APICOVEM1Wireless Speaker

Harman International Industries, Inc Covered Equipment Certification Attestation Letter 2026-05-06 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:APICOVEM1 Harman International Industries, Inc (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Harman International Industries, Inc (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Harman International Industries, Inc (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2026-05-06

Harman International Industries, Inc U.S. Agent Designation for Service of Process - Certification Attestation Letter Harman International Industries, Inc 8500 Balboa Boulevard, Northridge, CA 91329, United States Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA 2026-05-06 Attestation Statement according to 2.911(d)(7) FCC ID: APICOVEM1 TO WHOM IT MAY CONCERN: We, Harman International Industries, Inc designate ourselves to act as U.S. agent for service of process. Harman International Industries, Inc hereby acknowledges the obligation of the U.S. agent for service of process. Further Harman International Industries, Inc accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Sincerely Applicant Signed/ Designated Agent Signed: Signature: Company name: Harman International Industries, Inc FRN: 0024748147 Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Contact Person: Terry Shi Telephone No: 86-75523189391 Email: [email protected]

Harman International Industries, Inc 2026-05-06 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Damon Hu, Guangdong Dongdian Testing Service Co.,Ltd.( Unit 2, Building 1, No.17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808), to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2026-05-06

Harman International Industries, Inc 2026-05-06 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: APICOVEM1 Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☐ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2026-05-06

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF No.: RT-4-E-006Page 1 of 7 RF EXPOSURE REPORT Applicant : Harman International Industries, Inc. Address of Applicant : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Manufacturer : Harman International Industries, Inc. Address of Manufacturer : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Equipment under Test : Wireless Speaker Model No. : COVE M1 FCC ID : APICOVEM1 Test Standard(s) : KDB447498 D01 General RF Exposure Guidance v06 Report No. : DDT-RE26030303-2E05 Issue Date : 2026/05/14 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF No.: RT-4-E-006Page 2 of 7 Table of Contents 1.General Test Information..............................................................................................5 1.1.Description of EUT .......................................................................................................5 1.2.Accessories of EUT......................................................................................................5 1.3.Test laboratory .............................................................................................................5 2.RF Exposure evaluation for FCC .................................................................................6 2.1.Assessment procedure.................................................................................................6 2.2.Assess result ................................................................................................................7 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF:RT-4-E-006Page 3 of 7 $!CeMetaLims!digital$ Test Report Declare Applicant : Harman International Industries, Inc. Address of Applicant : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Equipment under Test : Wireless Speaker Model No. : COVE M1 Manufacturer : Harman International Industries, Inc. Address of Manufacturer : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Test Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is tested by Guangdong Dongdian Testing Service Co., Ltd. and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and Guangdong Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these tests. Report No.:DDT-RE26030303-2E05 Date of Receipt:2026/03/03Date of Test:2026/03/03~2026/04/30 Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Guangdong Dongdian Testing Service Co., Ltd. Created: Zoe PengReviewed: Chen Ziqin Approved: Ella Gong 2026/04/302026/05/142026/05/14 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF:RT-4-E-006Page 4 of 7 Revision History VersionRevision ContentIssue DateApproved V0Initial issue2026/05/14Ella Gong Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF:RT-4-E-006Page 5 of 7 1. General Test Information 1.1. Description of EUT EUT Name:Wireless Speaker Model Number:COVE M1 Difference of model number ： / EUT Function Description:Please reference user manual of this device Power Supply:AC 100-240V~, 50/60Hz, 18W Hardware Version:V1.0 Software Version:26.11.51.30.10 Note: The above EUT information is declared by manufacturer and for more detailed features description please refer to the manufacturer's specifications or User's Manual. 1.2. Accessories of EUT AccessoriesManufacturerModel numberDescription AC cableHarmanN/AN/A 1.3. Test laboratory Guangdong Dongdian Testing Service Co., Ltd. Add.: Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, 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-20240, G-20118 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF:RT-4-E-006Page 6 of 7 2. RF Exposure evaluation for FCC 2.1. Assessment procedure 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 Frequency Range （MHz） Electric Field Strength (E) (V/m) Magnetic FieldStrength (H) （A/m） Power Density (S) （mW/cm 2 ） Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.346141.63(100)*30 1.34-30824/f2.19/f(180/f)*30 30-30027.50.0730.230 300-1500 F/150030 1500-100000 1.030 Note: f= frequency in MHz; *Plane-wave equivalent power density 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. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E05 TRF:RT-4-E-006Page 7 of 7 2.2. Assess result Mode Output power (dBm) Output power (mW) Tune up power (dBm) Tune up power (mW) Antenna Gain (dBi) Antenna Gain (linear) MPE Values (mW/cm 2 ) MPE Limit (mW/cm 2 ) BT11.8715.3812.517.781.921.5560.00551…

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QR/RD-P01-06B SPECIFICATION 深圳市大显科技有限公司 ShenzhenDaxianTechnologyCo.,Ltd. 中山悦辰 COVEM1 BT天线组件 RichsoundCOVEM1Antennaassembly 产品规格书 ProductSpecification 客户 connection 中山悦辰 Richsound 频段 frequencyrange 2400~2500MHz 项目名称 entryname COVEM1 版本 edition V04 物料编号 MaterialNo 1C-OVEM1-173 颜色 Color 黑色+白色 Black+White 客户料号 CustomerItem Number 101000836 RF设计 RFDesign 沈川 Chuan.Shen 结构设计 StructuralDesign 周锐斌 RuiBin.Zhou 品质经理 QualityManager 李崇瑞 ChongRui.Li 技术总监 TechnicalDirector 张磊 Lei.Zhang 日期 Date 2026-01-27 深圳市大显科技有限公司 ShenzhenDaxianTechnologyCo.,Ltd. 深圳市龙岗区布吉镇吉华路513号上水径村（国防培训基地 对面）达成工业园综合楼7楼 TEL:0755-28576002 FAX:0755-84276383 上海分部：上海市张江高科技园区集成电路产业区龙东大道 3000号8号楼201室 TEL:021-61630552 FAX:755-84276383 BujiTown,LonggangDistrict,Shenzhen,ChinaJihuaRoad513, ShangshuijingVillage(oppositethenationaldefense trainingbase)DachengIndustrialPark,Building7。 TEL:0755-28576002 FAX:0755-84276383 Room201,Building8,LongDongRoad3000#,SemiconductorIndustry Park,ZhangJiangHitechZone,ShangHai TEL:021-61630552 FAX:755-84276383 客户确认： Customerconfirmation: 装配是否符合贵司要求：□OK□NG Whethertheassemblymeetsyourcompany'srequirements：□OK□NG ConfidentialInformation www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page2 变更履历 Revisionhistory 版本号 Versionnumber 变更内容 Changecontent 变更理由 Reasonforchange 发起变更方 Originating Party 日期 Date 修改人 Modifiedby V1.0 创建 found 2025-12-31 V2.0 更新 modif 图纸增加序列号,包棉 方式及长度更新 Addserialnumbersto drawings;update cottonwrapping methodandlength. DX2026-01-27 ConfidentialInformation www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page3 索引 Indexes 一、项目说明ProjectDescription...................................................................................................................4 二、BT天线antenna..................................................................................................................4 1、规格specifications.................................................................................................4 1.1电气规格标准Electricalspecificationsandstandards........................................................5 1.1.1电性能指标Electricalperformanceindex................................................................5 1.1.2天线位置图片Antennapositionpicture...................................................................5 1.2结构规格标准Structuralspecificationsandstandards....................................................5 1.2.1天线组成Antennacomposition.............................................................................5 2、测试环境testingenvironment............................................................................................6 3、测试test.....................................................................................................................7 3.1驻波(VSWR)的测试Testofstandingwave(VSWR)........................................................7 3.1.1测试连接Testconnection.......................................................................................7 3.2效率、功率（TRP）、灵敏度（TIS）的测试Testingofefficiency,power(TRP),sensitivity(TIS)..................7 3.2.1测试的场地Testsite..............................................................................................7 3.2.2测试的仪表TestedInstruments..............................................................................7 3.2.3测试数据testdata.................................................................................................7 4、VSWR参数图Parameterdiagram...................................................................................................8-9 5、无源场型图Passivefieldpatterndiagram...........................................................................................10 6、结论conclusion.............................................................................................................................................10 三、工程图scheduledrawing..............................................................................................11 ConfidentialInformation www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page4 一项目说明ProjectDescription 客户名： CustomerName： 中山悦辰 Richsound 整机类型： Typeofcomplete machine： 音箱 loudspeakerbox 天线频段： Antennaband： 2400~2500MHz 天线形式： Antennaform： FPC+同轴线+线材海绵 FPC+coaxialline+wiresponge FPC+同轴线+线材海绵 FPC+coaxialline+wiresponge 馈电形式： Feedform： 焊接 weld 硬件版本： Hardwareversion： / 二BT天线组件Antennaassembly 1规格specifications 本报告主要提供COVEM1项目天线的各项电气和结构性能参数的测试状况。下图为大显设 计的天线图片。 Thisreportmainlyprovidesthetestingstatusofvariouselectricalandstructuralperformance parametersoftheantennafortheCOVEM1project.Thefollowingimageshowsanantennawitha largedisplaydesign. 天线外观图 antennaappearingdiagram ConfidentialInformation www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page5 1.1电气规格标准Electricalspecificationsandstandards 1.1.1电性能指标Electricalperformanceindex 天线工作频段在2400~2500MHz。下表是大显设计和量产天线的电性能的指标. Theoperatingfrequencybandoftheantennaisbetween2400and2500MHz.Thefollowingtable showstheelectricalperformanceindicatorsoflargedisplaydesignandmassproductionantennas. FrequencyRangeFrequency(MHz)VSWR BT2400~2500≤2 1.1.2天线位置图片Antennapositionpicture 2结构规格标准Structuralspecificationsandstandards 1.2.1天线组成Antennacomposition 天线主要是由FPC…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF: RT-4-E-005Page 1 of 100 RADIO TEST REPORT Applicant : Harman International Industries, Inc. Address of Applicant : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Manufacturer : Harman International Industries, Inc. Address of Manufacturer : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Equipment under Test : Wireless Speaker Model No. : COVE M1 FCC ID : APICOVEM1 IC : 6132A-COVEM1 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10-2020, RSS-247 Issue 4 July 24, 2025, RSS-Gen Issue 5, Apr. 2018, Amendment 2 (February 2021), ANSI C63.10-2020+Cor.1-2023+C63.10a- 2024+Errata to C63.10a-2024 Report No. : DDT-RE26030303-2E01 Issue Date : 2026/05/12 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF: RT-4-E-005Page 2 of 100 Table of Contents 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.Block diagram of EUT configuration for test.................................................................9 2.4.Decision of final test mode ...........................................................................................9 2.5.Deviations of test standard.........................................................................................10 2.6.Test environment conditions ......................................................................................10 2.7.Test laboratory ...........................................................................................................11 2.8.Measurement uncertainty...........................................................................................12 3.Equipment Used During Conductive Test ..................................................................13 4.20 dB Bandwidth ........................................................................................................14 4.1.Block diagram of test setup ........................................................................................14 4.2.Limits ..........................................................................................................................14 4.3.Test procedure ...........................................................................................................14 4.4.Test result...................................................................................................................15 4.5.Test graphs ................................................................................................................16 5.99% Bandwidth ..........................................................................................................19 5.1.Block diagram of test setup ........................................................................................19 5.2.Limits ..........................................................................................................................19 5.3.Test procedure ...........................................................................................................19 5.4.Test result...................................................................................................................20 5.5.Test graphs ................................................................................................................21 6.Maximum Peak Output Power....................................................................................24 6.1.Block diagram of test setup ........................................................................................24 6.2.Limits ..........................................................................................................................24 6.3.Test procedure ...........................................................................................................24 6.4.Test result...................................................................................................................25 6.5.Test graphs ................................................................................................................26 7.Carrier Frequency Separation ....................................................................................29 7.1.Block diagram of test setup ........................................................................................29 7.2.Limits ..........................................................................................................................29 7.3.Test procedure ...........................................................................................................29 7.4.Test result...................................................................................................................30 7.5.Test graphs ................................................................................................................31 8.Dwell Time..................................................................................................................32 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF: RT-4-E-005Page 3 of 100 8.1.Block diagram of test setup ........................................................................................32 8.2.Limits ..........................................................................................................................32 8.3.Test procedu…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 51 of 100 11.5. Test graphs DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 52 of 100 DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 53 of 100 DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 54 of 100 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 55 of 100 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 56 of 100 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 3DH5_Ant1_2402_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 57 of 100 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 58 of 100 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 3DH5_Ant1_2480_0~Reference Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 59 of 100 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 60 of 100 12. Duty cycle 12.1. Block diagram of test setup 12.2. Limit Just for Report. 12.3. Test procedure (1) Connected the EUT’s antenna port to the Spectrum Analyzer by suitable attenuator, The cable loss and attenuator loss have been put into spectrum analyzer as amplitude offset. set the Spectrum Analyzer as below: Centre Frequency: The centre frequency of the middle hopping channel. Resolution BW: 10 MHz. Video BW: 10 MHz. Span: Zero span. Detector: Peak. Trace Mode: Clear Write. Sweep: Video Trigger (2) When the trace is complete, measure the sending time of 1 burst and the duty cycle of 1 burst cycle. (3) Calculate dwell time follow below formula: Duty cycle= Pulse’s on time / Burst cycleAppendix I: Duty Cycle Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 61 of 100 12.4. Test result Test Engineer:Zeng ZhongyaoTest Site:RF Measurement System 3# Ambient Condition: 25.4°C,42.9%RH Test Date:2026.03.04 Test Power Supply: AC 100-240V,~50/60HZSample Number:S26030303-005 Test ModeAntenna Frequency [MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] 24022.885.0057.602.40 24412.885.0057.602.40 DH5Ant1 24802.885.0057.602.40 24022.895.0057.802.38 24412.885.0157.492.40 2DH5Ant1 24802.895.0257.572.40 24022.895.0057.802.38 24412.885.0157.492.40 3DH5Ant1 24802.895.0257.572.40 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 62 of 100 12.5. Test graphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 63 of 100 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 64 of 100 3DH5_Ant1_2441 3DH5_Ant1_2480 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26030303-2E01 TRF:RT-4-E-005Page 65 of 100 13. Antenna Requirements 13.1. Limit For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247 (b), if transmitting antennas of directional gain greater than 6 dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. For intentional device, according to RSS-Gen issue 5 section 6.8. The applicant for equipment certification shall provide a list of all antenna types that may be used with the transmitter, where applicable (i.e. for transmitters with detachable antenna), indicating the maximum permissible antenna gain (in dBi) and the required impedance for each antenna. The test report shall demonstrate the compliance of the transmitter with the limit for maximum equivalent isotropically radiated power (e.i.r.p.) specified in the applicable RSS, when the transmitter is equipped with an…

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