2AUARDIAG2THINKDIAG 2

TKD04

ContactPerson:WinterZhao Tel.:(183)369-22766 Email:[email protected] 7435 Oakland Mills Road Columbia,MD 21046 Ref: Attestation Statements Part 2.911(d)(7)Filing THINKCAR TECH CO., LTD.certifies that, as of the date of the filing of the application, Thinkcar Tech Inc. is our designated U.S. agent for service of process for representative on behalf of the Applicant noted below for all future FCC ID certification. THINKCAR TECH 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. Thinkcar Tech Inc. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for representative on behalf of the Applicant noted below for all future FCC ID certification. Designated U.S. Agent Information: Name: Thinkcar Tech Inc. Address: 720 S Rochester Ave Unit B, Ontario, CA 91761,USAOntario, CA 91761United States THINKCAR TECH CO., LTD. Address: 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian,L onggang District,Shenzhen FCC ID:2AUARDIAG2 FRN:0028727014 Federal Communications Commission Authorization and Evaluation Division FRN:0029099298 m Sincerely, SignedonbehalfofTHINKCARTECHCO. LTD. Signed on behalf of Thinkcar Tech Inc. Name:JinyuanTang Name:WinterZhao Title:ManageTitle: r Date:2023-9-12 Date:2023-9-12

TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 1 OF 6 KC.IA.00426(TVCI) AntennaSpecification 1.Application: Thisapplicationshallapplyforantennaunitwhichshallbeusedsuchasautomotive, conventionalcommunications,smarthome,etc.. 2. ElectricalSpecification: Thosespecificationswerespeciallydefinedfor customer’s model,andall characteristicsweremeasuredunderthemodel’shandsettestingjig. 2-1.FrequencyBand: FrequencyBandMHz WiFi/BT2400~2500MHz 2-2.Impedance 50ohmnominal 2-3.VSWR 2-3-1.MeasurementfrequencypointsandVSWRvalue FrequencyBand(MHz) 24002500 TypicalValue:（VSWR） 1.61.4 TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 2 OF 6 2-3-4Measuring Method 1.A50Ωcoaxialcableisconnectedtotheantenna.Thenthiscableis connectedtoanetworkanalyzertomeasuretheVSWR. 2.Keepingthisjigawayfrommetalatleast20cm 2-3-5Picture TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 3 OF 6 2-4.EfficiencyandGain 4-5.1Measuremethod 1.Usingalowlosscoaxialcabletolinkastandardhandsetjig 2.Fixedthishandsetjigonchamber’srotatorplane 3.Linkingjigintonetworkanalyzerportandusingaprobinghornantennato collectdata. 4.Usinganotherstandardgainhornantennatocalibratedthosedata 4-5.2Chamberdefinition 1.Ananechoicchamber(7mx4mx3m)whichsatisfiedfar-fieldconditionwasappliedto avoidmulti-patheffect 2.Thequiteroomregionis40cmx40cmx40cmatthecenterofrotator 3.ThedistancebetweenDUTandstandardantennais4.38m 4.Probingantenna(9120Dhornantenna)andstandardgainhornantenna(BBHA9120LPF 700MHz~6GHz) 4.38 m Rotatory controller Vector Network Aanlyzer Port 2Port 1 DUT Far-Field Chamber Std. Ant. TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 4 OF 6 2-4-1EfficiencyandGainand3DDate Frequency/MhzMaxGain/dBiEfficiency/% 24003.3651.59 24104.1553.45 24203.7855.29 24304.2354.16 24403.4651.78 24503.4950.74 24603.2352.07 24703.2951.02 24803.5953.95 24903.6153.55 25003.8654.16 TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 1 OF 6 3.MechanicalSpecification: 3-1.MechanicalConfiguration(Unit:mm) Theappearanceoftheantennaisaccordingtodrawing Technicalrequirements: 1.Electricalparameters: 1.1:Impedance50Ω 1.2:Frequencyband:2400-2500MHz 1.3：VSWR<2 1.4:Gain:3dBi 2:Environment: 2.1:Storagetemperature:-20TO+60°C 2.2:Operatingtemperature:-20TO+60°C 3:Thefiguremarked(△)asthekeycontrolsize 4:Environmentalrequirements:inlinewithTXDG3-QA-001"GeneralRestrictedsubstancescontrolstandards. TOXUTECHNOLOGYCO.,LTD.Address:5F,No.52,XikengRoad,XinheCommunity,FuchengStreet,LonghuaDistrict,Shenzhen UNLESSOTHERSPECIFIEDTOLERANCESON ： TOXUTECHNOLOGYCO.,LTD. X＝±X.X＝±X.XX＝± ANGLES＝±HOLEDIA＝± SCALE：UNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFTOXU TECHNOLOGYCO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY：LICHECKEDBY:YS DESIGNEDBY:Dewen APPROVEDBY:YS TITLE：KC.IA.00426AntennaSpecification SPECREV. P0 PAGE 2 OF 6 4.Packagingspecification： Productnumber ： xxxxx Productmodel：xxxxx 一、Labelrequirements： Customerxxx supplierxxxxx Materialcodingxx Productmodelxx NumberXXXPCSFactorydateXXX Remarks 二、Boxing： Jobdescription ： 1.Innerpackaging： XXpcsAbag 2.Externalpackaging ： XxPCS ； 3.Mattersneedingattention： a．Whethertoaddpartitionandpearlcotton； b ． Labelattachments,suchasROHS,etc. ； PE袋 PEbag Paperbox

THINKCARTECHCO.,LTD. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:September21,2023 Subject;RequestforConfidentiality FCCID:2AUARDIAG2 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram OperationalDescription 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:JinyuanTang Title:Marketingspecialist

EffectiveDate:April2,2020QSF7.6.4-8–AgentAuthorizationLetterTemplatePage1of1 RevisionDate:Revision:0 THINKCARTECHCO.,LTD. Date：2023-9-14 ProductModelNumber:TKD04 FCCID:2AUARDIAG2 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C.CanadaV5J5K5to actonourbehalfonallmattersconcerningtheabovenamedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformationrelatedtotheapproval projecttotheappliedcertificationbodyandtothenotificationentitiesandtodiscussanyissues concerningtheapprovalapplication.AnyandallactscarriedoutbyORGANIZATION.onour behalfshallhavethesameeffectasactsofourown. By:JinyuanTang ContactListedonFCCWesbite Title:Marketingspecialist Email:[email protected] Telephone:0755-23760920 Onbehalfof:THINKCARTECHCO.,LTD.

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ShenzhenHuaxiaTestingTechnologyCo.,Ltd. 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20230901650E-03 Applicant: THINKCARTECHCO.,LTD. AddressofApplicant: 2606,building4,phaseII,TiananYungu,Gangtoucommunity,Bantian, LonggangDistrict,Shenzhen EquipmentUnderTest(EUT): EUTName:THINKDIAG2 ModelNo.:TKD04 TestModelNo.:TKD04 BrandName:THINKCAR,XHINKCAR,MUCAR FCCID: 2AUARDIAG2 Standards: 47CFRPart1.1307 47CFRPart1.1310 447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2023-09-07 DateofTest: 2023-09-07to2023-09-15 DateofIssue:2023-09-21 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd ReportNo.:CQASZ20230901650E-03 Page:2of8 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230901650E-03Rev.01 Initialreport 2023-09-21 ShenzhenHuaxiaTestingTechnologyCo.,Ltd ReportNo.:CQASZ20230901650E-03 Page:3of8 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBTCLASSIC.......................................................................................................................4 3.4GENERALDESCRIPTIONOFBLE...................................................................................................................................4 4MPEEVALUATION...........................................................................................................................................................6 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................6 4.1.1Limits....................................................................................................................................................................6 4.1.2TestProcedure...................................................................................................................................................6 4.1.3EUTRFExposure..............................................................................................................................................7 ShenzhenHuaxiaTestingTechnologyCo.,Ltd ReportNo.:CQASZ20230901650E-03 Page:4of8 3GeneralInformation 3.1ClientInformation Applicant: THINKCARTECHCO.,LTD. AddressofApplicant: 2606,building4,phaseII,TiananYungu,Gangtoucommunity,Bantian, LonggangDistrict,Shenzhen Manufacturer: THINKCARTECHCO.,LTD. AddressofManufacturer: 2606,building4,phaseII,TiananYungu,Gangtoucommunity,Bantian, LonggangDistrict,Shenzhen Factory: THINKCARTECHCO.,LTD. AddressofFactory: 2606,building4,phaseII,TiananYungu,Gangtoucommunity,Bantian, LonggangDistrict,Shenzhen 3.2GeneralDescriptionofEUT ProductName: THINKDIAG2 ModelNo.: TKD04 TestModelNo.: TKD04 TradeMark: THINKCAR,XHINKCAR,MUCAR SoftwareVersion: V1.0 HardwareVersion: DIAG2 EUTPowerSupply: PowersupplyDC12V 3.3GeneralDescriptionofBTClassic OperationFrequency: 2402MHz~2480MHz BluetoothVersion: BluetoothSpec5.0 ModulationTechnique: FrequencyHoppingSpreadSpectrum(FHSS) ModulationType: GFSK,π/4DQPSK,8DPSK NumberofChannel: 79 TransferRate:1Mbps/2Mbps/3Mbps HoppingChannelType: AdaptiveFrequencyHoppingsystems SampleType: MobilePortable AntennaType:FPCantenna AntennaGain:4.23dBi Cableloss: 1.0dB 3.4GeneralDescriptionofBLE OperationFrequency: 2402MHz~2480MHz BluetoothVersion: BluetoothSpec5.0 ModulationType: GFSK NumberofChannel: 79 TransferRate:1Mbps SampleType: MobilePortable ShenzhenHuaxiaTestingTechnologyCo.,Ltd ReportNo.:CQASZ20230901650E-03 Page:5of8 AntennaType:FPCantenna AntennaGain:4.23dBi Cableloss: 1.0dB Note： Theaboveparameterswilldirectlyaffectthetestresults.Theinformationisprovidedbytheapplicant. ShenzhenHuaxiaTestingTechnologyCo.,Ltd ReportNo.:CQASZ20230901650E-03 Page:6of8 4MPEEvaluation 4.1RFExposureComplianceRequirement 4.1.1Limits ThetableappliestoanyRFsource(i.e.,singlefixed,mobile,andportabletransmitters)andspecifiespower anddistancecriteriaforeachofthefivefrequencyrangesusedfortheMPElimits.Thesecriteriaapplyat separationdistancesfromanypartoftheradiatingstructureofatleastλ/2π.Thethresholdsarebasedonthe generalpopulationMPElimitswithasingleperfectreflection,outsideofthereactivenear-field,andinthemain beamoftheradiator.FormobiledevicesthatarenotexemptperTableB.1[Table1of§1.1307(b)(1)(i)(C)]at distancesfrom20cmto40cmandin0.3GHzto6GHz,evaluationofcompliancewiththeexposurelimitsin §1.1310isnecessaryiftheERPofthedeviceisgreaterthanERP20cminFormula(B.1)[repeatedfrom§ 2.1091(c)(1)and§1.1307(b)(1)(i)(B)]. IftheERPisnoteasilyobta…

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ShenzhenHuaxiaTestingTechnologyCo.,Ltd. 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonly tothesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20230901650E-02 Applicant: THINKCARTECHCO.,LTD. AddressofApplicant: 2606,building4,phaseII,TiananYungu,Gangtoucommunity,Bantian, LonggangDistrict,Shenzhen EquipmentUnderTest(EUT): Product:THINKDIAG2 ModelNo.:TKD04 TestModelNo.:TKD04 BrandName:THINKCAR,XHINKCAR,MUCAR FCCID:2AUARDIAG2 Standards:47CFRPart15,SubpartC DateofReceipt:2023-09-07 DateofTest: 2023-09-07to2023-09-15 DateofIssue:2023-09-21 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230901650E-02 Page: 2 of 38 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230901650E-02Rev.01Initialreport2023-09-21 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230901650E-02 Page: 3 of 38 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement 47CFRPart15,SubpartCSection 15.203/15.247(c) ANSIC63.102013PASS ACPowerLine Conducted Emission 47CFRPart15,SubpartCSection 15.207 ANSIC63.102013N/A ConductedPeakOutput Power 47CFRPart15,SubpartCSection 15.247(b)(1) ANSIC63.102013PASS 6dBOccupied Bandwidth 47CFRPart15,SubpartCSection 15.247(a)(2) ANSIC63.102013PASS PowerSpectralDensity 47CFRPart15,SubpartCSection 15.247(e) ANSIC63.102013PASS Band-edgeforRF ConductedEmissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.102013PASS RFConductedSpurious Emissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.102013PASS RadiatedSpurious Emissions 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.102013PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.102013PASS Remark: N/A:Inthiswholereportnotapplication SincetheEUTispoweredbyAutomobilepower,thisACpowerlineconductedemissiontestshouldbenot applicable ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230901650E-02 Page: 4 of 38 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................4 4GENERALINFORMATION...........................................................................................................................................5 4.1CLIENTINFORMATION.................................................................................................................................................5 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................5 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................7 4.4TESTENVIRONMENT...................................................................................................................................................8 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................8 4.6STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................................9 4.7TESTLOCATION........................................................................................................................................................10 4.8TESTFACILITY..........................................................................................................................................................10 4.9DEVIATIONFROMSTANDARDS..................................................................................................................................10 4.10OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................10 4.11EQUIPMENTLIST.....................................................................................................................................................11 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................12 5.1ANTENNAREQUIREMENT..........................................................................................................................................12 5.2CONDUCTEDPEAKOUTPUTPOWER..........................................................................................................................13 5.36DBOCCUPYBANDWIDTH........................................................................................................................................16 5.4POWERSPECTRALDENSITY......................................................................................................................................19 5.5BAND-EDGEFORRFCONDUCTEDEMISSIONS..........................................................................................................22 5.6SPURIOUSRFCONDUCTEDEMISSIONS.....................................................................................................................24 5.7RADIATEDSPURIOUSEMISSION&RESTRICTEDBANDS..................…

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TestPhotos 1.1 RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: Above1GHz: