SVNDH-DB86IDoorbell

● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Please take attention that changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. ● ● ● ● ● ● ● ● ● ● ● ●

Zhejiang Dahua Vision Technology Co., Ltd Date: 2022-10-24 Declaration Letter about Limited Use To whom it may concern, WE (Zhejiang Dahua Vision Technology Co., Ltd) HEREBY DECLARED THAT Our product Product Description: Doorbell Model No: DH-DB86I-USA FCC ID: SVNDH-DB86I The Bluetooth function integrated in RF chip MT7668BSN in this device has been disabled by software. Any modification will be highlighted on the release letter, and the impact analysis will also have a review. Verification procedure and verification results will be performed based on the release letter and impact analysis report. Name (Printed): Yolanda chen Signature: Title: Certified Manager On behalf of Company: Zhejiang Dahua Vision Technology Co., Ltd Telephone: 0571-28822025

Applicant Declaration Applicant Declaration Rev:0.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Zhejiang Dahua Vision Technology Co., Ltd Address No.1199, Bin'an Road, Binjiang District, Hangzhou, 310053, P.R. China Grantee Code SVN FCC ID SVNDH-DB86I Authorized Contact Name Yolanda chen Contact Email chen [email protected] Contact Phone 0571-28822025 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Applicant Signature: Date: 2022-10-15 Print Name: Yolanda chen Title: Certified Manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

Zhejiang Dahua Vision Technology Co., Ltd C urrent Date 2022-10-15 To : SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. No. 588 West Jindu Road, Songjiang District, Shanghai, China. 201612 Dear Sir/Madam, Subject: Declaration Letter about Identity of Products *W E, Zhejiang Dahua Vision Technology Co., Ltd, HEREBY DECLARED THAT O ur product: Product Description: Doorbell And the models below : Model No.: DH-DB86I-USA, DH-DB86I-CAN, DB86I-USA, DB86I-CAN, DB86I Manufacturer’s Name: Zhejiang Dahua Vision Technology Co., Ltd Manufacturer’s Address:No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China wi th the model(s) below which samples we chose to be tested by SGS Model No.: DH-DB86I-USA Manufacturer’s Name: Zhejiang Dahua Vision Technology Co., Ltd Manufacturer’s Address:No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China *Except that the model number and appearance deviation, are identical with the original product as follows: Note: The definition of identical should be “electrically identical”. A device will be considered to be electrically identical if no changes are made to the devices’ schematics, board layouts, component layouts, chip sets, resistors and all other electrical aspects of the device are identical. Sincerely, Si gnature: Printed Name : Yolanda chen Position/Title : Certified Manager Contact Number: 0571-28822025

Zhejiang Dahua Vision Technology Co., Ltd Date: 2022-10-15 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: SVNDH-DB86I To whom it may concern: We, the undersigned, hereby authorize Parlam Zhan to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our 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 SGS North America, Inc., still resides with Zhejiang Dahua Vision Technology Co., Ltd. This authorization is valid until further written notice from the applicant. Name (Printed): Yolanda chen Title: Certified Manager Signature: On behalf of Company: Zhejiang Dahua Vision Technology Co., Ltd Telephone: 0571-28822025

Zhejiang Dahua Vision Technology Co., Ltd To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: Zhejiang Dahua Vision Technology Co., Ltd No.1199, Bin'an Road, Binjiang District, Hangzhou, 310052, P.R. China Regarding: Confidentiality Request regarding application for FCC ID: SVNDH-DB86I LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions NII Software Security Info The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Signature: Printed Name (on file with the FCC associated with the Grantee Code): Yolanda chen Title: Certified Manager Company Name: Zhejiang Dahua Vision Technology Co., Ltd

Compliance Certification Services (Kunshan) Inc. P age: 1 of 4 External Photos for KSCR2210001890AT Test Model No: DH-DB86I-USA Compliance Certification Services (Kunshan) Inc. Page: 2 of 4 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 4 Compliance Certification Services (Kunshan) Inc. Page: 4 of 4

Remark:It’s hard to put FCC statement on the product due to device’s irregular appearance. FCC statement will be placed in the user manual which the device is marketed.

Compliance Certification Services (Kunshan) Inc. Page: 1 of 12 Internal Photos for KSCR2210001890AT Test Model No: DH-DB86I-USA Compliance Certification Services (Kunshan) Inc. Page: 2 of 12 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 12 Compliance Certification Services (Kunshan) Inc. Page: 4 of 12 Compliance Certification Services (Kunshan) Inc. Page: 5 of 12 Compliance Certification Services (Kunshan) Inc. Page: 6 of 12 Compliance Certification Services (Kunshan) Inc. Page: 7 of 12 Compliance Certification Services (Kunshan) Inc. Page: 8 of 12 Compliance Certification Services (Kunshan) Inc. Page: 9 of 12 Compliance Certification Services (Kunshan) Inc. Page: 10 of 12 Compliance Certification Services (Kunshan) Inc. Page: 11 of 12 Compliance Certification Services (Kunshan) Inc. Page: 12 of 12

Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 1 of 16 Eric Lin Laboratory Manager 1 Cover Page RF Exposure Evaluation Report Application No.: KSCR2210001890AT FCC ID: SVNDH-DB86I Applicant: Zhejiang Dahua Vision Technology Co., Ltd Address of Applicant: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China Manufacturer: Zhejiang Dahua Vision Technology Co., Ltd Address of Manufacturer: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China Equipment Under Test (EUT): EUT Name: Doorbell Model No.: DH-DB86I-USA; DH-DB86I-CAN; DB86I-USA; DB86I-CAN; DB86I Standard(s) : FCC Rules 47 CFR §2.1091 KDB 447498 D04 interim General RF Exposure Guidance v01 Date of Receipt: 2022-10-10 Date of Test: 2022-10-12 to 2022-10-18 Date of Issue: 2022-10-20 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 2 of 16 Revision Record Version Description Date Remark 00 Original 2022-10-20 / Authorized for issue by: Eric Liu /Project Engineer Eric Lin /Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 3 of 16 2 Contents Page 1 COVER PAGE .................................................................................................................................... 1 2 CONTENTS ........................................................................................................................................ 3 3 GENERAL INFORMATION ................................................................................................................ 4 3.1 GENERAL DESCRIPTION OF E.U.T. ................................................................................................ 4 3.2 DETAILS OF E.U.T. ....................................................................................................................... 4 3.3 TEST LOCATION ............................................................................................................................ 6 3.4 TEST FACILITY .............................................................................................................................. 6 4 FCC RADIOFREQUENCY RADIATION EXPOSURE LIMITS .......................................................... 7 4.1 BLANKET 1 MW BLANKET EXEMPTION ........................................................................................... 7 4.2 MPE-BASED EXEMPTION .............................................................................................................. 7 4.3 SAR-BASED EXEMPTION ............................................................................................................... 8 5 MEASUREMENT AND CALCULATION .......................................................................................... 11 5.1 MAXIMUM TRANSMIT POWER ....................................................................................................... 11 5.2 RF EXPOSURE CALCULATION ...................................................................................................... 15 Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 4 of 16 3 General Information 3.1 General Description of E.U.T. Power supply: DC 3.7V by rechargeable lithium battery charged by 16-24 VAC or DC 5V 2A by USB port Battery Model: 1S1P 652023P Rated Voltage: 3.7V Capacity: 0.2Ah Energy: 0.74Wh Charging Voltage: 4.2V 3.2 Details of E.U.T. 2.4G Operation Frequency: 802.11b/g/n(HT20): 2412MHz to 2462MHz;802.11n(HT40): 2422MHz to 2452MHz Modulation Type: 802.11b: DSSS (CCK, DQPSK, DBPSK);802.11g/n: OFDM (64QAM, 16QAM, QPSK, BPSK) Number of Channels: 802.11b/g/n(HT20):11;802.11n(HT40):7 Channel Spacing: 5MHz Antenna Type: FPC antenna Antenna Gain: Antenna 1:1.68dBi; (Provided by the manufacturer) Antenna 2:3.42dBi, (Provided by the manufacturer) Directional gain:5.65dBi 5G Operation Frequency (20MHz): U-NII-1: 5180-5240MHz; U-NII-2A: 5260-5320MHz; U-NII-2C: 5500- 5700MHz; U-NII-3: 5745-5825MHz Operation Frequency (40MHz): U-NII-1: 5190-5230MHz; U-NII-2A: 5270-5310MHz; U-NII-2C: 5510- 5670MHz; U-NII-3: 5755-5795MHz Operation Frequency (80MHz): U-NII-1: 5210MHz; U-NII-2A: 5290MHz; U-NII-2C: 5530-5610MHz; U-NII-3: 5775MHz Modulation Type: 802.11a: OFDM (64QAM, 16QAM, QPSK, BPSK); 802.11n: OFDM (BPSK, Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 5 of 16 QPSK, 16QAM, 64QAM); 802.11ac: OFDM (BPSK, QPSK, 16QAM, 64QAM, 256QAM) Channel Spacing: 802.11a/n(HT20)/ac(HT20): 20MHz; 802.11n(HT40)/ac(VHT40): 40MHz; 802.11ac(VHT80): 80MHz DFS Function: Slave without Radar detection TPC Function: Without TPC function Antenna Type: FPC antenna Antenna Gain: Antenna 1 U-NII-1:1.31dBi; (Provided by manufacturer) U-NII-2A:1.64dBi; (Provided by manufacturer) U-NII-2C: 2.99dBi; (Provided by manufacturer) U-NII-3:1.31dBi; (Provided by manufacturer) Antenna 2; U-NII-1: 1.41dBi (Provided by manufacturer) U-NII-2A: 2.63dBi (Provided by manufacturer) U-NII-2C: 2.33dBi (Provided by manufacturer) U-NII-3: -1.67dBi (Provided by manufacturer) Directional gain U-NII-1:4.37dBi(Provided by manufacturer) Directional gain U-NII-2A: 5.16dBi (Provided by manufacturer) Directional gain U-NII-2C:5.68dBi (Provided by manufacturer) Directional gain U-NII-3:2.96dBi (Provided by manufacturer) Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189003 Page: 6 of 16 3.3 Test Location All tests were performed at: Compliance Certification Services (Kunshan) Inc. No.10 Weiye Rd, Innovation park, Eco&Tec, Development Zone, Kunshan City, Jiangsu, China. Tel: +86 512 5735 5888 Fax: +86 512 5737 0818 No tests were sub-contracted. Note: 1.SGS is not responsible for wrong test results due to incorrect information (e.g. max. clock frequency, highest internal frequency, antenna gain, cable loss, etc ) is provided by the applicant. (if applicable). 2.SGS is not responsibl…

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Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189001 Page: 1 of 177 Eric Lin Laboratory Manager TEST REPORT Application No.: KSCR2210001890AT FCC ID: SVNDH-DB86I Applicant: Zhejiang Dahua Vision Technology Co., Ltd Address of Applicant: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China Manufacturer: Zhejiang Dahua Vision Technology Co., Ltd Address of Manufacturer: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China Equipment Under Test (EUT): EUT Name: Doorbell Model No.: DH-DB86I-USA; DH-DB86I-CAN; DB86I-USA; DB86I-CAN; DB86I ♣ ♣ Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2022-10-10 Date of Test: 2022-10-12 to 2022-10-18 Date of Issue: 2022-10-20 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189001 Page: 2 of 177 Revision Record Version Description Date Remark 00 Original 2022-10-20 / Authorized for issue by: Eric Liu /Project Engineer Eric Lin /Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189001 Page: 3 of 177 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Conducted Peak Output Power ANSI C63.10 (2013) Section 11.9.2 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 1 5.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Declaration of EUT Family Grouping: Note: There are series models mentioned in this report, and they are the Identical in electrical and electronic characters. Only the model DH-DB86I-USA was tested since their differences were the model number and appearance. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR221000189001 Page: 4 of 177 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 TEST SUMMARY ....................................................................................................................................... 3 3 CONTENTS ................................................................................................................................................ 4 4 GENERAL INFORMATION ........................................................................................................................ 6 4.1 DETAILS OF E.U.T. ............................................................................................................................... 6 4.2 DESCRIPTION OF SUPPORT UNITS ......................................................................................................... 6 4.3 MEASUREMENT UNCERTAINTY .............................................................................................................. 7 4.4 TEST LOCATION .................................................................................................................................... 8 4.5 TEST FACILITY ...................................................................................................................................... 8 4.6 DEVIATION FROM STANDARDS ............................................................................................................... 8 4.7 ABNORMALITIES FROM STANDARD CONDITIONS ..................................................................................... 8 5 EQUIPMENT LIST ...................................................................................................................................... 9 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ............................................................................... 10 6.1 ANTENNA REQUIREMENT .................................................................................................................... 10 6.1.1 Test Requirement: ....................................................................................................................... 10 6.1.2 Conclusion ................................................................................................................................... 10 7 RADIO SPECTRUM MATTER TEST RESULTS ..................................................................................... 11 7.1 CONDUCTED EMISSIONS AT AC POWER LINE (150KHZ-30MHZ) ........................................................... 11 7.1.1 E.U.T. Operation .......................................................................................................................... 11 7.1.2 Test Mode Description ................................................................................................................. 11 7.1.3 Test Setup Diagram ..................................................................................................................... 1…

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SHANGHAIJIESHENGKANG COMMUNICATIONENGINEERING CO.,LTD SPECIFICATIONFORAPPROVAL 2020/12/14 （1）Sampleantennadescription Sampleantennadescription Manufacturer'sInternalID Ex：2H073C-36 category EX：WIFI Band EX：2400-2500M 5000-5850M morphology Ex：PCBBuilt-inantenna polarization EX：Linepolarization Vswr EX：≤1.5@2400-2500M ≤3.8@5000-5850M Efficiency EX：≥42%@2400-2500M ≥25%@5000-5850M Gain EX：0.17-1.68dBi@2400-2500M 0.51-2.99dBi@5150-5850M Radiationpattern EX：Pleasefindattached connectortype Ex：/ Connectorproperties Ex：/ Active/qualifiedive Ex： Colorandmaterial Ex：Green/PI Antsize Ex:23*9.8（mm） Cabletypeandsize Ex：/ Cableloss Ex：/ Worktemperature Ex：-40~85°C Storagetemperature Ex ：22~55°C Powercapacity Ex：/ waterproofinggrade Ex：/ Saltspraygrade Ex：24H Highandlowtemperature Pleasefindattached Vibration、fall Ex：/ Suctiontest EX:无 Characteristicimpedance EX: 50Ω Contactimpedance EX: 0Ω Mediumpressure EX: 500V radiationdirection EX: Verticalandhorizontal version T:A （2）Samplepictures Productdrawings （3）Antennatestenvironmentdiagram （4）S11 (5)Radiationpattern E&H： E1 E2 H 3DdirectionImage： nothing （6）Efficiency&Gain Gain&Efficiency frequency (MHz) gain (dB) efficiency 24001.6849.91% 24201.5849.64% 24401.1842.56% 24501.1942.26% 24801.2745.76% 25000.1744.07% 51500.5132.74% 52001.0635.62% 52401.3136.89% 53201.6437.53% 54001.9239.28% 54802.9941.71% 55602.5837.26% 56402.1836.02% 57201.9132.03% 58001.3128.84% 58500.7125.36% (7)Saltspraytestreport： SaltspraytestreportN0.：20200605002 Theproductname Built-inantenna Productionbatches2020.6.5 productID2H073C-36Numberoftests3PCS Inspectiondate2020.6.5Testdate2020.6.5 TestprojectRequired standards Actual value determina tion TestprojectRequired standards Actual value determinati on Typeofsaltspray test NSSneutralNSSneutr al qualifiedtesttime24H24Hqualified PHvalueofbrine6.5-7.27.1qualifiedSaltspraybox temperature 35°C35°C qualified SpraywayContinuous spray Continuo usspray qualifiedSaltfog settlement 1-2ml1.7qualified Saltwater composition 5%NaCL5%NaCLqualifiedCompressedair pressure 1± 0.1Kg/cm 2 1.0kg/ cm 2 qualified Saturation temperature 47°C47°C qualifiedSpecimen placementAngle 90 o 90 o qualified Testobservation time Resultstherecord 8HNocorrosionmottlingwasobserved 16HNocorrosionmottlingwasobserved 24HNocorrosionmottlingwasobserved determination Determinationaccordingtothenationalstandard5944-86ratingmethodtodetermine,grade9oraboveforqualified Determinethe results □qualified□unqualified TestTianFenReviewSunYueyong note： ThecommonlyusedsaltspraytestmethodsincludeNSSneutralsaltspraytest,AASSsaltspraytest,CASSCupricacetic acidacceleratedtest √ （8）Highandlowtemperaturetestreport： testcontent TestprojectTestconditionsStandardofdeterminationNumberoftestdetermination 1.High temperature test placedat85°C±2°Cfor 4h , normaltemperatureplacedafter 2h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified 2.low temperature test placedat40°C±2°Cfor 4h, normaltemperatureplacedafter 2h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified 3.Temperature cyclingtest Putitinanenvironmentof 85°C±2°Cfor30minutes, takeitoutandputitinroom temperaturefor5minutes;It wasplacedat-40±2°Cfor 30minutes,thenremoved andplacedatroom temperaturefor5minutes. Aftersuch5cycles,thedimensions meetthenormalrequirements, andtheappearanceofno deformation,warping,degumming andotherabnormalphenomena, theperformanceisnormal.。 3PCSqualified 4.Heat resistanceheat Meetthetemperature40°C ±2°C,humidity93±2%RH environmentplacedXXH； normaltemperatureplacedafter 4h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified final conclusion ■qualified□unqualified□ （9）Packing：

SHANGHAIJIESHENGKANG COMMUNICATIONENGINEERING CO.,LTD SPECIFICATIONFORAPPROVAL 2020/12/14 （1）Sampleantennadescription Sampleantennadescription Manufacturer'sInternalID Ex：2H073C-37 category EX：WIFI Band EX：2400-2500M 515 0-58 50M morphology Ex：PCB Built-inantenna polarization EX：Line polarization Vswr EX：≤1.6@2400-2500M ≤4.8@515 0-58 50M Efficiency EX：≥60%@2400-2500M ≥22%@515 0-58 50M Gain Radiationpattern EX：Please find attached connectortype Ex：/ Connectorproperties Ex：/ Active/qualifiedive Ex： Colorand material Ex：Green/PI Ant size Ex：23*8.8（mm） Cabletypeand size Ex：/ Cableloss Ex：/ Worktemperature Ex：-40~85°C Storagetemperature Ex：/ Powercapacity Ex ：22~55°C waterproofinggrade Ex：/ Salt spraygrade Ex：24H Highand low temperature Ex：Pleasefind attached Vibration、fall Ex：/ Suctiontest EX:无 Characteristicimpedance EX: 50 Ω Contactimpedance EX: 0Ω Mediumpressure EX: 500V radiationdirection EX: Verticalandhorizontal version T:A See below table （2）Samplepictures Productdrawings （3）Antennatestenvironmentdiagram （4）S11 (5)Radiationpattern E&H： E1 E2 H 3DdirectionImage： nothing （6）Efficiency&Gain Gain&Efficiency frequency (MHz) gain (dB) efficiency 24002.8560.43% 24202.5861.21% 24402.9963.75% 24502.6262.68% 24703.365.65% 24803.4266.87% 25003.3764.25% 51501.2122.36% 52001.4122.89% 52802.6326.81% 53602.8330.24% 54402.3337.59% 5520-0.0629.73% 5600-0.7125.46% 5680-1.4125.82% 5760-1.6723.87% 5800-1.7222.81% 5850-1.9722.14% (7)Saltspraytestreport： SaltspraytestreportN0.：20200605001 Theproductname Built-inantenna Productionbatches20200605001 productID2H073C-37Numberoftests3PCS Inspectiondate2020.6.5Testdate2020.6.5 TestprojectRequired standards Actual value determina tion TestprojectRequired standards Actual value determinati on Typeofsaltspray test NSSneutralNSSneutr al qualifiedtesttime24H24Hqualified PHvalueofbrine6.5-7.27.1qualifiedSaltspraybox temperature 35°C35°C qualified SpraywayContinuous spray Continuo usspray qualifiedSaltfog settlement 1-2ml1.7qualified Saltwater composition 5%NaCL5%NaCLqualifiedCompressedair pressure 1± 0.1Kg/cm 2 1.0kg/ cm 2 qualified Saturation temperature 47°C47°C qualifiedSpecimen placementAngle 90 o 90 o qualified Testobservation time Resultstherecord 8HNocorrosionmottlingwasobserved 16HNocorrosionmottlingwasobserved 24HNocorrosionmottlingwasobserved determination Determinationaccordingtothenationalstandard5944-86ratingmethodtodetermine,grade9oraboveforqualified Determinethe results □qualified□unqualified TestTianFenReviewSunYueyong note： ThecommonlyusedsaltspraytestmethodsincludeNSSneutralsaltspraytest,AASSsaltspraytest,CASSCupricacetic acidacceleratedtest √ （8）Highandlowtemperaturetestreport： testcontent TestprojectTestconditionsStandardofdeterminationNumberoftestdetermination 1.High temperature test placedat85°C±2°Cfor 4h , normaltemperatureplacedafter 2h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified 2.low temperature test placedat40°C±2°Cfor 4h, normaltemperatureplacedafter 2h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified 3.Temperature cyclingtest Putitinanenvironmentof 85°C±2°Cfor30minutes, takeitoutandputitinroom temperaturefor5minutes;It wasplacedat-40±2°Cfor 30minutes,thenremoved andplacedatroom temperaturefor5minutes. Aftersuch5cycles,thedimensions meetthenormalrequirements, andtheappearanceofno deformation,warping,degumming andotherabnormalphenomena, theperformanceisnormal.。 3PCSqualified 4.Heat resistanceheat Meetthetemperature40°C ±2°C,humidity93±2%RH environmentplacedXXH； normaltemperatureplacedafter 4h,allsizesmeetthenormal requirements,andtheappearance ofnodeformation,warping, degummingandotherabnormal phenomena,theperformanceis normal. 3PCSqualified final conclusion ■qualified□unqualified□ （9）Packing：

Compliance Certification Services (Kunshan) Inc. Page: 1 of 3 Appendix Photographs of Test Setup for KSCR2210001890AT Test Model No.: DH-DB86I-USA Compliance Certification Services (Kunshan) Inc. Page: 2 of 3 Test Setup Photo Conducted Emissions at AC Power Line (150kHz-30MHz) RF …

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