N52-ADXV-R33S8PSADAS

Date: May 12, 2025 Rev: 3.2 HACS-F003 FCC Confidentiality Request Letter HCT America, Inc. ([email protected]) 840 Yosemite Way Milpitas, CA 95035 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 1 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America INC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America INC. FCC Confidentiality Request Letter Date: May 12, 2025 Rev: 3.2 HACS-F003 FCC Confidentiality Request Letter HCT America, Inc. ([email protected]) 840 Yosemite Way Milpitas, CA 95035 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 2 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America INC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America INC. REVISION TABLE Rev Description of Change Date Approved 1.0 Original Release(Obsolete) 06/14/2012 QM 2.0 Updated template(Obsolete) 10/01/2012 QM 2.1 Updated address(Obsolete) 01/10/2014 QM 2.2 Updated address 11/18/2016 QM 3.0 Updated LTC and STC Confidentiality table 11/09/2017 QM 3.1 Update company name and editorial modification 7/15/2024 QM 3.2 Updated address 05/12/2025 QM ADRF KOREA, Inc. 196-16 IYEO-RO BAEKSA-MYEON ICHEON-SI, GYEONGGI-DO, 17316, KOREA HACS-F003 FCC Confidentiality Request Letter Rev: 3.2 DATE: 4/17/2026 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD SUBJECT: Request for Confidentiality for FCC ID : N52-ADXV-R33S8PSA We hereby request confidential treatment of the information accompanying this application as outlined below: LONG-TERM AND SHORT-TERM CONFIDENTIAL LIST LONG-TERM CONFIDENTIAL Exhibit Description 1 Block Diagram 2 Operational Description 3 Parts List 4 Schematics 5 Tune-up procedure SHORT-TERM CONFIDENTIAL (180 DAYS) 6 External Photos 7 Internal Photos 8 Test-Setup Photos 9 User’s Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Signed by: Company Name: ADRF KOREA, Inc. Company Address: 196-16 IYEO-RO BAEKSA-MYEON ICHEON-SI, GYEONGGI-DO, 17316, KOREA Contact Name / Title: Hyun-Kyung, Song / Business Strategy Department Director

ADXV-R-33S8CPS Label Label 1 L abel 2

TEST REPORT FCC MPE Test for ADXV-R-33S8CPS Certification APPLICANT ADRF KOREA, Inc. REPORT NO. HCT-RF-2604-FC065 DATE OF ISSUE April 29, 2026 Tested by Kyung Soo Kang Technical Manager Kwon Jeong F-TP22-03(Rev.06) 1 / 6 The report shall not be (partly) reproduced except in full without approval of the laboratory. HCT CO., LTD.2-6, 73, 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Republic of Korea Tel. +82 31 645 6300 Fax. +82 31 645 6401 The report shall not be (partly) reproduced except in full without approval of the laboratory. F-TP22-03 (Rev. 06) Page 2 of 6 HCT CO.,LTD. 2-6, 73, 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Republic of Korea Tel. +82 31 645 6300 Fax. +82 31 645 6401 TEST REPORT REPORT NO. HCT-RF-2604-FC065 DATE OF ISSUE April 29, 2026 A pplicantADRF KOREA, Inc. 196-16 IYEO-RO BAEKSA-MYEON ICHEON-SI, GYEONGGI-DO, 17316, KOREA Product Name Model Name DAS ADXV-R-33S8CPS FCC IDN52-ADXV-R33S8PSA Date of TestMarch 6, 2026 ~ April 10, 2026 Location of TestӍ Permanent Testing Lab ӎ On Site Testing (Address: 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi- do, Republic of Korea) Test Standard UsedCFR 47 Part 2.1091 Test ResultsPASS The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC065 F-TP22-03 (Rev. 06) Page 3 of 6 REVISION HISTORY The revision history for this test report is shown in table. Revision No. Date of Issue Description 0 April 29, 2026 Initial Release Notice Content Engineering Statement: 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. The results shown in this test report only apply to the sample(s), as received, provided by the applicant, unless otherwise stated. The test results have only been applied with the test methods required by the standard(s). The laboratory is not accredited for the test results marked *. Information provided by the applicant is marked **. Test results provided by external providers are marked ***. When confirmation of authenticity of this test report is required, please contact www.hct.co.kr The test results in this test report are not associated with the ((KS Q) ISO/IEC 17025) accreditation by KOLAS (Korea Laboratory Accreditation Scheme) / A2LA (American Association for Laboratory Accreditation) that are under the ILAC (International Laboratory Accreditation Cooperation) Mutual Recognition Agreement (MRA). The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC065 F-TP22-03 (Rev. 06) Page 4 of 6 RF Exposure Statement 1. LIMITS According to §1.1310 and §2.1091 RF exposure is calculated. (B) Limits for General Population/Uncontrolled Exposures Frequency range (MHz) Electric field Strength (V/m) Magnetic field Strength (A/m) Power density (mW/cm²) Averaging time (minutes) 0.3 - 1.34 1.34 - 30 30 - 300 300 - 1500 1500 - 100.000 614 824/f 27.5   1.63 2.19/f 0.073   #) (100) #) (180/f²) 0.2 f/1500 1.0 30 30 30 30 30 F = frequency in MHz # = Plane-wave equivalent power density 2. MAXIMUM PERMISSIBLE EXPOSURE Prediction Prediction of MPE limit at a given distance S = PG/4πR² S = Power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC065 F-TP22-03 (Rev. 06) Page 5 of 6 3. RESULTS - NPSPAC Maximum output Power at antenna input terminal 33.50 dBm Maximum output Power at antenna input terminal 2 238.72 mW Prediction distance 71.00 cm Prediction frequency 851.00 MHz Antenna Gain(typical) 3.90 dBi Antenna Gain(numeric) 2.45 - Power density at prediction frequency(S) 0.0866 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 0.5673 mW/cm 2 - B/ILT; SMR Maximum output Power at antenna input terminal 33.50 dBm Maximum output Power at antenna input terminal 2238.72 mW Prediction distance 71.00 cm Prediction frequency 854.00 MHz Antenna Gain(typical) 3.90 dBi Antenna Gain(numeric) 2.45 - Power density at prediction frequency(S) 0.0866 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 0.5693 mW/cm 2 - ESMR Maximum output Power at antenna input terminal 33.50 dBm Maximum output Power at antenna input terminal 2238.72 mW Prediction distance 71.00 cm Prediction frequency 862.00 MHz Antenna Gain(typical) 3.90 dBi Antenna Gain(numeric) 2.45 - Power density at prediction frequency(S) 0.0866 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 0.5747 mW/cm 2 The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC065 F-TP22-03 (Rev. 06) Page 6 of 6 Simultaneous band emission conditions [Downlink] Band MPE Ratio (Power density / Limit) Sum of MPE Ratio NPSPAC 0.1526 0.4554 ͕ 1 B/ILT; SMR 0.1521 ESMR 0.1507 Notes: 1. The result of each band was applied to the worst value. 2. MPE ratios are calculated as [(Power density1 / MPE Limit) + [(Power density2 / MPE Limit) + ] ͕ 1

TEST REPORT FCC Test for ADXV-R-33S8CPS Certification APPLICANT ADRF KOREA, Inc. REPORT NO. HCT-RF-2604-FC064 DATE OF ISSUE April 29, 2026 Tested by Kyung Soo Kang Technical Manager Kwon Jeong F-TP22-03(Rev.06) 1 / 59 The report shall not be (partly) reproduced except in full without approval of the laboratory. HCT CO., LTD.2-6, 73, 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Republic of Korea Tel. +82 31 645 6300 Fax. +82 31 645 6401 The report shall not be (partly) reproduced except in full without approval of the laboratory. F-TP22-03 (Rev. 06) Page 2 of 59 HCT CO.,LTD. 2-6, 73, 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Republic of Korea Tel. +82 31 645 6300 Fax. +82 31 645 6401 TEST REPORT REPORT NO. HCT-RF-2604-FC064 DATE OF ISSUE April 29, 2026 A pplicantADRF KOREA, Inc. 196-16 IYEO-RO BAEKSA-MYEON ICHEON-SI, GYEONGGI-DO, 17316, KOREA Product Name Model Name DAS ADXV-R-33S8CPS FCC IDN52-ADXV-R33S8PSA Date of TestMarch 6, 2026 ~ April 10, 2026 Location of TestӍ Permanent Testing Lab ӎ On Site Testing (Address: 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi- do, Republic of Korea) Test Standard UsedCFR 47 Part 2, Part 90 Test ResultsPASS The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC064 F-TP22-03 (Rev. 06) Page 3 of 59 REVISION HISTORY The revision history for this test report is shown in table. Revision No. Date of Issue Description 0 April 29, 2026 Initial Release Notice Content Engineering Statement: The measurements shown in this report were made in accordance with the procedures i ndicated, 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. The results shown in this test report only apply to the sample(s), as receiv ed, provided by the applicant, unless otherwise stated. The test results have only been applied with the test methods required by the standard(s). The laboratory is not accredited for the test results marked *. Information provided by the applicant is marked **. Test results provided by external providers are marked ***. When confirmation of authenticity of this test report is required, please contact www.hct.co.kr The test results in this test report are not associated with the ((KS Q) ISO/IEC 17025) accreditation by KOLAS (Korea Laboratory Accreditation Scheme) / A2LA (American Association for Laboratory Accreditation) that are under the ILAC (International Laboratory Accreditation Cooperation) Mutual Recognition Agreement (MRA). The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC064 F-TP22-03 (Rev. 06) Page 4 of 59 CONTENTS 1. GENERAL INFORMATION 5 1.1. APPLICANT INFORMATION 5 1.2. PRODUCT INFORMATION 5 1.3. TEST INFORMATION 5 2. FACILITIES AND ACCREDITATIONS 6 2.1. FACILITIES 6 2.2. EQUIPMENT 6 3. TEST SPECIFICATIONS 7 3.1. STANDARDS 7 3.2. ADDITIONAL DESCRIPTIONS ABOUT TEST 8 3.3. MEASUREMENTUNCERTAINTY 10 3.4. STANDARDS ENVIRONMENTAL TEST CONDITIONS 10 3.5. TEST DIAGRAMS 11 4. TEST EQUIPMENTS 13 5. TEST RESULT 14 5.1. AGC THRESHOLD 14 5.2. OUT-OF-BAND REJECTION 16 5.3. OCCUPIED BANDWIDTH 18 5.4. INPUT-VERSUS-OUTPUT SIGNAL COMPARISON 27 5.5. INPUT/OUTPUT POWER AND AMPLIFIER/BOOSTER GAIN 36 5.6. NOISE FIGURE 42 5.7. OUT-OF-BAND/OUT-OF-BLOCK EMISSIONS AND SPURIOUS EMISSIONS 44 5.8. RADIATED SPURIOUS EMISSIONS 51 5.9. FREQUENCY STABILITY 53 6. Annex A_EUT AND TEST SETUP PHOTO 59 The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC064 F-TP22-03 (Rev. 06) Page 5 of 59 1. GENERAL INFORMATION 1.1. APPLICANT INFORMATION Company Name ADRF KOREA, Inc. Company Address 196-16 IYEO-RO BAEKSA-MYEON ICHEON-SI, GYEONGGI-DO, 17316, KOREA 1.2. PRODUCT INFORMATION EUT Type DAS EUT Serial Number ADXVR33S8CPSxxxxxx Power Supply 100-240VAC, 50/60Hz Frequency Range Band Name Downlink (MHz) NPSPAC 851 ~ 854 B/ILT; SMR 854 ~ 861 ESMR 862 ~ 869 Tx Output Power Downlink: 33 dBm Antenna Peak Gain Band Name Downlink NPSPAC 3.9 dBi 1.75 dBd B/ILT; SMR ESMR 1.3. TEST INFORMATION FCC Rule Parts CFR 47 Part 2, Part 90 Measurement Standards KDB 935210 D05 v01r04, KDB 971168 D01 v03r01, KDB 935210 D02 v04r03, ANSI C63.26-2015 Test Location 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Republic of Korea The report shall not be (partly) reproduced except in full without approval of the laboratory. Report No. HCT-RF-2604-FC064 F-TP22-03 (Rev. 06) Page 6 of 59 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, Republic 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 February 26, 2026(Registration Number: KR0032). 2.2. EQUIPMENT Radiated emissions are measured with one or more of the following types of linearly polarized antennas: tuned dipole, bi-conical, log periodic, bi-log, and/or ridged waveguide, horn. Spectrum analyzers with pre-selectors and quasi-peak detectors are used to perform radiated measurements. Calibrated wideband preamplifiers, coaxial cables, and coaxial attenuators are also used for making measurements. All receiving equipment conforms to CISPR Publication 16-1, ˑRadio Interference Measuring Apparatus and Measurement Methods.˒ The report shall not be (partly) reproduced ex…

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