2ATQ9-K2Wireless Earphones

FCCID:2ATQ9-K2ExternalPhotographs

LabelArtwork Size:40*5mm FCCID:2ATQ9-K2

FCCID:2ATQ9-K2InternalPhotographs

version01 DongguanGorsunElectronicsCo.,Ltd DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:K2 FCCID:2ATQ9-K2 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsfor internal antennatype(s) describedbelow: ModelNo.ofantenna:N/A Typeofantenna:PCBantenna Gainoftheantenna: -0.58 dBi Frequencyrange: 2402-2480 MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname: DongguanGorsunElectronicsCo.,Ltd Address:No.140ChashiRoad,TangjiaoVillage,ChashanTown, City:Dongguan ZIP/Postalcode:523378 Country:China Place: HuiguangLu Date: 2020-03-26 Signature:

KSIGN(Guangdong) Testing c。，Ltd. First Floor West Side, B uilding C, Z 。ne A, Fuyuan New Factory, Jiujiu Industrial Park, Minzhu Village, Shat。u Community, Sh司ingStreet, Bao ’ an District, Shenzhen City, Guangdong Province, P. R. China Tel.: +(86) 755-2985 2678 Fax:+ ( 86) 755-2985 2397巳mail:[email protected] Website:www.gdksign.com REQUIREMENT RF Exposure Evaluation FCC ID: 2ATQ9-K2 KD8447498 D01 General RF Exp。sure Guidance v06, Clause 4.3.1 (a) [(max. power of channel, including tune-up tolerance,mW) I (min. test separation distance, mm)] · [,lf(GHz)] S 3.0 Where -f(GHz) is the RF channel transmit frequency in GHz -Power and distance are rounded to the nearest mW and mm before calculation -The test exclusions are applicable only when the minimum test separation distance is :;; 50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is< 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. TEST RESULT 因Passed 口NotApplicable B T5.0 Channel Max. Max. Maximum Tune up Test m。de Frequency Measured Tune up Output Calculating tolerance Limit ResL』Its Power Power Power data (MHz ) ( dBm ) (dBm) ( dBm ) ( mW ) 2402 1.03 1.03±1 2.03 1.60 0.496 DH5 2441 1.40 1.40±1 2.40 1.74 2480 1.01 1.01 ±1 2.01 1.59 0.499 3.00 Pass 2402 1.93 1.93士1 2.93 1.96 0.608 2DH5 2441 2.21 2.21±1 3.2 ° 1 2.09 0.652 2480 1.79 1.79±1 2.79 1.90 0.597 Note: -The maximum antenna gain is -0.58dBi -The exposure safety distance is less than 5mm. ＊＊＊＊＊＊＊＊＊＊＊＊ 0.543

Page 2 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. TABLEOFCONTENTSPage 1.TESTSUMMARY ....................................................................................................................................................................... 3 1.1.TESTSTANDARDS .................................................................................................................................................................... 3 1.2.REPORTVERSION .................................................................................................................................................................... 3 1.3.TESTDESCRIPTION .................................................................................................................................................................. 4 1.4.TESTFACILITY ................................................................................................................................................................... 5 1.5.MEASUREMENTUNCERTAINTY .................................................................................................................................................. 6 1.6.ENVIRONMENTALCONDITIONS .................................................................................................................................................. 6 2.GENERALINFORMATION ......................................................................................................................................................... 7 2.1.CLIENTINFORMATION ............................................................................................................................................................. 7 2.2.GENERALDESCRIPTIONOFEUT ............................................................................................................................................... 7 2.3.OPERATIONSTATE ................................................................................................................................................................... 8 2.4.MEASUREMENTINSTRUMENTSLIST ........................................................................................................................................... 9 2.5.TESTSOFTWARE ..................................................................................................................................................................... 9 3.TESTITEMANDRESULTS ........................................................................................................................................................ 10 3.1.ANTENNAREQUIREMENT ....................................................................................................................................................... 10 3.2.CONDUCTEDEMISSION .......................................................................................................................................................... 11 3.3.PEAKOUTPUTPOWER ........................................................................................................................................................... 14 3.4.99%OCCUPIEDBANDWIDTH&20DBBANDWIDTH ...................................................................................................... 19 3.5.CARRIERFREQUENCIESSEPARATION ........................................................................................................................................ 28 3.6.NUMBEROFHOPPINGCHANNEL ............................................................................................................................................ 31 3.7.DWELLTIME ....................................................................................................................................................................... 33 3.8.BANDEDGEEMISSIONS (RADIATED) ...................................................................................................................................... 36 3.9.BANDEDGEANDSPURIOUSEMISSION(CONDUCTED) ................................................................................................................. 41 3.10.RADIATEDSPURIOUSEMISSIONS ........................................................................................................................................... 46 3.11.PSEUDORANDOMFREQUENCYHOPPINGSEQUENCE ................................................................................................ 57 4.EUTTESTPHOTOS .................................................................................................................................................................. 58 5.PHOTOGRAPHSOFEUTCONSTRUCTIONAL .......................................................................................................................... 59 Page 3 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 1.TESTSUMMARY 1.1.TestStandards Thetestswereperformedaccordingtofollowingstandards: FCCRulesPart15.247:Operationwithinthebandsof902-928MHz,2400-2483.5MHz,and 5725-5850MHz. ANSIC63.10-2013:AmericanNationalStandardforTestingUnlicensedWirelessDevices. 1.2.Reportversion RevisedNo.DateofissueDescription 01Mar.17,2020Original Page 4 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 1.3.TestDescription FCCPart15SubpartC(15.247) TestItem StandardSection ResultTestEngineer FCC AntennaRequirement 15.203PassEmiyaLin ConductedEmission 15.207Pass EmiyaLin RestrictedBands 15.205PassEmiyaLin HoppingChannelSeparation 15.247(a)(1)Pass EmiyaLin DwellTime 15.247(a)(1)PassEmiyaLin PeakOutputPower 15.247(b)(1)PassEmiyaLin NumberofHopping Frequency 15.247(b)(1)Pass EmiyaLin BandEdgeEmissions 15.247(d)PassEmiyaLin RadiatedSpuriousEmission 15.247(c)&15.209PassEmiyaLin 99%OccupiedBandwidth&20dB Bandwidth 15.247(a)Pass EmiyaLin PseudorandomFrequencyHopping Sequence 15.247(a)(1)PassEmiyaLin Note:Themeasurementuncertaintyisincludedinthetestresult. Page 5 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd…

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Page 37 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Horizontal TestMode:2DH5Mode2402MHz Measurement=Readinglevel+CorrectFactor Page 38 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical TestMode:2DH5Mode2402MHz Measurement=Readinglevel+CorrectFactor Page 39 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Horizontal TestMode:2DH5Mode2480MHz Measurement=Readinglevel+CorrectFactor Page 40 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical TestMode:2DH5Mode2480MHz Measurement=Readinglevel+CorrectFactor Page 41 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 3.9.BandEdgeandSpuriousEmission(Conducted) LIMIT FCCCFRTitle47Part15SubpartCSection15.247(d): Inany100kHzbandwidthoutsidethefrequencybandinwhichthespreadspectrumintentionalradiatoris operating,theradiofrequencypowerthatisproducedbytheintentionalradiatorshallbeatleast20dBbelow thatinthe100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthedesiredpower,basedon eitheranRFconductedoraradiatedmeasurement. TESTCONFIGURATION TESTPROCEDURE 1.Thetransmitteroutputwasconnectedtothespectrumanalyzerthroughanattenuator,thepathlosswas compensatedtotheresultsforeachmeasurement. 2.SettothemaximumpowersettingandenabletheEUTtransmitcontinuously 3.Usethefollowingspectrumanalyzersettings: RBW=100KHz,VBW≥RBW Sweep=auto,Detectorfunction=peak,Trace=maxhold 4.Measureandrecordtheresultsinthetestreport. TESTMODE: Pleaserefertotheclause2.3. TESTRESULTS Page 42 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. DH5 CH00-BandedgeCH78-Bandedge Non-HoppingNon-Hopping HoppingHopping Page 43 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. DH5 CH00-SE CH39-SE CH78-SE Page 44 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 2DH5 CH00-BandedgeCH78-Bandedge Non-HoppingNon-Hopping HoppingHopping Page 45 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 2DH5 CH00-SE CH39-SE CH78-SE Page 46 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 3.10.RadiatedSpuriousEmissions Limit RadiatedEmissionLimits(9kHz~1000MHz) Frequency (MHz) FieldStrength (microvolt/meter) MeasurementDistance (meters) 0.009~0.4902400/F(KHz)300 0.490~1.70524000/F(KHz)30 1.705~30.03030 30~881003 88~2161503 216~9602003 Above9605003 RadiatedEmissionLimit(Above1000MHz) Frequency (MHz) DistanceMeters(at3m) PeakAverage Above10007454 Note: (1)Thetighterlimitappliesatthebandedges. (2)EmissionLevel(dBuV/m)=20logEmissionLevel(uV/m). TestConfiguration Below30MHzTestSetup Page 47 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Below1000MHzTestSetup Above1GHzTestSetup TestProcedure 1.TheEUTwassetupandtestedaccordingtoANSIC63.10:2013 2.TheEUTisplacedonaturntablewhichis0.8meterabovegroundforbelow1GHz,and1.5mforabove1 GHz.Theturntableisrotated360degreestodeterminethepositionofthemaximumemissionlevel. 3.TheEUTwasset3metersfromthereceivingantenna,whichwasmountedonthetopofavariableheight antennatower. 4.Foreachsuspectedemission,theEUTwasarrangedtoitsworstcaseandthentunetheAntennatower (from1mto4m)andturntable(from0degreeto360degrees)tofindthemaximumreading.Apre-amp andahighpassfilterareusedforthetestinordertogetbettersignalleveltocomplywiththeguidelines. 5.SettothemaximumpowersettingandenabletheEUTtransmitcontinuously. 6.Usethefollowingspectrumanalyzersettings (1)Spanshallwideenoughtofullycapturetheemissionbeingmeasured; (2)Below1GHz: RBW=120kHz,VBW=300kHz,Sweep=auto,Detectorfunction=peak,Trace=maxhold; IftheemissionleveloftheEUTmeasuredbythepeakdetectoris3dBlowerthantheapplicablelimit,the peakemissionlevelwillbereported.Otherwise,theemissionmeasurementwillberepeatedusingthe quasi-peakdetectorandreported. (3)From1GHzto10 th harmonic: RBW=1MHz,VBW=3MHzPeakdetectorforPeakvalue. RBW=1MHz,VBW=10HzRMSdetectorforAveragevalue. Page 48 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. TestMode Pleaserefertotheclause2.3. TestResult 9KHz~30MHzand18GHz~25GHz From9KHz~30MHzand18GHz~25GHz:Conclusion:PASS Note: 1)Measurement=Readinglevel+CorrectFactor CorrectFactor=AntennaFactor+CableLoss-PreamplifierFactor 2)Thepeaklevelislowerthanaveragelimit(54dBuV/m),thisdataisthetooweakinstrumentofsignalis unabletotest. 3)Theemissionlevelsofotherfrequenciesareverylowerthanthelimitandnotshowintestreport. 4)Theamplitudeofspuriousemissionswhichareattenuatedbymorethan20dBbelowthepermissiblevalue hasnoneedtobereported. 5)Pre-scanDH5,2DH5modulation,andfoundthe2DH5modulation2402MHzwhichitisworsecasefor 30MHz-1GHz,soonlyshowthetestdataforworsecase. 6)Pre-scanDH5,2DH5modulation,andfoundthe2DH5modulationwhichitisworsecaseforabove1GHz, soonlyshowthetestdataforworsecase. Page 49 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 30MHz-1GHz Ant.Pol.Horizontal Measurement=Readinglevel+CorrectFactor Page 50 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical Measurement=Readinglevel+CorrectFactor Page 51 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Adobe1GHz Ant.Pol.Horizontal TestMode: TX2DH5Mode2402MHz Remark:Noreportfortheemissionwhichmorethan10dBbelowthe prescribedlimit. Measurement=Readinglevel+CorrectFactor Page 52 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical TestMode: TX2DH5Mode2402MHz Remark:Noreportfortheemissionwhichmorethan10dBbelowthe prescribedlimit. Measurement=Readinglevel+CorrectFactor Page 53 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Horizontal TestMode: TX2DH5Mode2441MHz Remark:Noreportfortheemissionwhichmorethan10dBbelowthe prescribedlimit. Measurement=Readinglevel+CorrectFactor Page 54 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical TestMode: TX2DH5Mode2441MHz Remark:Noreportfortheemissionwhichmorethan10dBbelowthe prescribedlimit. Measurement=Readinglevel+CorrectFactor Page 55 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Horizontal TestMode: TX2DH5Mode2480MHz Remark:Norep…

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Page 56 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. Ant.Pol.Vertical TestMode: TX2DH5Mode2480MHz Remark:Noreportfortheemissionwhichmorethan10dBbelowthe prescribedlimit. Measurement=Readinglevel+CorrectFactor Page 57 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 3.11.PseudorandomFrequencyHoppingSequence LIMIT FCCCFRTitle47Part15SubpartCSection15.247(a)(1): Frequencyhoppingsystemsshallhavehoppingchannelcarrierfrequenciesseparatedbyaminimumof 25kHzorthe20dBbandwidthofthehop-pingchannel,whicheverisgreater.Al-ternatively,frequency hoppingsystemsoperatinginthe2400–2483.5MHzbandmayhavehoppingchannelcarrierfrequencies thatareseparatedby25kHzortwo-thirdsofthe20dBbandwidthofthehoppingchannel,whicheveris greater,providedthesystemsoperatewithanoutputpowernogreaterthan125mW.Thesystemshall hoptochannelfrequenciesthatareselectedatthesystemhoppingratefromapseudorandomlyordered listofhoppingfrequencies.Eachfrequencymustbeusedequallyontheaveragebyeachtransmitter. Thesystemreceiversshallhaveinputbandwidthsthatmatchthehop-pingchannelbandwidthsoftheir cor-respondingtransmittersandshallshiftfrequenciesinsynchronizationwiththetransmittedsignals. TESTRESULTS Thepseudorandomfrequencyhoppingsequencemaybegeneratedinanice-stageshiftregisterwhose 5 th and9 th stageoutputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinput ofthefriststage.Thesequencebeginswiththefristoneof9consecutiveones,forexample:theshift registerisinitializedwithnineones. ● Numberofshiftregisterstages:9 ●Lengthofpseudo-randomsequence:29-1=511bits ● Longestsequenceofzeros:8(non-invertedsignal) Anexplameofpseudorandomfrequencyhoppingsequenceasfollows: Eachfrequencyusedequallyonetheaveragebyeachtransmitter. Thesystemreceiverhaveinputbandwidthsthatmatchthehoppingchannelbandwidthsoftheir correspondingtransmitterandshiftfrequenciesinsynchronizationwiththetransmittedsignals. Page 58 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 4.EUTTESTPHOTOS ReferencetothedocumentNo.:TestPhotos. Page 59 of 59 ReportNo.:KS2003S00020E KSIGN(Guangdong)TestingCo.,Ltd. 5.PHOTOGRAPHSOFEUTCONSTRUCTIONAL ReferencetothedocumentNo.:ExternalPhotosandInternalPhotos. **********************THEEND**********************

FCCID:2ATQ9-K2ConductedEmission RadiatedEmissions(30MHz~1000MHz) RadiatedEmissions(Above1GHz) RFConducted