PIBB16Premium Desktop Audio Amplifier

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:AudioengineLLC FRN:0021991005 ContactName:MikeYe Address:304ProgressDrive,Sherman,TX75092UnitedStates TelephoneNo:(805)407-8548 Email:[email protected] Applicant: Companyname:AudioengineLLC ProductDescription:PremiumDesktopAudioAmplifier Granteecode:PIB FCCID:PIBB16 ContactName:MikeYe Address:304ProgressDrive,Sherman,TX75092UnitedStates TelephoneNo:(805)407-8548 Email:[email protected] [AudioengineLLC]certifiesthat,asofthedateofthisfilingoftheapplicationwiththeTCB, [AudioengineLLC]isourdesignatedUSagentforserviceofprocessfortheabovereferenced FCCID.[AudioengineLLC]acceptstomaintainanagentfornolessthanoneyearafterthe granteehasterminatedallmarketingandimportationortheconclusionofanycommission relatedproceedinginvolvingequipment.[AudioengineLLC]accepts,asofthedateofthefiling oftheapplication,theobligationofthedesignatedUSagentforserviceofprocessforthe abovereferenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2023/06/15 Applicant’sName:MikeYeApplicant’sName:MikeYe Title:ProjectManagerTitle:ProjectManager Signature:Signature:

C5266091_X24_Ed.2 1/1 “AttestationStatements” TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 TheCommissionadoptedrulesthatprohibitequipmentauthorizationfor“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentified ontheCommission’sCoveredList 1 ,whichisperiodicallyupdated.SeetheCoveredListformore details.ThisAttestationStatementistoconfirmthatwefollowtheSection2.911(d)(5)(i)-(ii) Applicant Companyname:AudioengineLLC Granteecode:PIB FCCID:PIBB16 ContactName:MikeYe Address:304ProgressDrive,Sherman,TX75092UnitedStates TelephoneNo:(805)407-8548 Email:[email protected] i.AudioengineLLC(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules.The applicantmustsignthiscertification. ii.AudioengineLLC(“theapplicant”)certifiesthat,asofthedateofthefilingof theapplication,theapplicantisnot(asaspecificallynamedentityoranyof itssubsidiariesoraffiliates)identifiedontheCoveredListasanentity producing“covered”equipment.Theapplicantmustsignthiscertification. AudioengineLLC(“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredListasanentityproducing“covered”equipment. Date:2023/06/15 Applicant’sName:MikeYe Title:ProjectManager Signature 1 TheCommission’sCoveredListispublishedbythePublicSafetyandHomelandSecurityBureauandpostedonthe Commission’swebsite.ThisCoveredList,whichisperiodicallyupdated,identifiesparticularequipment,producedby particularentities,thatconstitutes“covered”equipment.https://www.fcc.gov/supplychain/coveredlist

C5266091_X8_Ed.1 1/1 LetterofAuthorization AudioengineLLC Company:AudioengineLLC Address:304ProgressDrive,Sherman,TX75092UnitedStates ProductName:PremiumDesktopAudioAmplifier ModelNumber:N22 FCCIdentifier:PIBB16 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:MikeYeDate:2023/06/25 Title:ProjectManager Signatureofapplicant:

C5266091_X10_Ed.1 1/1 AudioengineLLC OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2023/06/25 Subject:RequestforConfidentiality FCCID:PIBB16 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotos PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselectedabove arewithheldfrompublicviewforaperiodof_180_daysfromthedateoftheGrantof EquipmentAuthorizationandpriortomarketing. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Signature: Name:MikeYe Title:ProjectManager

AudioengineLLC 304ProgressDrive,Sherman,TX75092UnitedStates DATE:06/25/2023 AudioengineLLC 304ProgressDrive,Sherman,TX75092UnitedStates Attn:DirectorofCertification AuthoritytoActasAgent Onourbehalf,Iappointbelowcompanyandperson: NameDamonHu PositionManager CompanyNameDongguanDongdianTestingServiceCo.,Ltd. Address17,ZongbuRoad2,SongshanLakeSci&Tech,IndustryPark, DongguanCity,GuangdongProvince,China,523808 Tel/Fax Tel:+86-0769-38826678-850 [email protected] toactasouragentinthepreparationofthisapplicationforequipmentcertification.I certifythatsubmitteddocumentsproperlydescribethedeviceorsystemforwhich equipmentcertificationissought.Ialsocertifythateachunitmanufactured,importedor marketed,asdefinedintheFederalCommunicationsCommission’sregulationswill haveaffixedtoitalabelidenticaltothatsubmittedforapprovalwiththisapplication. ApplicantnameAudioengineLLC Address304ProgressDrive,Sherman,TX75092UnitedStates Yourssincerely, Signatory NameMikeYe PositionProjectManager CompanyNameAudioengineLLC Address304ProgressDrive,Sherman,TX75092UnitedStates Tel(805)407-8548 [email protected]

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 1 of 10 AppendixI: Photos of the EUT Product Name : Premium Desktop Audio Amplifier Model Number : N22 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 2 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 3 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 4 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 5 of 10

N22.2 REAR PANEL SILKSCREEN MARCH, 2023 - V05 Paint color: Black Ink color: Pantone 427C

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 6 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 7 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 8 of 10 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 9 of 10 BT ANT. Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q22120615-1E Page 10 of 10 END

Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 1 of 7 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Audioengine LLC Address : 304 Progress Drive, Sherman, TX 75092 United States Equipment under Test : Premium Desktop Audio Amplifier Model No. : N22 Trade Mark : Audioengine FCC ID : PIBB16 Manufacturer : DongGuan Evervictory Electronic Co.,Ltd Address : Chu-chi District, Hu-Men Town, DongGuan City, GuangDong Province, China Report No.: DDT-RE22120615-2E07 Issued Date: Jun. 06, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 2 of 7 Table of Contents Test report declares.......................................................................................................3 1. General Information ....................................................................................................... 5 1.1. Description of equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure Evaluation ................................................................................................ 6 2.1. Requirement ................................................................................................................... 6 2.2. Calculation method ........................................................................................................ 6 2.3. Estimation result ............................................................................................................. 7 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 3 of 7 Test Report Declare Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd. and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Dongguan Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No: DDT-RE22120615-2E07 Date of Receipt: Mar. 01, 2023 Date of Test: Mar. 01, 2023 ~ Jun. 06, 2023 Prepared By: Approved By: ____________________ ______________________ Johnny Wang/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : Audioengine LLC Address : 304 Progress Drive, Sherman, TX 75092 United States Equipment under Test : Premium Desktop Audio Amplifier Model No. : N22 Trade mark : Audioengine Manufacturer : DongGuan Evervictory Electronic Co.,Ltd Address : Chu-chi District, Hu-Men Town, DongGuan City, GuangDong Province, China E S T T I N N A I G D S G E N R O V D I C E N A C U O G . , G L N T O D D . Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 4 of 7 Revision History Rev. Revisions Issue Date Revised By --- Initial issue Jun. 06, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 5 of 7 1. General Information 1.1. Description of equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808. Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20155, G-20118 EUT Name : Premium Desktop Audio Amplifier Model Number : N22 EUT Function Description : Please reference user manual of this device Power Supply : AC 100-240V~ 50/60Hz 1.5A Radio Specification : Bluetooth V5.0 Operation Frequency : 2402 MHz - 2480 MHz Modulation : GFSK, /4-DQPSK, 8DPSK Data Rate : 1 Mbps, 2 Mbps, 3 Mbps Antenna : Inverted F Antenna, maximum PK gain: 3.3 dBi Sample Number : S22120615-005 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 6 of 7 2. RF Exposure Evaluation 2.1. Requirement Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2 m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. Limits for General Population/Uncontrolled Exposure 2.2. Calculation method From the peak EUT RF output power, the minimum mobile separation distance, d= 0.2 m, as well as the gain of the used antenna, the RF power density can be obtained. Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E07 Page 7 of 7 2.3. Estimation result Mode PK Output power (dBm) Output power (mW) tune up power (dBm) Antenna Gain (dBi) Antenna Gain (linear) MPE Values (mW/cm 2 ) MPE Limit (mW/cm 2 ) BT 10.15 10.35 12 3.3 2.14 0.00674 1 Note: The estimation distance is 20 cm Conclusion: The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. END OF REPORT

2.4 GHz Inverted F Antenna Keywords •PCB Antenna •2.4 GHz to be +3.3 dB and overall size requirements for this antenna are 25.7 x 7.5 mm. Thus, this is a compact, low cost 1 Introduction This document describes a PCB antenna design that can be used with all 2.4 GHz transceivers and transmitters from Texas Instruments. Maximum gain is •Inverted F Antenna measured and high performance antenna. SWRU120B Page 1 of 14 Test Lab Texas Instruments Incorporated Manufactory Shenzhen Lianchuang Electronics Ltd. Table of Contents KEYWORDS..............................................................................................................................1 1 INTRODUCTION.............................................................................................................1 2 ABBREVIATIONS...........................................................................................................2 3 DESCRIPTION OF THE INVERTED F ANTENNA DESIGN.........................................3 3.1 IMPLEMENTATION OF THE INVERTED F ANTENNA..........................................................3 4 RESULTS........................................................................................................................4 4.1 RADIATION PATTERN..................................................................................................4 4.2 REFLECTION............................................................................................................11 4.3 BANDWIDTH.............................................................................................................11 5 CONCLUSION..............................................................................................................12 6 REFERENCES..............................................................................................................13 7 GENERAL INFORMATION..........................................................................................14 7.1 DOCUMENT HISTORY................................................................................................14 2 Abbreviations CC2480 Z-Accel ZigBee Processor EM Evaluation Module IFA Inverted F Antenna ISM Industrial, Scientific, Medical PCB Printed Circuit Board SWRU120B Page 2 of 14 3 Description of the Inverted F Antenna Design Since the impedance of the Inverted F Antenna is matched directly to 50 ohm no external matching components are needed. 3.1 Implementation of the Inverted F Antenna It is important to make an exact copy of the antenna dimensions to obtain optimum performance. The easiest approach to implement the antenna in a PCB CAD tool is to import the antenna layout from either a gerber or DXF file. Such files are included in CC2430DB reference design [1]. The gerber file is called “Inverted_F_Antenna.spl” and the DXF file is called “Inverted_F_Antenna.dxf”. If the antenna is implemented on a PCB that is wider than the antenna it is important to avoid placing components or having a ground plane close to the end points of the antenna. If the CAD tool being used doesn’t support import of gerber or DXF files, Figure 1 and Table 1 can be used. Figure 1. IFA Dimensions H1 5.70 mmW2 0.46 mm H2 0.74 mmL1 25.58 mm H3 1.29 mmL2 16.40 mm H4 2.21 mmL3 2.18 mm H5 0.66 mmL4 4.80 mm H6 1.21 mmL5 1.00 mm H7 0.80 mmL6 1.00 mm H8 1.80 mmL7 3.20 mm H9 0.61 mmL8 0.45 mm W1 1.21 mm Table 1. IFA Dimensions Since there is no ground plane beneath the antenna, PCB thickness will have little effect on the performance. The results presented in this design note are based on an antenna implemented on a PCB with 1 mm thickness. SWRU120B Page 3 of 14 4 Results All results presented in this chapter are based on measurements performed with CC2430DB [1]. 4.1 Radiation Pattern Figure 2 shows how to relate all the radiation patterns to the orientation of the antenna. The radiation patterns were measured with CC2430 programmed to 0 dBm output power. XY plane XZ plane YZ plane Figure 2. How to Relate the Antenna to the Radiation Patterns SWRU120B Page 4 of 14 Figure 3. XY Plane Vertical Polarization SWRU120B Page 5 of 14 Figure 4. XY Plane Horizontal Polarization SWRU120B Page 6 of 14 Figure 5. XZ Plane Vertical Polarization SWRU120B Page 7 of 14 Figure 6. XZ Plane Horizontal Polarization SWRU120B Page 8 of 14 Figure 7. YZ Plane Vertical Polarization SWRU120B Page 9 of 14 Figure 8. YZ Plane Horizontal Polarization SWRU120B Page 10 of 14 4.2 Reflection Figure 9. Measured Reflection at the Feed Point of the Antenna Figure 9 show that the IFA ensures less than 10 % reflection of the available power for a bandwidth of more than 300 MHz. A large bandwidth makes the antenna less sensitive to detuning due to plastic encapsulation or other objects in the vicinity of the antenna. 4.3 Bandwidth Another way of measuring the bandwidth after the antenna is implemented on a PCB and connected to a transmitter is to write test software that steps a carrier across the frequency band of interest. By using the “Max hold” function on a spectrum analyzer the variation in output power across frequency can easily be measured. Figure 10 shows how the output power varies on the IFA when the PCB is horizontally oriented and the receiving antenna has horizontal polarization. This measurement was not performed in an anechoic chamber thus the graph shows only the relative variation for the given frequency band. SWRU120B Page 11 of 14 Bandwidth IFA 2.4 2.4835 -60 -50 -40 -30 -20 -10 0 2.22.32.42.52.62.72.8 Frequency [GHz] R e l a ti v e output pow e r [dB ] Output power Lower band edge Upper band edge Figure 10. Bandwidth of IFA 5 Conclusion The PCB antenna presented in this document performs well for all frequencies in the 2.4 GHz ISM band. Except for two narrow dips, the antenna has an omni directional radiation pattern in the plane of the PCB. These properties will ensure stable performance regardless of operating frequency and positioning of the antenna. Table 2 lists the most important properties…

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

Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 1 of 94 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Audioengine LLC Address : 304 Progress Drive, Sherman, TX 75092 United States Equipment under Test : Premium Desktop Audio Amplifier Model No. : N22 Trade Mark : Audioengine FCC ID : PIBB16 Manufacturer : DongGuan Evervictory Electronic Co.,Ltd Address : Chu-chi District, Hu-Men Town, DongGuan City, GuangDong Province, China Report No.:DDT-RE22120615-2E01 Issued Date: Jun. 06, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 2 of 94 Table of Contents Test report declares.......................................................................................................4 1. Summary of Test Results ............................................................................................... 7 2. General Test Information ............................................................................................... 8 2.1. Description of EUT ......................................................................................................... 8 2.2. Accessories of EUT ........................................................................................................ 9 2.3. Assistant equipment used for test .................................................................................. 9 2.4. Block diagram of EUT configuration for test .................................................................. 9 2.5. Deviations of test standard............................................................................................. 9 2.6. Test environment conditions ........................................................................................ 10 2.7. Test laboratory ............................................................................................................. 10 2.8. Measurement uncertainty ............................................................................................. 10 3. Equipment Used During Test ....................................................................................... 11 4. 20 dB Bandwidth .......................................................................................................... 13 4.1. Block diagram of test setup .......................................................................................... 13 4.2. Limits ............................................................................................................................ 13 4.3. Test procedure ............................................................................................................. 13 4.4. test result ...................................................................................................................... 13 4.5. Test graphs .................................................................................................................. 14 5. 99% Bandwidth ............................................................................................................ 17 5.1. Block diagram of test setup .......................................................................................... 17 5.2. Limits ............................................................................................................................ 17 5.3. Test procedure ............................................................................................................. 17 5.4. Test Result ................................................................................................................... 17 5.5. Test Graphs .................................................................................................................. 18 6. Maximum Peak Output Power ..................................................................................... 21 6.1. Block diagram of test setup .......................................................................................... 21 6.2. Limits ............................................................................................................................ 21 6.3. Test procedure ............................................................................................................. 21 6.4. Test Result Peak .......................................................................................................... 22 6.5. Test graphs .................................................................................................................. 22 7. Carrier Frequency Separation ...................................................................................... 26 7.1. Block diagram of test setup .......................................................................................... 26 7.2. Limits ............................................................................................................................ 26 7.3. Test procedure ............................................................................................................. 26 7.4. Test result ..................................................................................................................... 27 7.5. Test graphs .................................................................................................................. 27 8. Dwell Time .................................................................................................................... 29 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 3 of 94 8.1. Block diagram of test setup ..................................................................................…

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

Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 41 of 94 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 42 of 94 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 43 of 94 3DH5_Ant1_High_2480 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 44 of 94 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 45 of 94 11. RF Conducted Spurious Emissions 11.1. Block diagram of test setup 11.2. Limits In any 100 kHz bandwidth outside the frequency bands in which the spread spectrum intentional radiator in operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power. 11.3. Test procedure (1) Connect EUT’s antenna output to spectrum analyzer by RF cable. (2) Establish a reference level by using the following procedure: Center frequency Test frequency RBW: 100 kHz VBW: 300 kHz Span Wide enough to capture the peak level of the in- band emission Detector Mode: Peak Sweep time: Auto Trace mode Max hold (3) Allow the trace to stabilize, use the peak marker function to determine the maximum peak power level to establish the reference level. (4) Set the spectrum analyzer as follows: RBW: 100 kHz VBW: 300 kHz Span Encompass frequency range to be measured Number of measurement points ≥span/RBW Detector Mode: Peak Sweep time: Auto Trace mode Max hold Allow the trace to stabilize, use the peak marker function to determine the maximum amplitude of all unwanted emissions outside of the authorized frequency band Appendix H: Conducted Spurious Emission Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 46 of 94 11.4. Test result Mode Freq. (MHz) Verdict GFSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass /4-DQPSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass 8DPSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass 11.5. Test graphs DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 47 of 94 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 48 of 94 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 49 of 94 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 50 of 94 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 51 of 94 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 52 of 94 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 53 of 94 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 54 of 94 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE22120615-2E01 TRF No.: FCC Part 15C BT Ver.1.0 Page 55 of 94 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-R…

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