2AZ2O-FK310GWT-U WIRELESS FLASH TRIGGER

1 2 3 4 5 6 7 8 9 1. Product Structure 1. Power Switch 2. 2.4G Indicating Lamp 3. Channel Selection Button 4. Test Button 5. Battery Compartment 6. Hot-shoe Contact 7. Lock Ring 8. Hot-shoe 9. Sync Socket WT-U Flash Trigger User Manual Note: The flash will be triggered only when the flash and trigger are in same channel. 3. 2.4G Channel Instruction 4. Specification: Model: WT-U Channel: 15 channels Net Weight: 38g Transmission Distance: 50 m Wireless Frequency: 2.4G Power Source: 23A 12V alkaline battery 2. Instruction 1. Install the battery in the trigger. Remove the battery cover, make sure the battery positive and negative polarity is correctly inserted in the battery compartment, then close the battery compartment. 2. Set the hot shoe of flash trigger WT-U on the cam- era's hot shoe, switch the trigger power on, press the selection button of trigger and then set same channel as the flash, press the test button on the trigger to trigger the flash. 3. If the camera does not have hot shoe, use the Sync ca- ble to connect the trigger and camera. One side connecting the sync socket of trigger, another side connecting the PC socket of camera. Press the shutter button of camera to trigger the flash. ● Specifications and design are subject to change without notice. Thank you for purchasing this product Before use, please read this user manual carefully in order to ensure your safety. Keep it properly for refere- nce in future. FederalCommunicationsCommission(FCC)Statement.Thisdevicecomplieswithpart15ofthe FCCRules.Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation.Note:Thisequipmenthasbeen testedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15ofthe FCCRules.TheselimitsaredesignedtoprovideReasonableprotectionagainstharmful interferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradio frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycause harmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterference willnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferenceto radioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: •Reorientorrelocatethereceivingantenna. •Increasetheseparationbetweentheequipmentandreceiver. •Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. •Consultthedealeroranexperiencedradio/TVtechnicianforhelp. Warning:ChangesormodificationsmadetothisdevicenotexpresslyapprovedbyShenzhen LepowerElectronicCo.,Ltd.mayvoidtheFCCauthorizationtooperatethisdevice.Note:The manufacturerisnotresponsibleforanyradioorTVinterferencecausedbyunauthorized modificationstothisequipment.Suchmodificationscouldvoidtheuser’sauthoritytooperate theequipment. RFexposurestatement: ThedevicecomplianceRFexposurerequirementandcaninstalledandusedwithout restriction

FCCID:2AZ2O-FK310GPage 1 of 2 ReportNo.:CTL2203023091-WF ExternalPhotosofEUT FCCID:2AZ2O-FK310GPage 2 of 2 ReportNo.:CTL2203023091-WF

FCCID:2AZ2O-FK310GPage 1 of 1 ReportNo.:CTL2203023091-WF FCCIDLabelInformation Labellocation: FCCID:2AZ2O-FK310G

FCCID:2AZ2O-FK310GPage 1 of 2 ReportNo.:CTL2203023091-WF InternalPhotosofEUT Antenna FCCID:2AZ2O-FK310GPage 2 of 2 ReportNo.:CTL2203023091-WF

version01 ShenzhenLepowerElectronicCo.,Ltd. 3/F,BuildingC,ShenliIndustrialPark,HuaqingAvenue,QinghuaCommunity,LonghuaStreet,Longhua District,Shenzhencity,GuangdongProvince,China Tel:15815526007Fax:15815526007 DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:FK310G,FK300G FCCID:2AZ2O-FK310G fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforPCBantennatype(s)described below: ModelNo.ofantenna:N/A Typeofantenna: PCBAntenna Gainoftheantenna:0.0dBi Frequencyrange:2402.5MHz~2475MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:ShenzhenLepowerElectronicCo.,Ltd. Address:3/F,BuildingC,ShenliIndustrialPark,HuaqingAvenue,QinghuaCommunity,LonghuaStreet, LonghuaDistrict,Shenzhencity,GuangdongProvince,China City:Shenzhen ZIP/Postalcode: Country:China Place:MuskZhangDate:2022-04-26 Signature:

FCC-ID:2AZ2O-FK310GPage 1 of 1 ReportNo.:CTL2203023091-WF RFExposureLetter Accordingto447498D01GeneralRFExposureGuidancev06The1 ‐ gand10 ‐ g SARtest exclusionthresholdsfor100MHzto6GHzattestseparationdistances ≤ 50mm aredeterminedby:[(max.powerofchannel,includingtune ‐ uptolerance,mW)/(min. testseparationdistance,mm)] · [ √ f(GHz)] ≤ 3.0for1 ‐ gSARand ≤ 7.5for10 ‐ gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison 2.4G: d=3m EIRP(dBm)=E(dB μ V/m)-95.3 mW=10[dBm/10] pt=104.85dBuV/m=9.55dBm=9.02mWat2402.5MHz So(9.02mW/5mm)x √ 2.4025GHz=2.7949<3 ThenSARevaluationisnotrequired

ShenzhenCTLTestingTechnologyCo.,Ltd. Tel:+86-755-89486194E-mail:[email protected] TESTREPORT FORFCCPART15SUBPARTC15.249 ReportReferenceNo. .................... :CTL2203023091-WF Compiledby: (position+printedname+signature) HappyGuo (Fileadministrators) Testedby: (position+printedname+signature) GaryGao (TestEngineer) Approvedby: (position+printedname+signature) IvanXie (Manager) ProductName ................................. : WT-UWIRELESSFLASHTRIGGER Model/Typereference .................... :FK310G ListModel(s)....................................:FK300G TradeMark.......................................: FCCID...............................................: 2AZ2O-FK310G Applicant’sname ........................... : ShenzhenLepowerElectronicCo.,Ltd. Addressofapplicant.....................: 3/F,BuildingC,ShenliIndustrialPark,HuaqingAvenue,Qinghua Community,LonghuaStreet,LonghuaDistrict,Shenzhencity, GuangdongProvince,China TestFirm ........................................... :ShenzhenCTLTestingTechnologyCo.,Ltd. AddressofTestFirm ..................... : Floor1-A,BaishaTechnologyPark,No.3011,ShahexiRoad, NanshanDistrict,Shenzhen,China518055 Testspecification ........................... : Standard............................................:FCCPart15.249:Operationwithinthebands920-928MHz, 2400-2483.5MHz,5725-5850MHzand24.0-24.25GHz. TRFOriginator .................................. : ShenzhenCTLTestingTechnologyCo.,Ltd. MasterTRF.......................................:Dated2011-01 Dateofreceiptoftestitem..........: Mar.03,2022 DateofTestDate ............................ : Mar.03,2022-Apr.15,2022 DataofIssue....................................: Apr.18,2022 Result ................................................ : Pass ShenzhenCTLTestingTechnologyCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenCTLTestingTechnologyCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenCTLTestingTechnologyCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. V1.0Page2of27ReportNo.:CTL2203023091-WF TESTREPORT TestReportNo.:CTL2203023091-WF Apr.18,2022 Dateofissue EquipmentunderTest: WT-UWIRELESSFLASHTRIGGER SampleNo.: CTL220302309-1-S001 Model/Type: FK310G ListedModels: FK300G Applicant:ShenzhenLepowerElectronicCo.,Ltd. Address: 3/F,BuildingC,ShenliIndustrialPark,Huaqing Avenue,QinghuaCommunity,LonghuaStreet, LonghuaDistrict,Shenzhencity,GuangdongProvince, China Manufacturer:ShenzhenLepowerElectronicCo.,Ltd. Address: 3/F,BuildingC,ShenliIndustrialPark,Huaqing Avenue,QinghuaCommunity,LonghuaStreet, LonghuaDistrict,Shenzhencity,GuangdongProvince, China TestresultPass* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedpage5. Thedevice(ProductName:WT-UWIRELESSFLASHTRIGGER)ModelsName:FK310G, FK300Ghavesameelectrical,PCBandBOM,onlythecolourandmodel’snamesaredifferentfor marketingrequirements. Thetestresultspresentedinthisreportrelateonlytotheobjecttested. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovaloftheissuing testinglaboratory. V1.0Page3of27ReportNo.:CTL2203023091-WF **ModifiedHistory** RevisionDescriptionIssuedDataReportNo.Remark Version1.0InitialTestReportRelease2022-04-18CTL2203023091-WFTracyQi V1.0Page4of27ReportNo.:CTL2203023091-WF TableofContentsPage 1.SUMMARY ......................................................................................................................................................................... 5 1.1.TESTSTANDARDS ..................................................................................................................................................... 5 1.2.TESTDESCRIPTION ........................................................................................................................................................ 5 1.3.TESTFACILITY ............................................................................................................................................................... 6 1.4.STATEMENTOFTHEMEASUREMENTUNCERTAINTY .............................................................................................................. 6 2.GENERALINFORMATION ................................................................................................................................................... 7 2.1.ENVIRONMENTALCONDITIONS ........................................................................................................................................ 7 2.2.GENERALDESCRIPTIONOFEUT ...................................................................................................................................... 7 2.3.DESCRIPTIONOFTESTMODESANDTESTFREQUENCY ........................................................................................................ 7 2.4.EQUIPMENTSUSEDDURINGTHETEST .............................................................................................................................. 9 2.5.RELATEDSUBMITTAL(S)/GRANT(S) ................................................................................................................................ 9 2.6.MODIFICATIONS ............................................................................................................................................................ 9 3.TESTCONDITIONSANDRESULTS ..................................................................................................................................... 10 3.1.CONDUCTEDEMISSIONSTEST ....................................................................................................................................... 10 3.2.RADIATEDEMISSIONSANDBANDEDGE ......................................................................................................................... 12 3.3.OCCUPIEDBANDWIDTHMEASUREMENT .......................................................…

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FCCID:2AZ2O-FK310GPage 1 of 1 ReportNo.:CTL2203023091-WF TestSetupPhotosoftheEUT