ZXZWFA02WiFi Multiroom Audio Adapter


     
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Dayton Audio Division of Parts Express 725 Pleasant Valley Rd Springboro, Ohio 45066 USA Confidentiality Request Letter Page 1 of 1 Rev 2.0 November 18, 2015 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Permanent Confidentiality Request Confidentiality Request regarding application for certification of FCC ID:ZXZWFA02 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Operational Description - Schematic 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: Rich Taylor / Marketing Manager Contact information / address: 725 Pleasant Valley Rd Springboro, Ohio 45066 USA TEL: 937-743-3000 FAX: 937-743-1677 E-mail: [email protected]

Dayton Audio Division of Parts Express 725 Pleasant Valley Rd Springboro, Ohio 45066 USA Date: November 18, 2015 Subject: Ad Hoc Mode Function Declaration FCC ID:ZXZWFA02 To Whom it may concern, This device is acting as slave and operating in the 2.4 GHz (2412 – 2462 MHz) band. the operating frequency not able to operate on non-US frequencies. The EUT doesn’t support the Ad-hoc mode. Please contact the one signed below or the authorized agent for this filing. Thank you. Regards, Client’s signature: Client’s name / title: Rich Taylor / Marketing Manager Contact information / address: 725 Pleasant Valley Rd Springboro, Ohio 45066 USA TEL: 937-743-3000 FAX: 937-743-1677 E-mail: [email protected]

FCC Certification Label FCC ID:ZXZWFA02 Label Location on EUT label size:high 1.5cm, Wide:3.0 cm EUT View/ FCC ID Label Location Tra de na me: Model Number:WFA02

Internal Photo WIFI Antenna

1 Maximum Permissible Exposure report For Dayton Audio Division of Parts Express 725 Pleasant Valley Rd Springboro, Ohio 45066 USA FCC ID:ZXZWFA02 Trade: This Report Concerns: Original Report Equipment Type: WiFi Multiroom Audio Adapter Test Engineer: Lisa Chen Report No.: BSL20151118-5 Receive EUT Date/Test Date: November 01, 2015/ November 01- November 18, 2015 Reviewed By: Mike Moo Prepared By: BSL Testing Co.,LTD. NO. 24, ZH Park, Nantou, Shenzhen, 518000 China Tel: 86- 755-26508703 Fax: 86- 755-26508703 2 1.§ 15.247 (i) and §1.1307 (b) (1) – Maximum Permissible exposure (MPE) 1.1 Standard Applicable According to subpart 15.247 (i) and subpart 1.1307 (b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minute) Limits for General Population/Uncontrolled Exposure 0.3–3.0 614 1.63 *(100) 30 3.0–30 824/f 2.19/f *(180/f2) 30 30–300 27.5 0.073 0.2 30 300–1500 / / f/1500 30 1500–100,0 00 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density 1.2 Test Data Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S = PG/4πR² S: Power density, in mW/cm² P: Power input to the antenna, in mW G: numeric gain of the antenna R: distance to the center of the antenna, in cm 3 802.11b Mode Maximum AV output power at antenna input terminal (dBm): 15.87 Maximum AV output power at antenna input terminal (mW): 38.64 Prediction distance (cm): 20 Prediction frequency (MHz): 2462 Antenna Gain, typical (dBi): 0 Maximum Antenna Gain (numeric): 1 Power density at predication frequency and distance (mW/cm 2 ): 0.0077 MPE limit for the predication frequency (mW/cm 2 ): 1.0 802.11g Mode Maximum AV output power at antenna input terminal (dBm): 14.47 Maximum AV output power at antenna input terminal (mW): 27.99 Prediction distance (cm): 20 Prediction frequency (MHz): 2437 Antenna Gain, typical (dBi): 0 Maximum Antenna Gain (numeric): 1 Power density at predication frequency and distance (mW/cm 2 ): 0.0056 MPE limit for the predication frequency (mW/cm 2 ): 1.0 802.11n Mode Maximum AV output power at antenna input terminal (dBm): 14.08 Maximum AV output power at antenna input terminal (mW): 25.59 Prediction distance (cm): 20 Prediction frequency (MHz): 2462 Antenna Gain, typical (dBi): 0 Maximum Antenna Gain (numeric): 1 Power density at predication frequency and distance (mW/cm 2 ): 0.0051 MPE limit for the predication frequency (mW/cm 2 ): 1.0 1.3 Test Result The device is compliant with the requirement MPE limit of General Population/Uncontrolled Exposure at predication frequency 1.0 mW/cm2 .And the precaution is outlined in the user’s manual to prevent to high level of RF energy.

FCC PART 15.247 EMI MEASUREMENT AND TEST REPORT For Dayton Audio Division of Parts Express 725 Pleasant Valley Rd Springboro, Ohio 45066 USA FCC ID:ZXZWFA02 Trade: This Report Concerns: Original Report Equipment Type: WiFi Multiroom Audio Adapter Test Engineer: Lisa Chen Report No.: BSL20151118-1 Receive EUT Date/Test Date: November 01, 2015/ November 01- November 18, 2015 Reviewed By: Mike moo Prepared By: BSL Testing Co.,LTD. NO. 24, ZH Park, Nantou, Shenzhen, 518000 China Tel: 86- 755-26508703 Fax: 86- 755-26508703 FCC ID:ZXZWFA02 Page 2/47 TABLE OF CONTENTS 1. GENERAL INFORMATION ....................................................................................................4 1.1. Report information ............................................................................................................4 1.2. Measurement Uncertainty .................................................................................................4 2. PRODUCT DESCRIPTION ......................................................................................................5 2.1. EUT Description ...............................................................................................................5 2.2. Block Diagram of EUT Configuration..............................................................................6 2.3. Support Equipment List ....................................................................................................6 2.4. Test Conditions .................................................................................................................6 3. TEST RESULTS SUMMARY ...................................................................................................7 Modifications ................................................................................................................................7 4. TEST EQUIPMENT USED .......................................................................................................8 5. §15.203 - ANTENNA REQUIREMENT ...................................................................................9 5.1. Standard Applicable..........................................................................................................9 5.2. Antenna Connector Construction......................................................................................9 5.3. Result ................................................................................................................................9 6. §15.207 - CONDUCTED EMISSIONS....................................................................................10 6.1. Applicable Standard........................................................................................................10 6.2. Test Procedure ................................................................................................................10 6.3. Conducted Power line Emission Limits..........................................................................10 6.4. Block Diagram of Test Setup..........................................................................................10 6.5. Conducted Power Line Test Result.................................................................................11 7. §15.209, §15.205, §15.247(D) - SPURIOUS EMISSIONS .....................................................13 7.1. Test Equipment ...............................................................................................................13 7.2. Test Procedure ................................................................................................................13 7.3. Radiated Test Setup ........................................................................................................13 7.4. Radiated Emission Limit.................................................................................................15 7.5. Radiated Emission Test Result .......................................................................................16 7.6. Test Equipment ...............................................................................................................21 7.7. Test Requirement: ...........................................................................................................21 7.8. Limit:...............................................................................................................................21 7.9. Test Setup........................................................................................................................21 7.10. Test Result ......................................................................................................................21 8. §15.247(A) (2) – 6DB BANDWIDTH TESTING....................................................................28 8.1. Test Equipment ...............................................................................................................28 8.2. Test Procedure ................................................................................................................28 8.3. Applicable Standard........................................................................................................28 8.4. Test Result:Pass. .............................................................................................................28 9. §15.247(B) (3) - MAXIMUM OUTPUT POWER ..................................................................35 9.1. Test Equipment ...............................................................................................................35 9.2. Test Procedure ................................................................................................................35 9.3. Applicable Standard........................................................................................................35 9.4. Test Result ....................................................................................................................…

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Conducted emissions test Radiated emissions test