2AJVQ-MWH538BWiFi/BT Module

TheusermanualofTV’sWIFImodule 1.Theproductdescription TheusercanachieveTVconnectionWIFInet,throughthismoduleandthevoltagesuppliedbythesystemtothe moduleneedstobetransmittedbyavoltageregulatororcircuit ThisequipmentmaybeoperatedinallEuropeancountries. Themoduleinstallationmethodisasfollows:passthelargeroundholeofthemodulethroughthelimitcolumnof thebracketoftheTV,andfixthemodulebythesnap-fitonthebracket. 2.Basicparameters FeatureDescriptionFeatureDescription ModelMWH538B ProductName Wi-Fi/BTmoudle MajorChipsetRealtekRTL8822CU AntennaReferenceInternalPrintedPCBANT InterfaceUSB2.0 SupplyVoltage5V±0.5V Dimension 70.0×30.0×3.98mm OperatingTemperature-10°Cto70°C StorageTemperature-40°Cto80°C 3.RFoutputpower BandLimitedpower WlAN2412MHZ-2484MHZ<20 5150MHZ-5850MHZ 4.ThedisplaymethodofModelapprovedcode nthefactory,themodelapprovalcodeisdisplayedonthePCBboardthroughsilkscreenprinting. 5.FCCStatement ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15ofthe FCCrules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidential installation.Thisequipmentgenerates,uses,andcanradiateradiofrequencyenergyandifnotinstalledandusedin accordancewiththeinstructionsmaycauseharmfulinterferencetoradiocommunications.Howeverthereisno guaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferenceto radioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotry tocorrecttheinterferencebyoneormoreofthefollowingmeasures：  Reorientorrelocatethereceivingantenna.  Increasetheseparationbetweentheequipmentandreceiver.  Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.  Consultthedealeroranexperiencedradio/TVtechnicianforhelp. Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterference received,includinginterferencethatmaycauseundesiredoperation. 6.RadiationExposureStatement ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforanuncontrolledenvironmentanditalso complieswithPart15ofFCCRFRules.Thisequipmentshouldbeinstalledandoperatedwithminimumdistanceof20in (50cm)betweentheradiatorandyourbody.Thistransmittermustnotbeco-locatedoroperatedinconjunctionwithany otherantennaortransmitter CAUTION: TocomplywiththelimitsoftheClassBdigitaldevicepursuanttoPart15oftheFCCRules,thisdeviceiscompliantwith ClassBlimits.Allperipheralsmustbeshieldedandgrounded.Operationwithnon-certifiedperipheralsornon-shielded cablesmayresultsininterferencetoradioorreception MODIFICATION Toassurecontinuedcompliance,Anychangesormodificationsnotexpresslyapprovedbythegranteeofthisdevice couldvoidtheusersauthoritytooperatethedevice. 7.RadiationExposureStatement ThisequipmentcomplieswithICradiationexposurelimitssetforthforanuncontrolledenvironment.Thisequipment shouldbeinstalledandoperatedwithminimumdistanceof50cm(8in)betweentheradiatorandyourbodyNOTETo satisfyFCCexteriorlabelingrequirements,thefollowingtextmustbeplacedontheexterioroftheendproductContains TransmittermoduleFCCID:2AJVQMWH538BTosatisfyIESDexteriorlabelingrequirements,thefollowingtextmustbe placedontheexterioroftheendproduct"ContainsTransmittermoduleIC:******* Thissymbolontheproductoronitspackagingindicatesthatthisproductmustnotbedisposedofwithyourhousehold waste.Instead,itisyourresponsibilitytodisposeofyourwasteequipmentbyhandingitovertoadesignated collectionpointfortherecyclingofwasteelectricalandelectronicequipment.Theseparatecollectionandrecyclingof yourwasteequipmentatthetimeofdisposalwillhelptoconservenaturalresourcesandensurethatitisrecycledina mannerthatprotectshumanhealthandtheenvironment.Formoreinformationaboutwhereyoucandropoffyour wasteequipmentforrecycling,pleasecontactyourlocalcityoffice,yourhouseholdwastedisposalserviceortheshop whereyoupurchasedtheproduct. Thedeviceisrestrictedtoindooruseonlywhenoperatinginthe5150to5350MHzfrequencyrange. 8.ICStatement i、thedeviceforoperationintheband5150–5250MHzisonlyforindoorusetoreducethepotentialforharmful interferencetoco-channelmobilesatellitesystems;Footnote4 ii、fordeviceswithdetachableantenna(s),themaximumantennagainpermittedfordevicesinthebands5250-5350 MHzand5470-5725MHzshallbesuchthattheequipmentstillcomplieswiththee.i.r.p.limit; iii、fordeviceswithdetachableantenna(s),themaximumantennagainpermittedfordevicesintheband5725-5850 MHzshallbesuchthattheequipmentstillcomplieswiththee.i.r.p.limitsasappropriate;and iv、whereapplicable,antennatype(s),antennamodels(s),andworst-casetiltangle(s)necessarytoremaincompliantwith thee.i.r.p.elevationmaskrequirementsetforthinsection6.2.2.3shallbeclearlyindicated. ThisdevicecomplieswithIndustryCanada’slicence-exemptRSSs.Operationissubjecttothefollowingtwo conditions: "Operationissubjecttothefollowingtwoconditions:(1)thisdevicemaynotcauseinterference,and(2)thisdevice mustacceptanyinterference,includinginterferencethatmaycauseundesiredoperationofthedevice." LeprésentappareilestconformeauxCNRd’IndustrieCanadaapplicablesauxappareilsradioexemptsdelicence.L’ exploitationestautoriséeauxdeuxconditionssuivantes: 1)l’appareilnedoitpasproduiredebrouillage; 2)l’appareildoitacceptertoutbrouillageradioélectriquesubi,mêmesilebrouillageestsusceptibled’en compromettrelefonctionnement. Manufacturer:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Address:No.218QianwangangRoad,QingdaoEconomic&TechnologicalDevelopment Zone,QingdaoCity,ShandongProvince,P.R.China Importers: HisenseFranceSAS Address:9Ruedes3Soeurs,93420Villepinte,France HisenseIberia,S.L.U Address:RondaAugusteyLouisLumiere.23Nave12.EdificioLumiere-Parque Tecnológico46980 Paterna(Valencia)-Spain HisenseItaliaS.r.l Address:ViaMontefeltro,6/A,20156MILANO HisenseSouthAfrica Address:TheEstuaries,Building17OxbowCrescent,CenturyCity,CapeTown,SouthAfrica Warning： Withoutapproval,companies,businesses,orusersarenotallowedtochangethefrequency, increasepower,orc…

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Qingdao Intelligent & Precise Electronics Co., Ltd. To: Federal Communications Commission Date: 2023/11/13 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Section 2.911(d)(5)(i) and Section 2.911(d)(5)(ii) (KDB 986446 D01 Covered Equipment) Section 2.911(d)(5)(i) Qingdao Intelligent & Precise Electronics Co., Ltd.(“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Section 2.911(d)(5)(ii) Qingdao Intelligent & Precise Electronics Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Type of Equipment subject to FCC Certification: FCC ID: 2AJVQ-MWH538B If you have any questions, please feel free to contact me Contact Person: Wang Haining Position in the Company: Certification Manager Date of Signature: 2023/11/13 ___________________________ Signatory (signature of the applicant)

V02072023 Manufacturers Letterhead Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023.11.13 Ref: Attestation Statement Part 2.911(d)(7) Filing FCC ID:2AJVQ-MWH538B Qingdao Intelligent & Precise Electronics Co., Ltd. certifies that, as of the dates of this application, Americas Compliance Consulting LLC dba iCertifi “iCertifi” is our designated U.S. agent for service of process for the above referenced FCC ID. Qingdao Intelligent & Precise Electronics Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission-related proceeding involving the equipment. iCertifi accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Americas Compliance consulting, LLC dba iCertifi FCC FRN: 0033399411 Address: 1001 SW Disk Drive, Suite 250, Bend, Oregon 97702 Contact Person: Paul A Preston Tel: 866-885-4575 Email: [email protected] Sincerely, Qingdao Intelligent & Precise Electronics Co., Ltd. FCC FRN: 0025785783 Americas Compliance Consulting LLC dba iCertifi Wang Haining Paul A Preston Signature

Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China Authorization Letter FCC ID: 2AJVQ-MWH538B Date: 11/14/23 To whom it may concern: We, the undersigned, hereby authorize The State Radio_monitoring_center Testing Center (SRTC) to act on our behalf, as our agent, in the following matters related to the RED Directive approval of our product: Product Name: WiFi/BT Module Product Model: MWH538B FCC ID: 2AJVQ-MWH538B Report submittal, related correspondence, the signing of all documents relating to these matters, and any other lawful activity necessary to obtain such certification. Any act carried out by The State Radio_monitoring_center Testing Center (SRTC) within the scope of this authorization shall have the same effects as our own. This authorization shall expire 2 months from original date. If you have any question regarding the authorization, please don’t hesitate to contact with me. Thank you. Sincerely, Wang Haining Certification Engineer Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China

Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China Subject: PART 15 UNLICENSED MODULAR TRANSMITTER APPROVAL To Whom it may concern, We, Qingdao Intelligent & Precise Electronics Co., Ltd., hereby requests for part 15 unlicensed modular transmitter approval of our device, described as follows: Product Name: WiFi/BT Module Product Model: MWH538B FCC ID: 2AJVQ-MWH538B In FCC Public Notice DA 00-1407 released June 26,2000 there are eight numbered requirements that our device complies with: 1. The modular transmitter must have its own shielding. Yes,it has a metal shielding. 2. The modular transmitter must have buffered modulation/data inputs Yes,it has a buffer for modulation and data input.The highly integrate single-chip is RTL8822CU 3. The modular transmitter must have its own power supply regulation Yes,it has a power supply regulation for transmitter inside the chip. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204c Yes, WiFi antenna are pcb antenna on the module board by pcbtrace. 5. The modular transmitter must be tested in a stand-alone configuration Yes,it has been tested in a stand-alone configuration ,not inside another device . 6. The modular transmitter must be labelled with its own FCC ID number Yes, FCC ID: 2AJVQ-MWH538B 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. Yes, our module has complied the FCC spec and operating requirements . The manufacturer has corresponding module installation instructions. 8. The modular transmitter must comply with any applicable RF exposure requirements. Yes,our module has detailed application notes for users,installers and other interested parties to ensure that it comply with any applicable RF exposure requirements . Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China Yours sincerely， Signatory Name: Wang Haining Job Title: Certification Manager

UNII Declaration Letter We have declared below featured for FCC equipment authorization, device FCC ID: 2AJVQ-MWH538B (1) DFS Device -- Master, Client with Radar detection capability , Client without radar detection capability, N/A (2) Active / Passive Scanning , adhoc mode access point capability Frequency Band (MHz) Active Scanning (the device can transmit a probe (beacon)) passive scanning (where the device is can listen only with no probes) Ad Hoc Mode capability Access point capability 2412 – 2462 MHz Yes, No Yes, No Yes, No Yes, No 2422 – 2452 MHz Yes, No Yes, No Yes, No Yes, No 5745 – 5825 MHz Yes, No Yes, No Yes, No Yes, No 5755 – 5795 MHz Yes, No Yes, No Yes, No Yes, No 5180 – 5240 MHz Yes, No Yes, No Yes, No Yes, No 5190 – 5230 MHz Yes, No Yes, No Yes, No Yes, No 5260 – 5320 MHz Yes, No Yes, No Yes, No Yes, No 5270 – 5310 MHz Yes, No Yes, No Yes, No Yes, No 5500 – 5700 MHz Yes, No Yes, No Yes, No Yes, No 5510 – 5670 MHz Yes, No Yes, No Yes, No Yes, No (3) Country code selection ability - Yes , No If no, pls explain how was implemented : use Microsoft network utility (4) Meet 15.202 requirement - Yes , No , pls check below : A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network. (5) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non-DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes can not be modified by end user or an installer. Apply , No Apply , (If apply , pls help to provide explanation on how it was implement (By hardware or software , and how software was controlled) Applicant: Qingdao Intelligent & Precise Electronics Co., Ltd. Address: 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China Signature: Name: Wang Haining Job Title: Certification Engineer Date: 2023.11.14

Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China Request of Confidentiality Federal Communications Commission Authorization and Evaluation Division Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying of following product: Product Name: WiFi/BT Module Product Model：MWH538B FCC ID: 2AJVQ-MWH538B The following information should be held confidential: All Schematics/block diagrams/BOM All Parts list for the above schematic diagram Operational description and technical overview of product The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Name: Wang Haining Job title: Certification Engineer Qingdao Intelligent & Precise Electronics Co., Ltd. 218 Qianwangang Road, Qingdao Economic& Technological Development Zone, Qingdao, China

ExternalPhoto FCCID：2AJVQ-MWH538B 1/1

CMIIT ID:XXXXXXXXXXX 0000-000000-00000000- XXX00000XX0-YYMDD00001 MWH538B FCC ID:2AJVQ-MWH538B Made in China Qingdao Intelligent&Precise Electronics Co.,Ltd 7.25 5.2 5.2

InternalPhoto FCCID：2AJVQ-MWH538B 1/2 InternalPhoto FCCID：2AJVQ-MWH538B 2/2

Certificate#5505.02 MPEREPORT ReportNo.:SRTC2023-9004(F)-23101701(I) ProductName: WiFi/BTModule ModelName: MWH538B Applicant:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Manufacturer:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. FCCID:2AJVQ-MWH538B ReferenceSpecification FCCPart§1.1310 TheStateRadio_monitoring_centerTestingCenter(SRTC) 15thBuilding,No.30ShixingStreet,ShijingshanDistrict,Beijing,P.R.China Tel:86-10-57996183Fax:86-10-57996388 No.:SRTC2023-9004(F)-23101701(I) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber:2of9 Tel:86-10-57996183Fax:86-10-57996388V3.0.0 TABLEOFCONTENTS 1GENERALINFORMATION...............................................................................................................................................3 1.1Notesofthetestreport....................................................................................................................................................3 1.2Informationaboutthetestinglaboratory.......................................................................................................................3 1.3Applicant’sdetails ............................................................................................................................................................3 1.4Manufacturer’sdetails .....................................................................................................................................................3 1.5Testenvironment..............................................................................................................................................................4 2DESCRIPTIONOFTHEEQUIPMENTUNDERTEST ...................................................................................................5 2.1Finalequipmentbuildstatus ...........................................................................................................................................5 3SPECIFICATION................................................................................................................................................................7 4RESULTSUMMARY.........................................................................................................................................................7 5CALCULATIONRESULT .................................................................................................................................................8 5.1Maximumpermissibleexposure(MPE) ...............................................................................................................................8 No.:SRTC2023-9004(F)-23101701(I) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber:3of9 Tel:86-10-57996183Fax:86-10-57996388V3.0.0 1GENERALINFORMATION 1.1Notesofthetestreport Thetestreportmayonlybereproducedorpublishedinfull.Reproductionorpublicationofextracts fromthereportrequiresthepriorwrittenpermissionofTheStateRadio_monitoring_centerTesting Center(SRTC). Thecertificationandaccreditationidentifiersusedinthisreportshallnotbeapplicabletothe testedorcalibratedsamplesthereof.Themanufacturershallnotmarkthetestedsamplesoritems (oraseparatepartoftheitem)withtheidentifiersofcertificationandaccreditationtomislead relevantpartiesaboutthetestedsamplesoritems. 1.2Informationaboutthetestinglaboratory Company:TheStateRadio_monitoring_centerTestingCenter(SRTC) Designationnumber:CN1267 Registrationnumber:239125 CertificateNumber: 5055.02 Address: 15thBuilding,No.30ShixingStreet,ShijingshanDistrict,Beijing P.R.China Contactedperson:LiuJia Tel:+861057996183 Fax:+861057996388 Email:[email protected] 1.3Applicant’sdetails Company:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Address: 218QianwangangRoad,QingdaoEconomic&Technological DevelopmentZone,Qingdao,China 1.4Manufacturer’sdetails Company:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Address: 218QianwangangRoad,QingdaoEconomic&Technological DevelopmentZone,Qingdao,China No.:SRTC2023-9004(F)-23101701(I) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber:4of9 Tel:86-10-57996183Fax:86-10-57996388V3.0.0 1.5Testenvironment DateofReceiptoftestsampleatSRTC:2023-10-31 TestingStartDate:2023-11-01 TestingEndDate: 2023-11-08 EnvironmentalData:Temperature(°C)Humidity(%) Ambient2540 MaximumExtreme70--- MinimumExtreme-10--- No.:SRTC2023-9004(F)-23101701(I) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber:5of9 Tel:86-10-57996183Fax:86-10-57996388V3.0.0 2DESCRIPTIONOFTHEEQUIPMENTUNDERTEST 2.1Finalequipmentbuildstatus FrequencyRange2.402GHz~2.480GHz NumberofChannel79 ModulationTypeGFSK,π/4DQPSK,8DPSK DuplexModeTDD ChannelSpacing1MHz DataRate1Mbps,2Mbps,3Mbps AntennaTypeIFAAntenna AntennaGain0.82dBi PowerSupplyDCsupply SoftwareRevision: NA HardwareRevision: V1.00 IMEI/SN:#1 FrequencyRange:2.402GHz~2.480GHz NumberofChannel:40 ModulationType:GFSK DuplexMode:TDD ChannelSpacing:2MHz DataRate:LE1Mbps/2Mbps AntennaTypeIFAAntenna AntennaGain0.82dBi PowerSupply:DCsupply SoftwareRevision:NA HardwareRevision:V1.00 IMEI:#1 FrequencyRange:2.412GHz~2.472GHz NumberofChannelFor20MHz:13 DuplexMode:TDD No.:SRTC2023-9004(F)-23101701(I) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber:6of9 Tel:86-10-57996183Fax:86-10-57996388V3.0.0 ChannelSpacing:5MHz Mode:802.11b/802.11g/802.11n(HT20/HT40) AntennaType:IFAAntenna AntennaGain: ANT0:1.44dBi ANT1:-0.45dBi PowerSupply:DCsupply SoftwareRevision:NA HardwareRevision:V1.00 OperatingBand(s): 5.15GHz~5.35GHz 5.47GHz~5.725GHz Channel/For20MHz: 36/40/44/48/52/56/60/64/100/104/108/112/116/ 120/124/128/132/136/140 Channel/For40MHz:38/46/54/62/102/110/118/126/134 Channel/For80MHz:42/56/106/122 TheDFSrelatedoperatingmode(s) oftheequipment: □Master □Slavewithradardetection  Slavewithoutradardetection ModulationType: 802.11a/n(HT20/HT40) 802.11ac(VHT20/VHT40/VHT80) DuplexMode:TDD AntennaType:IFAAntenna AntennaGain: ANT0:2.98dBi ANT1:2.35dBi …

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MWH538B Antenna Test Report 2023.09.26 1 ANT Property WiFi0 WiFi1 BT WiFi0 Antenna TypeIFA Antenna Inputimpedance50Ω FrequencyBand2.4~2.5GHz/5.15~5.85GHz ReturnLoss2.4GHz~2.5GHz：S11≤-10dB 5.15GHz~5.85GHz：S11≤-5dB. [email protected]~2.5GHz, [email protected]~5.85GHz Efficiency2.4~2.5GHz≥50%(Avg) , 5.15~5.85GHz≥50%(Avg) WiFi1 Antenna TypeIFA Antenna Inputimpedance50Ω FrequencyBand2.4~2.5GHz/5.15~5.85GHz ReturnLoss2.4GHz~2.5GHz：S11≤-10dB 5.15GHz~5.85GHz：S11≤-5dB. [email protected]~2.5GHz , [email protected]~5.85GHz Efficiency2.4~2.5GHz≥45%(Avg) , 5.15~5.85GHz≥45%(Avg) BT Antenna TypeSlot Antenna Inputimpedance50Ω FrequencyBand2.4~2.5GHz ReturnLossS11≤-3dB PeakGain0.82dBi Efficiency≥25%(Avg) Qingdao Intelligent & Precise Electronics Co., Ltd. 2 ANT Efficiency WiFi0CHGain/dBiEfficiency/% 2.4G L 1.4453 M-0.7138 H0.9660 5G L1.9650 M2.9861 H1.3843 WiFi1CHGain/dBiEfficiency/% 2.4G L -0.4537 M-0.8240 H-0.9950 5G L2.3550 M0.4736 H1.7646 BTCHGain/dBiEfficiency/% 2.4G L 0.8238 M-1.4424 H-3.1116 Qingdao Intelligent & Precise Electronics Co., Ltd. 3 WiFi0 2.4G：L Band M Band H Band Phi Section Theta Section ANT Directivity Pattern Qingdao Intelligent & Precise Electronics Co., Ltd. 4 WiFi0 5G：L Band M Band H Band Phi Section Theta Section ANT Directivity Pattern Qingdao Intelligent & Precise Electronics Co., Ltd. 5 WiFi1 2.4G：L Band M Band H Band Phi Section Theta Section ANT Directivity Pattern Qingdao Intelligent & Precise Electronics Co., Ltd. 6 WiFi1 5G：L Band M Band H Band Phi Section Theta Section ANT Directivity Pattern Qingdao Intelligent & Precise Electronics Co., Ltd. 7 BT 2.4G：L Band M Band H Band Phi Section Theta Section ANT Directivity Pattern Qingdao Intelligent & Precise Electronics Co., Ltd. 8 ANT Return Loss WiFi0 Antenna 2.4-2.5GHz < -10dB 5.15-5.85GHz < -5dB Qingdao Intelligent & Precise Electronics Co., Ltd. 9 ANT Return Loss WiFi1 Antenna 2.4-2.5GHz < -10dB 5.15-5.85GHz < -5dB Qingdao Intelligent & Precise Electronics Co., Ltd. 10 ANT Return Loss BT Antenna 2.4-2.5GHz<-3dB Qingdao Intelligent & Precise Electronics Co., Ltd. 11 ANT Isolation Isolation between WiFi0 and WiFi1 2.4G：L:-7dB M:-8dB H:-7dB 5G：L:-20dB M:-22dB H:-24dB Qingdao Intelligent & Precise Electronics Co., Ltd. 12 ANT Isolation Isolation between WiFi0 and BT 2.4G：L:-20dB M:-34dB H:-24dB Qingdao Intelligent & Precise Electronics Co., Ltd. 13 ANT Isolation Isolation between WiFi1 and BT 2.4G：L:-20dB M:-30dB H:-27dB Qingdao Intelligent & Precise Electronics Co., Ltd. 14 Qingdao Intelligent & Precise Electronics Co., Ltd. ANT Manufacturer THANKS

Antenna combination of module Detail Is it supported 1 WIFI0 ceramic antenna Yes Select WiFi 0 channel transmits signals, uses WIF0 ceramic antenna 2 WIFI1 ceramic antenna Yes Select WiFi 1 channel transmits signals, uses WIFI1 ceramic antenna 3 WIFI0 & WIFI1 ceramic antennas Yes Chip MIMO transmission, WiFi 0 and WiFi 1transmit signals at the same time, WIFI0 & WIFI1 ceramic antennas are used at the same time. 4 BT ceramic antenna Yes Select BT channel transmits signals, uses BT ceramic antenna BT WiFi1 WiFi1 WiFi0 WiFi0

Certificate#5505.02 TESTREPORTFORWLAN TESTING ReportNo.:SRTC2023-9004(F)-23101701(G) ProductName:WiFi/BTModule ProductModel:MWH538B Applicant:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Manufacturer:QingdaoIntelligent&PreciseElectronicsCo.,Ltd. Specification:FCCPart15SubpartE(2022) ANSIC63.10(2013) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC) 15thBuilding,No.30ShixingStreet,ShijingshanDistrict,Beijing,P.R.China Tel:86-10-57996183Fax:86-10-5799638 No.:SRTC2023-9004(F)-23101701(G) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber: 1 of 26 Tel:86-10-57996183 Fax:86-10-57996388V3.0.0 CONTENTS 1.GENERALINFORMATION..................................................................................................................................2 1.1Notesofthetestreport................................................................................................................................2 1.2Informationaboutthetestinglaboratory...................................................................................................2 1.3Applicant’sdetails .........................................................................................................................................2 1.4Manufacturer’sdetails..................................................................................................................................2 1.5TestEnvironment..........................................................................................................................................3 2.DESCRIPTIONOFTHEDEVICEUNDERTEST.............................................................................................3 2.1FinalEquipmentBuildStatus .......................................................................................................................3 2.2WirelessTechnologyandFrequencyRange .............................................................................................3 2.3SupportEquipment .......................................................................................................................................5 2.4Note.................................................................................................................................................................5 3REFERENCESPECIFICATION............................................................................................................................6 4KEYTONOTESANDRESULTCODES............................................................................................................6 5.RESULTSUMMARY ..............................................................................................................................................7 6TESTRESULT .........................................................................................................................................................9 6.126dBBandwidth............................................................................................................................................9 6.26dBBandwidth(Onlyfor5.725–5.850GHzband)...............................................................................10 6.3MaximumConductedOutputPower.........................................................................................................11 6.4MaximumPowerSpectralDensity ............................................................................................................12 6.5UnwantedRadiatedEmissionMeasurement..........................................................................................13 6.6ACPowerlineConductedEmission ........................................................................................................17 6.7DynamicFrequencySelection..................................................................................................................17 7MEASUREMENTUNCERTAINTIES.................................................................................................................24 8TESTEQUIPMENTS.............................................................................................................................................25 APPENDIXA–TESTDATAOFCONDUCTEDEMISSION .............................................................................26 APPENDIXB–TESTDATAOFRADIATEDEMISSION ..................................................................................26 No.:SRTC2023-9004(F)-23101701(G) FCCID:2AJVQ-MWH538B TheStateRadio_monitoring_centerTestingCenter(SRTC)Pagenumber: 2 of 26 Tel:86-10-57996183 Fax:86-10-57996388V3.0.0 1.GENERALINFORMATION 1.1Notesofthetestreport Thetestreportmayonlybereproducedorpublishedinfull.Reproductionorpublicationofextracts fromthereportrequiresthepriorwrittenpermissionofTheStateRadio_monitoring_centerTesting Center(SRTC).Thetestresultsrelateonlytoindividualitemsofthesampleswhichhavebeentested. Thecertificationandaccreditationidentifiersusedinthisreportshallnotbeapplicabletothetested orcalibra…

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