The Transmitter was operated in the normal operating mode. the TX frequency was fixed which was for the purpose of the measurements. 2.3 GENERAL TECHNICAL REQUIREMENTS a). Section 74.861 (e) - 1: Maximum transmitter power l…

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Page 1 of 1 Test Setup for EUT