VYY-DM25CES1128DC Tubular Motor

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2024-07-11 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing SUBJECT:FCCApplicationforFCCID:VYY-DM25CES1128 ToWhomItMayConcern: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityorany ofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, Signatory [xiaofangLiao,MANAGER]

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO., LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2024-07-11 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA FCCID:VYY-DM25CES1128 ApplicantFRN:0017345455 USAgent–AttestationStatement/Part2.911(d)(7) NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthat,asof 2024-07-11,wehavedesignatedFCCUSAgent,LLCtoacceptserviceofprocessonour behalfforFCCID:VYY-DM25CES1128. NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.,acceptsto maintainanagentofserviceofprocessintheUnitedStatesfornolessthanoneyearafter eitherthegranteehaspermanentlyterminatedallmarketingandimportationoftheapplicable equipmentwithintheU.S.,ortheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. FCCUSAgent,LLC,acceptsasofthedateofthefilingofthisapplication,theobligationof beingthedesignatedagentforthepurposeofacceptingserviceofprocessonbehalfof NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.forFCCID: VYY-DM25CES1128. DesignatedAgentInformation: CompanyName:FCCUSAgent,LLC U.S.AgentFRN:0033402884 Address:3722IllinoisAvenue,SaintCharles,IL,60174,USA ContactPerson:TimPayne Phone:708-571-3148 Email:[email protected] Sincerely, Company:NINGBODOOYAMECHANIC& ELECTRONICTECHNOLOGYCO.,LTD. DesignatedAgent:FCCUSAgent,LLC CompanyRepresentative:xiaofangLiaDesignatedAgentRepresentative:TimPayne Signature: Signature:

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2024-07-11 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing SUBJECT:FCCApplicationforFCCID:VYY-DM25CES1128 ToWhomItMayConcern: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. Sincerely, Signatory [xiaofangLiao,MANAGER]

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2024-07-11 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:VYY-DM25CES1128 ConfidentialityRequest Towhomitmayconcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,wearerequestingthe Commissiontowithholdthefollowingattachment(s)asconfidentialdocumentsfrompublicdisclosureindefinitely. ☒ BlockDiagram ☐ Tune-UpInformation ☒ OperationalDescription ☐ SecurityInformation ☒ Schematics ☐ SoftwareDefinedRadio(SDR)Information ☐ PartsList Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovideunjustifiedbenefitstoits competitors. Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulationsinTitle47CFR §2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthatbusinesssensitiveinformation remainsconfidentialuntiltheactualmarketingofnewlyauthorizeddevices,werequestShortTermConfidentiality ofthefollowingattachment(s); ☐ ExternalPhotos ☒ TestSetupPhotos ☒ InternalPhotos ☒ UserManual ☐For45days,pursuanttoPublicNoticeDA04-1705. or ☒For180dayspursuanttoKDB726920D01. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthisapplicationandall accompanyingdocumentationwillnotbemadebeforethedateoftheGrantforthisapplication. Sincerely, Signatory [xiaofangLiao,MANAGER]

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2024-07-11 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:VYY-DM25CES1128 POWEROFATTORNEY ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd.JandySoonourbehalf,to applytotheFederalCommunicationsCommissiononourequipment.AnyandallactscarriedoutbyWaltek TestingGroup(Shenzhen)Co.,Ltd.JandySoonourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,NINGBODOOYA MECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.arenotsubjecttoadenialoffederalbenefits pursuanttoSection5301oftheAnti-DrugActof1988,21USC853a,andnopartytotheapplicationissubject toadenialoffederalbenefitspursuanttothatsection. Sincerely, Signatory [xiaofangLiao,MANAGER]

ReferenceNo.:WTN24X02036602WPage2of11 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EXHIBIT2-EUTEXTERNALPHOTOGRAPHS EUTView1 EUTView2 ReferenceNo.:WTN24X02036602WPage3of11 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView3 EUTView4 ReferenceNo.:WTN24X02036602WPage4of11 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView5 EUTView6

ReferenceNo.:WTN24X02036602WPage1of11 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT1-PRODUCTLABELING ProposedFCCIDLabelFormat Specifications:Thelabelshallbesecurelyaffixedtoapermanentlyattachedpartofthedevice,inalocation whereitisvisibleoreasilyaccessibletotheuser,andshallnotbereadilydetachable.Thelabelshallbe sufficientlydurabletoremainfullylegibleandintactonthedeviceinallnormalconditionsofusethroughout thedevice’sexpectedlifetime. ProposedLabelLocationonEUT FCCIDLabel Location

1.RFExposureRequirements 1.1GeneralInformation ClientInformation Applicant:NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. Addressofapplicant:No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Manufacturer:NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. Addressofmanufacturer:No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China GeneralDescriptionofEUT: ProductName:DCTubularMotor TradeName:/ ModelNo.:DM25CE/S-1.1/28 AddingModel(s):/ RatedVoltage:DC12V PowerAdaptor:/ FCCID:VYY-DM25CES1128 EquipmentType:Mobiledevice TechnicalCharacteristicsofEUT: FrequencyRange:433.92MHz Max.FieldStrength:433.92MHz:81.72dBuV/m(3m) DataRate:/ Modulation:FSK AntennaType:LineAntenna AntennaGain:0dBi 1.2RFExposureExemption Accordingto§1.1307(b)(3)andKDB447498D04InterimGeneralRFExposureGuidancev01,system operatingundertheprovisionsofthissectionshallbeoperatinginamannerthatthepublicisnotexposedto radiofrequencyenergylevelinexcesslimitformaximumpermissibleexposure. OptionA:FCCRulePart1.1307(b)(3)(i)(A):Theavailablemaximumtime-averagedpowerisnomorethan 1mW,regardlessofseparationdistance. OptionB:FCCRulePart1.1307(b)(3)(i)(B):Theavailablemaximumtime-averagedpoweroreffective radiatedpower(ERP),whicheverisgreater,islessthanorequaltothethresholdP th (mW)describedinthe followingformula.P th isgivenby: OptionC:FCCRulePart1.1307(b)(3)(i)(C):Theminimumseparationdistance(Rinmeters)fromthebodyof anearbypersonforthefrequency(finMHz)atwhichthesourceoperates,theERP(watts)isnomorethanthe calculatedvalueprescribedforthatfrequency.Rmustbeatleastλ/2π,whereλisthefree-spaceoperating wavelengthinmeters. SingleRFSourcesSubjecttoRoutineEnvironmentalEvaluation RFSourcefrequency(MHz)ThresholdERP(watts) 0.3-1.341,920R 2 1.34-303,450R 2 /f 2 30-3003.83R 2 300-1,5000.0128R 2 f 1,500-100,00019.2R 2 ForMultipleRFsources:FCCRulePart1.1307(b)(3)(ii): (A)Theavailablemaximumtime-averagedpowerofeachsourceisnomorethan1mWandthereisa separationdistanceoftwocentimetersbetweenanyportionofaradiatingstructureoperatingandthe nearestportionofanyotherradiatingstructureinthesamedevice,exceptifthesumofmultiplesourcesis lessthan1mWduringthetime-averagingperiod,inwhichcasetheymaybetreatedasasinglesource (separationisnotrequired). (B)InthecaseoffixedRFsourcesoperatinginthesametime-averagingperiod,orofmultiplemobileor portableRFsourceswithinadeviceoperatinginthesametimeaveragingperiod,ifthesumofthe fractionalcontributionstotheapplicablethresholdsislessthanorequalto1asindicatedinthefollowing equation. 1.3CalculatedResult Radio Access Technology Prediction Frequency Max.Field Strength Antenna Gain Output Power Tune-Up Power ERP (MHz)(dBuV/m)(dBi)(dBm)(dBm)(dBm) SRD433.9281.720-13.54-13.00-15.15 Frequency Option Min.DistanceMax.PowerExposureLimit Ratio Result (MHz)(cm)(dBm)(mW)(mW)Pass/Fail 433.92B0.5-13.000.0523.170.01Pass Note:1.EIRP=E-104.8+20logD;OutputPower=EIRP-AntennaGain; ERP=EIRP-2.15dB 2.OptionA,BandCrefersasclause1.2. 3.ForoptionB,Max(time-averagedpower,effectiveradiatedpower(ERP))convertstoMax.Power. ForoptionC,ERPconvertstoMax.Power; 4.ForoptionB,P th (mW)convertstoExposureLimit(mW);ForoptionC,ERP(W)convertsto ExposureLimit(mW). 5.Ratio=Tune-UpERP(mW)/ExposureLimit(mW) ModeforSimultaneousMulti-bandTransmission: RadioAccess Technology Ratio1Ratio2Ratio3 Simultaneous Ratio Limit Result Pass/Fail /////// Result:Pass

WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 26 TESTREPORT ReferenceNo.......................:WTN24X02036602W FCCID....................................:VYY-DM25CES1128 Applicant...............................:NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. Address.................................:No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Manufacturer........................:ThesameasApplicant Address.................................:ThesameasApplicant ProductName......................:DCTubularMotor ModelNo...............................:DM25CE/S-1.1/28 Standards..............................:FCCPart15.231 DateofReceiptsample .....: 2024-02-28 DateofTest...........................:2024-02-29to2024-03-14 DateofIssue ........................: 2024-03-14 TestReportFormNo.......... : WTX_Part15_231W TestResult............................:Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbereproduced, exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithoutspecific stampoftestinstituteandthesignaturesofapprover. PreparedBy: WaltekTestingGroup(Shenzhen)Co.,Ltd. Address:1/F.,Room101,Building1,HongweiIndustrialPark,Liuxian2ndRoad, Block70Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+86-755-33663308Fax.:+86-755-33663309Email:[email protected] Testedby:Approvedby: GalaWangJasonSu ReferenceNo.:WTN24X02036602W WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 26 TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................4 1.1PRODUCTDESCRIPTIONFOREQUIPMENTUNDERTEST(EUT)........................................................................4 1.2TESTSTANDARDS.................................................................................................................................................5 1.3TESTMETHODOLOGY...........................................................................................................................................5 1.4TESTFACILITY.......................................................................................................................................................5 1.5EUTSETUPANDTESTMODE..............................................................................................................................6 1.6MEASUREMENTUNCERTAINTY.............................................................................................................................7 1.7TESTEQUIPMENTLISTANDDETAILS..................................................................................................................8 2.SUMMARYOFTESTRESULTS.........................................................................................................................11 3.ANTENNAREQUIREMENT.................................................................................................................................12 3.1STANDARDAPPLICABLE......................................................................................................................................12 3.2TESTRESULT......................................................................................................................................................12 4.RADIATEDEMISSIONS........................................................................................................................................13 4.1STANDARDAPPLICABLE......................................................................................................................................13 4.2TESTPROCEDURE..............................................................................................................................................14 4.3CORRECTEDAMPLITUDE&MARGINCALCULATION..........................................................................................15 4.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................15 5.20DBBANDWIDTH................................................................................................................................................18 5.1STANDARDAPPLICABLE......................................................................................................................................18 5.1TESTPROCEDURE..............................................................................................................................................18 5.2SUMMARYOFTESTRESULTS/PLOTS................................................................................................................18 6.TRANSMISSIONTIME..........................................................................................................................................19 6.1STANDARDAPPLICABLE......................................................................................................................................19 6.2TESTPROCEDURE..............................................................................................................................................19 6.3SUMMARYOFTESTRESULTS/PLOTS................................................................................................................19 7.DUTYCYCLE..........................................................................................................................................................21 7.1STANDARDAPPLICABLE......................................................................................................................................21 7.2TESTPROCEDURE..............................................................................................................................................21 7.3SUMMARYOFTESTRESULTS/PLOTS................................................................................................................21 8.COND…

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