SIDBE-5008Wireless Microphone

1 Mike Kuo From: Jimmy [[email protected]] Sent: December092004 To: Mike Kuo; [email protected] Subject: ENPING GAOER AUDIO EQUIPMENT CO,LTD, FCC ID: SIDBE-5008, Assessment NO.: AN04T4375, Notice#1 turn up procedure.pdf FCC ID label and Location.pdf Confidentiality.pdf Response to questions of ENPING GAOER AUDIO EQUIPMENT CO,LTD, FCC ID: SIDBE-5008, Assessment NO.: AN04T4375 Response to question #1: The proposed FCC ID location on the equipment is illustrated in the revised document with the name of FCC ID label and location. Response to question #2: The user manual is for the whole wireless microphone system there have two microphones ( one is 188.2 MHz and the other one is 203.2 MHz) and a receiver. Regarding to this application, only one transmitter (188.2 MHz) was certificated for separate sale. Response to question #3: For microphones operating on188.2 MHz and 203.2, there was nothing difference except the crystal oscillator, so the schematic diagram is shared for either. Only frequency 188.2 MHz was certificated in this application. Response to question #4: Both the 26dB BW and Emission Mask test results was acquired from the original measurement with audio modulation function activated. Because it's impossible to be absolutely stable for both frequency and emission level while testing, in order to assure full compliance, the following method had been taken to manipulate the test instrument: Max hold Trace A until the max frequency range and emission level was got, then View Trace A, mostly, the trace on the plot looks smooth just like without audio modulation. The status of trace can be found on the plot indicated as A_Max or A_View. Response to question #5: The revised confidentiality letter is provided. Response to question #6: Tune up procedure is provided with the file name of tune up procedure in attached files.

Top View of Wireless Microphone Bottom View of Wireless Microphone Body of Wireless Microphone Open View of Wireless Microphone

EnPing GaoEr Audio Equipment Co, Ltd This device complies with Part 74 of FCC Rules FCC ID: SIDBE-5008

Inside Photos of Wireless Microphone Inside photo-1 Inside photo-2 Inside photo-3 Inside photo-4 Inside photo-5 Inside photo-6

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.

ComponentModelQuantity ComponentModelQuantity Lampholder 102P 103P306 Transmitter 200PCrystal 502P j Resistor10K 0.5PK-22 PCB 150P Coil 15P 20PFlat tube 22PIlluminator 30P*10U/10V 33P*1U/10V 6P*2.2U/10V 3.3UH Frequency Face 100KPlat Battery sheet 10K Triangle Plug-in Board 15KThimbel 1Kshaft 1.5K Atenna paper face 220K 9V Battery paperFace 22K1N4148 2.2K1S2638 33K78L05 3.3KSP31101 47K 47 4.7K 82K BE-5008bill of materials Capacitor Triode Triode Diode Assemble

ADJUSTMENT PROCEDURES 1. Transmitter Power Adjustment a). Adjust the DC power supply so that 9.0V is obtained at the battery terminals. Confirm that the power meter, dummy load and output tester are prepared. b). Turn the power on and mount a X1 element (20.9211MHz) into the crystal on the PCB board. c). Adjust VC1, VC2, VC3, VC4, VC5 in this order so that the power meter reading become maximum. d). Repeat procedure c several times. The RF power meter reading should be more than 0.001W when the power is on and at a normal temperature. Then check the current meter reading should be less than 60mA. 2. Transmission Deviation Adjustment a). Set up the unit for the transmission mode. b). Adjust L1 so that the frequency counter reading is 30 KHz c). So that the maximum deviation is 30 KHz Adjustment setup block diagram ADJUSTMENT SETUP BLOCK DIAGRAM NOTE: The elements illustrated above are solely for explaining the adjustment procedure. DC Power Supply Power meter Dummy Load Frequency Counter ANT VC5 VC4 VC3 VC2 VC1 L1

COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 Page 1 of 39 Rev. 00 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 74 SUBPART H REQUIREMENT OF WIRELESS MICROPHONE MODEL NO.: BE-5007 BRAND NAME: N/A FCC ID: SIDBE-5008 REPORT NO:SZE0408042 ISSUE DATE: November 26, 2004 Prepared for ENPING GAOER AUDIO EQUIPMENT CO,LTD NO.95 XINGPING NORTH ROAD,ENPING Prepared by COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. d.b.a. COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. NO. 6, JINAO INDUSTRIAL PARK, NO. 35 JUKENG ROAD, DASHUIKENG VILLAGE, GUANLAN TOWN, BAOAN DISTRICT, SHENZHEN, CHINA TEL: 86-755-28055000 FAX: 86-755-28055221 COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 Page 2 Rev. 00 VERIFICATION OF COMPLIANCE Applicant: EnPing GaoEr Audio Equipment Co,Ltd No.95,XINGPING NORTH ROAD,ENPING Product Description: Wireless Microphone Brand Name: N/A Model Number: BE-5007;BE-5008;BE-5018;BE-5019 Serial Number: N/A File Number: SZE0408042 Date of Test: November 5,2004 ~ November 21, 2004 We hereby certify that: The above equipment was tested by COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. 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 Clinton Kao / Q.A. Manager Jimmy COMPLIANCE CERTIFICATION COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. SERVICES (SHENZHEN) INC. COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 Page 3 Rev. 00 Table of Contents 1. GENERAL INFORMATION .............................................4 2. SYSTEM TEST CONFIGURATION .............................................6 3. SUMMARY OF TEST RESULTS .............................................9 4. DESCRIPTION OF TEST MODES ..............................................9 5. MAXIMUM TRANSMITTER POWRE ..........................................10 6. MODULATION CHARACTERISTICS ..........................................14 7. FREQUENCY TOLERANCE .........................................18 8. EMISSION BANDWIDTH ...........................................22 9. UNWANTED RADIATION .............................................25 APPENDIX 1 PHOTOGRAPHS OF SETUP ..............................................31 APPENDIX 2 PHOTOGRAPHS OF EUT .............................................33 COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 Page 4 Rev. 00 1. GENERAL INFORMATION 1.1 Product Description The EnPing GaoEr Audio Equipment Co,Ltd Model: BE-5007 (referred to as the EUT in this report). The EUT is a one channels 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: 0.00093% (0.005%) B). Communication Type: Voice/Tone only C). Modulation: FM D). Emission type: F3E E). Emission designator: 37K7F3E (2M+2DK, M=12, D=6.87, K=1, Necessary Bandwidth = 37.74 KHz) F). Emission Bandwidth: 45 KHz (Limit: 200 KHz) G).Peak Frequency Deviation: 6.87 KHz (Limit<75 KHz) H).Audio Frequency Response: 12 KHz I). Maximum Transmitter Power: 0.08 mW (Limit: 50 mW) J). Output power Modification: Fixed can’t be change K). Unwanted Radiation: 1). At least 50 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 55 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 30 dB (Limit 1.92 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= 6.5 V and DC Current= 28.6 mA into the final stage for normal operation over the power range O). Battery Endpoint: DC 6.5 V P). Operating Frequency Range and Channels Frequency Range: 188 MHz CH 01 ---- 188 MHz Q). Effective distance: 20M, with 0.08 mW power output 1.2 Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended for FCC DOC filing to comply with the FCC Part 74, Subpart H Rules. COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 Page 5 Rev. 00 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 CERTIFICATION SERVICES (SHENZHEN) INC. 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 BE-5008 No difference BE-5018 No difference BE-5019 No difference COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZE0408042 FCC ID: SIDBE-5008 DATE: 11/26/2004 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 Commi…

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Setup Photographs of Radiation