2A79Y-Z4Laser engraving machine

FCC Warning: This transmittermustnot be co-locatedor operatingin conjunctionwithany otherantennaor transmitter. Any Changesor modificationsnot expresslyapprovedby the partyresponsiblefor compliance couldvoid the user'sauthorityto operatethe equipment. This devicecomplieswithpart15 of the FCC Rules.Operationis subjectto the followingtwo conditions:(1) This devicemaynot causeharmfulinterference,and (2) this devicemustaccept any interferencereceived,includinginterferencethat may causeundesiredoperation. Note:This equipmenthas beentestedand foundto complywiththe limitsfor a ClassB digital device,pursuantto part15 of the FCC Rules.Theselimitsare designedto providereasonable protectionagainstharmfulinterferencein a residentialinstallation.This equipmentgenerates, usesand can radiateradiofrequencyenergyand, if not installedand usedin accordancewiththe instructions,maycauseharmfulinterferenceto radiocommunications.However,thereis no guaranteethatinterferencewill not occurin a particularinstallation.If this equipmentdoes causeharmfulinterferenceto radioor televisionreception,whichcan be determinedby turning the equipmentoff and on, the useris encouragedto try to correctthe interferenceby one or moreof the followingmeasures: —Reorientor relocatethe receivingantenna. —Increasethe separationbetweenthe equipmentand receiver. —Connectthe equipmentinto an outleton a circuitdifferentfromthat to whichthe receiveris connected. —Consultthe dealeror an experiencedradio/TVtechnicianfor help. This equipmentcomplieswithFCC radiationexposurelimitsset forthfor an uncontrolled environment.

FCCID:2A79Y-Z4 ExternalPhotograph

LabelLocationOnEUT Label ProductName:Laserengravingmachine ModelNo.:Z4 FCCID:2A79Y-Z4 ThisdevicecomplieswithPart15oftheFCCRules.Operationis subjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2) Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation.

FCCID:2A79Y-Z4 InternalPhotograph ANT

DongguanXinjiaLaserTechnologyCo.,Ltd. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:Z4,Z4-pro,Z4-pro+,Z4-plus,Z4-plus+,Z4-max FCCID:2A79Y-Z4 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: ModelNo.ofantenna:2.4GHZPCBantenna Typeofantenna:PCBantenna Gainoftheantenna:2dBi Frequencyrange:2400-2500MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:DongguanXinjiaLaserTechnologyCo.,Ltd. Address:Room602,No.419,JinxingRoad,LiaobuTown,DongguanCity, GuangdongProvince,China City:Dongguan ZIP/Postalcode:/ Country:China Place:DongguanDate:12/7/2022 Signature: version01

深圳市飞易通科技有限公司 www.feasycom.com Bluetooth antenna of PCB on-board specification 1，Index Item Content Page Remark 1 Index 1 2 Spec Drawing 2 3 Specification 2 4 Antenna On Test Board 3 5 Return Loss 3 6 Radiation Pattern 3 Document Type: 2.4GHZ PCB antenna Document Version: V1.0 Release Date: Aug. 23，2017 Shenzhen Feasycom Co., LTD Telephone: 86-755-27924639 www.feasycom.com 深 圳市飞易通科技有限公司 www.feasycom.com 2，S pec Drawing 3，Sp ecification Product Number: 2.4GHZ PCB antenna Model：2.4GHZ PCB antenna Sample Photo: A. Electrical Characteristics F requency 2400 ~ 2500 MHz S.W.R. <=2.0 Gain 2.0 dBi Efficiency ~ 50% P olarization Linear Impedance 50 Ohm B. Material & Mechanical Characteristics Material of Radiator Gold-plated copper C. Environmental Operation Temperature - 40°C ~ + 85°C Storage Temperature - 40°C ~ + 105°C 深圳市飞易通科技有限公司 www.feasycom.com 4，Antenna On Test Board 5, Return Loss 6，Radiation Pattern Radiation Pattern and Gain were dependent on measurement board design. The specification of coil antenna was measur ed based on the PCB size and installation position as shown in the below figure Test Board. FR4 Thickness 0.8mm 16mm Empty Area 16 x 7.5mm Z X Y Ground Copper 16 x 6mm 50 ohm Feed Line 深圳市飞易通科技有限公司 www.feasycom.com Vertical Horizontal Y - Z Plane Average Gain=1.19 dBi Peak Gain = 2.00 dBi Average Gain = 0.75 dBi Peak Gain= -1.33 dBi Average Gain=-8.7 dBi X - Z Plane Average Gain=-2.91d Bi Peak Gain= -3.71 dBi Average Gain= -8.76dBi Peak Gain= -0.29 dBi Average Gain= -4.19dBi X - Y Plane Average Gain=-0.95 dBi Peak Gain= 0.77 dBi Average Gain= -5.86dBi Peak Gain= 1.35 dBi Average Gain= -2.62 dBi 深圳市飞易通科技有限公司 www.feasycom.com Test Result: Frequency VNA E Total. dB(dB) Efficiency 2400MHz 0.693991 41.07% 2410MHz 1.14338 47.24% 2420MHz 0.223052 40.48% 2430MHz -0.13659 33.93% 2440MHz 0.35326 37.82% 2450MHz 1.039894 42.77% 2460MHz 2.00801 50.67% 2470MHz 0.649809 41.93% 2480MHz -0.215933 36.66% 2490MHz -0.476639 34.62% 2500MHz 0.710741 40.22%

RFEXPOSUREEVALUATION FCCID:2A79Y-Z4 AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 24020.770.77±11.77050.4663 GFSK24412.462.46 ± 13.46050.6933 24802.102.10±13.10050.6433 24023.303.30±14.30050.8343 π/4-DQPSK24414.954.95 ± 15.95051.2303 24804.494.49±15.49051.1153 24024.884.88±15.88051.2003 8-DPSK24414.404.40 ± 15.40051.0833 24805.005.00±16.00051.2543 24022.042.04±13.04050.6243 BLE24401.611.61 ± 12.61050.5703 24802.302.30±13.30050.6733 Result:NoStandaloneSARtestisrequired.

Page1of14 AppendixTestData ReportNo.:78340WC20013401TestDate:2022.11.24 TestEngineer:Auditor: Temperature:24.3 °C Relative Humidity: 56.2% Pressure:1012hPa Page2of14 1.-6dBBandwidth ConditionAntennaRateFrequency(MHz)-6dBBW(kHz)limit(kHz)Result NVNTANT11Mbps2402662.30500Pass NVNTANT11Mbps2440.00663.33500Pass NVNTANT11Mbps2480661.07500Pass -6dB_Bandwidth_BLE_1Mbps_2402 -6dB_Bandwidth_BLE_1Mbps_2440 Page3of14 -6dB_Bandwidth_BLE_1Mbps_2480 Page4of14 2.99%OccupiedBandwidth ConditionAntennaRateFrequency(MHz)99%%BW(MHz) NVNTANT11Mbps24021.035 NVNTANT11Mbps2440.001.032 NVNTANT11Mbps24801.035 99%_Occupied_Bandwidth_BLE_1Mbps_2402 99%_Occupied_Bandwidth_BLE_1Mbps_2440 Page5of14 99%_Occupied_Bandwidth_BLE_1Mbps_2480 Page6of14 3.Bandedge ConditionAntennaRate StartFrequency (MHz) StopFrequency (MHz) Max.MarkFrequency (MHz) Spurious level(dBm) limit(dBm)Result NVNTANT11Mbps231024052316.65-45.37-18.11Pass NVNTANT11Mbps247525002484.15-45.67-17.87Pass 1_Reference_Level_BLE_1Mbps_2402 2_Bandedge_BLE_1Mbps_2402 Page7of14 1_Reference_Level_BLE_1Mbps_2480 2_Bandedge_BLE_1Mbps_2480 Page8of14 4.PeakOutputPower ConditionAntennaRate Frequency (MHz) Max.Conducted Power(dBm) Max.Conducted Power(mW) Limit(mW)Result NVNTANT11Mbps24022.041.601000Pass NVNTANT11Mbps2440.001.611.451000Pass NVNTANT11Mbps24802.301.701000Pass Peak_Output_Power_BLE_1Mbps_2402 Peak_Output_Power_BLE_1Mbps_2440 Page9of14 Peak_Output_Power_BLE_1Mbps_2480 Page10of14 5.PowerSpectralDensity ConditionAntennaRateFrequency(MHz)PowerSpectralDensity(dBm)Limit(dBm/3kHz)Result NVNTANT11Mbps2402-14.298Pass NVNTANT11Mbps2440.00-13.838Pass NVNTANT11Mbps2480-14.088Pass Power_Spectral_Density_BLE_1Mbps_2402 Power_Spectral_Density_BLE_1Mbps_2440 Page11of14 Power_Spectral_Density_BLE_1Mbps_2480 Page12of14 6.SpuriousEmission ConditionAntennaRateFrequency(MHz)SpuriousMAX.Value(dBm)LimitResult NVNTANT11Mbps2402-35.14-18.11Pass NVNTANT11Mbps2440.00-34.75-17.48Pass NVNTANT11Mbps2480-34.24-17.87Pass 1_Reference_Level_BLE_1Mbps_2402 2_Spurious_Emission_BLE_1Mbps_2402 Page13of14 1_Reference_Level_BLE_1Mbps_2440 2_Spurious_Emission_BLE_1Mbps_2440 Page14of14 1_Reference_Level_BLE_1Mbps_2480 2_Spurious_Emission_BLE_1Mbps_2480 ---end---

ReportNo.:78340WC20013401FCCID:2A79Y-Z4Page1of30 Code:AB-RF-05-b FCCTestReport ClientName:DongguanXinjiaLaserTechnologyCo.,Ltd. ClientAddress: Room602,No.419,JinxingRoad,Liaobu Town,DongguanCity,GuangdongProvince, China ProductName:Laserengravingmachine ReportDate:Dec.06,2022 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:78340WC20013401FCCID:2A79Y-Z4Page2of30 Code:AB-RF-05-b Contents 1.GeneralInformation ............................................................................................................................................6 1.1.ClientInformation ....................................................................................................................................6 1.2.DescriptionofDevice(EUT) ..................................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest .................................................................................................7 1.4.DescriptionofTestConfiguration ..........................................................................................................7 1.5.DescriptionOfTestSetup ......................................................................................................................8 1.6.TestEquipmentList .................................................................................................................................9 1.7.MeasurementUncertainty ....................................................................................................................10 1.8.DescriptionofTestFacility ...................................................................................................................10 2.SummaryofTestResults .................................................................................................................................11 3.ConductedEmissionTest ................................................................................................................................12 3.1.TestStandardandLimit ........................................................................................................................12 3.2.TestSetup ...............................................................................................................................................12 3.3.TestProcedure .......................................................................................................................................12 3.4.TestData .................................................................................................................................................12 4.RadiationSpuriousEmissionandBandEdge .............................................................................................15 4.1.TestStandardandLimit ........................................................................................................................15 4.2.TestSetup ...............................................................................................................................................15 4.3.TestProcedure .......................................................................................................................................16 4.4.TestData .................................................................................................................................................17 5.MaximumPeakOutputPowerTest ...............................................................................................................25 5.1.TestStandardandLimit ........................................................................................................................25 5.2.TestSetup ...............................................................................................................................................25 5.3.TestProcedure .......................................................................................................................................25 5.4.TestData .................................................................................................................................................25 6.6DBOccupyBandwidthTest ..........................................................................................................................26 6.1.TestStandardandLimit ........................................................................................................................26 6.2.TestSetup ...............................................................................................................................................26 6.3.TestProcedure .......................................................................................................................................26 6.4.TestData .................................................................................................................................................26 7.PowerSpectralDensityTest ...........................................................................................................................27 7.1.TestStandardandLimit ........................................................................................................................27 7.2.TestSetup ...............................................................................................................................................27 7.3.TestProcedure .......................................................................................................................................27 7.4.TestData .................................................................................................................................................27 8.100kHzBandwidthofFrequencyBandEdgeRequirement ......................................................................28 ReportNo.:78340WC20013401FCCID:2A79Y-Z4Page3of30 Code:AB-RF-05-b 8.1.TestStandardandLimit ..........................................…

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FCCID:2A79Y-Z4 TestSetupPhotograph PhotoofConductedEmissionMeasurement PhotoofRadiationEmissionTest