2A7DX-8512Tab 18 Keyboard

USER GUIDE BV Wireless Keyboard Type-c charging interface Power switch ON/OFF and Bluetooth connection indicator light: it will be on for 3s after turning on the power switch, and will flicker after entering the Bluetooth Pairing mode, and it will be off upon successful connection of Bluetooth. Case status indicator light: the light will be on when the keyboard is in upper case state. Low-battery indicator light: it will flicker in case of low battery, promoting the user to make charging. Charging indicator light: it will be red while charging, and upon completion of the recharging,the red light goes off  Product Model & Specification 1. Standard Bluetooth interface 2. Effective operating distance: <10 m 3. Modulation mode: GFSK 4. Operating voltage: DV5V 5. Operating current: <8 mA 6. Standby current: <0.65 mA 7. Sleeping current: <0.03 mA 8. Charging current: 180±30 mA 9. Capacity of lithium barrtery: 200 mAh 10. Charging duration: <3 h 11. Standby time: >35 days 12. Sleeping standby time: >100 days 13. Sustainable operating hours: >100 h 14. Operating temperature: -10~+45 Start Guide Notice 1. When not in use for a long time, please turn off the keyboard, so as to lengthen the battery life. 2. In order to ahieve longer battery life, it is recommended charging the keyboard only when the power lamp flickers.The charging duration had better not be less than 2h each time. Energy-saving sleep mode When the keyboard makes no operation within 10min, it will enter Sleep Mode automatically. All LEDs will be off, and if to use again, you can press any key and wait for around 3s, then the keyboard will be awakened and will connect with the Bluetooth automatically, thus coming into normal operation. Troubleshooting 1. Confirm that the power has been turned on. 2. Confirm that the keyboard is within operatable distance range. 3. Confirm that the battery is of electricity. 4. Confirm that Bluetooth Setting of tablet PC has been turned on. 5. Confirm that wireless keyboard and Bluetooth have been connected. 6. Confirm that wireless keyboard and Bluetooth have been paried. Cleaning Clean the keyboard with clear water, alcohol or similar alcohol agents. Charging In case of low battery, the low-battery indicator light will flicker constantly, and at this time the keyboard shall be charged. 1. Connect the Type-T end of the original accessory USB cable to the Type-T charging port on the keyboard. 2. Connect A end of USB cable to USB interface of the power adapter or computer (excluding power adapter). 3. Keyboard charging process, the charge will normally on lights, full of automatically after go out. Operating steps for connection of Bluetooth and keyboard 1. After turning the power switch to the ON position, the power indicator light will be on for 3 seconds. the bluetooth indicator starts to flash, and the bluetooth keyboard enters pairing mode. 2. In the menu of Bluetooth Setting, search “Tab 18 Keyboard” and click it, and then the keyboard will be connected automatically. 3. Upon successful Bluetooth connection, the paring indicator light will be of, In the list of Bluetooth devices, the device "Connected". 4. The bluetooth key pair: often press the pairing “ FN + Shift ” key for 3 seconds, the red light shining start matching, flash at the rate of 0.5 seconds, 0.5 seconds, the code successfully. Red light off, pairing time out 180 seconds, red light off, stop coding. English 12345  Description of keyboard shortcut keys Fn+Key icon Cut Silent mode Volume down Volume up Brightness decrease Brightness increase Lock screen FCC Warning 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. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

DOKECOMMUNICATION(HK) LIMITED FederalCommunicationsCommission Authorizationand EvaluationDivision EquipmentAuthorizationBranch 7435 OaklandMills Road Columbia,MD 21046 10/24/23 U.S. AgentDesignation DOKECOMMUNICATION(HK) LIMITEDacknowledgestheir consentfor the followingcontactlocatedin the UnitedStatesto act as their agent for serviceof processfor the equipmentfor which authorizationis sought(FCC ID:2A7DX-8512): Nameand companyof U.S. agent: Tim Payne,FCC US Agent,LLC PhysicalU.S. addressof agent:3722 IllinoisAvenue,Saint Charles,IL, 60174,USA FRN of U.S. agent: 0033402884 Email addressof U.S. agent: [email protected] FCC US Agent,LLCacknowledgestheir obligationto acceptserviceof processon behalfofDOKE COMMUNICATION(HK) LIMITED. DOKECOMMUNICATION(HK) LIMITEDwith theFRN 0027174960acceptsits obligationto maintainan agentfor serviceof processin the UnitedStatesfor no less than one year after eitherthe granteehas permanentlyterminatedall marketingand importationof the applicableequipmentwithinthe U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. By signingthis form, we confirmthe aboveand that we are awareof the applicationrequirementslisted under§ 2.911(d)(7). The informationprovidedin this letter is basedon the referencedrule parts of Title 47 of the CFR as well as KDB 986446D01. An expirationdate for this letter does not exist. In case the U.S. agent changes,the granteeis obligatedto notify the FCC within 30 days via the grantingTCB. Sincerely, Signat ure LynneChen Manager DOKECOMMUNICATION(HK) LIMITED Signature Tim Payne Manager FCC US Agent,LLC 48_[model] US_Agent_2.911(d)(7)-U, V05

Page1of5FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of5FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of5FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of5FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5of5FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 Photo10 ------End------

Label FCC ID: 2A7DX-8512

Page1of4FCCID:2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of4FCCID:2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Antenna Page3of4FCCID:2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4FCCID:2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 ------End------

RFExposureevaluation FCCID:2A7DX-8512 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance BLE Frequency (MHz) GFSK(BLE1M) 240224402480 Target(dBm)1.01.01.0 Tolerance±(dB)1.01.01.0 Page2of2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.552.01.580.501<3.0Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of36ReportNo.:AIT23100708FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:DOKECOMMUNICATION(HK)LIMITED Applicantadd.: RM1902EASEYCOMMBLDG253-261HENNESSYROADWANCHAIHK CHINA Manufacturer:ShenzhenDOKEElectronicCo.,Ltd Manufactureradd.: 801,Building3,7thIndustrialZone,YulvCommunity,YutangRoad, GuangmingDistrict,Shenzhen,China. ProductInformation: ProductName:Tab18Keyboard ModelNo:8512 BrandName:Blackview FCCID:2A7DX-8512 Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Oct.07,2023DateofTest:Oct.07,2023~Oct.19,2023 DateofIssue:Oct.20,2023TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: SimbaHuangSeal.chen Page2of36ReportNo.:AIT23100708FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS...........................................................................................................................................................................2 2TESTSUMMARY.................................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty........................................................................................4 2.2MeasurementUncertainty....................................................................................................................4 3TESTFACILITY....................................................................................................................................................................5 3.1Deviationfromstandard.......................................................................................................................5 3.2Abnormalitiesfromstandardconditions...............................................................................................5 3.3TestLocation.........................................................................................................................................5 4GENERALINFORMATION................................................................................................................................................6 4.1Testfrequencies...................................................................................................................................7 4.2EUTPeripheralList..............................................................................................................................7 4.3TestPeripheralList...............................................................................................................................7 4.4TESTMETHODOLOGY.......................................................................................................................8 4.4.1EUTConfiguration.............................................................................................................................8 4.4.2EUTExercise.....................................................................................................................................8 4.4.3GeneralTestProcedures..................................................................................................................8 4.5DescriptionofTestModes....................................................................................................................9 5EQUIPMENTUSEDDURINGTEST...............................................................................................................................10 6TESTRESULTSANDMEASUREMENTDATA..........................................................................................................11 6.1Antennarequirement..........................................................................................................................11 6.2OnTimeandDutyCycle....................................................................................................................12 6.3MaximumConductedOutputPowerMeasurement..........................................................................13 6.46dBSpectrumBandwidthMeasurement..........................................................................................15 6.599%OccupyBandwidth.....................................................................................................................16 6.6PowerSpectralDensity......................................................................................................................17 6.7ConductedSpuriousEmissionsandBandEdgesTest.....................................................................18 6.8Restrict-bandBand-edgeMeasurements..........................................................................................19 6.9RadiatedEmissionsMeasurement....................................................................................................22 6.10ConductedEmissions......................................................................................................................33 7TESTSETUPPHOTOGRAPHSOFEUT......................................................................................................................36 8EXTERNALPHOTOGRAPHSOFEUT........................…

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Bluetooth Antenna specification&Test report Yichip Microelectronics ©2014 Gian and Efficiency Frequency (MHz) Efficiency(%) Gain(dBi) 2300 28.41 -1.40 2320 38.63 -0.11 2340 42.82 0.36 2360 47.04 0.41 2380 47.39 0.58 2400 53.31 0.73 2420 63.69 2.10 2440 66.14 2.52 2460 64.61 2.72 2480 63.93 2.79 2500 65.00 2.97 2520 60.03 2.90 2540 58.27 3.12 3D and 1D Radiation Patterns Cut1 Max: 3 Min: -7 Scale: 1/div Angle (? 0 1 8 0 3 0 2 1 0 6 0 2 4 0 9 0 2 7 0 1 2 0 3 0 0 1 5 0 3 3 0 Cut2 Max: 4 Min: -16 Scale: 2/div Angle (? Cut3 Max: 4 Min: -10 Scale: 2/div Angle (? 0 1 8 0 3 0 2 1 0 6 0 2 4 0 9 0 2 7 0 1 2 0 3 0 0 1 5 0 3 3 0 0 1 8 0 3 0 2 1 0 6 0 2 4 0 9 0 2 7 0 1 2 0 3 0 0 1 5 0 3 3 0

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 1 of 24 AppendixB RFTestDataforBT(BLE)(ConductedMeasurement) ProductName:Tab18Keyboard TradeMark:Blackview TestModel:8512 EnvironmentalConditions Temperature: 25.6  C RelativeHumidity:55.7% ATMPressure:100.0kPa TestEngineer:SimbaHuang Supervisedby:SealChen DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 2 of 24 Contents Page COVERPAGE 1DutyCycle........................................................................................................................................................................................3 1.1TestResult............................................................................................................................................................................3 1.2TestGraphs...........................................................................................................................................................................4 2MaximumConductedOutputPower.................................................................................................................................................6 2.1TestResult............................................................................................................................................................................6 2.2TestGraphs...........................................................................................................................................................................7 3-6dBBandwidth.................................................................................................................................................................................9 3.1TestResult............................................................................................................................................................................9 3.2TestGraphs.........................................................................................................................................................................10 4MaximumPowerSpectralDensityLevel.........................................................................................................................................12 4.1TestResult..........................................................................................................................................................................12 4.2TestGraphs.........................................................................................................................................................................13 5BandEdge......................................................................................................................................................................................15 5.1TestResult..........................................................................................................................................................................15 5.2TestGraphs.........................................................................................................................................................................16 6ConductedRFSpuriousEmission..................................................................................................................................................18 6.1TestResult..........................................................................................................................................................................18 6.2TestGraphs.........................................................................................................................................................................19 7RestrictBand..................................................................................................................................................................................22 7.1TestResult..........................................................................................................................................................................22 7.2TestGraphs.........................................................................................................................................................................23 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 3 of 24 1DutyCycle 1.1 TestResult ModeFrequency(MHz)DutyCycle(%)1/T(kHz) BLE1M240263.482.56 BLE1M244063.52.56 BLE1M248063.662.56 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 4 of 24 1.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 5 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 6 of 24 2MaximumConductedOutputPower 2.1 TestResult ModeFrequency(MHz)ConductedPower (dBm) Limit(dBm)Verdict BLE1M24021.2830Pass BLE1M24400.9430Pass BLE1M24800.3330Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 7 of 24 2.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 8 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 9 of 24 3-6dBBandwidth 3.1 TestResult ModeFrequency(MHz)-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict BLE1M24020.7330.5Pass BLE1M24400.720.5Pass BLE1M24800.7160.5Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 10 of 24 3.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 11 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23100708FW1 FCCID:2A7DX-8512 Page 12 of 24 4MaximumPowerSpectralDensityLevel 4.1 TestResult ModeFrequency(MHz)ConductedPSD (dBm/3-100kHz) Limit…

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Page1of2FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2FCCID: 2A7DX-8512 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------