2ASC7DS600BTCar Diagnostic Tool

OBDSPACETECHNOLOGYCO,.LTD U.S.AgentDesignationforServiceofProcess (ApplicantandU.S.AgentareSeparateParties) TO:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ATTENTION:FCCCertification–Section2.911(d)(7)Information DesignatedU.S.Agent CompanyName:BaihetianInnovativeSolutions FRN:0033401605 ContactName:KennethYoung StreetAddress:6837ChaseRd City/Province/Zip:Dearborn,MI48126 TelephoneNo:313-395-3113 Email:[email protected] Thisletteristoconfirmthatwe(BaihetianInnovativeSolutions)haveacceptedtheresponsibilitytoactas theDesignatedU.S.AgentforServiceofProcessasrequiredbysection47CFR2.911(d)(7)onbehalfofthe Applicantnotedbelow. U.S.AgentSignature: Date:Nov.30,2025 Signedby(PrintedName/Title):KennethYoung/Manager TheApplicantacknowledgesthattheymustmaintainanagentfornolessthanoneyearafterterminatingall marketingandimportationORtheconclusionofanyCommission-relatedproceedinginvolvingthe equipment.TheapplicantfurtheracknowledgestheirresponsibilitytoinformtheFCCwheneverthe DesignatedU.S.Agentinformationabovechanges. Applicant Companyname:OBDSPACETECHNOLOGYCO,.LTD GranteeCode:2ASC7 FCCID:2ASC7DS600BT FRN:0028167070 ContactName:FrankHao StreetAddress:RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict,ShenzhenCity,China TelephoneNo:+86-13691649917 Email:[email protected] ApplicantSignature: Date:2025.11.30 Signedby(PrintedName/Title):FrankHao/Manager

Rev1/26/2023 OBDSPACETECHNOLOGYCO,.LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2025-12-12 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2ASC7DS600BT OBDSPACETECHNOLOGYCO,.LTDcertifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903of theFCCrules. OBDSPACETECHNOLOGYCO,.LTDcertifiesthattheequipmentforwhichauthorizationissoughtdoes notincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofits successorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature) (FrankHao) Rev1/26/2023 OBDSPACETECHNOLOGYCO,.LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2025-12-12 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2ASC7DS600BT OBDSPACETECHNOLOGYCO,.LTDcertifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (FrankHao)

OBDSPACETECHNOLOGYCO,.LTD RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict,Shenzhen City,China OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:December12,2025 Subject;RequestforConfidentiality FCCID:2ASC7DS600BT ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:FrankHao Title:Manager

EffectiveDate:April2,2020QSF7.6.4-8–AgentAuthorizationLetterTemplatePage1of1 RevisionDate:Revision:0 OBDSPACETECHNOLOGYCO,.LTD RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict,ShenzhenCity,China Date：2025/11/30 ProductModelNumber:DS600BT FCCID：2ASC7DS600BT Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C.CanadaV5J5K5to actonourbehalfonallmattersconcerningtheabovenamedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformationrelatedtothe approvalprojecttotheappliedcertificationbodyandtothenotificationentitiesandtodiscuss anyissuesconcerningtheapprovalapplication.AnyandallactscarriedoutbyQAI LaboratoriesLtd.onourbehalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:+86-13691649917 Onbehalfof:OBDSPACETECHNOLOGYCO,.LTD

OBDSPACETECHNOLOGYCO,.LTD RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict,ShenzhenCity,China SeriesModelsDescription FCCID:2ASC7DS600BT Towhomitmayconcern: Thedevice(ProductName:CarDiagnosticTool)ModelsName:DS600BT, DS610BT,DS620BT,DS630BT,DS640BT,DS650BT,DS660BT,DS670BT, DS680BT,DS690BThavesameelectrical,PCBandBOM,onlythemodel’ snameandcolouraredifferentformarketingrequirements. Sincerely, FrankHao Phone:+86-13691649917 e-mail:[email protected] Dated:2025.11.30

OBDSPACETECHNOLOGYCO,.LTD RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict,Shenzhen City,China FCCSoftwareConfigurationControlDeclaration Date:December12,2025 FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Attn:OETDept. FCCID:2ASC7DS600BT Product/ModelNumber:CarDiagnosticTool/DS600BT RegardingFCCCountryCodeSelectionguidelinesidentifiedinKDB594280. “Allapplicationsforequipmentauthorizationfortransmittersthatcanhave radioparameters,orothertechnicalparameters,reportedtotheCommission setbysoftwaremusthaveanattestationindicatingthatnothirdpartywillhave software,orconfigurationcontrol,toprogramthedeviceoutofcomplianceof thetechnicalrulesunderwhichithasbeencertified.” Wedeclarethatnothirdpartywillhavesoftware,orconfigurationcontrol,toprogram thedeviceoutofcomplianceofthetechnicalrulesunderwhichithasbeencertified. Name:FrankHaoDate:December12,2025 Title:Manager Signatureofapplicant ：

深圳市同讯精密技术有限公司 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhe ShenzhenTongxunPrecisionTechnologyCo.,Ltd n 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 规格承认书 Specificationsheet 客戶 Customername 客户料号 1.02.23.014 星卡科技 Thinkcar TechnologyCo., Ltd 0 CustomerP/N 品名 ArticleDescription 同讯料號 KC.IA.0052 ThinkScan 919 天线 (WIFI/BT 二合一天线 ),RoHS ThinkScan919 Antenna (WIFI/BT Dual Function Antenna), RoHS Compliant 0 TOXUPartNo. 承认书号码 A20240606-002 ApprovalsheetNo. 日期 2024.06.06 Date 承认填写栏Signatureconfirmation 供应商确认（供方填写栏） Suppliersignature 客户承认（需方填写栏） Customersignature 李德文 盖章seal：盖章seal： 日期date2024.06.06日期date 备注Remarks： 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 目录 catalogue 1. 封面（ CoverPage ） ------------------------------------------------------------page(1to1) 2. 目录 (Content)--------------------------------------------------------------------page(2to2) 3. 变更履历 (ChangeHistorySheet)--------------------------------------------page(3to3) 4. 产品相片 (Productphotos)----------------------------------------------------page(3to3) 5. 机械及电气性能 (MechanicsandElectricalSpecification)-----------page(4to4) 6. 性能报告 (Performancereport)---------------------------------------------page(5to6) 7. 成品图面 (CustomerDrawing)---------------------------------------------page(7to7) 8. 包装规格 (PackingSpec)-------------------------------------------------page(8to8) 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 版本（REV）发起人（Originator）日期（Date）变更描述(ChangeDescription 3.承认书变更履历( Acknowledge the change of resume ) ) A/1LIFirstVersio2024.006.06n 4. 产品相片 (Productphotos): 深圳市同讯精密技术有限公司 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhe ShenzhenTongxunPrecisionTechnologyCo.,Ltd n 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 5. 机械及电气性能 (MechanicsandElectricalSpecification) 产品名称(Name)产品型号(ModelTypeFPC 天线(FPC antenna)) 电性能指标(ElectricalSpecifications WiFi/BT天线 (WiFi/BT Antenna) ) 频率范围(FrenquencyRange)2400-2500MHZ/5200-5800MHZ极化方式（Polarization）线极化linear 输入阻抗(Impedance)50Ω辐射方向（Radiation direction） 全向 omnidirectional 驻波比（VSWR）≦2.0功率容量(Power)10W 增益(Gain)5dBi（MAX）带宽(Bandwidth）100/600MHZ 机械指标(MechanicalSpecifications) 尺寸(Dimensions)49*18.85*0.45颜色(colour)黑色black 连接器型号(Connector)IPEX-I引线长度(CableLength)55MM 材料RadomeMaterialFPC盐雾（Saltspraytest）48H 工作温度 (WorkingTemperature) -40°C-+85°C存放温度 (LimitTemperature) -40°C-+85°C 天线类型（Antennatype）IFA 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 6 性能报告 (Performancereport) 6.1 测试项目及设备 TestItemsandEquipment 测试项目 TestItems 测试设备 TestEquipment SParameter1.Returnloss 2.VSWR Networkanalyzar (AglientE5071C) Thewholemachineof Passiveparameters 1.Freqency 2.Gain 3.Radiation Pattem 1.3Dmicrowarvedarkroom (4M*3M*3M) 2.Networkanalyzer Thewholemachineof Activeparameters 1.TRP 2.TIS 1.3Dmicrowavedarkroom (4M*3M*3M) 3.Comprehensivetestinstrument 4.(CMW500)(E7515E) InstrumentcalibrationOnceayear ， Lastcalibration ： 2023.11.22 ， Validuntil:2024.11.22 a 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 6.2 性能报告 (Performancereport) 6.2.1 电压驻波比（ VSWR ）： 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 6.2.2 效率 @ 增益（ EfficiencyandGain ）： Frequency/MhzMaxGain/dBiEfficiency/%Frequency/MhzMaxGain/dBiEfficiency/% 2400 4.5863.24 5330 3.6251.76 2410 4.765.31 5360 3.953.46 2420 4.6363.68 5390 3.5750.58 2430 4.8164.27 5420 3.7852.72 2440 4.6762.95 5450 3.5954.33 2450 4.360.67 5480 3.3951.17 2460 4.4662.66 5510 3.7357.15 2470 4.7163.24 5540 3.6457.41 2480 4.7163.53 5570 3.2553.33 2490 566.07 5600 2.7850.93 2500 4.666.83 5630 3.0753.83 5660 2.9650.82 5150 3.0450.93 5690 2.6648.98 5180 3.3352.24 5720 352 5210 3.4350.93 5750 3.5151.76 5240 3.2450.12 5780 3.1749.43 5270 2.9547.53 5810 3.1747.1 5300 3.450.23 5840 3.848.87 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 6.2.33D@2D 辐射方向（ 3D&2DRadiationPattern ）： 测试人（ Testedby ） DEWEN-LI 电话（ Contactphonenumber ） 0755-28199597 日期（date）2024.05.12 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com 7. 成品图（ CustomerDrawing ） (Technical requirement): (Electrical parameters): (Impedance):50 Ω (Frequency band):2400-2500/5150-5850MHz Gain: 5dBi (MX) (Environment): (Storage temperature): -20 T0 +60 °C (Working temperature): -20 T0 +60 °C (The marked in the figure is the key control size) (Environmental compliance: Conforms to Tongxun TXDG3-QA-001 " General Control Standard for Restricted Substances") 深圳市同讯精密技术有限公司 ShenzhenTongxunPrecisionTechnologyCo.,Ltd 地址：深圳市龙华区福城街道茜坑社区茜坑路52号 ADDRESS:5thfloor,No.52,XikengRoad,Xikengcommunity,Fuchengstreet,LonghuaDistrict,Shenzhen 电话（TEL）：0755-28199597网址（WEB）：www.toxutech.com Productnumber：xxxx 8. 包装方式（ Packaging ）： x Productmodel：xxxxx 一、Labelrequirements： Customerxxx supplierxxxxx Materialcodingxx Productmodelxx NumberXXXPCSFactorydateXXX Remarks 二、Boxing： Jobdescription： 1.Innerpackaging： XXpcsAbag 2.Externa…

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FCCID:2ASC7DS600BTPage1of4ReportNo.:CTL2507222076-WF ExternalPhotosofEUT FCCID:2ASC7DS600BTPage2of4ReportNo.:CTL2507222076-WF FCCID:2ASC7DS600BTPage3of4ReportNo.:CTL2507222076-WF FCCID:2ASC7DS600BTPage4of4ReportNo.:CTL2507222076-WF

FCCID:2ASC7DS600BTPage1of1ReportNo.:CTL2507222076-WF FCCIDLabelInformation Labellocation: Size:2cm*3cm CarDiagnosticTool Model:DS600BT FCCID:2ASC7DS600BT IC:27610-DS600BT Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothe followingtwoconditions:(1)Thisdevicemaynotcauseharmfulinterference, and(2)thisdevicemustacceptanyinterferencereceived,includinginterference thatmaycauseundesiredoperation.

FCCID:2ASC7DS600BTPage1of5ReportNo.:CTL2507222076-WF InternalPhotosofEUT Bluetooth& 2.4GWi-Fi& 5GWi-FiAntenna FCCID:2ASC7DS600BTPage2of5ReportNo.:CTL2507222076-WF FCCID:2ASC7DS600BTPage3of5ReportNo.:CTL2507222076-WF FCCID:2ASC7DS600BTPage4of5ReportNo.:CTL2507222076-WF

FCCID:2ASC7DS600BTPage5of5ReportNo.:CTL2507222076-WF

FCCID:2ASC7DS600BTPage1of3ReportNo.:CTL2507222076-WFH RFExposureLetter AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1 StandaloneSARtestexclusionconsiderations: “ Unlessspecificallyrequiredbythe publishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-g extremitySARevaluationforgeneralpopulationexposureconditions,by measurementornumericalsimulation,isnotrequiredwhenthecorrespondingSAR TestExclusionThresholdcondition,listedbelow,issatisfied.Thesetestexclusion conditionsarebasedonsource-basedtime-averagedmaximumconductedoutput poweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance,andthe minimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromthe antennaandradiatingstructuresoroutersurfaceofthedevice,accordingtothehost formfactor,exposureconditionsandplatformrequirements,toanypartofthebodyor extremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustified bytheoperatingconfigurationsandexposureconditionsofthetransmitterand applicablehostplatformrequirements,typicallyintheSARmeasurementorSAR analysisreport,accordingtotherequiredpublishedRFexposureKDBprocedures. WhennootherRFexposuretestingorreportingisrequired,astatementof justificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevice specificconditionsdescribedintheotherpublishedRFexposureKDBprocedures mustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample, handheldPTTtwo-wayradios,handsets,laptops&LAPTOPsetc. “ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremity SAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz • PoweranddistanceareroundedtothenearestmWandmmbeforecalculation • Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whenthe minimumtestseparationdistanceis<5mm,adistanceof5mmaccordingto5)in section4.1isappliedtodetermineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinations ofsimultaneoustransmissionconfigurations,furtherequipmentapprovalisnot requiredtoincorporatetransmittermodulesinhostdevicesthatoperateinthemixed mobileandportablehostplatformexposureconditions.Thegranteeisresponsiblefor documentingthisaccordingtoClassIpermissivechangerequirements.Antennasthat qualifyforstandaloneSARtestexclusionmustapplytheestimatedstandaloneSAR todeterminesimultaneoustransmissiontestexclusion. FCCID:2ASC7DS600BTPage2of3ReportNo.:CTL2507222076-WFH a)The[ ∑ of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[ ∑ ofMPE ratios]is ≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmitting antennapairsoperatinginportabledeviceexposureconditionsareall ≤ 0.04,and the[ ∑ ofMPEratios]is ≤ 1.0. AccordingtoKDB616217D04SARforlaptopandLAPTOPsv01r02Section 4.2Laptophostplatformtestrequirements,Whenthemodularapproachisapplied, transmittersandmodulesmustbetestedinitiallywithoutusingarepresentativehost forincorporationinthedisplayand/orkeyboardofqualifiedlaptopcomputersfor standaloneuseaccordingtothefollowingminimumtestseparationdistanceand antennainstallationrequirements.Theseparationdistancerequiredforincorporation inqualifiedhostsisdescribedinKDBPublication447498D01;iteme)of4.1and itema)of5.2.2etc a) ≤ 25mmbetweentheantennaanduserforincorporationinlaptopdisplayscreens b) ≤ 5mmbetweentheantennaanduser;onlywhenincorporationinthekeyboard compartmentisrequiredbythehosts,forbottomsurfaceandedgeexposure conditions c)theantennasusedbythehostmusthavebeentestedforequipmentapprovalor qualifyforSARtestexclusion d)theantennapolarization,physicalorientation,rotationandinstallation configurationsusedbythehostmusthavebeentestedforcompliancefortherequired displayand/orkeyboardinstallationconditionsandtestseparationdistance(s)or qualifyforSARtestexclusion WhentheSARTestExclusionThresholdinKDBPublication447498D01applies,a minimumtestseparationdistanceof25mmisrequiredtodeterminetestexclusionfor thedisplay,and5mmforthekeyboardcompartment. BluetoothBR/EDR: pt=-2.45dBm=0.5689mWat2441MHz So(0.5689mW/5mm)x √ 2.441GHz=0.1778<3 BluetoothLowEnergy: pt=-3.56dBm=0.4406mWat2440MHz So(0.4406mW/5mm)x √ 2.440GHz=0.1376<3 2.4GWIFI: pt=-2.58dBm=0.5521mWat2437MHz So(0.5521mW/5mm)x √ 2.437GHz=0.1724<3 FCCID:2ASC7DS600BTPage3of3ReportNo.:CTL2507222076-WFH 5.2GWIFI: pt=-3.45dBm=0.4519mWat5190MHz So(0.4519mW/5mm)x √ 5.190GHz=0.2059<3 5.8GWIFI: pt=-4.22dBm=0.3784mWat5825MHz So0.3784mW/5mm)x √ 5.825GHz=0.1827<3 Conclusion: ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093forthe uncontrolledRFExposureandSARExclusionThresholdperKDB447498v06.

ShenzhenCTLTestingTechnologyCo.,Ltd. Tel:+86-755-89486194E-mail:[email protected] TESTREPORT 47CFRPart15,SubpartE15.407 ReportReferenceNo. .................... :CTL2507222076-WF04 Compiledby: (position+printedname+signature) HappyGuo (Fileadministrators) Testedby: (position+printedname+signature) JackWang (TestEngineer) Approvedby: (position+printedname+signature) IvanXie (Manager) ProductName.................................: CarDiagnosticTool Model/Typereference .................... :DS600BT ListModel(s) .................................... : DS610BT,DS620BT,DS630BT,DS640BT,DS650BT, DS660BT,DS670BT,DS680BT,DS690BT TradeMark.......................................: ANCEL FCCID ............................................... : 2ASC7DS600BT Applicant’sname ........................... : OBDSPACETECHNOLOGYCO,.LTD Addressofapplicant.....................: RoomD03,BuildingA,No.973,MinZhiAvenueLongHuadistrict, ShenzhenCity,China TestFirm...........................................: ShenzhenCTLTestingTechnologyCo.,Ltd. AddressofTestFirm.....................: Floor1-A,BaishaTechnologyPark,No.3011,ShahexiRoad, NanshanDistrict,Shenzhen,China518055 Testspecification...........................: Standard............................................:47CFRPart15,SubpartE15.407:Generaltechnical requirements. TRFOriginator..................................: ShenzhenCTLTestingTechnologyCo.,Ltd. MasterTRF ....................................... :Dated2011-01 Dateofreceiptoftestitem..........: Aug20,2025 DateofTestDate............................: Aug20,2025-Sep16,2025 DateofIssue .................................... : Sep17,2025 Result................................................: Pass ShenzhenCTLTestingTechnologyCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenCTLTestingTechnologyCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenCTLTestingTechnologyCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. V1.0Page2of47ReportNo.:CTL2507222076-WF04 TESTREPORT TestReportNo.:CTL2507222076-WF04 Sep17,2025 Dateofissue EquipmentunderTest: CarDiagnosticTool SampleNo:CTL2507222076 Model/Type: DS600BT ListedModels : DS610BT,DS620BT,DS630BT,DS640BT,DS650BT, DS660BT,DS670BT,DS680BT,DS690BT Applicant: OBDSPACETECHNOLOGYCO,.LTD Address : RoomD03,BuildingA,No.973,MinZhiAvenueLongHua district,ShenzhenCity,China Manufacturer: OBDSPACETECHNOLOGYCO,.LTD Address : RoomD03,BuildingA,No.973,MinZhiAvenueLongHua district,ShenzhenCity,China TestresultPass* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedpage5. Thetestresultspresentedinthisreportrelateonlytotheobjecttested. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovaloftheissuingtesting laboratory. V1.0Page3of47ReportNo.:CTL2507222076-WF04 **ModifiedHistory** RevisionsDescriptionIssuedDataReportNo.Remark Version1.0InitialTestReportRelease2025-09-17CTL2507222076-WF04TracyQi V1.0Page4of47ReportNo.:CTL2507222076-WF04 TableofContentsPage 1.SUMMARY .............................................................................................................................................................................. 5 1.1.TESTSTANDARDS ............................................................................................................................................................ 5 1.2.TESTDESCRIPTION ............................................................................................................................................................... 5 1.3.TESTFACILITY ...................................................................................................................................................................... 6 1.4.STATEMENTOFTHEMEASUREMENTUNCERTAINTY ...................................................................................................................... 6 1.5.EUTCONFIGURATION ........................................................................................................................................................... 7 2.GENERALINFORMATION ....................................................................................................................................................... 8 2.1.ENVIRONMENTALCONDITIONS ................................................................................................................................................ 8 2.2.GENERALDESCRIPTIONOFEUT ............................................................................................................................................. 8 2.3.DESCRIPTIONOFTESTMODESANDTESTFREQUENCY ................................................................................................................ 9 2.4.EQUIPMENTSUSEDDURINGTHETEST ................................................................................................................................... 10 2.5.RELATEDSUBMITTAL(S)/GRANT(S) ..................................................................................................................................... 11 2.6.MODIFICATIONS ................................................................................................................................................................. 11 3.TESTCONDITIONSANDRESULTS ......................................................................................................................................... 12 3.1.CONDUCTEDEMISSIONSTEST .............................................................................................................................................. 12 3.2.RADIATEDEMISSIONS ......................................................................................................................................................... 17 3.3.MAXIMUMCONDUCTEDAVERAGEOUTPUTPOWER ...............................................…

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ShenzhenCTLTestingTechnologyCo.,Ltd. Floor1-A,BaishaTechnologyPark,No.3011,ShahexiRoad,NanshanDistrict,Shenzhen,China518055 Tel:+86-755-89486194E-mail:[email protected] Annexfor5GWi-FiBAND1 TestReportNo.:CTL2507222076-WF04 TABLEOFCONTENTS 1.DutyCycle ............................................................................................................................................................. 3 1.1TestResult..................................................................................................................................................3 1.1.1Ant1 .................................................................................................................................................. 3 1.2TestGraph..................................................................................................................................................4 1.2.1Ant1..................................................................................................................................................4 2.Bandwidth ........................................................................................................................................................... 12 2.1TestResult...............................................................................................................................................12 2.1.1OBW ............................................................................................................................................... 12 2.1.226dBBW.......................................................................................................................................12 2.2TestGraph................................................................................................................................................14 2.2.1OBW ............................................................................................................................................... 14 3.MaximumConductedOutputPower..............................................................................................................30 3.1TestResult ............................................................................................................................................... 30 3.1.1Power.............................................................................................................................................30 4.MaximumPowerSpectralDensity..................................................................................................................31 4.1TestResult...............................................................................................................................................31 4.1.1PSD-Band1 ................................................................................................................................... 31 4.2TestGraph................................................................................................................................................32 4.2.1PSD ................................................................................................................................................ 32 Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT 5.FrequencyStability............................................................................................................................................39 5.1TestResult...............................................................................................................................................39 5.1.1Ant1 ................................................................................................................................................ 39 Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT Page3/41 1.DutyCycle 1.1TestResult 1.1.1Ant1 Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) DutyCycle (%) DutyCycle CorrectionFactor(dB) Max.DC Variation(%) 802.11aSISO 51801.3991.45796.020.180.03 52001.3971.45795.880.180.07 52401.3991.45796.020.180.07 802.11n (HT20) SISO 51801.3111.36995.760.190.03 52001.3101.36995.690.190.07 52401.3111.37095.690.190.07 802.11n (HT40) SISO 51900.6500.70891.810.370.03 52300.6490.70891.670.380.04 802.11ac (VHT20) SISO 51800.6870.74592.210.350.04 52000.6870.74592.210.350.04 52400.6850.74591.950.360.11 802.11ac (VHT40) SISO 51900.3530.41285.680.670.06 52300.3540.41285.920.660.03 802.11ac (VHT80) SISO52100.1880.24875.811.200.08 Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT Page4/41 1.2TestGraph 1.2.1Ant1 802.11a_LCH_5180MHz_Ant1_NTNV 802.11a_MCH_5200MHz_Ant1_NTNV Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT Page5/41 Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT Page6/41 802.11a_HCH_5240MHz_Ant1_NTNV 802.11n(HT20)_LCH_5180MHz_Ant1_NTNV Annexfor5GWi-FiBAND1TestReportNo.:CTL2507222076-WF04 FCCID:2ASC7DS600BT Page7/41 802.11n(HT20)_MCH_5200MHz_Ant1_NTNV 802.11n(HT20)_HCH_5240MHz_Ant1_NTNV Annexfor5GWi-FiBAND1TestReportN…

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