2BCJV-LP20Wireless Music Streamer

RAKOIT TECHNOLOGY(SZ) CO., LTD. Covered Equipment Certification Attestation Letter 2026-01-08 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:2BCJV-LP20 RAKOIT TECHNOLOGY(SZ) CO., LTD. (“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. RAKOIT TECHNOLOGY(SZ) CO., LTD. (“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. RAKOIT TECHNOLOGY(SZ) CO., LTD. (“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-24-886andKDB986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Simon Wong Title: Sales Director Company Name: RAKOIT TECHNOLOGY(SZ) CO., LTD. Address: Fl.13th, Bldg.2B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan, Shenzhen, China Phone: +86-13510316302 E-Mail: [email protected] Date: 2026-01-08

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process : Company Name: FCC US Agent, LLC FRN: 0033402884 Contact Name: Tim Payne Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Telephone No: 708-571-3148 Email: [email protected] Applicant: Company name: RAKOIT TECHNOLOGY(SZ) CO., LTD. Product Description: Wireless Music Streamer Grantee code: 2BCJV FCC ID: 2BCJV-LP20 FRN：0034136127 Contact Name: Simon Wong Address: Fl.13th, Bldg.2B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan, Shenzhen, China Telephone No: +86-13510316302 Email: [email protected] RAKOIT TECHNOLOGY(SZ) CO., LTD. certifies that, as of the date of this filing of the application with the TCB, [FCC US Agent, LLC] is our designated US agent for service of process for the above referenced FCC ID. RAKOIT TECHNOLOGY(SZ) CO., LTD. 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 equipment. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026-01-08 Applicant’s Name: Simon Wong US Agent’s Name: Tim Payne Title: Sales DirectorTitle: Manager Signature ： Signature

RAKOIT TECHNOLOGY(SZ) CO., LTD. 2026-01-08 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: Simon Wong Title: Sales Director Company Name: RAKOIT TECHNOLOGY(SZ) CO., LTD. Address: Fl.13th, Bldg.2B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan, Shenzhen, China Phone: +86-13510316302 E-Mail: [email protected] Date: 2026-01-08

RAKOIT TECHNOLOGY(SZ) CO., LTD. 2026-01-08 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: 2BCJV-LP20 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 of180days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence beforethe 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. ExhibitType 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=41731and 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: Simon Wong Title: Sales Director Company Name: RAKOIT TECHNOLOGY(SZ) CO., LTD. Address: Fl.13th, Bldg.2B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan, Shenzhen, China Phone: +86-13510316302 E-Mail: [email protected] Date: 2026-01-08

Software Security Description – KDB 594280 D02v01r03 Section II General Description 1.Describe how any software/firmware updates for elements than can affect the device’s RF parameters will be obtained, downloaded, validated and installed. For software that is accessed through manufacturer’s website or device’s management system, describe the different levels of security as appropriate. Answered: We do not release the firmware on our website for downloading. Our direct host manufacturer (OEM) can request the firmware from us and it will be made available via secure server. 2.Describe the RF parameters that are modified by any software/firmware without any hardware changes. Are these parameters in some way limited such that any other software/firmware changes will not allow the device to exceed the authorized RF characteristics? Answered: N/A 3.Describe in detail the authentication protocols that are in place to ensure that the source of the RF-related software/firmware is valid. Describe in detail how the RF-related software is protected against modification. Answered: The firmware binary is encrypted. The process to flash a new firmware is using a secret key to decrypt the firmware, only correct decrypted firmware is stored in nonvolatile memory. 4.Describe in detail any encryption methods used to support the use of legitimate RF-related software/firmware. Answered: Self-developed encryption 5.For a device that can be configured as a master and client (with active or passive scanning), explain how the device ensures compliance for each mode? In particular if the device acts as master in some band of operation and client in another; how is compliance ensured in each band of operation? Answered: Product is set to Client model permanent, and doesn’t allow to changed. Third-Party Access Control 1.Explain if any third parties have the capability to operate a U.S.-sold device on any other regulatory domain, frequencies, or in any manner that may allow the device to operate in violation of the device’s authorization if activated in the U.S. Answered: No, third parties don’t have the capability to access and change radio parameters. US sold products are factory configured to US. 2.Describe, if the device permits third-party software or firmware installation, what mechanisms are provided by the manufacturer to permit integration of such functions while ensuring that the RF parameters of the device cannot be operated outside its authorization for operation in the U.S. In the description include what controls and/or agreements are in place with providers of third-party functionality to ensure the devices’ underlying RF parameters are unchanged and how the manufacturer verifies the functionality. Answered: N/A 2. For Certified Transmitter modular devices, describe how the module grantee ensures that host manufacturers fully comply with these software security requirements for U-NII devices. If the module is controlled through driver software loaded in the host, describe how the drivers are controlled and managed such that the modular transmitter RF parameters are not modified outside the grant of authorization. Answered: N/A Software Configuration Description – KDB 594280 D02v01r03 Section III USER CONFIGURATION GUIDE 1. Describe the user configurations permitted through the UI. If different levels of access are permitted for professional installers, system integrators or end-users, describe the differences. a. What parameters are viewable and configurable by different parties? There is no user configuration GUI. b. What parameters are accessible or modifiable by the professional installer or system integrators? (1) Are the parameters in some way limited, so that the installers will not enter parameters that exceed those authorized? There is no user configuration GUI. (2) What controls exist that the user cannot operate the device outside its authorization in the U.S.? There is no user configuration GUI. c. What parameters are accessible or modifiable by the end-user? (1) Are the parameters in some way limited, so that the installers will not enter parameters that exceed those authorized? N/A (2) What controls exist that the user cannot operate the device outside its authorization in the U.S.? N/A d. Is the country code factory set? Can it be changed in the UI? (1) If it can be changed, what controls exist to ensure that the device can only operate within its authorization in the U.S.? There is no user configuration GUI. e. What are the default parameters when the device is restarted? The country code is factory set and is never changed by UI. 2. Cantheradiobeconfiguredinbridgeormeshmode?Ifyes,anattestationmayberequired. FurtherinformationisavailableinKDBPublication905462D02. Notsupported 3. Foradevicethatcanbeconfiguredasamasterandclient(withactiveorpassivescanning),ifthis isuserconfigurable,describewhatcontrolsexist,withintheUI,toensurecomplianceforeach mode.Ifthedeviceactsasamasterinsomebandsandclientinothers,howisthisconfiguredto ensurecompliance? Notsupported 4. Foradevicethatcanbeconfiguredasdifferenttypesofaccesspoints,suchaspoint-to-pointor point-to-multipoint,andusedifferenttypesofantennas,describewhatcontrolsexisttoensure compliancewithapplicablelimitsandtheproperantennaisusedforeachmodeofoperation.(See Section15.407(a)) Notsupported FCC ID:2BCJV-LP20 <Signature> Printed name: Simon Wong Title: Sales Director Company Name: RAKOIT TECHNOLOGY(SZ) CO., LTD. Address: Fl.13th, Bldg.2B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan, Shenzhen, China Date: 2026-01-08

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E05 TRF No.: RT-4-E-006Page 1 of 7 RF EXPOSURE REPORT Applicant : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Applicant : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China Manufacturer : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Manufacturer : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China Equipment under Test : Wireless Music Streamer Model No. : LP20 FCC ID : 2BCJV-LP20 Test Standard(s) : KDB447498 D01 General RF Exposure Guidance v06 Report No. : DDT-RE25081404-3E05 Issue Date : 2026/01/14 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-RE25081404-3E05 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-RE25081404-3E05 TRF:RT-4-E-006Page 3 of 7 $!CeMetaLims!digital$ Test Report Declare Applicant : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Applicant : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China Equipment under Test : Wireless Music Streamer Model No. : LP20 Manufacturer : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Manufacturer : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China 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-RE25081404-3E05 Date of Receipt:2025/11/11Date of Test:2025/11/11~2026/01/05 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: Johnson HuangReviewed: Tiger MoApproved: Damon Hu 2026/01/062026/01/142026/01/14 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E05 TRF:RT-4-E-006Page 4 of 7 Revision History VersionRevision ContentIssue DateApproved V0Initial issue2026/01/14Damon Hu Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E05 TRF:RT-4-E-006Page 5 of 7 1. General Test Information 1.1. Description of EUT EUT Name:Wireless Music Streamer Model Number:LP20 Difference of model number:/ EUT Function Description:Please reference user manual of this device Power Supply:DC 5V/2A powered by an external AC adapter Hardware Version:V1.0 Software Version:V1.0 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 //// 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-RE25081404-3E05 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 den…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF: RT-4-E-005Page 1 of 282 RADIO TEST REPORT Applicant : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Applicant : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China Manufacturer : RAKOIT TECHNOLOGY(SZ) CO., LTD. Address of Manufacturer : Floor 13th, Building 2 Block B, Baiwang R&D Building, Baimang Community, Xili Street, Nanshan District, Shenzhen, Guangdong Province 518000, P.R.China Equipment under Test : Wireless Music Streamer Model No. : LP20 FCC ID : 2BCJV-LP20 IC : 30908-LP20 Test Standard(s) : 47 CFR Part 15 Subpart E, 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, 789033 D02 General U-NII Test Procedures New Rules v02r01, 662911 D01 Multiple Transmitter Output v02r01 Report No. : DDT-RE25081404-3E04 Issue Date : 2026/01/14 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-RE25081404-3E04 TRF: RT-4-E-005Page 2 of 282 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.........................................................................................11 2.6.Test environment conditions ......................................................................................12 2.7.Test laboratory ...........................................................................................................12 2.8.Measurement uncertainty...........................................................................................13 3.Equipment Used During Conductive Test ..................................................................14 4.26dB Bandwidth .........................................................................................................15 4.1.Block diagram of test setup ........................................................................................15 4.2.Limits ..........................................................................................................................15 4.3.Test procedure ...........................................................................................................15 4.4.Test result...................................................................................................................16 4.5.Test graphs ................................................................................................................18 5.6dB Bandwidth ...........................................................................................................40 5.1.Block diagram of test setup ........................................................................................40 5.2.Limits ..........................................................................................................................40 5.3.Test procedure ...........................................................................................................40 5.4.Test result B4 .............................................................................................................41 5.5.Test graphs B4 ...........................................................................................................42 6.99% Bandwidth ..........................................................................................................49 6.1.Block diagram of test setup ........................................................................................49 6.2.Limits ..........................................................................................................................49 6.3.Test procedure ...........................................................................................................49 6.4.Test result...................................................................................................................50 6.5.Test graphs ................................................................................................................52 7.Duty Cycle ..................................................................................................................74 7.1.Block diagram of test setup ........................................................................................74 7.2.Limit............................................................................................................................74 7.3.Test procedure ...........................................................................................................74 7.4.Test result...................................................................................................................75 7.5.Test graphs ................................................................................................................77 8.Maximum Output Power.............................................................................................98 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF: RT-4-E-005Page 3 of 282 8.1.…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 25 of 282 11N20SISO_Ant1_5720 11N20SISO_Ant1_5745 11N20SISO_Ant1_5785 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 26 of 282 11N20SISO_Ant1_5825 11N40SISO_Ant1_5190 11N40SISO_Ant1_5230 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 27 of 282 11N40SISO_Ant1_5270 11N40SISO_Ant1_5310 11N40SISO_Ant1_5510 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 28 of 282 11N40SISO_Ant1_5550 11N40SISO_Ant1_5670 11N40SISO_Ant1_5710 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 29 of 282 11N40SISO_Ant1_5755 11N40SISO_Ant1_5795 11AC20SISO_Ant1_5180 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 30 of 282 11AC20SISO_Ant1_5200 11AC20SISO_Ant1_5240 11AC20SISO_Ant1_5260 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 31 of 282 11AC20SISO_Ant1_5280 11AC20SISO_Ant1_5320 11AC20SISO_Ant1_5500 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 32 of 282 11AC20SISO_Ant1_5580 11AC20SISO_Ant1_5700 11AC20SISO_Ant1_5720 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 33 of 282 11AC20SISO_Ant1_5745 11AC20SISO_Ant1_5785 11AC20SISO_Ant1_5825 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 34 of 282 11AC40SISO_Ant1_5190 11AC40SISO_Ant1_5230 11AC40SISO_Ant1_5270 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 35 of 282 11AC40SISO_Ant1_5310 11AC40SISO_Ant1_5510 11AC40SISO_Ant1_5550 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 36 of 282 11AC40SISO_Ant1_5670 11AC40SISO_Ant1_5710 11AC40SISO_Ant1_5755 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 37 of 282 11AC40SISO_Ant1_5795 11AC80SISO_Ant1_5210 11AC80SISO_Ant1_5290 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 38 of 282 11AC80SISO_Ant1_5530 11AC80SISO_Ant1_5610 11AC80SISO_Ant1_5690 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 39 of 282 11AC80SISO_Ant1_5775 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 40 of 282 5. 6dB Bandwidth 5.1. Block diagram of test setup 5.2. Limits FCC Part15, Subpart E/ RSS-247 Test ItemLimit Frequency Range (MHz) 6 dB BandwidthMinimum 500 kHz 5725 - 5850 5.3. Test procedure Connect EUT’s antenna output to spectrum analyzer by RF cable. Center FrequencyThe center frequency of the channel under test DetectorPeak RBW For 6 dB Bandwidth: RBW=100 kHz For 26 dB Bandwidth: approximately 1% of the emission bandwidth. VBW For 6 dB Bandwidth: VBW=300 kHz For 26 dB Bandwidth: >3 RBW TraceMax hold SweepAuto couple Allow the trace to stabilize, measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. Appendix A3: Min emission bandwidth Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25081404-3E04 TRF:RT-4-E-005Page 41 of 282 5.4. Test result B4 Test Engineer:TyangTest Site:RF Measurement System 4# Ambient Condition: 25.6°C,49.8%RH Test Date:2025.12.6-2025.12.31 Test Power Supply: AC 120V/60HzSample Number:S25081404-004 Test ModeAntennaFrequency[MHz]6db EBW [MHz]FL[MHz]FH[MHz]Limit[MHz] Verdic t 572015.165712.365727.52------ 5720_UNII-2C12.645712.365725------ 5720_UNII-32.5257255727.520.5PASS 574515.125737.365752.480.5PASS 578515.125777.405792.520.5PASS 11AAnt1 582515.125817.405832.520.5PASS 572015.125712.405727.52------ 5720_UNII-2C12.65712.405725------ 5720_UNII-32.5257255727.520.5PASS 574515.125737.405752.520.5PASS 578515.125777.405792.520.5PASS 11N20SISOAnt1 582515.125817.405832.520.5PASS 571035.125692.405727.52------ 5710_UNII-2C32.65692.405725------ 5710_UNII-32.5257255727.520.5PASS 575535.045737.485772.520.5PASS 11N40SISOAnt1 579535.045777.485812.520.5PASS 572015.125712.365727.48------ 5720_UNII-2C12.645712.365725------ 5720_UNII-32.4857255727.480.5PASS 574515.085737.405752.480.5PASS 578515.125777.405792.520.5PASS 11AC20SIS O Ant1 582515.125817.40583…

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