2AHFT519Smart Watch

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ShenzhenDOIntelligentTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2023-7-3 FCCID:2AHFT519 Ref.#1:AttestationStatementsPart2.911(d)(5)(i)Filing ShenzhenDOIntelligentTechnologyCo.,Ltdcertifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ref.#2:AttestationStatementsPart2.911(d)(5)(ii)Filing ShenzhenDOIntelligentTechnologyCo.,Ltdcertifiesthat,asofthedateofthefiling oftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Applicant:ShenzhenDOIntelligentTechnologyCo.,Ltd Address:11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict, Shenzhen,China ContactPerson: WuDajun Tel.:0755-82529675 Email:[email protected] Sincerely, Signature:

EffectiveDate:April2,2020QSF7.6.4-8–AgentAuthorizationLetterTemplatePage1of1 RevisionDate:Revision:0 ShenzhenDOIntelligentTechnologyCo.,Ltd Date：2023-7-3 ProductModelNumber: FCCID：2AHFT519 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C.CanadaV5J5K5to actonourbehalfonallmattersconcerningtheabovenamedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformationrelatedtotheapproval projecttotheappliedcertificationbodyandtothenotificationentitiesandtodiscussanyissues concerningtheapprovalapplication.AnyandallactscarriedoutbyORGANIZATION.onour behalfshallhavethesameeffectasactsofourown. By:WuDajun ContactListedonFCCWesbite Title: GeneralManager Email:[email protected] Telephone:0755-82529675 Onbehalfof:ShenzhenDOIntelligentTechnologyCo.,Ltd

ShenzhenDOIntelligentTechnologyCo.,Ltd Address ： 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict, Shenzhen,China FRN:0025289893 Date:2023-7-7 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2AHFT519 ShenzhenDOIntelligentTechnologyCo.,Ltdcertifiesthat,asofthedateofthefilingofthe application,ClevelandInternationalTradeAgency.isourdesignatedU.S.agentforserviceof processfortheabovereferencedFCCID.ShenzhenDOIntelligentTechnologyCo.,Ltd acceptstomaintainanagentfornolessthanoneyearafterthegranteehasterminatedall marketingandimportationortheconclusionofanyCommission-relatedproceedinginvolving theequipment. ClevelandInternationalTradeAgencyaccepts,asofthedateofthefilingoftheapplication, theobligationofthedesignatedU.S.agentforserviceofprocessfortheabovereferenced FCCID. DesignatedU.S.AgentInformation: Name:ClevelandInternationalTradeAgency Address:4033STClairAve,Cleveland,OH44103,USA FRN:0033401837 ContactPerson:BeckyDeng Tel.:216-600-0606 Email:[email protected] Sincerely, SignedonbehalfofShenzhenDOIntelligent TechnologyCo.,Ltd SignedonbehalfofClevelandInternational TradeAgency signature signature Name:WuDajunName:BeckyDeng Title:GeneralmanagerTitle:Manager Date:2023-7-7Date:2023-7-7

ShenzhenDOIntelligentTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:July7,2023 Subject;RequestforConfidentiality FCCID:2AHFT519 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:WuDajun Title:GeneralManager

Page 1 Admit it The product description: The manufacturer： Welletronics Communication Technology Limited Project type： IDS03 The name of the material： Metal mid-frame antenna Specification/Color： Material code： Sign the sample date： 2023.06.30 The version number： V1.0 note： The attachment：  Description of electrical and mechanical properties (Specification)  Manufacturing flow chart  QCEngineering drawing  The sample  CPK report  Full size measurement report  Reliability test report  The packing way  Raw material list report /RoHS report/HF/REACH Supplier sign and approve artificial： audit： approval： The above shall be filled in by the supplier and the following shall be filled in by Aidu department Confirm the content Verify the results Confirm person/da te Technical confirmation column Supplier quality ☐ RoHS material ☐ no RoHS material ☐Meet REACH requirements ☐ Meet halogen-free requirement s ☐Other Environmen tal Requiremen ts ID of Design Department ☐The customer request ID ☐Color confirmation ☐Surface process confirmatio n ☐Shell, hardware, key material Structural engineer ☐ Confirm the size of 2D drawing files ☐Specifications and technical requirements ☐Focus on size marking control ☐Electrical performance parameter ☐Adapter validation ☐function ☐Shell, hardware, key material ☐The effect Hardware engineer ☐ Confirm the size of 2D drawing files ☐Specifications and technical requirements ☐Focus on size marking control ☐Electrical performance parameter ☐Adapter validation ☐function ☐Shell, hardware, key material ☐The effect R&d quality ☐Test standard confirmation ☐appearance ☐Standardization of dimension marking (key dimensions) ☐ Reliability verification ☐Adapter validation ☐function ☐The effect Final confirmation Project Manager ☐Acknowledge the completeness of the documents ☐Standardization of dimension marking (key dimensions) ☐Specifications and technical requirements ☐appearance ☐Electrical performance parameter ☐function ☐The effect Admitted conditions： ☐ Official recognition ☐ Set limit to admit ☐ Refuse to admit Distribution department： ☐ IQC ☐ supplier ☐ The customer ☐ after-sales☐ SQE/ Document control ☐ other ________ QF-QMP-QA01-01 Confidential Informatio Page 2 Catalog One 、The cover ··············································································· 1 Two、 Directory..................................................................................2 Three 、Change history ······································································· 3 Four、 Electrical characteristics...........................................................4-6 Confidential Informatio Page 3 Three 、Change history Change of resume Serial number Date of change entry name Edition Change content Remarks 1 Jun 30, 2023 IDS03 Metal mid-frame antenna V1.0 nothing New issue Confidential Informatio Page 4 Four、 Electrical characteristics 1.Antenna Structur Figure antenna structure Confidential Informatio Page 5 2.Test Results BT SWR Te s t R e p o r No source by space test efficiency/pattern Free space Add the arm dBi dBi Confidential Informatio Page 6 Match Antenna Element Value E1 E2 0Ω E3 E4 0Ω 3. The direction of figure

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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.:CQASZ20230601085E-03 Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): EUTName: SmartWatch ModelNo.: IDSport03 TestModelNo.: IDSport03 BrandName: IDO FCCID:2AHFT519 Standards: 47CFRPart1.1307 47CFRPart2.1093 KDB447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2023-06-15 DateofTest: 2023-06-15to2023-06-25 DateofIssue:2023-07-07 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-03 Page:2of8 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230601085E-03Rev.01 Initialreport 2023-07-07 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-03 Page:3of8 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBLE...................................................................................................................................4 3.4GENERALDESCRIPTIONOFBT......................................................................................................................................4 4RFEXPOSUREEVALUATION.......................................................................................................................................5 4.1SAREVALUATIONFORPORTABLECONDITION...........................................................................................................5 4.1.1StandardRequirement......................................................................................................................................5 4.1.2Limits....................................................................................................................................................................5 4.1.3SARExclusionEvaluationResult...................................................................................................................7 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-03 Page:4of8 3GeneralInformation 3.1ClientInformation Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China Manufacturer: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofManufacturer: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China Factory: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofFactory: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China 3.2GeneralDescriptionofEUT ProductName: SmartWatch ModelNo.: IDSport03 TestModelNo.: IDSport03 TradeMark: IDO SoftwareVersion: V1.00.01 HardwareVersion: V1.1 PowerSupply: Li-ionbattery:DC3.8V300mAh,ChargebyDC5Vforadapter SimultaneousTransmissionSimultaneousTXissupportedandevaluatedinthisreport. SimultaneousTXisnotsupported. 3.3GeneralDescriptionofBLE OperationFrequency:2402MHz~2480MHz ModulationType:GFSK TransferRate:1Mbps NumberofChannel:40 ProductType:MobilePortable AntennaType: Metalmediumframeantenna AntennaGain: -2.99dBi 3.4GeneralDescriptionofBT OperationFrequency:2402MHz~2480MHz ModulationType:GFSK,π/4DQPSK,8DPSK TransferRate:1Mbps/2Mbps/3Mbps NumberofChannel:79 ProductType:MobilePortable AntennaType: Metalmediumframeantenna AntennaGain: -2.99dBi ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-03 Page:5of8 4RFExposureEvaluation 4.1 SAREvaluationforPortablecondition 4.1.1StandardRequirement 447498D04InterimGeneralRFExposureGuidancev01 3.2.SARTestReductionGuidance SARtestreductionprocedures[Glossary]allowusingaparticularsetoftestdataasrepresentative ofother,similar,testconditions.Thismaybeappliedfordatawithindifferenttestpositions(e.g.body, head,extremity),wirelessmodes(e.g.Wi-Fi,cellular),andfrequencybands.Thistestreductionprocess providesfortheuseoftestdataforonespecificchannel,whilereferencingtothosedatafordemonstrating complianceinotherrequiredchannelsforeachtestpositionofanexposurecondition,withintheoperating modeofafrequencyband.Thisislimitedspecificallytowhenthereported1-gor10-gSARforthemid- bandorhighestoutputpowerchannelmeetsanyofthefollowingconditions. 4.1.2Limits SAR-basedthresholdsarederivedbasedonfrequency,power,andseparationdistanceoftheRF source.Theformuladefinesthethresholdsingeneralforeitheravailablemaximumtimeaveragedpoweror maximumtime-averagedERP,whic…

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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)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20230601085E-01 Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): Product: SmartWatch ModelNo.: IDSport03 TestModelNo.: IDSport03 BrandName: IDO FCCID: 2AHFT519 Standards:47CFRPart15,SubpartC DateofReceipt:2023-06-15 DateofTest: 2023-06-15to2023-06-25 DateofIssue:2023-07-07 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:2of108 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230601085E-01Rev.01 Initialreport 2023-07-07 Note: Thedifferencebetweenthe2#and3#prototypesandthe1#prototypeisthatthesupplier ofthescreenisnotconsistent Thedifferencebetweenthe4#prototypeandthe1#prototypeisthatthesupplierofthe motorisnotconsistent Thedifferencebetweenthe5#prototypeandthe1#prototypeisthatthesupplierofthe batteryisinconsistent ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:3of108 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement47CFRPart15.203/PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSIC63.10-2013PASS ConductedPeakOutput Power 47CFRPart15.207ANSIC63.10-2013PASS 20dBOccupiedBandwidth47CFRPart15.247ANSIC63.10-2013PASS CarrierFrequencies Separation 47CFRPart15.247ANSIC63.10-2013PASS HoppingChannelNumber47CFRPart15.247ANSIC63.10-2013PASS DwellTime47CFRPart15.247ANSIC63.10-2013PASS PseudorandomFrequency HoppingSequence 47CFRPart15.247ANSIC63.10-2013PASS Band-edgeforRF ConductedEmissions 47CFRPart15.247ANSIC63.10-2013PASS RFConductedSpurious Emissions 47CFRPart15.247ANSIC63.10-2013PASS RadiatedSpurious emissions 47CFRPart15.209ANSIC63.10-2013PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15.205/15.209ANSIC63.10-2013PASS Remark: Thetestedsample(s)andthesampleinformationareprovidedbytheclient. Tx:InthiswholereportTx(ortx)meansTransmitter. Rx:InthiswholereportRx(orrx)meansReceiver. RF:InthiswholereportRFmeansRadiatedFrequency. CH:InthiswholereportCHmeanschannel. Volt:InthiswholereportVoltmeansVoltage. Temp:InthiswholereportTempmeansTemperature. Humid:InthiswholereportHumidmeanshumidity. Press:InthiswholereportPressmeansPressure. N/A:Inthiswholereportnotapplication ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:4of108 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 4.9ABNORMALITIESFROMSTANDARDCONDITIONS......................................................................................................10 4.10OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................10 4.11EQUIPMENTLIST.....................................................................................................................................................11 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................12 5.1ANTENNAREQUIREMENT..........................................................................................................................................12 5.2CONDUCTEDEMISSIONS............................................................................................................................................13 5.3CONDUCTEDPEAKOUTPUTPOWER.................................................................…

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ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:61of108 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:62of108 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:63of108 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:64of108 5.9SpuriousRFConductedEmissions TestRequirement:47CFRPart15CSection15.247(d) TestMethod:ANSIC63.10:2013 TestSetup: Remark:Offset=cableloss+attenuationfactor. Limit:Inany100kHzbandwidthoutsidethefrequencybandinwhichthespread spectrumintentionalradiatorisoperating,theradiofrequencypowerthatis producedbytheintentionalradiatorshallbeatleast20dBbelowthatinthe 100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthe desiredpower,basedoneitheranRFconductedoraradiated measurement. ExploratoryTestMode:Non-hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:ThroughPre-scan,findtheDH5ofdatatypeistheworstcaseofGFSK modulationtype,2-DH5ofdatatypeistheworstcaseofπ/4DQPSK modulationtype,3-DH5ofdatatypeistheworstcaseof8DPSKmodulation type. TestResults:Pass ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:65of108 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:66of108 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:67of108 DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:68of108 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:69of108 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:70of108 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:71of108 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:72of108 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:73of108 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:74of108 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:75of108 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:76of108 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:77of108 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:78of108 3DH5_Ant1_2480_1000~26500 Remark: Pretest9kHzto25GHz,findthehighestpointwhentesting,soonlytheworstdatawereshowninthetest report.PerFCCPart15.33(a)and15.31(o),Theamplitudeofspuriousemissionsfromintentionalradiators whichareattenuatedmorethan20dBbelowthepermissiblevalueneednotbereportedunlessspecifically requiredelsewhereinthispart. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:79of108 5.10 OtherrequirementsFrequencyHoppingSpreadSpectrumSystem TestRequirement:47CFRPart15CSection15.247(a)(1),(h)requirement: Thesystemshallhoptochannelfrequenciesthatareselectedatthesystemhopping ratefromaPseudorandomorderedlistofhoppingfrequencies.Eachfrequencymustbeusedequally ontheaveragebyeachtransmitter.Thesystemreceiversshallhaveinputbandwidthsthatmatchthe hoppingchannelbandwidthsoftheircorrespondingtransmittersandshallshiftfrequenciesin synchronizationwiththetransmittedsignals. Frequencyhoppingspreadspectrumsystemsarenotrequiredtoemployallavailablehopping channelsduringeachtransmission.However,thesystem,consistingofboththetransmitterandthe receiver,mustbedesignedtocomplywithalloftheregulationsinthissectionshouldthe transmitterbepresentedwithacontinuousdata(orinformation)stream.Inaddition,asystem employingshorttransmissionburstsmustcomplywiththedefinitionofafrequencyhoppingsystem andmustdistributeitstransmissionsovertheminimumnumberofhoppingchannelsspecifiedin thissection. Theincorporationofintelligencewithinafrequencyhoppingspreadspectrumsystemthatpermits thesystemtorecognizeotheruserswithinthespectrumbandsothatitindividuallyand independentlychoosesandadaptsitshopsetstoavoidhoppingonoccupiedchannelsispermitted. Thecoordinationoffrequencyhoppingsystemsinanyothermannerfortheexpresspurposeof avoidingthesimultaneousoccupancyofindividualhoppingfrequenciesbymultipletransmittersis notpermitted. Complianceforsection15.247(a)(1) AccordingtoBluetoothCoreSpecification,thepseudorandomsequencemaybegeneratedinanine- stageshiftregisterwhose5thand9thstage outputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinputofthefirst stage.ThesequencebeginswiththefirstONEof9consecutiveONEs;i.e.theshiftregisterisinitialized withnineones. •Numberofshiftregisterstages:9 •Lengthofpseudo-randomsequence:2 9 -1=511bits •Longestsequenceofzeros:8(non-invertedsignal) AnexampleofPseudorandomFrequencyHoppingSequenceasfollow: Eachfrequencyusedequallyontheaveragebyeachtransmitter. AccordingtoBluetoothCoreSpecification,BluetoothreceiversaredesignedtohaveinputandIF bandwidthsthatmatchthehoppingchannelbandwidthsofanyBluetoothtransmittersandshift frequenciesinsynchronizationwiththetransmittedsignals. Complianceforsection15.247(g) AccordingtoBluetoothCoreSpecification,theBluetoothsystemtransmitsthepacketwiththe pseudorandomhoppingfrequencywithacontinuousdataandtheshortbursttransmissionfromthe Bluetoothsystemisalsotransmittedunderthefrequencyhoppingsystemwiththepseudorandom hoppingfrequencys…

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ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:91of108 Testmode:TransmittingHorizontal Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:92of108 5# Testmode:TransmittingVertical Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:93of108 Testmode:TransmittingHorizontal Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:94of108 5.11.2TransmitterEmissionabove1GHz Worsecasemode:GFSK(DH5)Testchannel:Lowest Frequency Meter Reading Factor Emission Level LimitsOver Detector Type Ant.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 239053.53-9.244.3374-29.67PeakH 240055.47-9.3946.0874-27.92PeakH 480454.13-4.3349.8074-24.20PeakH 720650.381.0151.3974-22.61PeakH 239056.00-9.246.8074-27.20PeakV 240056.69-9.3947.3074-26.70PeakV 480452.90-4.3348.5774-25.43PeakV 720650.341.0151.3574-22.65PeakV Worsecasemode:GFSK(DH5)Testchannel:Middle Frequency Meter Reading Factor Emission Level LimitsOver Detector Type Ant.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 488251.76-4.1147.6574-26.35peakH 732349.081.5150.5974-23.41peakH 488253.32-4.1149.2174-24.79peakV 732349.731.5151.2474-22.76peakV Worsecasemode:GFSK(DH5)Testchannel:Highest Frequency Meter ReadingFactor Emission LevelLimitsOver Detector TypeAnt.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 2483.555.22-9.2945.9374-28.07PeakH 496052.66-4.0448.6274-25.38PeakH 744049.501.5751.0774-22.93PeakH 2483.555.50-9.2946.2174-27.79PeakV 496050.13-4.0446.0974-27.91PeakV 744049.621.5751.1974-22.81PeakV ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:95of108 Worsecasemode: π/4DQPSK(2DH5) Testchannel:Lowest Frequency Meter ReadingFactor Emission LevelLimitsOver Detector TypeAnt.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 239053.86-9.244.6674-29.34PeakH 240056.04-9.3946.6574-27.35PeakH 480454.14-4.3349.8174-24.19PeakH 720649.031.0150.0474-23.96PeakH 239054.97-9.245.7774-28.23PeakV 240054.74-9.3945.3574-28.65PeakV 480453.23-4.3348.9074-25.10PeakV 720649.141.0150.1574-23.85PeakV Worsecasemode: π/4DQPSK(2DH5) Testchannel:Middle Frequency Meter Reading Factor Emission Level LimitsOver Detector Type Ant.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 488250.76-4.1146.6574-27.35peakH 732349.931.5151.4474-22.56peakH 488252.32-4.1148.2174-25.79peakV 732349.541.5151.0574-22.95peakV Worsecasemode: π/4DQPSK(2DH5) Testchannel:Highest Frequency Meter ReadingFactor Emission LevelLimitsOver Detector TypeAnt.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 2483.555.76-9.2946.4774-27.53PeakH 496051.10-4.0447.0674-26.94PeakH 744048.731.5750.3074-23.70PeakH 2483.555.34-9.2946.0574-27.95PeakV 496050.33-4.0446.2974-27.71PeakV 744050.841.5752.4174-21.59PeakV ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230601085E-01 Page:96of108 Worsecasemode:8DPSK(3DH5)Testchannel:Lowest Frequency Meter ReadingFactor Emission LevelLimitsOver Detector TypeAnt.Pol. (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V 239053.53-9.244.3374-29.67PeakH 240055.10-9.3945.7174-28.29PeakH 480451.59-4.3347.2674-26.74PeakH 720651.181.0152.1974-21.81PeakH 239053.67-9.244.4774-29.53PeakV 240055.83-9.3946.4474-27.56PeakV 480452.55-4.3348.2274-25.78PeakV 720648.…

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