2AIKW-DB-ATElectric Skateboard

FCC ID LABEL: Ca. 15mm x 30mm Label Location FCC ID: 2AIKW-DB-AT

FCC RF Exposure EUT Description: Electric Skateboard Model No.: DB-AT FCC ID: 2AIKW-DB-AT 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v01 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separati on distance mm Result Limit SAR Test Exclusion 2480 0.89 0±1(1) 1.26 5 0.39651 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2407083691-E, antenna gain=2.5dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.39651 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3981 JTW2G50AN8010A400R MultilayerChipAntenna For2.5GHzWirelessCommunication 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3982 Features ※MonolithicSMDwithsmall,low-profileandlight-weighttype. ※Widebandwidth ※RoHScompliant Applications Specifications Centerfrequency2.5GHz Bandwidth400MHz(typ.) Peakgain2.5dBi(typ.)(XZ-V) AverageGain0.5dBi(typ.)(XZ-V) VSWR2(max) Impedance50Ω PowerCapacity2W(max) Operationtemperature-40~+85°C Storagetemperature-40~+85°C 2.4GHzWALA,Home RF System,Bluerooth,Modules,etc ※ 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3983 TerminalConfiguration PinNo.12 PinassignmentNC DimensionsandRecommendedPCBoardPattern SymbolLWHa1a2 Dimensions(mm)8.0±0.21.0±0.21.0±0.20.5±0.21.0±0.2   Unit : mm L W a1 H a2 Feeding Point 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3984 TypicalElectricalCharacteristics(T=25oC) ※TestBoard 40 No Ground Antenna 12 20 Ground Matching circuits Feeding line 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3985 ※ReturnLosswithmatching 1.52.02.53.03.51.04.0 -30 -20 -10 -40 0 freq, GHz dB(S(1,1)) m1 m2 m3 m1 f req= dB(S(1,1))=-25.307 2.400GHz m2 f req= dB(S(1,1))=-21.843 2.500GHz m3 f req= dB(S(1,1))=-23.127 2.450GHz / Circuits ※WithMatchingCircuits(Unitinmm) (Matchingcircuitandcomponentvalueswillbedifferent,dependingonPCBlayout) *Linewidthshouldbedesignedtomatch50characteristicimpedance,dependingonPCB materialandthickness. 1 1.5 7 1 1 2.7 nH 1 pF Ground No Ground Feeding line Land Solder Resist Ω 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3986 ※RadiationPatterns XZ cut @2.45GHz Vertical Horizontal YZ cut @2.45GHz Vertical Horizontal YZ-V/YZ-H XY cut @2.45GHz Vertical Horizontal XY-V/XY-H 180 o 270 o 0 o 90 o X Z Y XY-cut scanning direction XZ-V/XZ-H 180 o 270 o 0 o 90 o X Z Y XZ-cut scanning direction 180 o 270 o 0 o 90 o X Z Y YZ-cut scanning direction 深圳市卓联微科技有限公司JTW2G50AN8010A400R www.jointwel.com.cnTEL:4008-515-3987 RemindersforusersofJTWceramicchipantennas 1.Thischipantennaismadeofceramicmaterialswhichare relativelymorerigidandbrittlecomparedtoprintedcircuitboard materials.Bendingofcircuitboardatthelocationswherechip antennaismountedmaycausethecrackingofsolderjointsor antennaitself. 2.Punching/cuttingofthebreak-offtabofPCBpanelmaycause severebendingofthecircuitboardwhichmayresultincrackingof solderjointsorchipantennaitself.Thereforebreak-offtabshall belocatedawayfromtheinstallationsiteofchipantenna. 3.Becautiouswhenultrasonicweldingprocessneedstobeused nearthelocationswherechipantennasareinstalled.Strong ultrasonicvibrationmaycausethecrackingofchipantennasolder joints. PresenteddataweremeasuredonreferencePCB(ground)as showninthisspecification.Whentheantennaplacementorsize ofthePCBischanged,antennaperformanceandvaluesof matchingcomponentsmaydifferfromdatashownhere. 4.InformationpresentedinthisReferenceSpecificationisbelievedto becorrectasofthedateofpublishing.JointWelTechnologies CorporationreservestherightstochangetheReference Specificationwithoutnoticeduetotechnicalimprovements,etc. PleaseconsultwithJointWel’sengineeringteamaboutthelatest informationbeforeusingthisproduct.Perrequest,wemay provideadviceandassistanceinimplementingthisantennatoa customer’sdevicebysimulationorrealmeasurementofthe interesteddeviceinourtestingfacilities.

Page 1 of 43 Report No.: HK2407083691-E FCC Test Report Test Report On Behalf of Evolve Skateboards PTY LTD For Electric Skateboard Model No.: DB-AT, DB-ST, DC-AT, DC-ST, RD, FB-AT, FB-ST, STKX, HB-ST, HB-AT, HC-ST, HC-AT, Renegade FCC ID: 2AIKW-DB-AT Prepared For: Evolve Skateboards PTY LTD 1/15 John Duncan Court, Varsity Lakes Gold Coast, QLD, Australia Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Jul. 08, 2024 ~ Jul. 17, 2024 Date of Report: Jul. 17, 2024 Report Number: HK2407083691-E Page 2 of 43 Report No.: HK2407083691-E Test Result Certification Applicant’s Name ................... : Evolve Skateboards PTY LTD Address .................................... : 1/15 John Duncan Court, Varsity Lakes Gold Coast, QLD, Australia Manufacturer's Name ............. : JINHUA JEFF SPORTS GOODS CO.,LTD Address .................................... : The 3rd Floor,Factory Building 2,No.1766 xin hong Road,Qiubin Street,Wu cheng District,Jinhua City,Zhejiang Province,CHINA Product Description Trade Mark ................................. : N/A Product Name ............................ : Electric Skateboard Model and/or Type Reference .. : DB-AT, DB-ST, DC-AT, DC-ST, RD, FB-AT, FB-ST, STKX, HB-ST, HB-AT, HC-ST, HC-AT, Renegade Standards ................................ : 47 CFR FCC Part 15 Subpart C 15.247 KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test .............................................. : Date (s) of Performance of Tests ............... : Jul. 08, 2024 ~ Jul. 17, 2024 Date of Issue ............................................. : Jul. 17, 2024 Test Result ................................................. : Pass Testing Engineer Len Liao Technical Manager Sliver Wan Authorized Signatory Jason Zhou Page 3 of 43 Report No.: HK2407083691-E Contents Page 1 Test Summary ................................................................................................................................................ 5 1.1 Test Description ......................................................................................................................................... 5 1.2 Measurement Uncertainty ......................................................................................................................... 6 1.3 Information of the Test Laboratory ............................................................................................................ 6 2 General Information ....................................................................................................................................... 7 2.1 General Description of EUT ...................................................................................................................... 7 2.2 Description of Test Conditions .................................................................................................................. 9 2.3 Description of Test Setup ........................................................................................................................ 10 2.4 Description of Support Units .................................................................................................................... 11 3 Equipments List for All Test Items ............................................................................................................. 12 4 Test Result .................................................................................................................................................... 13 4.1 Antenna Requirement.............................................................................................................................. 13 4.2 Conduction Emissions Measurement ...................................................................................................... 14 4.3 Radiated Emissions Measurement .......................................................................................................... 18 4.4 Maximum Output Power Measurement ................................................................................................... 27 4.5 Power Spectral Density ........................................................................................................................... 28 4.6 6dB Bandwidth ........................................................................................................................................ 31 4.7 Occupied Bandwidth ................................................................................................................................ 34 4.8 Band Edge ............................................................................................................................................... 35 4.9 Conducted Spurious Emissions .............................................................................................................. 37 5 Test Setup Photos ....................................................................................................................................... 41 6 Photos of the EUT ........................................................................................................................................ 43 Page 4 of 43 Report No.: HK2407083691-E ** Modified History ** Revision Description Issued Data Remark Revision 1.0 Initial Test Report Release Jul. 17, 2024 Jason Zhou Page 5 of 43 Report No.: HK2407083691-E 1 Test Summary 1.1 Test …

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