2BCTX-S3Bone conduction Bluetooth earphones

FCC Statement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has evaluated to meet general RF exposure requirement. The device can be used be in portable exposure without restriction.

SHENZHENYUZHENTECHNOLOGYCO.LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:10-23-2023 FCCID:2BCTX-S3 Ref.#1:AttestationStatementsPart2.911(d)(5)(i)Filing SHENZHENYUZHENTECHNOLOGYCO.LTDcertifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ref.#2:AttestationStatementsPart2.911(d)(5)(ii)Filing SHENZHENYUZHENTECHNOLOGYCO.LTD certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredListasanentityproducing “covered”equipment. Applicant:SHENZHENYUZHENTECHNOLOGYCO.LTD Address:6A,No.72,SecondLane,DazhonggangRoad,ShaqiCommunity,XinqiaoStreet, Bao'anDistrict,Shenzhen ContactPerson:LiangfuLiu Tel.:Manager Email:[email protected] Sincerely, Signature:

SHENZHENYUZHENTECHNOLOGYCO.LTD Address ： 6A,No.72,SecondLane,DazhonggangRoad,ShaqiCommunity,XinqiaoStreet, Bao'anDistrict,Shenzhen Date:2023-10-23 FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2BCTX-S3，FRN:0034227207 SHENZHENYUZHENTECHNOLOGYCO.LTDcertifiesthat,asofthedateofthefilingofthe application,UAINTERNATIONALINC.isourdesignatedU.S.agentforserviceofprocessfor theabovereferencedFCCID.SHENZHENYUZHENTECHNOLOGYCO.LTDacceptsto maintainanagentfornolessthanoneyearafterthegranteehasterminatedallmarketing andimportationortheconclusionofanyCommission-relatedproceedinginvolvingthe equipment. UAINTERNATIONALINC.accepts,asofthedateofthefilingoftheapplication,theobligation ofthedesignatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:UAINTERNATIONALINC. Address:5030BoardwalkDrSuite818ColoradoSprings,COLORADO80919,USA FRN:0033510736 ContactPerson:JessicaZhong Tel.:001-719-6787182 Email:[email protected] Sincerely, SignedonbehalfofSignedonbehalfof SHENZHENYUZHENTECHNOLOGYCO.LTD UAINTERNATIONALINC. Name: LiangfuLiu Name:JessicaZhong Title:Manager Title:Manager Signature:Signature: Date:2023-10-23Date:2023-10-23

Manufactrer:ShenzhenYongchengInternationalTechnologyCo.,LTD Address:Room611,BuildingF,YuxingScienceandTechnologyIndustrialPark,Baoan District,Shenzhen,Guangdong 2.4GHz2012ChipAntenna:RF201221 _ eturnLoss 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm Unit:mm ElectricalCharacteristics ReturnLoss&Radiation R Trc2dBMag10dB/Ref0dBInvisible1 Trc3dBMag10dB/Ref0dBCalintOffs Frequency S11(dB) (MHz) 2400-10.78 2442-24.81 2484-10.24 S11 M1 M2 2.4000 2.4420 00GHz 00GHz -10.77 -24.81 6dB 2dB 41 31 21 11 0 M32.484000GHz-10.243dB M 1 M3 -9 -19 M2 -29 -39 Ch1Start2GHzPwr0dBmStop3GHz Radiation TF 2.4GHz2012ChipAntenna:RF201221 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEA ψ B ψ C ψ D W ψ M 20127”5K/Reel2.0±0.513.5±1.021±1.060±1.011.5±2.0178±2.0 TappingSpecification PackagingTypeABWEFGHTψDP PaperType32161.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz2012ChipAntenna:RF201221 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10 °C /1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30 °C to+85 °C ;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30 °C to+85 °C ),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85 °C . 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30 °C . 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz2012ChipAntenna:RF201221 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12015/8/20Newissue 22017/4/20Updatedetaildimensiononantennalayout 32018/3/1Partnumberandcodingruleupdated

SHENZHENYUZHENTECHNOLOGYCO.LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:October23,2023 Subject;RequestforConfidentiality FCCID:2BCTX-S3 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure 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: LiangfuLiu Title: Manager

SHENZHENYUZHENTECHNOLOGYCO.LTD Date : 2023/10/23 ProductModelNumber: S3 , EP410 FCC ID :2BCTX-S3 To whomit may concern, Re: ProductCertificationRepresentativeAuthorizationLetter We authorizeQAI LaboratoriesLtd. 3980 North FraserWay, BurnabyB.C. CanadaV5J 5K5 to act on our behalfon all mattersconcerningthe abovenamedequipment. This shall includethe following: Testing Approvalapplicationsand procedures We declare that ORGANIZATION.is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Title:LiangfuLiu Email:[email protected] Telephone:13760213275 On behalfof:LiangfuLiu

SHENZHENYUZHENTECHNOLOGYCO.LTD ModelDifferent Modelname：BoneconductionBluetoothearphones FCCID:2BCTX-S3 Modelnumber:S3,EP410 Allmodel’sthefunction,softwareandelectriccircuitarethesame,exceptthemodelnumber. Name:LiangfuLiu Date:2023-10-23 Title:Manager Signatureofapplicant:

ExternalPhotos

Lable: FCCID:2BCTX-S3 Input:DC5V/1A

InternalPhotos BTANT

FCCID:2BCTX-S3 RFExposureEvaluation AccordingtoKDB447498V06andpart2.1093，Unlessspecificallyrequiredbythe publishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremity SARevaluationforgeneralpopulationexposureconditions,bymeasurementornumerical simulation,isnotrequiredwhenthecorrespondingSARTestExclusionThreshold condition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, SoaSARtestisnotrequired ModeFreque ncy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Maxtune uppower tolerance (dBm) Max Power (mW) Min. Distanc e (mm) Calc. threshol ds limit GFSK 2402 -2.698 -3±1-2 0.63105.000.1956 3.0 2441 -2.882 -3±1 -2 0.63105.000.1972 3.0 2480 -3.036 -3 ± 1 -2 0.63105.000.1987 3.0 Π/4-DQ PSK 2402 -1.853 -2±1 -1 0.79435.000.2462 3.0 2441 -1.972 -2 ± 1 -1 0.79435.000.2482 3.0 2480 -2.155 -2±1 -1 0.79435.000.2502 3.0 8DPSK 2402 -1.223 -1 ± 1 0 1.00005.000.3100 3.0 2441 -1.467 -1±1 0 1.00005.000.3125 3.0 2480 -1.646 -1 ± 1 0 1.00005.000.3150 3.0

Page 1 of 71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn FCCTESTREPORT FCCID:2BCTX-S3 Product:BoneconductionBluetoothearphones ModelName:S3,EP410 Brand:N/A ReportNo.:NCT23037081E Preparedfor SHENZHENYUZHENTECHNOLOGYCO.LTD 6A,No.72,SecondLane,DazhonggangRoad,ShaqiCommunity,XinqiaoStreet, Bao'anDistrict,Shenzhen Preparedby ShenzhenNCTTestingTechnologyCo.,Ltd. A101&2FB2,Fuqiao6thArea,XintianCommunity,FuhaiStreet,BaoanDistrict, Shenzhen,People’sRepublicofChina TEL:400-8868-419 FAX:86-755-27790922 ReportNo.:NCT23037081E Page 2 of 71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 1TESTRESULTCERTIFICATION Applicant’sname: SHENZHENYUZHENTECHNOLOGYCO.LTD Address: 6A,No.72,SecondLane,DazhonggangRoad,ShaqiCommunity, XinqiaoStreet,Bao'anDistrict,Shenzhen Manufacture'sname : Shenzhengotekacousticco.,ltd Address : 101,201,301,401,18factoriesand3buildings，TheThirdIndustrial Zone,TianliaoCommunity,YutangStreet,GuangmingDistrict, Shenzhen Productname : BoneconductionBluetoothearphones Modelname : S3 Additionalmodel : EP410 Standards :FCCCFR47Part15Section15.247 Testprocedure :ANSIC63.10:2013 TestDate:Sep.06,2023toSep.13,2023 DateofIssue:Sep.13,2023 TestResult :Pass ThisdevicedescribedabovehasbeentestedbyNCT,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofNCT,this documentmaybealteredorrevisedbyNCT,personalonly,andshallbenotedintherevision ofthedocument. TestEngineer: KevenWu/Engineer TechnicalManager: HenryWang/Manager ReportNo.:NCT23037081E Page 3 of 71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn Contents Page 1TESTRESULTCERTIFICATION...............................................................................................................................2 2TESTSUMMARY..........................................................................................................................................................5 3TESTFACILITY.............................................................................................................................................................6 4GENERALINFORMATION..........................................................................................................................................7 4.1GENERALDESCRIPTIONOFE.U.T.....................................................................................................................7 4.2CHANNELLIST.....................................................................................................................................................8 4.3TESTSETUPCONFIGURATION............................................................................................................................9 4.4TESTMODE.........................................................................................................................................................9 5EQUIPMENTDURINGTEST....................................................................................................................................10 5.1EQUIPMENTSLIST.............................................................................................................................................10 5.2MEASUREMENTUNCERTAINTY.........................................................................................................................12 5.3DESCRIPTIONOFSUPPORTUNITS...................................................................................................................12 6CONDUCTEDEMISSION..........................................................................................................................................13 6.1E.U.T.OPERATION............................................................................................................................................13 6.2EUTSETUP.......................................................................................................................................................13 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).................................................................................14 6.4MEASUREMENTPROCEDURE:...........................................................................................................................14 6.5CONDUCTEDEMISSIONLIMIT...........................................................................................................................14 6.6MEASUREMENTDESCRIPTION..........................................................................................................................14 6.7CONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 7RADIATEDSPURIOUSEMISSIONS......................................................................................................................17 7.1EUTOPERATION...............................................................................................................................................17 7.2TESTSETUP......................................................................................................................................................18 7.3SPECTRUMANALYZERSETUP..........................................................................................................................19 7.4TESTPROCEDURE.............................................................................................................................................20 7.5SUMMARYOFTESTRESULTS...........................................................................................................................21 8MAXIMUMPEAKOUTPUTPOWERTEST............................................................................................................30 8.1TESTSTANDARDANDLIMIT..............................................................…

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ReportNo.:NCT23037081E Page51of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 12DwellTimeTest 12.1TestStandardandLimit TestStandardFCCPart15CSection15.247(a)(1) TestLimit 0.4sec 12.2TestSetup 12.3TestProcedure TheEUTmusthaveitshoppingfunctionenabled.Usethefollowingspectrumanalyzersettings: 1.Span=zerospan,centeredonahoppingchannel 2.SettheRBW=1MHz. 3.SettheVBW=1MHz. 4.Sweeptime=asnecessarytocapturetheentiredwelltimeperhoppingchannel. 5.Detectorfunction=peak. 6.Tracemode=maxhold. 7.Allowtracetofullystabilize. ReportNo.:NCT23037081E Page52of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 12.4TestData Package Type Pulsewidth (ms) Timeslotlength(ms) Dwelltime (ms) Limit(s)Remark DH10.378timeslotlength*1600/2/79*31.6120.960.4Pass 2DH10.387timeslotlength*1600/4/79*31.6123.840.4Pass 3DH10.388timeslotlength*1600/6/79*31.6124.160.4Pass DH31.633timeslotlength*1600/2/79*31.6261.280.4Pass 2DH31.639timeslotlength*1600/4/79*31.6262.240.4Pass 3DH31.639timeslotlength*1600/6/79*31.6262.240.4Pass DH52.881timeslotlength*1600/2/79*31.6307.310.4Pass 2DH52.887timeslotlength*1600/4/79*31.6307.950.4Pass 3DH52.889timeslotlength*1600/6/79*31.6308.160.4Pass TestPlots DH12441MHz ReportNo.:NCT23037081E Page53of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 2DH12441MHz 3DH12441MHz ReportNo.:NCT23037081E Page54of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn DH32441MHz 2DH32441MHz ReportNo.:NCT23037081E Page55of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 3DH32441MHz DH52441MHz ReportNo.:NCT23037081E Page56of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 2DH52441MHz 3DH52441MHz ReportNo.:NCT23037081E Page57of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 13100kHzBandwidthofFrequencyBandEdgeRequirement 13.1TestStandardandLimit TestStandard FCCPart15CSection15.247(d) TestLimit inany100kHzbandwidthoutsidethefrequencybandsinwhichthe spreadspectrumintentionalradiatorinoperating,theradiofrequency powerthatisproducedbytheintentionalradiatorshallbeatleast20dB belowthatinthe100kHzbandwidthwithinthebandthatcontainsthe highestlevelofthedesiredpower,Inaddition,radiatedemissionswhich fallintherestrictedbands,asdefinedin§15.205(a),mustalsocomply withtheradiatedemissionlimitsspecifiedin15.209(a). 13.2TestSetup 13.3TestProcedure TheEUTmusthaveitshopping/Non-hoppingfunctionenabled.Usingthefollowingspectrum analyzersetting: 1.SettheRBW=100kHz. 2.SettheVBW=300kHz. 3.Sweeptime=autocouple. 4.Detectorfunction=peak. 5.Tracemode=maxhold. 6.Allowtracetofullystabilize. ReportNo.:NCT23037081E Page58of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 13.4TestData GFSKmode: Lowestchannel ReportNo.:NCT23037081E Page59of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn Middlechannel Highestchannel ReportNo.:NCT23037081E Page60of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn π/4-DQPSKmode: Lowestchannel Middlechannel ReportNo.:NCT23037081E Page61of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn Highestchannel ReportNo.:NCT23037081E Page62of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 8-DPSKmode: Lowestchannel Middlechannel ReportNo.:NCT23037081E Page63of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn Highestchannel ReportNo.:NCT23037081E Page64of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn GFSKNo-hoppingBandedge-leftside GFSKHoppingBandedge-leftside ReportNo.:NCT23037081E Page65of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn GFSKNo-hoppingBandedge-rightside GFSKHoppingBandedge-rightside ReportNo.:NCT23037081E Page66of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn π/4-DQPSKNo-hoppingBandedge-leftside π/4-DQPSKHoppingBandedge-leftside ReportNo.:NCT23037081E Page67of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn π/4-DQPSKNo-hoppingBandedge-rightside π/4-DQPSKHoppingBandedge-rightside ReportNo.:NCT23037081E Page68of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 8-DPSKNo-hoppingBandedge-leftside 8-DPSKHoppingBandedge-leftside ReportNo.:NCT23037081E Page69of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 8-DPSKNo-hoppingBandedge-rightside 8-DPSKHoppingBandedge-rightside ReportNo.:NCT23037081E Page70of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 14AntennaRequirement 14.1TestStandardandRequirement TestStandard FCCPart15Section15.203/247(c) Requirement 1)15.203requirement: Anintentionalradiatorshallbedesignedtoensurethatnoantennaotherthan thatfurnishedbytheresponsiblepartyshallbeusedwiththedevice.The useofapermanentlyattachedantennaorofanantennathatusesaunique couplingtotheintentionalradiator,themanufacturermaydesigntheunitso thatabrokenantennacanbereplacedbytheuser,buttheuseofastandard antennajackorelectricalconnectorisprohibited. 2)15.247(c)(1)(i)requirement: Systemsoperatinginthe2400-2483.5MHzbandthatisusedexclusivelyfor fixed.Point-to-pointoperationsmayemploytransmittingantennaswith directionalgaingreaterthan6dBiprovidedthemaximumconductedoutput poweroftheintentionalradiatorisreducedby1dBforevery3dBthatthe directionalgainoftheantennaexceeds6dBi. 14.2AntennaConnectedConstruction TheantennaisChipAntennawhichpermanentlyattached,andtheMax.gainoftheantennais 1.06dBi.Itcomplieswiththestandardrequirement. ReportNo.:NCT23037081E Page71of71 Hotline:400-8868-419Fax:86-755-27790922http://www.ncttesting.cn 15TESTSETUP&EUTPHOTOGRAPH Pleaseseetheattachmentfordetails. ----------------EndofReport---------------