TNHU9000CWireless Microphone

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1234 A B C D 4321 D C B A Title NumberRevisionSize B Date:28-Oct-2004Sheet of File:F:\RZ\U-7000fk\U-7000C.DDBDrawn By: AMP LP Compandor Filter Vco 1st Filter PLLMcu Lcd Display Freq Select 600K PWM DC----DC +6V Mcu TR13 PDF 文件以 "pdfFactory Pro" 试用版创建 www.pdffactory.com

Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Sections 0.457 and 0.459 pertaining to confidential material. { Guangzhou DVON Professional Audio Co.,Ltd } would like the following documents regarding this submission for FCC ID: { TNHU9000C } to be kept confidential. 1. Schematics diagram. The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Sincerely, Manager: Xiangquan Ye

Guangzhou DVON Professional Audio Co.,Ltd FCC IDTNHU9000C

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 PLL . 4、 Carrier Frequency are controlled by CPU. 5、 Audio signals are modulated on PLL . 6、 The modulated signal will be amplified . 7、 The amplified signal will be transmitted to the air by the transmitting antenna . PDF 文件以 "pdfFactory Pro" 试用版创建 www.pdffactory.com

ITEMNAMEDESRIPIONQTYINSTANCE-NAME 1Capacitor1P3C47.C54.C53 2Capacitor1.5P3C32.C44.C51 3Capacitor2P4C26.C37.C71.C19 4Capacitor2.5P2C8.C13 5Capacitor3P6DE24.C15.C10.C20.C36.C38 6Capacitor4P1C48 7Capacitor4.5P1DE18 8Capacitor5P1C6 9Capacitor6P1C3 10Capacitor7P6C17.C98.C42.C93.C41.C33 11Capacitor9P1C46 12Capacitor10P1C14 13Capacitor27P6C12.C73.C83.C72.C70.C75 14 15Capacitor100P3DE26.DE23.C22.C64.C89.C24.C29.C130.C28.C120.C125.C96.R23.DE16 16Capacitor220P1C121 17Capacitor223P1C109 18Capacitor473P1C59 19Capacitor102P5C57.C114.C31.C52.C45 20Capacitor103P12C123.C122.C121.C118.C27.C18.C16.C94.C81.C34.C101.C113 21Capacitor104P21C80.C25.C49.C23.C88.C77.C108.C82.C79.C58.C65.C66.C63 22CapacitorC61.C84.C9.C99.C86.C91.C95.C102 23Capacitor105P3C107.C103.C104 24Capacitor226P2C62.C134 25Capacitor475P12C4.C2.C85.C76.C78.C69.C100.C127.C105.C106.C97.C119 26Capacitor3-20P1C35 27Capacitor5-30P1C68 28RESISTANCE2.2M1R63 29RESISTANCE0R5R48.R56.R65.C5.R7 30RESISTANCE10R1R8 31RESISTANCE47R2R32.R20 32RESISTANCE51R1R15 33RESISTANCE68R1R24 34RESISTANCE330R1R33 35RESISTANCE560R1R79 36RESISTANCE680R1R31 37RESISTANCE820R1R30 38(0805):1K1R22 39RESISTANCE1K4R43.R69.R1.R70 40RESISTANCE2.2K2R108.R106 41RESISTANCE2.7K1R29 42RESISTANCE3.3K1R28 43RESISTANCE4.7K2R76.R14 44RESISTANCE8.2K1R71 45RESISTANCE10K13R6.R4.R86.R37.R105.R91.R75.R45.R42.R39.R41.R97.R10 46RESISTANCE18K4R26.R34.R25.R9 47RESISTANCE22K7R87.R85.R84.R78.R92.R72.C116 48RESISTANCE24K3R2.R5.R3 HANDHELD TRANSMITTER PDF 文件以 "pdfFactory Pro" 试用版创建 www.pdffactory.com ITEMNAMEDESRIPIONQTYINSTANCE-NAME HANDHELD TRANSMITTER 49RESISTANCE33K5R83.R80.R18.R68.R64 50RESISTANCE39K1R104 51RESISTANCE47K2R11.R60 52RESISTANCE100K6DE20.DE19.R38.R40.R44.R19 53RESISTANCE220K1R*58 54RESISTANCE470K1R36 55RESISTANCE510K1R67 56RESISTANCE560K1R58 57RESISTANCE1M1R35 58INDUCTOR33UH1L14 59INDUCTOR2.2NH2L11.L12 60INDUCTOR10NH4L5.L2.L3.L9 61INDUCTOR22NH3DE21.L7.L4 62(0805):1UH3L13.L8.L10 63INDUCTOR100UH 64TRANSISTOR2SC35851Q5 65TRANSISTORR253Q4.Q6.Q8 66TRANSISTORM61Q3 67TRANSISTORL68Q15.Q10.Q2.Q9.Q14.Q7.Q1.DE17 68TRANSISTORBCX1Q11 69TRANSISTORCX1432D1.D2 70DIODEIN58193D6.D4.D5 71DIODE3.3V1D3 72ICLM63021Q17 73IC5711U8 74ICMC45581U10 75ICE031U2 76ICLT13071U7 77ICPIC16C731U3 78CRYSTAL4MHZ1Y2 79CRYSTAL16MHZ1Y1 80FILTER755B1FL 81VRVR10312 82SWITCH1MK1 PDF 文件以 "pdfFactory Pro" 试用版创建 www.pdffactory.com

ADJUSTMENT PROCEDURES 1、 Transmitter Power Adjustment a) Adjust the DC power supply so that 3V is obtained at the battery terminals . Confirm that the power meter , dummy load and output tester are prepared . b) Turn the power on . c) Adjust C54 in this order so that the frequcy become right . d) Then the RF power meter reading should be 10mW when the power is on and at a normal temperature . Then check the current meter reading should be bess than 130mA . 2、 Transmission Deviation Adjustment . a) Set up the unit for the transmission mode . b) Adjust VR1 so that the frequency counter reading is 30 KHz . c) So that the maximum Deviation is +/-30KHz Adjustment setup block diagram . PDF 文件以 "pdfFactory Pro" 试用版创建 www.pdffactory.com

COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. REPORT NO: SZ050818B01-RF FCC ID:TNHU9000C DATE: 10/18/2005 Page 1 of 36 Rev. 00 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 74 SUBPART H REQUIREMENT OF Wireless Microphone MODEL NO.: U-9000C BRAND NAME: N/A FCC ID: TNHU9000C REPORT NO:SZ050818B01-RF ISSUE DATE: October 18, 2005 Prepared for GUANGZHOU DVON PROFESSIONAL AUDIO CO., LTD. TAISHI INDUSTRIAL ESTATE, SHINAN ROAD YUWOTOU TOWN, PANYU, GUANGZHOU CHINA 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: SZ050818B01-RF FCC ID:TNHU9000C DATE: 10/18/2005 Page 2 Rev. 00 VERIFICATION OF COMPLIANCE Applicant: Guangzhou DVON Professional Audio Co., Ltd. Taishi Industrial Estate, Shinan Road Yuwotou Town, Panyu, Guangzhou China Product Description: Wireless Microphone Brand Name: N/A Model Number: U-9000C, U-9000B, U-7000C, U-7000B, U-8000C, U-8000B, DU-1300C, DU-1300B, DU-1360C, DU-1360B, U-116C, U-116B, U-216C, U-216B U-810, LX-7070U, LX-8080U, LX-7070BP Serial Number: N/A File Number: SZ050818b01-RF Date of Test: September 15,2005 ~ October 18, 2005 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 63.4:2003 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 Clinton Kao / Q.A. Manager COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC. COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZ050818B01-RF FCC ID:TNHU9000C DATE: 10/18/2005 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 ..........................................13 7. FREQUENCY TOLERANCE .........................................21 8. EMISSION BANDWIDTH ...........................................25 9. UNWANTED RADIATION .............................................28 APPENDIX 1 PHOTOGRAPHS OF SETUP ..............................................34 COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZ050818B01-RF FCC ID:TNHU9000C DATE: 10/18/2005 Page 4 Rev. 00 1. GENERAL INFORMATION 1.1 Product Description The Guangzhou DVON Professional Audio Co., Ltd. Model: U-9000C (referred to as the EUT in this report). The EUT is a 16 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: 0.00043% (0.005%) B). Communication Type: Voice/Tone only C). Modulation: FM D). Emission type: F3E E). Emission designator: 53K4F3E (2M+2DK, M=14, D=12.7, K=1, Necessary Bandwidth = 53.4 KHz) F). Emission Bandwidth: 63.2 KHz (Limit: 200 KHz) G).Peak Frequency Deviation: 12.6 KHz (Limit<75 KHz) H).Audio Frequency Response: 14 KHz I). Maximum Transmitter Power: 0.13 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 50 dB (Limit 4.11 dB) on any frequency removed from the center of authorized bandwidth by more than 250%) L ). Antenna Designation: Integral M). Power Supply: 3 V dc by battery N). DC Voltage= 2.1 V and DC Current= 13.6 mA into the final stage for normal operation over the power range O). Battery Endpoint: DC 2.1 V P). Operating Frequency Range and Channels Frequency Range: 750.000 MHz – 805.125 MHz CH 01 – 750.000 MHz CH 02 – 753.675 MHz CH 03 – 757.350 MHz CH 04 – 761.025 MHz CH 05 – 764.700 MHz CH 06 – 768.375 MHz CH 07 – 772.050 MHz CH 08 – 775.725 MHz CH 09 – 779.400 MHz CH 10 – 783.075 MHz CH 11 – 786.750 MHz CH 12 – 790.425 MHz CH 13 – 794.100 MHz CH 14 – 797.775 MHz CH 15 – 801.450 MHz CH 16 – 805.125 MHz Q). Effective distance: 80M COMPLIANCE CERTIFICATION SERVICES (SHENZHEN) INC REPORT NO: SZ050818B01-RF FCC ID:TNHU9000C DATE: 10/18/2005 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 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: 2003 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 …

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Compliance Certification Services (Shenzhen) Inc. Report No.: SZ050818B01-RF FCC ID: TNHU9000C Date of Issue: September 14, 2005 APPENDIX 1 PHOTOGRAPHS OF TEST SETUP Radiated Emission Set up Photos Page 28 Rev. 00