2ADCUUH-T3Transmitter

91110 REAR PANEL 124 378 SINGLE CHANNEL SYSTEM 1234 5678 DUAL CHANNEL SYSTEM 13254 23 5 174.2-215.8MHz

DTECH AUDIO COMPANY LIMITED No. B1 Enping District Zone II, Jiangmen Industrial Transfer District, Guangdong, China Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ADCUUH-T3 Product Name:Transmitter 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:  Schematics  Block diagram  Operational Description and Tune up 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 10 Day of Oct 20 14 By: Signature Printed Title: Manager On behalf of : Telephone: 86-0750-7186344 Richard Lee Schematics and BOM

DTECH AUDIO COMPANY LIMITED No. B1 Enping District Zone II, Jiangmen Industrial Transfer District, Guangdong, China Tel:86-0750-7186300 Aug-31-2012 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 Guangdong Huesent Testing & Inspection Technology Co., Ltd.._ NO.91 Dongguanzhuang Road Tianhe district, Guangzhou,Guangdong,China. Sandy__(Name and addressˈperson). 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 DTECH AUDIO COMPANY LIMITED ( applicant name and address). No. B1 Enping District Zone II, Jiangmen Industrial Transfer District, Guangdong, China Dated this OCT10 20 14 Agency agreement expiration date: By: Signature Printed Title: On behalf of : Telephone: Tel:86-0750-7186344 Richard Lee

UH-T3

FCC ID Label Sample FCC ID : 2ADCUUH-T3 This device complies with part 74 of the FCC Rules

LABEL LOCATION：UH-T3

FCCID: 2ADCUUH-T3 Report Number: HST201409-3656-FCC Page 1 of 21 Test Report Applicant:DTECH AUDIO COMPANY LIMITED Address of Applicant: No. B1 Enping District Zone II, Jiangmen Industrial Transfer District, Guangdong, China Equipment Under Test (EUT): EUT Name: Transmitter Model No.: UH-T3 Trade Mark: N/A Serial No.: Not supplied by client Standards: FCC PART 74H:2010 Date of Receipt: Sep. 25, 2014 Date of Test: Sep. 25 to Sep. 30, 2014 Date of Issue: Oct. 9, 2014 Test Result : PASS*  In the configuration tested, the EUT complied with the standards specified above. Tested by: Sandy Yu / EMC Engineer Authorized Signature: Henly Xie / Manager, Representative of the Lab 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: Guangdong Huesent Testing & Inspection Technology 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: HST201409-3656-FCC Page 2 of 21 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 ....................................................................................... 11 4.2.3 Frequency Stability.......................................................................................... 14 4.2.4 Modulation Characteristics.............................................................................. 16 4.2.5 Photographs.................................................................................................... 19 Radiated Emission Test Setup.............................................................................................. 19 4.2.6 EUT Constructional Details ............................................................................. 20 4.2.7 Antenna Photo................................................................................................ 21 REPORT No: HST201409-3656-FCC Page 3 of 21 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 174.200 MHz to 215.800MHz . Only test result of sample of Transmitter in channels 174.2 MHz, 200.2 MHz and 215.8 MHz were recorded in this report. REPORT No: HST201409-3656-FCC Page 4 of 21 2 General Information 2.1 Client Information Applicant: DTECH AUDIO COMPANY LIMITED Address of Applicant: No. B1 Enping District Zone II, Jiangmen Industrial Transfer District, Guangdong, China 2.2 General Description of E.U.T. EUT Name: Transmitter Item No.: Listed on the 1 rd page Serial No.: Not supplied by client 2.3 Details of E.U.T. Power Supply: 3Vdc by two 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 50 kHz + 2 x 20kHz x 1.0 = 140 kHz 16 channels for each microphone; Modu…

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1.1.1 Photographs Radiated Emission Test Setup 30MHz - 1GHz 1GHz – 2.16GHz