A3LRT4424-77BRRU(RT4424)

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: March 23, 2023 Covered Equipment for FCC ID: A3LRT4424-77B To whom it may concern: We, SAMSUNG Electronics Co.,Ltd, certify that the equipment for which it seeks an equipment authorization is not prohibited from receiving an equipment authorization pursuant to section 2.903. Section 2.903 (a) prohibits authorization of “covered” equipment. Per Section 2.911(d)(5)(i)- (ii) 1. SAMSUNG Electronics 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. 2. SAMSUNG Electronics 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. Note. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not “covered” equipment. If this option is selected, then a KDB Inquiry will be submitted to the FCC by this TCB to evaluate your explanation and make a determination on whether the equipment can be authorized. Please provide this explanation in a separate document which will then be submitted in the KDB inquiry. Sincerely, Jenni Chun / Head of Regulatory & Environmental Affairs Samsung Electronics America, Inc. 19 Chapin Rd., Building D Pine Brook, NJ 07058

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea CERTIFICATION FOR US AGENT ACCEPTING SERVICE OF PROCESS Per 47CFR §2.911(d)(7) and FCC KDB 986446 D01 TO: Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: A3LRT4424-77B This letter is to confirm you the below mentioned U.S. Agent is accepting the responsibility to act as the U.S. based Agent for service of process for this Equipment Authorization. We, SAMSUNG Electronics Co.,Ltd, (“the applicant”) will maintain this agent in the US for no less than one year after either all marketing or importation to the US is terminated (or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment), whichever is later. U.S. AGENT Company Name: Samsung Electronics America, Inc. Contact Name: Jenni Chun Address: 19 Chapin Rd., Building D Pine Brook, NJ 07058 Telephone No: +1-800-726-7864 Email: [email protected] FRN: 0027908797 By By Jenni Chun Jongin Kim Samsung Electronics America, Inc. Samsung Electronics Co., Ltd. Head of Regulatory & Environmental Affairs Principal Engineer March 23, 2023 March 23, 2023

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Model Number : RT4424-77B 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 / Head of Regulatory & Environmental Affairs Samsung Electronics America, Inc. Address: 19 Chapin Rd., Building D Pine Brook, NJ 07058 Tel: 1-800-SAMSUNG (1-800-726-7864) Date: March 23, 2023

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea SAMSUNG Electronics Co., Ltd. Date: March 23, 2023 To whom it may concern: We, the undersigned, hereby authorize < HCT CO., LTD.>, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by < HCT CO., LTD.> on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing < HCT CO., LTD.> as our agent, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea i) keep a record of all complaints made known to the us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from 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 authorization letter will be sent along with your application when filing with the Certification Division. 2 Please follow the format 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: March 23, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Confidentiality for FCC ID: A3LRT4424-77B To Whom It May Concern: Pursuant to Sections 0.457 and 0.459 of the Commission’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 information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give SAMSUNG Electronics Co., Ltd. temporary confidentiality of commercially sensitive information prior to product release. The requested Confidential and Temporary Confidential exhibits are listed as follows: CONFIDENTIAL AND SHORT-TERM CONFIDENTIAL LIST Exhibit Description CONFIDENTIAL 1 Operational Descriptions 2 Block Diagram 3 Parts Lists and Tune-Up Procedure 4 Schematics 5 Internal Photos 6 User’s Manual SHORT-TERM CONFIDENTIAL 7 Test-Setup Photos 8 External Photos The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely, Jongin Kim / Staff Research Engineer SAMSUNG Electronics Co.,Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea March 23, 2023 Application Examiner / Reviewing Engineer Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 RE: Request of Long-Term Confidentiality for FCC ID: A3LRT4424-77B To Whom It May Concern, This is a request to hole the internal photos and user manual for FCC ID: A3LRT4424-77B 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. The requested Long-Term Confidential exhibits are listed as follows: LONG-TERM CONFIDENTIAL LIST Exhibit Description LONG-TERM CONFIDENTIAL 1 User’s Manual 2 Internal Photos Sincerely, Jong-in Kim / Principal Engineer SAMSUNG Electronics Co.,Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea

FCC ID: A3LRT4424-77B HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １ of 5 EXTERNAL PHOTOGRAPHS FCC ID: A3LRT4424-77B HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ２ of 5 ■ EXTERNAL PHOTO FCC ID: A3LRT4424-77B HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ３ of 5 ■ EXTERNAL PHOTO FCC ID: A3LRT4424-77B HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ４ of 5 ■ EXTERNAL PHOTO FCC ID: A3LRT4424-77B HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ５ of 5 ■ EXTERNAL PHOTO End of report

RT4424-77B Label Location

SAMSUNG Electronics CO., Ltd. (Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea March 23, 2023 Application Examiner / Reviewing Engineer Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern, RF Exposure Attestation FCC ID: A3LRT4424-77B We, Samsung Electronics Co., Ltd, is declaring that RF Exposure compliance will be addressed at the time of licensing, as required by the responsible FCC Bureau(s), including antenna co- location requirements of 1.1307(b)(3). If you have questions or need further information, please contact the undersigned. Sincerely, --------------------------------------------------------------- Jongin KIM / Staff Research Engineer SAMSUNG Electronics Co.,Ltd.

TEST REPORT FCC Test for RT4424-77B Certification APPLICANT SAMSUNG Electronics Co., Ltd. REPORT NO. HCT-RF-2303-FC008-R3 DATE OF ISSUE April 12, 2023 Tested by Kyung Soo Kang Technical Manager Jong Seok Lee F-TP22-03(Rev.04) HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 1 / 158 The report shall not be reproduced except in full(only partly) without approval of the laboratory. F-TP22-03 (Rev. 04) Page 2 of 158 HCT Co., Ltd. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 TEST REPORT FCC Test for RT4424-77B REPORT NO. HCT-RF-2303-FC008-R3 DATE OF ISSUE April 12, 2023 Additional Model - Applicant SAMSUNG Electronics Co., Ltd. 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea EUT Type RRU(RT4424) Model Name RT4424-77B FCC ID A3LRT4424-77B Date of Test February 21, 2023 ~ April 04, 2023 FCC Rule Parts: CFR 47 Part 2, Part 27 The result shown in this test report refer only to the sample(s) tested unless otherwise stated. This test results were applied only to the test methods required by the standard. F-TP22-03 (Rev. 04) Page 3 of 158 Report No. HCT-RF-2303-FC008-R3 REVISION HISTORY The revision history for this test report is shown in table. Revision No. Date of Issue Description 0 April 04, 2023 Initial Release 1 April 10, 2023 - Add the note in section 3.2. - Updated the antenna specification in section 1.2. 2 April 11, 2023 - Revised the ᄭEUT Typeᄮ on page 2 and 5. - Added the FCC ID in the note on page 8. 3 April 12, 2023 - Revised the ᄭPower Supplyᄮ in section 1.2. The measurements shown in this report were made in accordance with the procedures indicated, and the emissions from this equipment were found to be within the limits applicable. I assume full responsibility for the accuracy and completeness of these measurements, and for the qualifications of all persons taking them. It is further stated that upon the basis of the measurements made, the equipment tested is capable of operation in accordance with the requirements of the FCC Rules under normal use and maintenance. If this report is required to confirmation of authenticity, please contact to www.hct.co.kr F-TP22-03 (Rev. 04) Page 4 of 158 Report No. HCT-RF-2303-FC008-R3 CONTENTS 1. GENERAL INFORMATION 5 1.1. APPLICANT INFORMATION 5 1.2. PRODUCT INFORMATION 5 1.3. TEST INFORMATION 6 2. FACILITIES AND ACCREDITATIONS 7 2.1. FACILITIES 7 2.2. EQUIPMENT 7 3. TEST SPECIFICATIONS 8 3.1. STANDARDS 8 3.2. ADDITIONAL DESCRIPTIONS ABOUT TEST 9 3.3. MAXIMUM MEASUREMENTUNCERTAINTY 14 3.4. STANDARDS ENVIRONMENTAL TEST CONDITIONS 14 3.5. TEST DIAGRAMS 15 4. TEST EQUIPMENTS 17 5. TEST RESULT 18 5.1. RF OUTPUT POWER and PSD 18 5.2. PAPR 53 5.3. OCCUPIED BANDWIDTH 71 5.4. OUT-OF-BAND UNWANTED EMISSIONS 89 5.5. SPURIOUS UNWANTED EMISSIONS 105 5.6. RADIATED EMISSIONS 151 5.7. FREQUENCY STABILITY 154 6. Annex B_EUT AND TEST SETUP PHOTO 158 F-TP22-03 (Rev. 04) Page 5 of 158 Report No. HCT-RF-2303-FC008-R3 1. GENERAL INFORMATION 1.1. APPLICANT INFORMATION Company Name Samsung Electronics Co., Ltd. Company Address 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea 1.2. PRODUCT INFORMATION EUT Type RRU(RT4424) EUT Serial Number S619120500 Power Supply AC 100-240 V Output Power Band Carrier Bandwidth Power (4 Port) 5G NR n77 1 40 MHz 20 W/path, Total: 80 W (4 Port) 5G NR n77 1 60 MHz 20 W/path, Total: 80 W (4 Port) 5G NR n77 1 80 MHz 20 W/path, Total: 80 W (4 Port) 5G NR n77 1 100 MHz 20 W/path, Total: 80 W (4 Port) 5G NR n77 + 5G NR n77 (Contiguous) 2 100 MHz + 40 MHz (10 W/path + 10 W/path) 20 W/path, Total: 80 W (4 Port) 5G NR n77 + 5G NR n77 (Contiguous, Asymmetric) 2 100 MHz + 40 MHz (16 W/path + 4 W/path) 20 W/path, Total: 80 W (4 Port) 5G NR n77 + 5G NR n77 (Contiguous) 2 100 MHz + 100 MHz (10 W/path + 10 W/path) 20 W/path, Total: 80 W (4 Port) 5G NR n77 + 5G NR n77 (Contiguous, Asymmetric) 2 100 MHz + 100 MHz (16 W/path + 4 W/path) 20 W/path, Total: 80 W Frequency Range 3.7 GHz Service : 3 700 MHz ~ 3 980 MHz Emission Designator Mode Bandwidth Emission Designator QPSK (G7D) Conducted (W) 16/64/256 QAM (W7D) Conducted (W) (4 Port) 5G NR n77 40 MHz 38M0G7D 81.29 38M1W7D 82.64 (4 Port) 5G NR n77 60 MHz 58M0G7D 81.22 58M1W7D 83.47 (4 Port) 5G NR n77 80 MHz 77M7G7D 81.97 77M7W7D 82.61 (4 Port) 5G NR n77 100 MHz 97M7G7D 79.30 97M9W7D 80.60 (4 Port) 5G NR n77 + 5G NR n77 (Contiguous) 100 MHz + 40 MHz 137MG7D 74.44 137MW7D 75.95 (4 Port) 5G NR n77 + 5G NR n77 (Contiguous, Asymmetric) 100 MHz + 40 MHz 137MG7D 74.36 137MW7D 76.25 (4 Port) 5G NR n77 + 5G NR n77 (Contiguous) 100 MHz + 100 MHz 197MG7D 75.95 197MW7D 75.61 (4 Port) 5G NR n77 + 5G NR n77 (Contiguous, Asymmetric) 100 MHz + 100 MHz 196MG7D 74.82 196MW7D 75.12 Modulation Type QPSK, 16QAM, 64QAM, 256QAM F-TP22-03 (Rev. 04) Page 6 of 158 Report No. HCT-RF-2303-FC008-R3 Antenna Specification Directional Peak Gain: 21 dBi * Directional Gain was calculated according to KDB 662911 D01 v02r01. Directional Gain = G ANT + 10 log(N ANT ) dBi Directional Peak Gain = (14 dBi + 1 dB(tolerance)) + 10 log(4) dBi = 21 dBi 1.3. TEST INFORMATION FCC Rule Parts CFR 47 Part 2, Part 27 Measurement standards ANSI C63.26-2015, KDB 662911 D01 v02r01, KDB 971168 D01 v03r01 Place of Test HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA F-TP22-03 (Rev. 04) Page 7 of 158 Report No. HCT-RF-2303-FC008-R3 2. FACILITIES AND ACCREDITATIONS 2.1. FACILITIES The SAC(Semi-Anechoic Chamber) and conducted measurement facility used to collect the radiated data are located at the 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA. The site is constructed in conformance with the requirements of ANSI C63.4. (Version :2014) and CISPR Publication 22. Detailed description of test facility was submitted to the Commission and accepted dated April …

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