VYYDM4559RMSFRadio Tubular Motor/Radio With Manual Tubular Motor

NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD.

Application Details

Equipment Class: DSC - Part 15 Security/Remote Control Transmitter
Date of Grant: Oct 01, 2025
Application Purpose: Original Equipment
Equipment Note: Radio Tubular Motor/Radio With Manual Tubular Motor
Frequency Range: 433.92000000 - 433.92000000
Company: NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD.
Country: China

Documents & Files

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,HEJIANG,China Date:2025-09-22 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA FCCID:VYYDM4559RMSF ApplicantFRN:0017345455 USAgent–AttestationStatement/Part2.911(d)(7) NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthat,asof 2025-09-22,wehavedesignatedFCCUSAgent,LLCtoacceptserviceofprocessonour behalfforFCCID:VYYDM4559RMSF. NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.,acceptsto maintainanagentofserviceofprocessintheUnitedStatesfornolessthanoneyearafter eitherthegranteehaspermanentlyterminatedallmarketingandimportationoftheapplicable equipmentwithintheU.S.,ortheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. FCCUSAgent,LLC,acceptsasofthedateofthefilingofthisapplication,theobligationof beingthedesignatedagentforthepurposeofacceptingserviceofprocessonbehalfof NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.forFCCID: VYYDM4559RMSF. 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:xiaofangLiaoDesignatedAgentRepresentative:TimPayne Signature: Signature:

Attestation Statements

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO., LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2025-09-22 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:VYYDM4559RMSF ToWhomItMayConcern: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD.certifiesthattheequipmentfor whichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886 andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, Signatory [xiaofangLiao,MANAGER]

Cover Letter(s)

NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO.,LTD. No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,ZHEJIANG,China Date:2025-09-22 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:VYYDM4559RMSF ConfidentialityRequest Towhomitmayconcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,wearerequestingthe Commissiontowithholdthefollowingattachment(s)asconfidentialdocumentsfrompublicdisclosureindefinitely. ☒ BlockDiagram ☐ Tune-UpInformation ☒ OperationalDescription,SBOM ☐ 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]

ID Label/Location Info

ReferenceNo.:WTN25X08217006WPage1of14 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT1-PRODUCTLABELING ProposedFCCIDLabelFormat ReferenceNo.:WTN25X08217006WPage2of14 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ReferenceNo.:WTN25X08217006WPage3of14 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn Specifications:Thelabelshallbesecurelyaffixedtoapermanentlyattachedpartofthedevice,inalocation whereitisvisibleoreasilyaccessibletotheuser,andshallnotbereadilydetachable.Thelabelshallbe sufficientlydurabletoremainfullylegibleandintactonthedeviceinallnormalconditionsofusethroughout thedevice’sexpectedlifetime. ProposedLabelLocationonEUT FCCIDLabel Location

RF Exposure Info

1.RFExposureRequirements 1.1GeneralInformation ClientInformation Applicant: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO., LTD. Addressofapplicant:No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,HEJIANG,China Manufacturer: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO., LTD. Addressofmanufacturer:No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,HEJIANG,China GeneralDescriptionofEUT: ProductName:RadioTubularMotor/RadioWithManualTubularMotor TradeName:/ ModelNo.:DM45RM/SF-50/13 AddingModel(s): DM45R/SF-10/19,DM45R/SF-10/32,DM45R/SF-15/32, DM45R/SF-20/19,DM45R/SF-20/32,DM45R/SF-30/13, DM45R/SF-40/13,DM45R/SF-50/13,DM59R/SF-100/11, DM59R/SF-120/9,DM45RM/SF-10/19,DM45RM/SF-10/32, DM45RM/SF-15/32,DM45RM/SF-20/19,DM45RM/SF-20/32, DM45RM/SF-30/13,DM45RM/SF-40/13,DM59RM/SF-100/11, DM59RM/SF-120/9 RatedVoltage:AC120V PowerAdaptor:/ FCCID:VYYDM4559RMSF EquipmentType:Mobiledevice TechnicalCharacteristicsofEUT: FrequencyRange:433.92MHz Max.FieldStrength:433.92MHz:81.71dBuV/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) SRD433.9281.710-13.55 -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

Test Report

WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 31 TESTREPORT ReferenceNo.......................:WTN25X08217006W FCCID....................................:VYYDM4559RMSF Applicant...............................: NINGBODOOYAMECHANIC&ELECTRONICTECHNOLOGYCO., LTD. Address.................................: No.168ShengguangRoad,Luotuo,Zhenhai,Ningbo,HEJIANG,China Manufacturer........................:ThesameasApplicant Address.................................:ThesameasApplicant ProductName......................:RadioTubularMotor/RadioWithManualTubularMotor ModelNo...............................:DM45RM/SF-50/13 Standards..............................:FCCPart15.231 DateofReceiptsample .....: 2025-08-13 DateofTest...........................:2025-08-13to2025-09-01 DateofIssue ........................: 2025-09-01 TestReportFormNo.......... : WTX_Part15_231W TestResult............................:Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced,exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithout specificstampoftestinstituteandthesignaturesofapprover. 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: GalaWang/ProjectEngineerJasonSu/Manager ReferenceNo.:WTN25X08217006W WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 31 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.........................................................................................................................12 3.ANTENNAREQUIREMENT.................................................................................................................................13 3.1STANDARDAPPLICABLE......................................................................................................................................13 3.2TESTRESULT......................................................................................................................................................13 4.RADIATEDEMISSIONS........................................................................................................................................14 4.1STANDARDAPPLICABLE......................................................................................................................................14 4.2TESTPROCEDURE..............................................................................................................................................15 4.3CORRECTEDAMPLITUDE&MARGINCALCULATION..........................................................................................16 4.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................16 5.20DBBANDWIDTH................................................................................................................................................21 5.1STANDARDAPPLICABLE......................................................................................................................................21 5.1TESTPROCEDURE..............................................................................................................................................21 5.2SUMMARYOFTESTRESULTS/PLOTS................................................................................................................21 6.TRANSMISSIONTIME..........................................................................................................................................23 6.1STANDARDAPPLICABLE......................................................................................................................................23 6.2TESTPROCEDURE..............................................................................................................................................23 6.3SUMMARYOFTESTRESULTS/PLOTS................................................................................................................23 7.DUTYCYCLE..........................................................................................................................................................25 7.1STANDARDAPPLICABLE......................................................................................................................................25 7.2TESTPROCEDURE..............................................................................................................................................25 7.3SUMMARYOFTESTRESULTS/PLOTS..................................................................…

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Test Report

Contact Information

Applicant

xiaofang Liao(MANAGER)

[email protected]Fax: 86-574-86580685

Test Firm

Waltek Testing Group (Shenzhen) Co., Ltd.Jandy So

[email protected]Fax: 86-755-33663309

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15.231	433.92 MHz - 433.92 MHz	-

Confidentiality

Long Term

Grant Notes

This device must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures, or as evaluated in this filing. Device meets SAR Exemption at 5mm for Portable use.