2AEKH-T2Wireless Audio Transmitter

1 Table of Content Introduction...........................................................................................................02 Check list..............................................................................................................02 Front view .............................................................................................................03 Rear view ..............................................................................................................03 CAS system ..........................................................................................................04 Install the Dedicated Driver on PC ........................................................................................05 Core Audio Stream Introduction...............................................................................................07 WASAPI Setting.......................................................................................................................08 Setting on Mac OS...................................................................................................................10 Specification ............................................................................................................................10 FCC STATEMENT This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment Note:This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection again st harmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful inerference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipme nt does cause harmful interference to radio or television reception, which can be determined by turning t he equipment off and on, the user is encouraged to try to correct the interference by one or more of the following: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and the receiver. • Connect the equipment into an outlet different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, Human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation. 2 Introduction Thank you for selecting Questyle Audio T2 Transmitter of 5GHz Hi-end Wireless Audio System. The worldwide first Hi-end 5G wireless audio system was born in Questyle Audio. It provides Hi-end sound performance with easiest wireless operation. The system is made up of wireless Transmitter and Wireless Receiver (built-in DAC and Amplifier). The current 2.4GHz wireless HiFi system set people free from the hateful cable decoration , brings an innovation on audio field. But the shortage is that it’s always be interferenced, interrupted or delayed. Questyle 5GHz Wireless Series transmit signal in 5.8GHz frequency, totally get rid of the 2.4GHz frequency interference, achieve more stable transmission. T2 Transmitter support digital input with USB, Coaxial and optical. It can also receive analogue signal through RCA input, with built-in ADC to convert to digital signal for transmission. It’s easy operate, can work automatically after power on. It can wireless transmit signal in 24bit/48KHz, with the FIFO and digital PLL technology, reduce Jitter to undetectable level. Check List T2 Transmitter 1pc Remote Control 1pc AC Adopter 1pc CD-Rom 1pc User Manual 1pc Warranty Card 1pc Specification Digital Input Optical, Coaxial, PCM 44.1K-192K/16-24bit USB input USB type B,3X Clock USB Asynchronous transmission, support Win and Mac OS Analogue Input RCA, max 2Vrms Power Cord DC 5V 6.5mm，Max Current 1A Volume Electric volume, 0.5dB stepping, PW cut memory Input Switch Switch button,PW cut memory Transmitting Frequency 5.8GHz switchable Bit depth 24 bit without compression Max delay 10mS Max support Receivers 8 pcs Dimension 160*120*25MM Front View 3 1) USB input indicator 2) SPDIF input indicator 3) Toslink input indicator 4) Analog input indicator 5) Input select button 6) Volume down 7) Volume up Rear View 1) DC power input 2) Right channel Analog input 3) Left channel Analog input 4) SPDIF input 5) TOSLINK input 6) USB input, type B 4 Remote Control Quick setup 1. Power on T2 Transmitter and R100/R200 Wireless Amplifier 1) T2: Use its adapter to link its DC port with AV power supply. 2) R100/R200: Plug its power cord, and turn on the switch. 3) Pair T2 with R100 or R200. 2. Pairing T2 Transmitter with R100/R200 Wireless Amplifier 1) T2: Long press the “INPUT” button (on front panel) for over 3 seconds, until 4 LED indicators starts flashing (flash lasts for 60 seconds). It means T2 is ready for pairing. Then release the “INPUT” button. 2) R100/R200: There is a “PAIRING” button at R100/R200 bottom chassis. When T2 is ready for pairing, pin the “PARING” button until its front panel LED indicator stop flashing. If it keeps flashing, it means not successfully paired, please pin the button again. 3) When T2 is in “Paring” status, user can continuously pair it with more Receivers. 4) A T2 Transmitter max pair 8pcs Receivers (R100 /R200 can be …

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SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 5.0 Questyle Audio Technology Co.,Ltd Apr 16, 2015 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Questyle Audio Technology Co.,Ltd hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Product name: Wireless Audio Transmitter Model No.: T2 FCC ID: 2AEKH-T2 Sincerely, Client’s signature: Client’s name / title: Alden Zhao / Sales Manager Contact information / address: B804, Jialin Hlghrise, Shennan Avenue 2001, Futian District, Shenzhen, China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 4.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (current) 3.0 4.0 March-26-2015 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 4.0 Questyle Audio Technology Co.,Ltd Apr 16, 2015 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AEKH-T2 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature: Client’s name / title: Alden Zhao / Sales Manager Contact information / address: B804, Jialin Hlghrise, Shennan Avenue 2001, Futian District, Shenzhen, China

Questyle Audio Technology Co.,Ltd To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD FCC ID: 2AEKH-T2 To Whom It May Concern: This letter is to ascertain that Questyle Audio Technology Co.,Ltd (Product name: Wireless Audio Transmitter Model name: T2) has been the units used for conducting FCC compliance testing, the DoC part will be tested by FCC recognized test lab. If you have any question or concerns, pls. contact us. Sincerely, Client’s signature: Client’s name / title: Alden Zhao / Sales Manager Contact information / address: B804, Jialin Hlghrise, Shennan Avenue 2001, Futian District, Shenzhen, China

External Photos

label and label location

Internal Photos Antenna

FCC ID : 2AEKH-T2 1. RF EXPOSURE 1.1. The Requirement System operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission’s guidelines. See Section 15.247(b)(4) and Section 1.1307(b)(1) 1.2. Limit For Maximum Permissible Exposure (MPE) Limits for General Population/ Uncontrolled Exposure F = frequency in MHz, * Plane-wave equivalent power density 1.3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) ( 2 mW/cm) Averaging Time 2 E, 2 H or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 f/1500 30 1500-100,000 1.0 30 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the gain of the 5.8G antenna is 3 dBi, the RF power density can be obtained. 1.4. TEST RESULTS Maximum measured transmitter power TX mode Antenna A Test Frequency （MHz） Minimum Separation Distance (cm) Output Power (dBm) Output Power (mW) Target power (dBm) Antenna Gain (Numeric) Power Density Limit (mW/cm 2 ) Power Density At 20 cm (mW/cm 2 ) Test Results 5736 20.00 5.01 3.170 4 ±2 1.995 1 0.002 Pass 5762 20.00 4.73 2.972 4 ±2 1.995 1 0.002 Pass 5814 20.00 5.91 3.899 4 ±2 1.995 1 0.002 Pass Antenna B Test Frequency （MHz） Minimum Separation Distance (cm) Output Power (dBm) Output Power (mW) Target power (dBm) Antenna Gain (Numeric) Power Density Limit (mW/cm 2 ) Power Density At 20 cm (mW/cm 2 ) Test Results 5736 20.00 8.08 6.427 7 ±2 1.995 1 0.003 Pass 5762 20.00 7.89 6.152 7 ±2 1.995 1 0.003 Pass 5814 20.00 7.93 6.209 7 ±2 1.995 1 0.003 Pass The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure. 1.5. FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, Human proximity to the antenna shall not be less than 20cm(8 inches) during normal operation. Proposed RF exposure safety information to include in User’s Manual.

Report No.: ATE20142049 Page 1 of 60 FCC ID: 2AEKH-T2 ACCURATE TECHNOLOGY CO. LTD APPLICATION CERTIFICATION On Behalf of Questyle Audio Technology Co.,Ltd Wireless Audio Transmitter Model No.: T2 FCC ID: 2AEKH-T2 Prepared for : Questyle Audio Technology Co.,Ltd Address : B804, Jialin Hlghrise, Shennan Avenue 2001, Futian District, Shenzhen, China Prepared by : ACCURATE TECHNOLOGY CO. LTD Address : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd. Science & Industry Park, Nanshan, Shenzhen, Guangdong P.R. China Tel: (0755) 26503290 Fax: (0755) 26503396 Report Number : ATE20142049 Date of Test : Oct 18, 2014-Apr 25, 2015 Date of Report : Apr 25, 2015 Report No.: ATE20142049 Page 2 of 60 FCC ID: 2AEKH-T2 ACCURATE TECHNOLOGY CO. LTD TABLE OF CONTENTS Description Page Test Report Certification 1. GENERAL INFORMATION .......................................................................................................... 5 1.1. Description of Device (EUT) .................................................................................................................... 5 1.2. Description of Test Facility ...................................................................................................................... 6 1.3. Measurement Uncertainty ......................................................................................................................... 6 2. MEASURING DEVICE AND TEST EQUIPMENT ..................................................................... 7 3. OPERATION OF EUT DURING TESTING ................................................................................. 9 3.1. Operating Mode ........................................................................................................................................ 9 3.2. Configuration and peripherals .................................................................................................................. 9 4. TEST PROCEDURES AND RESULTS ....................................................................................... 10 5. 6DB OCCUPIED BANDWIDTH TEST ....................................................................................... 11 5.1. Block Diagram of Test Setup .................................................................................................................. 11 5.2. The Requirement For Section 15.247(a)(1) ............................................................................................ 11 5.3. EUT Configuration on Measurement ..................................................................................................... 11 5.4. Operating Condition of EUT .................................................................................................................. 11 5.5. Test Procedure ........................................................................................................................................ 11 5.6. Test Result .............................................................................................................................................. 12 6. POWER SPECTRAL DENSITY TEST ........................................................................................ 16 6.1. Block Diagram of Test Setup .................................................................................................................. 16 6.2. The Requirement For Section 15.247(e) ................................................................................................. 16 6.3. EUT Configuration on Measurement ..................................................................................................... 16 6.4. Operating Condition of EUT .................................................................................................................. 16 6.5. Test Procedure ........................................................................................................................................ 16 6.6. Test Result .............................................................................................................................................. 17 7. RF CONDUCTED SPURIOUS EMISSIONS TEST ................................................................... 21 7.1. Block Diagram of Test Setup .................................................................................................................. 21 7.2. The Requirement For Section 15.247(d) ................................................................................................ 21 7.3. EUT Configuration on Measurement ..................................................................................................... 21 7.4. Operating Condition of EUT .................................................................................................................. 21 7.5. Test Procedure ........................................................................................................................................ 21 7.6. Test Result .............................................................................................................................................. 21 8. MAXIMUM CONDUCTED (AVERAGE) OUTPUT POWER ................................................. 25 8.1. Block Diagram of Test Setup .................................................................................................................. 25 8.2. The Requirement For Section 15.247(b)(3) ............................................................................................ 25 8.3. EUT Configuration on Measurement ..................................................................................................... 25 8.4. Operating Condition of EUT .................................................................................................................. 25 8.5. Test Procedure ........................................................................................................................................ 25 8.6. Test Res…

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Test Photos