A3LRF4451D-70ARRU(RF4451d)

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Model Number : RF4451d-70A To whom it may it concern: I hereby appoint Jongin Kim to sign letters and applications for any filings with regulatory agencies on our behalf, and to receive and exchange data between our company, the agents company and the agency in connection with certification for any products that our company owns or manufactures. Sincerely, ---------------------------------------------------- Jenni, Chun / General Manager Samsung Electronics America, Inc. Address: 19 Chapin Rd., Building D Pine Brook, NJ 07058 Tel: 1-973-808-6375 Date: July 19, 2022

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Date: July 19, 2022 Application Examiner / Reviewing Engineer Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: A3LRF4451D-70A To whom it may concern: We, the unders igne d, hereby authorize < Element Materials Technology Washington DC LLC >, to act on our beha lf in all mann ers relating to application for equipment authorization, including signing of all documents re lating to these matters . Any and all acts c arri ed out by < Element Materials Technology Washington DC LLC > on our behalf sha ll have t he s ame e ffect as a cts of our own. We, the unders igne d, hereby certify that we a re not subject to a denial of fede ra l benefits , that includes FCC benefits, pursua nt to Section 5301 of the A nt i-Drug Abuse A ct of 1988, 21 U.S .C. 853(a). In authorizing < Element Materials Technology Washington DC LLC > as our agent, we s till re cog nize that we a re r esponsible to: a) comply with the r elevant provisions of the certification progra m; b) make all necessary arrang ements f or the c on duct of the e valuation, including provision for exa mining documentation and access to all a reas, records (i nc luding interna l audit reports) and pers onnel f or the p urpos es of evaluation (e.g . testing, inspection, assessment, surveillance, reassessment) and resol ution of complaints; c) make claims regarding certif ication only in respect of the s cope f or which certification has been gra nted; d) do not use our product c ertif ication in suc h a mann er as to bring the C ert ification Division into disrepute a nd not make any statement re garding our produc t certification which the Certif ication Div ision may consider misleading or unauthorized; e) upon sus pe ns ion or canc ellation of certification, discontinue use of all adv ert ising matte r that contains any re fere nce thereto and return any ce rt ification documents as required by the Cert ification Division; f) us e certif ication only to indicate the products are certif ied as b eing in conformity with specified standards; g) endeavor to ens ure that no certificate or report nor any pa rt thereof is used in a misleading manne r; h) ens ure t hat any refere nc e t o our product c ert ification in communication media suc h as documents, brochures or adv ert ising, c omplies with the requ irements of the Certif ication Division; i) keep a record of all complaints made known to the u s relating to the product’s compliance with requ irements of the r elevant standard and to make t hese r ecords available to the Cert ification Division whe n requested; j) take appropriate action with respe ct to suc h complaints a nd any de ficienc ies f ound in products or serv ices that aff ect complianc e w ith the re quirements f or certificat ion; k) document the a ctions t ake n. This a uthorization is v alid until further written notice f rom the applicant. Sincerely Yours, Jongin Kim / Principal Engineer SAMSUNG Electronics Co.,Ltd (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea REMARK: 1 This a uthorization letter will be s ent along with your application when filing with the Cert ification Division. 2 Please f ollow t he f ormat and type it on company letterhead and send original to us.

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Date: July 19, 2022 Federal Co mmun icatio ns Commission Authorization and Evalu ation Division 7435 Oakla nd Mills Road, Columbia, MD 21046 Request of Confidentiality for FCC ID: A3LRF4451D-70A To Whom It May Concern: Pursuant to Sections 0.457 and 0.459 of the Co mmission’s Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, SAMSUNG Electronics Co., Ltd.. hereby requests confidentiality and treatment of certain inf ormation accompany ing this applicatio n. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matte rs might be h armf ul to the Applicant and provide unjusti fied benefits to its compe tit ors. We are also hereby request Short-Term Conf identiality for 180 days after the grant as outlined in Publ ic Notice DA 04-1705. This provision will give S AMSUNG Electronics Co., Ltd. temporary conf identiality of commercially sensitive in formation prior to product rele ase. The requ ested Co nfidential and Temporary Co nfidential exhibits are listed as f ollows: CONFIDENTIAL AND SHORT-TERM CONFIDENTIAL LIST Exhibit Description LONG-TERM CONFIDENTIAL 1 Block Diagram 2 Operational Descriptions 3 Parts Lists and Tune-Up Procedure 4 Schematics 5 Internal Photos 6 User’s Manual SHORT-TERM CONFIDENTIAL 7 External Photos 8 Test-Setup Photos The Appl icant understands that pursuant to Rule 0.457, disclo su re of this application and all acc ompanyin g documentatio ns, where applicabl e, will not be made public before the date of the G rant for this applicatio n. Sincerely, Jongin Kim / Principal Engineer SAMSUNG Electronics Co.,Ltd. (Maetan- dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeongg i-do, 16677, Republic of Kor ea

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Date: July 19, 2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Long-Term Confidentiality for FCC ID: A3LRF4451D-70A To Whom It May Concern: This is a request to hold the internal photos and user manual for FCC ID: A3LRF4451D-70A under long term confidentiality. The transmitter is a Base Station where access is controlled and only available to trained personnel. Please note that the internal photos are being asked to be confidential under the FCC guidelines that this is a non-consumer device (Base Station) and is inaccessible to the general public due to the location of the device and it is only serviceable by the licensee or his designated technicians. The user manual is being requested to be confidential under the FCC guidelines that the manual is very technical and is not provided to the general public. The user manual contains proprietary information required for trained installers to commission the base station. The user manual will be used by the licensee or his designated technicians only.Having the subject information easily available to competitors would negate the advantage we have achieved by developing this product. All sales of the non-consumer device will be under NDA to include 3rd party sales and that the final user of the device is subject to the NDA as required by the special conditions of section II)3)c) of KDB 726920 D01. The requested Long-Term Confidential exhibits are list as follows: LONG-TERM CONFIDENTIAL LIST Exhibit Description LONG-TERM CONFIDENTIAL 1 Internal Photographs 2 User’s Manual Sincerely, Jongin Kim / Principal Engineer SAMSUNG Electronics Co.,Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea

Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 1 of 6 © 2021 Element V 1.0 2020 E X T E R N A L P H O T O G R A P H S Front view Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 2 of 6 © 2021 Element V 1.0 2020 Rear view Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 3 of 6 © 2021 Element V 1.0 2020 Left side view Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 4 of 6 © 2021 Element V 1.0 2020 Right side view Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 5 of 6 © 2021 Element V 1.0 2020 Top view Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A External Photographs EUT Type: RRU(RF4451d) Page 6 of 6 © 2021 Element V 1.0 2020 Bottom view

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FCC ID: A3LRF4451D-70A MEASUREMENT REPORT (CERTIFICATION) Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 1 of 73 8K22062402-00-R1.A3L 07/04/2022 - 07/22/2022 RRU(RF4451d) © 2021 Element ES-QP-16-12 Rev.01 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without written permission from Element. If you have any questions about this or have an inquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. Applicant Name: Samsung Electronics Co., Ltd. 129, Samsung-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16677, Korea Date of Testing: 07/04/2022 - 07/22/2022 Test Site/Location: Element Lab., Suwon, Yongin-si, Gyeonggi-do, Korea Test Report Serial No.: 8K22062402-00-R1.A3L FCC ID: A3LRF4451D-70A APPLICANT: Samsung Electronics Co., Ltd. Application Type: Certification Model: RF4451d-70A EUT Type: RRU(RF4451d) FCC Classification: Licensed Non-Broadcast Station Transmitter FCC Rule Part(s): 27 Test Procedure(s): ANSI C63.26-2015, KDB 971168 D01 v03r01, KDB 662911 D01 v02r01 This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in §2.947. Test results reported herein relate only to the item(s) tested. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Prepared by DuJin Kim Reviewed by Charles.Shin Test Engineer Technical Manager Element Suwon (#1407) 13, Heungdeok 1-ro, Giheung-gu, Yongin-si, Gyeonggi-do 16954, Korea Tel. +82 31.660.7319 / Fax +82 31.660.7918 http://www.element.com TEST REPORT PART 27 MEASUREMENT REPORT FCC ID: A3LRF4451D-70A MEASUREMENT REPORT (CERTIFICATION) Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 2 of 73 8K22062402-00-R1.A3L 07/04/2022 - 07/22/2022 RRU(RF4451d) © 2021 Element ES-QP-16-12 Rev.01 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without written permission from Element. If you have any questions about this or have an inquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. T A B L E O F C O N T E N T S 1.0 REVISION RECORD ..................................................................................................................................... 4 2.0 INTRODUCTION ........................................................................................................................................... 5 2.1 Scope ................................................................................................................................................................. 5 2.2 Element Test Location ........................................................................................................................................ 5 2.3 Test Facility / Accreditation ................................................................................................................................ 5 3.0 PRODUCT INFORMATION ........................................................................................................................... 6 3.1 Equipment Description ....................................................................................................................................... 6 3.2 Device Capabilities ............................................................................................................................................. 6 3.3 Test Configuration .............................................................................................................................................. 7 3.4 EMI Suppression Device(s)/Modifications .......................................................................................................... 8 4.0 DESCRIPTION OF TESTS ........................................................................................................................... 9 4.1 Measurement Procedure .................................................................................................................................... 9 4.2 Measurement Software ...................................................................................................................................... 9 5.0 MEASUREMENT UNCERTAINTY .............................................................................................................. 10 6.0 TEST EQUIPMENT CALIBRATION DATA ................................................................................................. 11 7.0 SAMPLE CALCULATIONS ......................................................................................................................... 12 8.0 TEST RESULTS .......................................................................................................................................... 13 8.1 Summary .......................................................................................................................................................... 13 8.2 Occupied Bandwidth ........................................................................................................................................ 14 8.3 Equivalent Isotropic Radiated Power (Power Spectral Density) ....................................................................... 19 8.4 Peak To Average Ratio ...........................................................................................…

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Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A Test Set-Up Photos EUT Type: RRU(RF4451d) Page 1 of 3 © 2021 Element V 1.0 2020 TEST SETUP PHOTOGRAPHS Below 1GHz Test Instrument & Measurement Setup Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A Test Set-Up Photos EUT Type: RRU(RF4451d) Page 2 of 3 © 2021 Element V 1.0 2020 Above 1GHz Test Instrument & Measurement Setup > 1GHz Samsung Electronics Co., Ltd. FCC ID: A3LRF4451D-70A Model: RF4451d-70A Test Set-Up Photos EUT Type: RRU(RF4451d) Page 3 of 3 © 2021 Element V 1.0 2020 Test Instrument & Measurement Setup Photo