RW2UH101WIRELESS MICROPHONE (TX)

Enping Ding Li Acoustics Technological Co., Ltd. No.1, Lane 3, Dong Feng Rd., Ping Shi Enping of Guang Dong China Tel: 86-750-7186300 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: RW2UH101 Product Name: wireless microphone Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • Schematics • Block diagram • Operational Description • Parts List These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated this MAY Day of 03 20 12 Heng Hui Li By: Signature Printed Title: Director On behalf of : Enping Ding Li Acoustics Technological Co., Ltd. Telephone: 86-750-7119987

Enping Ding Li Acoustics Technological Co., Ltd. No.1, Lane 3, Dong Feng Rd., Ping Shi Enping of Guang Dong China Tel: 86-750-7186300 MAY-3-2012 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Guangzhou Huesent Testing Service Co., Ltd._ NO.91 Dongguanzhuang Road Tianhe district, Guangzhou,Guangdong,China. Sandy__(Name and address，person). to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with Enping Ding Li Acoustics Technological Co., Ltd. ( applicant name and address). NO.B1 DISTRICT NO.2 ENPING ZONE OF THE JIANGMEN INDUSTRY TRANSFER ZONE, ENPING CITY, GUANGDONG, CHINA Dated this MAY-3-2012 20 12 Agency agreement expiration date: By: Heng Hui Li Signature Printed Title: DIRECTOR On behalf of : Enping Ding Li Acoustics Technological Co., Ltd. Telephone: 86-750-7186300

Enping Ding Li Acoustics Technological Co., Ltd. No.1, Lane 3, Dong Feng Rd., Ping Shi Enping of Guang Dong China Tel: 86-750-7186300 Model Specification We, the undersigned, hereby declare that the following radio equipment Wireless Microphone Model: UH-101.UH-104.UH-101B are identified (included circuit diagram, PCB layout & components used without any modification) except the model name and appearance. − Point of contact: Heng Hui Lee TEL: 86-750-7186300 FAX: 86-020-28263237 (Name, telephone and fax number) (Place, date of issue) (Signature / stamp) (Name and title in block letters)

UH-101

FCC ID Label Sample FCC ID ：RW2UH101 This device complies with Part 74 of the FCC Rules

LABEL LOCATION OF UH-101

UH-101

Tune up Procedure I would like to confirm this device does not have tune up information, because the tune up is fixed by the manufacturer. Therefore, the user cannot tune up the device. Sincerely, Signature Phone: 86-750-7186300 E-mail: [email protected]

FCCID: RW2UH101 Report Number: HST201203-0286-FCC Page 1 of 23 Test Report Applicant: Enping Ding Li Acoustics Technological Co., Ltd. Address of Applicant: No.1, Lane 3, Dong Feng Rd., Ping Shi Enping of Guang Dong China Equipment Under Test (EUT): EUT Name: Wireless Microphone Model No.: UH-101, UH-104, UH-101B Trade Mark: Dtech Serial No.: Not supplied by client Standards: FCC PART 74H:2010 Date of Receipt: Feb. 28, 2012 Date of Test: Mar. 1 to Mar. 9, 2012 Date of Issue: Mar. 10, 2012 Test Result : PASS* z In the configuration tested, the EUT complied with the standards specified above. Authorized Signature: Henly Xie / Manager This report refers to the General Conditions for Inspection and Testing Services, printed overleaf This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. This report may only be reproduced and distributed in full. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. All test results in this report can be traceable to National or International Standards. The test report prepare by: Guangzhou Huesent Testing Service Co., Ltd. No.91, Dongguanzhuang Road, Tianhe District, Guangzhou, China. Tel: 86-20-28263298 Fax: 86-20-28263237 http://www.hst.org.cn E-mail: [email protected] REPORT No: HST201203-0286-FCC Page 2 of 23 Contents 1 TEST SUMMARY ............................................................................................... 3 2 GENERAL INFORMATION ................................................................................. 4 2.1 Client Information.........................................................................................................4 2.2 General Description of E.U.T. ...................................................................................... 4 2.3 Details of E.U.T. ...........................................................................................................4 2.4 Description of Support Units ........................................................................................ 4 2.5 Standards Applicable for Testing.................................................................................. 4 2.6 Test Location................................................................................................................ 5 2.7 Deviation from Standards ............................................................................................ 5 2.8 Abnormalities from Standard Conditions...................................................................... 5 3 EQUIPMENTS USED DURING TEST ................................................................ 6 4 TEST RESULTS ................................................................................................. 7 4.1 E.U.T. Operation Condition .......................................................................................... 7 4.2 Test Procedure & Measurement Data .......................................................................... 8 4.2.1 Carrier Radiated Power & Radiated Spurious Emissions ............................... 8 4.2.2 Occupied Bandwidth ..................................................................................... 12 4.2.3 Frequency Stability ....................................................................................... 15 4.2.4 Modulation Characteristics............................................................................ 17 4.2.5 EUT Constructional Details ........................................................................... 20 4.2.6 Antenna Photo .............................................................................................. 23 REPORT No: HST201203-0286-FCC Page 3 of 23 1 Test Summary Test Test Requirement Standard Paragraph Result Carrier Radiated Power FCC Part 2.1046 74.861 e) 1) 54–72, 76–88 & 174–216 MHz bands, 50 mW 470–608 and 614–806 MHz bands, 250 mW PASS Modulation Deviation FCC Part 2.1047 74.861 e) 3) Within 75kHz PASS Frequency Stability FCC Part 2.1055 74.861 e) 4) <0.005% 50 ppm PASS Operating Bandwidth FCC Part 2.1049 c) 74.861 e) 5) Within 200kHz PASS Unwanted Radiation FCC Part 2.1049 c) 74.861 e) 6) within the mask PASS Radiated Spurious Emission FCC Part 2.1053 74.861 d) 3) < 43+10lgP(W) dB PASS Remark: ♣The EUT has one channel, which is located in the range 614.200 MHz to 697.800MHz . Only test result of a sample in channels 614.2 MHz, 662.624 MHz and 697.8 MHz were recorded in this report. REPORT No: HST201203-0286-FCC Page 4 of 23 2 General Information 2.1 Client Information Applicant: Enping Ding Li Acoustics Technological Co., Ltd. Address of Applicant: No.1, Lane 3, Dong Feng Rd., Ping Shi Enping of Guang Dong China 2.2 General Description of E.U.T. EUT Name: Wireless Microphone Item No.: UH-101, UH-104, UH-101B Tested UH-101, since the other models are electrical identical to UH-101 except the model No. and the outlook. Serial No.: Not supplied by client 2.3 Details of E.U.T. Power Supply: 3.0Vdc Battery (1.5V*2 AA batteries ) Main Function: Wireless microphone system with an associated receiver for transmitting voice. The final amplifier Collector Voltage and Collector Current are 0.3V & 3.5mA respectively. Necessary Bandwidth: 2M+2DK= 2 x 70kHz + 2 x 20kHz x 1.0 = 180 kHz 16 channels for each microphone; Modulation: F3E; Antenna Type: Fixed; Gained: 0 dBi 2.4 Description of Support Units Connect the EUT to mains power, and then test the EUT with signal generator. 2.5 Standards Applicable for Testing The standard used was FCC P…

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