VYY-DC1673Emitter

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 NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. July 29, 2015 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Emitter Model name:DC1673 FCC ID: VYY-DC1673 Sincerely, Qiwei Zhang / Manager NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Address: Loutou industrial area, Zhenhai Ningbo, Zhejiang, China Telephone: 86-574-86571666 Fax : 86-574-86580685 E-mail: [email protected]

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 NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. July 29, 2015 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: VYY-DC1673 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, Qiwei Zhang / Manager NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Address: Loutou Industrial Area, Zhenhai, Ningbo, Zhejiang,China Telephone: 86-574-86571666 Fax : 86-574-86580685 E-mail: [email protected]

External photos:

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TRF No.: FCC 15.231/A Page 1 of 21 Report No.: ES150710110E Ver. 1.0 Access to the World ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT T OF Emitter MODEL No.: DC1673 Trademark: N/A FCC ID:VYY-DC1673 REPORT NO: ES150710110E ISSUE DATE: August 11, 2015 Prepared for NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Loutou Industrial Area, Zhenhai, Ningbo, Zhejiang,China Prepared by SHENZHEN EMTEK CO., LTD Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China TEL: 86-755-26954280 FAX: 86-755-26954282 TRF No.: FCC 15.231/A Page 2 of 21 Report No.: ES150710110E Ver. 1.0 Access to the World VERIFICATION OF COMPLIANCE Applicant: NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Loutou Industrial Area, Zhenhai, Ningbo, Zhejiang,China Manufacturer: NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Loutou Industrial Area, Zhenhai, Ningbo, Zhejiang,China Product Description: Emitter Model Number: DC1673 Serial Number: N/A File Number: ES150710110E Date of Test: June 22, 2015 to July 24, 2015 We hereby certify that: The above equipment was tested by SHENZHEN EMTEK CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with radiated emission limits of FCC Rules Part 15.231. The test results of this report relate only to the tested sample identified in this report. Date of Test : June 22, 2015 to July 24, 2015 Prepared by : Jack Li/Editor Reviewer : Joe Xia/Supervisor Approve & Authorized Signer : Lisa Wang/Manager TRF No.: FCC 15.231/A Page 3 of 21 Report No.: ES150710110E Ver. 1.0 Access to the World Table of Contents 1. GENERAL INFORMATION ................................................................................................... 4 1.1. PRODUCT DESCRIPTION ........................................................................................................................ 4 1.2. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 4 1.3. TEST METHODOLOGY ............................................................................................................................. 4 1.4. SPECIAL ACCESSORIES .......................................................................................................................... 4 1.5. EQUIPMENT MODIFICATIONS ................................................................................................................. 4 1.6. MEASUREMENT UNCERTAINTY .............................................................................................................. 5 1.7. TEST FACILITY ........................................................................................................................................ 5 2. SYSTEM TEST CONFIGURATION ..................................................................................... 6 2.1. EUT CONFIGURATION ............................................................................................................................ 6 2.2. EUT EXERCISE ....................................................................................................................................... 6 2.3. TEST PROCEDURE .................................................................................................................................. 6 2.4. DESCRIPTION OF TEST MODES .............................................................................................................. 6 2.5. SUMMARY OF TEST RESULTS ................................................................................................................ 6 2.6. DESCRIPTION OF SUPPORT UNITS ........................................................................................................ 6 3. RADIATED EMISSION TEST ............................................................................................... 7 3.1. MEASUREMENT PROCEDURE ................................................................................................................. 7 3.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)....................................................................... 7 3.3. MEASUREMENT EQUIPMENT USED: ...................................................................................................... 8 3.4. RADIATED EMISSION LIMIT ..................................................................................................................... 8 3.5. CALCULATION OF AVERAGE FACTOR .................................................................................................. 10 3.6. MEASUREMENT RESULT ...................................................................................................................... 13 4. TRANSMISSION REQUIREMENT .................................................................................... 17 4.1. REQUIREMENT ...................................................................................................................................... 17 4.2. TEST SET-UP ...................................................................................................................................... 17 4.3. MEASUREMENT EQUIPMENT USED: .................................................................................................... 17 4.4. TEST PROCEDURE ................................................................................................................................ 17 4.5. TEST DATA ............................................................................................................................................ 17 5. BANDWIDTH TEST .............................................................................................................. 19 5.1. ME…

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