A4E-E108Audio Leg-Boost

FCCRequirement Anychangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecould voidtheuser ’ sauthoritytooperatetheequipment. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. Note:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice, pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotection againstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,uses,andcan radiateradiofrequencyenergy,andifnotinstalledandusedinaccordancewiththeinstructions, maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethat interferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmful interferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoff andon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: –Reorientorrelocatethereceivingantenna. –Increasetheseparationbetweentheequipmentandreceiver. –Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. –Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

eMoMo Technology Co., Ltd Model Confirmation Letter We, (eMoMo Technology Co., Ltd) certify the product: Audio Leg-Boost Model No.: E108V, E108 Their electrical circuit design, layout, components used and internal wiring are identical,Only the model is different. Signiture: Grantee Contact: Rosary Tang Company Name: eMoMo Technology Co., Ltd Date:2022-3-25

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Authorization v02 Page 1 of 1 eMoMo Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022-3-25 SUBJECT: FCC Application for (FCC ID:A4E-E108) To Whom It May Concern: We, the undersigned, hereby authorize Yoyo Zhou in Shenzhen Huaxia Testing Technology Co., Ltd at 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen Huaxia Testing Technology Co., Ltd on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, (Must be signed by the person that is listed on the FCC Website) Signature: Contact name: Rosary Tang Company name: eMoMo Technology Co., Ltd Address: Fourth Floor, Yonghe Building, Taiwan Industrial P Shiyan, Baoan, Shenzhen,Guangdong,China

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Confidentiality v02 Page 1 of 1 eMoMo Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: A4E-E108 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name 1. Block Diagram, 2. Schematics, 3. Operational Description 1. A4E-E108 -Block diagram 2. A4E-E108 -SCH 3.A4E-E108 -Operational description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for an initial period of xxxx (ie- “45”, “90” or “180”) days: Exhibit Type File Name N/A N/A Signature: Contact name: Rosary Tang Company name: eMoMo Technology Co., Ltd Address: Fourth Floor, Yonghe Building, Taiwan Industrial P Shiyan, Baoan, Shenzhen,Guangdong,China

FCCID:A4E-E108 Externalphotos FCCID:A4E-E108 FCCID:A4E-E108

Label E108标签 消银龙 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. 文本款 E108V标签 消银龙 L45*W25mm L45*W25mm 文本款 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. Model: E108V Input:15V 2.4A Output Power: 5W*2+15W FCC ID:A4E-E108 Designed by eMoMo Tech Audio Leg 45mm 25mm 3.3mm 3.3mm Model: E108 Input:12V 2A Output Power: 8W*2 FCC ID:A4E-E108 Designed by eMoMo Tech Audio Leg 45mm 25mm 3.3mm 3.3mm

FCCID:A4E-E108 Internalphotos FCCID:A4E-E108

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.:CQASZ20211001820E-03 Applicant:eMoMoTechnologyCo.,Ltd AddressofApplicant:FourthFloor,YongheBuilding,TaiwanIndustrialPShiyan,Baoan,Shenzhen, Guangdong,China EquipmentUnderTest(EUT): EUTName:AudioLeg-Boost TestModelNo.:E108V,E108 ModelNo.:E108V BrandName:eMoMo FCCID:A4E-E108 Standards: 47CFRPart1.1307 47CFRPart2.1093 KDB447498D01GeneralRFExposureGuidancev06 DateofReceipt:2021-10-25 DateofTest: 2021-10-25to2021-12-30 DateofIssue:2022-03-25 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove TestedBy: (LewisZhou) ReviewedBy: (RockHuang) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:2of8 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20211001820E-03Rev.01 Initialreport 2022-03-25 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:3of8 2Contents Page 1VERSION.............................................................................................................................................................................2 2CONTENTS.........................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION....................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT....................................................................................................................................4 3.3GENERALDESCRIPTIONOFBT&BLE............................................................................................................................4 4SAREVALUATION...........................................................................................................................................................6 4.1RFEXPOSURECOMPLIANCEREQUIREMENT..................................................................................................................6 4.1.1StandardRequirement......................................................................................................................................6 4.1.2Limits....................................................................................................................................................................6 4.1.3EUTRFExposure..............................................................................................................................................7 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:4of8 3GeneralInformation 3.1ClientInformation Applicant: eMoMoTechnologyCo.,Ltd AddressofApplicant: FourthFloor,YongheBuilding,TaiwanIndustrialPShiyan,Baoan,Shenzhen, Guangdong,China Manufacturer: eMoMoTechnologyCo.,Ltd AddressofManufacturer: FourthFloor,YongheBuilding,TaiwanIndustrialPShiyan,Baoan,Shenzhen, Guangdong,China Factory: eMoMoTechnologyCo.,Ltd AddressofFactory: FourthFloor,YongheBuilding,TaiwanIndustrialPShiyan,Baoan,Shenzhen, Guangdong,China 3.2GeneralDescriptionofEUT ProductName: AudioLeg-Boost ModelNo.: E108V,E108 TestModelNo E108V TradeMark: eMoMo EUTSupportsRadios application: Bluetoothmode 2402-2480MHz SoftwareVersion:V01 HardwareVersion: V01 SampleType: MobilePortableFixLocation EUTPowerSupply: DC15V2.4A 3.3GeneralDescriptionofBT OperationFrequency: 2402MHz~2480MHz BluetoothVersion: V5.0 ModulationTechnique: FrequencyHoppingSpreadSpectrum(FHSS) ModulationType: GFSK,π/4DQPSK,8DPSK NumberofChannel: 79 TransferRate:1Mbps/2Mbps/3Mbps TestSoftwareofEUT: FCCAssist1.0.2.2 AntennaType:PCBantenna AntennaGain:0dBi 3.4GeneralDescriptionofBLE OperationFrequency:2402MHz~2480MHz ModulationType:GFSK TransferRate:1Mbps TestSoftwareofEUT: FCCAssist1.0.2.2 NumberofChannel:40 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:5of8 AntennaType:PCBantenna AntennaGain:0dBi ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:6of8 4SAREvaluation 4.1RFExposureComplianceRequirement 4.1.1StandardRequirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06 4.3.1.StandaloneSARtestexclusionconsiderations UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-ghead orbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions,by measurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARExclusion Thresholdcondition,listedbelow,issatisfied. 4.1.2Limits The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances ≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]· [√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation 17 Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmand fortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparation distanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-03 Page:7of8 4.1.3EUTRFExposure 1)ForBT MeasurementData Channel MaximumPeak Conducted OutputPower (dBm) Tuneup tolerance (dBm) Maximumtu…

Text truncated - open the document above for the full version.

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.:CQASZ20211001820E-01 Applicant:eMoMoTechnologyCo.,Ltd AddressofApplicant:FourthFloor,YongheBuilding,TaiwanIndustrialPShiyan,Baoan,Shenzhen, Guangdong,China EquipmentUnderTest(EUT): Product: AudioLeg-Boost ModelNo.: E108V,E108 TestModelNo.:E108V BrandName: eMoMo FCCID: A4E-E108 Standards:47CFRPart15,SubpartC DateofReceipt:2021-10-25 DateofTest: 2021-10-25to2021-12-30 DateofIssue:2022-03-25 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (RockHuang) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:2of85 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20211001820E-01Rev.01 Initialreport 2022-03-25 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:3of85 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement 47CFRPart15,SubpartCSection 15.203/15.247(c) ANSIC63.10(2013)PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSIC63.10(2013)PASS ConductedPeakOutput Power 47CFRPart15,SubpartCSection 15.247(b)(1) ANSIC63.10(2013)PASS 20dBOccupiedBandwidth 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS CarrierFrequencies Separation 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS HoppingChannelNumber 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS DwellTime 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS PseudorandomFrequency HoppingSequence 47CFRPart15,SubpartCSection 15.247(b)(4)&TCBExclusionList (7July2002) ANSIC63.10(2013)PASS Band-edgeforRF ConductedEmissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.10(2013)PASS RFConductedSpurious Emissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.10(2013)PASS RadiatedSpurious emissions 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.10(2013)PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.10(2013)PASS Note:WhentheEUTcharging,BTwillnotwork. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:4of85 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......................................................................................................................17 5.420DBOCCUPYBANDWIDTH....................................................................................................................................24 5.5CARRIERFREQUENCIESSEPARATION....................................................................................................................30 5.6HOPPINGCHANNELNUMBER................................…

Text truncated - open the document above for the full version.

ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:41of85 DH5_Ant1_Hop ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:42of85 2DH1_Ant1_Hop 2DH3_Ant1_Hop ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:43of85 2DH5_Ant1_Hop 3DH1_Ant1_Hop ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:44of85 3DH3_Ant1_Hop ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:45of85 3DH5_Ant1_Hop ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:46of85 5.8 Band-edgeforRFConductedEmissions TestRequirement:47CFRPart15CSection15.247(d) TestMethod:ANSIC63.10:2013 TestSetup: Remark:Offset=cableloss+attenuationfactor. Limit:Inany100kHzbandwidthoutsidethefrequencybandinwhichthespread spectrumintentionalradiatorisoperating,theradiofrequencypowerthatis producedbytheintentionalradiatorshallbeatleast20dBbelowthatinthe 100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthe desiredpower,basedoneitheranRFconductedoraradiatedmeasurement. ExploratoryTestMode:HoppingandNon-hoppingtransmittingwithallkindofmodulationandallkind ofdatatype FinalTestMode:ThroughPre-scan,findtheDH5ofdatatypeistheworstcaseofGFSK modulationtype,2-DH5ofdatatypeistheworstcaseofπ/4DQPSK modulationtype,3-DH5ofdatatypeistheworstcaseof8DPSKmodulation type. Onlytheworstcaseisrecordedinthereport. TestResults:Pass ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:47of85 TestModeAntennaChNameChannel RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1 Low2402-2.82-47.32≤-22.82PASS High24800.17-47.2≤-19.83PASS LowHop_2402-2.80-48.4≤-22.8PASS HighHop_2480-0.21-46.4≤-20.21PASS 2DH5Ant1 Low2402-2.88-46.35≤-22.88PASS High24800.26-47.37≤-19.74PASS LowHop_2402-8.10-48.88≤-28.1PASS HighHop_2480-0.32-47.47≤-20.32PASS 3DH5Ant1 Low2402-2.83-46.2≤-22.83PASS High24800.17-45.88≤-19.83PASS LowHop_2402-2.05-48.31≤-22.05PASS HighHop_2480-0.97-47.07≤-20.97PASS ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:48of85 Testplotasfollows: DH5_Ant1_Low_2402 DH5_Ant1_High_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:49of85 DH5_Ant1_Low_Hop_2402 DH5_Ant1_High_Hop_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:50of85 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:51of85 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:52of85 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:53of85 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:54of85 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.:CQASZ20211001820E-01 Page:55of85 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:56of85 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:57of85 DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:58of85 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:59of85 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:60of85 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500

ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:61of86 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:62of86 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:63of86 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:64of86 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:65of86 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:66of86 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:67of86 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:68of86 3DH5_Ant1_2480_1000~26500 Remark: Pretest9kHzto25GHz,findthehighestpointwhentesting,soonlytheworstdatawereshowninthetest report.PerFCCPart15.33(a)and15.31(o),Theamplitudeofspuriousemissionsfromintentionalradiators whichareattenuatedmorethan20dBbelowthepermissiblevalueneednotbereportedunlessspecifically requiredelsewhereinthispart. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:69of86 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 hoppingfrequencysystem. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:70of86 Complianceforsection15.247(h) AccordingtoBluetoothCorespecification,theBluetoothsystemincorporateswithanadaptive systemtodetectotheruserwithinthespectrumbandsothatitindividuallyandindependentlyto avoidhoppingontheoccupiedchannels. AccordingtotheBluetoothCorespecification,theBluetoothsystemisdesignednothavetheability tocoordinatedwithotherFHSSSysteminanefforttoavoidthesimultaneousoccupancyofindividual hoppingfrequenciesbymultipletransmitter. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:71of86 5.11 RadiatedSpuriousEmission&Restrictedbands TestRequirement:47CFRPart15CSection15.209and15.205 TestMethod:ANSIC63.10:2013 TestSite:MeasurementDistance:3m(Semi-AnechoicChamber) ReceiverSetup: FrequencyDetectorRBWVBWRemark 0.009MHz-0.090MHzPeak10kHz30kHzPeak 0.009MHz-0.090MHzAverage10kHz30kHzAverage 0.090MHz-0.110MHzQuasi-peak10kHz30kHzQuasi-peak 0.110MHz-0.490MHzPeak10kHz30kHzPeak 0.110MHz-0.490MHzAverage10kHz30kHzAverage 0.490MHz-30MHzQuasi-peak10kHz30kHzQuasi-peak 30MHz-1GHzPeak100kHz300kHzPeak Above1GHz Peak1MHz3MHzPeak Peak1MHz10HzAverage Limit: Frequency Fieldstrength (microvolt/meter) Limit (dBuV/m) Remark Measurement distance(m) 0.009MHz-0.490MHz2400/F(kHz)--300 0.490MHz-1.705MHz24000/F(kHz)--30 1.705MHz-30MHz30--30 30MHz-88MHz10040.0Quasi-peak3 88MHz-216MHz15043.5Quasi-peak3 216MHz-960MHz20046.0Quasi-peak3 960MHz-1GHz50054.0Quasi-peak3 Above1GHz50054.0Average3 Note:15.35(b),Unlessotherwisespecified,thelimitonpeakradiofrequency emissionsis20dBabovethemaximumpermittedaverageemissionlimit applicabletotheequipmentundertest.Thispeaklimitappliestothetotal peakemissionlevelradiatedbythedevice. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20211001820E-01 Page:72of86 TestSetup: Figure1.Below30MHz Figure2.30MHzto1GHzFigure3.Above1GHz TestProcedure: a.1)Below1G:TheEUTwasplacedonthetopofarotatingtable0.8 metersabovethegroundata3metersemi-anechoiccamber.Thetable wasrotated360degreestodeterminethepositionoftheh…

Text truncated - open the document above for the full version.

FCCID:A4E-E108 Setupphotos 1Photographs-EUTTestSetup 1.1RadiatedEmission 9KHz~30MHz: 30MHz~1GHz: FCCID:A4E-E108 Above1GHz: 1.2ConductedEmission