OZ5PSRMTRF4CE RCU

Certification designating a U.S. Agent for service of process: As required by section 2.911(d)(7), the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. In either scenario, the designation of the U.S. agent for service of process should be provided as an attachment to the equipment authorization application. The applicant must provide a written certification, which must: i. Be signed by both the applicant and designated agent for service of process, if the agent is different from the applicant. ii. Acknowledge the applicant’s consent and the designated agent’s obligation to accept service of process. iii. Provide a physical U.S. address and email for the designated agent. iv. Acknowledge the applicant’s acceptance 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. Unofficial information provided by FCC personnel on February 14, 2023, via the monthly call with the TCB Council: The Agent for Process of Service: • cannot be a TCB or affiliated with a TCB (e.g. could not be a person who works for a TCB or a company that owns or is owned by the TCB) • cannot be a [FCC recognised] Lab or affiliated with a test lab (e.g. could not be a person who works for a Lab or a company that owns or is owned by the Lab) • Agent can be Individual Entity or a Company Entity • Agent Entity must be located in US, US address/phone • Entity acting as Agent must have FRN (best practice, put FRN on Agent Letter) • Agent letter does not have to be FCC ID specific, can be general Agent for Grantee For devices being marketed or for which marketing has ceased for less than 1 year, if the Agent for Process of Service changes, then for every TC Number the TCB must request the FCC to put application into Audit Mode and Agent Letter needs to be updated (superseded). NOTE: The U.S. Agent for Service of Process should not be confused with the authorized agent used for signing the 731 form, other cover letters within the application, and/or the agent who may interface with the TCB. OHSUNG ELECTRONICS CO., LTD #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 U.S. Agent Designation for Service of Process ATTENTION: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA REGARDING: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Approve-IT, Inc. Contact Name: Nathan Grinager Street Address: 8011 34 th Ave South, Suite 342 City/Province/Zip: Bloomington, MN 55425 Telephone No: 651-247-1678 Email: [email protected] FRN #: 0027533835 This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: September 21, 2023 Signed by (Printed Name/Title): Na than Grinager / Co-President *This letter is valid indefinitely for all applications submitted within the period of 09/21/2023 - 09/20/2028 The Applicant confirms its explicit consent and acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: OHSUNG ELECTRONICS CO., LTD. Grantee FRN: 0011415411 Grantee Code: OZ5 Contact Name: Hak-Ki, Kim Street Address: #181 Gongdan-Dong City/Province/Zip: Gumi-Si,Gyeongsangbuk-Do Telephone No: +82-54-468-7281 Email: [email protected] Applicant Signature: Date: Sep. 21, 2023 Signed by (Printed Name/Title): Hak-Ki, Kim / General Manager

Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 1 / 1 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT APPENDIX A : ATTESTATION STATEMENT Dec. 22, 2025 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakla nd Mills Road Columbia, MD 21046 U.S.A. To whom it may concern: We certify that we are not subject to denial of federal benefits , that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Sincerely, Hak-Ki, Kim / General Manager OHSUNG ELECTRONICS CO., LTD.

Rev 1/26/2023 OHSUNG ELECTRONICS CO., LTD #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jan. 08, 2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: OZ5PSRMT OHSUNG 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. OHSUNG ELECTRONICS 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-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, __________________________________ Name : Hak-Ki Kim Title : General Manager TEL. : +82-54-468-7282 OHSUNG ELECTRONICS CO.,LTD. #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Rev 1/26/2023 OHSUNG ELECTRONICS CO., LTD #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jan. 08, 2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: OZ5PSRMT OHSUNG 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, __________________________________ Name : Hak-Ki Kim Title : General Manager TEL. : +82-54-468-7282 OHSUNG ELECTRONICS CO.,LTD. #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea

OHSUNG ELECTRONICS CO., LTD #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 Date: Jan. 08, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA SUBJECT: Application for Certification for FCC: OZ5PSRMT To Whom It May Concern: OHSUNG ELECTRONICS CO., LTD., the undersigned, hereby authorize Hyun Kim(Technical Manager) and other related persons at GUMI UNIVERSITY EMC CENTER on our behalf, to apply to FCC on our equipment. Any and all acts carried out by Hyun Kim and other related persons on our behalf shall have the same effect as acts of our own. Regards, __________________________________ Name : Hak-Ki Kim Title : General Manager TEL. : +82-54-468-7282 OHSUNG ELECTRONICS CO., LTD. #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea

Confidentiality Request Letter Ohsung Electronics Co.,Ltd #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 Jan. 08, 2026 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: OZ5PSRMT Pursuant to sections 0.457 and 0.459 of CFR 47, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application as: - Schematic Diagram - Block Diagram - Part List - Operational Description 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 disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature Client’s name : Hak-Ki Kim Title : General Manager Contact information : +82-54-468-7282 Address : #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Ohsung Electronics Co.,Ltd #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea Tel: +82-54-468-7282, Fax: +82-54-461-8368 Jan. 08, 2026 To: Federal Communications Commission Office of Engineering and Technology Equipment Authorization Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Short Term Confidentiality Request for FCC ID: OZ5PSRMT To Whom It May Concern: Pursuant to sections 0.457 and 0.459 of CFR 47, and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 45 or 180 days; or for a specified date of / / not to exceed 180 days from the Grant Date. See KDB 726920. - User Manual - Test Setup Photos - External Photos - Internal Photos 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. Sincerely, Client’s signature Client’s name : Hak-Ki Kim Title : General Manager Contact information : +82-54-468-7282 Address : #181 Gongdan-Dong, Gumi-Si,Gyeongsangbuk-Do, South Korea

Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 1 / 2 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT APPENDIX B : ID SAMPLE LABEL & LOCATION Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 2 / 2 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT LABELLING REQUIREMENTS The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase.  ID Label  ID Label Location of EUT ID Label

Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 1 / 2 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT APPENDIX L : RF EXPOSURE EVALUATION Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 2 / 2 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT 1. RF Exposure Evaluation Test Result of RF Exposure Evaluation According to the KDB-447498 D01 V06, FCC 47CFR § 2.1093 the following RF exposure evaluation shall to demonstrate RF exposure compliance [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] *[√f(GHz)] Frequency Average Conducted Output Power(dBm) Target Power /tolerance (dBm) Maximum Average Output Power(dBm) Maximum Average Output Power(mW) Separation Destance (mm) RF Exposure 2405 9.3 8.5 ± 1 9.5 8.913 5 2.76 2440 8.9 8.5 ± 1 9.5 8.913 5 2.78 2480 8.8 8.5 ± 1 9.5 8.913 5 2.81 The Max RF exposure is 2.81 Threshold at which no SAR required is << 3 for 1-g SAR, Separation distance is 5 mm Conclusion: So no SAR is required.

GETEC-QP-16-008 (Rev.01) EMC CENTER This test report only contains the result of a specific sample supplied by applicant for the testing. It is not allowed to copy this report even partly without the approval of EMC center GUMI UNIVERSITY EMC CENTER Page 1 of 30 E E V V A A L L U U A A T T I I O O N N R R E E P P O O R R T T f f o o r r C C e e r r t t i i f f i i c c a a t t i i o o n n Rule Part(s) : FCC Part 15 Subpart C-Intentional Radiator § 15.247 Test Method : ANSI C63.10 (2020) Equipment Class : Digital Transmission System(DTS) EUT Type : RF4CE RCU Type of Authority : Certification Model Name : PSRMT This equipment has been shown to be in compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10 (2020) 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 vest 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. Tested by, Reviewed by, Jong-Wook Park, Senior Engineer Hyun Kim, Technical Manager GUMI UNIVERSITY EMC CENTER GUMI UNIVERSITY EMC CENTER A A p p p p l l i i c c a a n n t t : : O O h h s s u u n n g g E E l l e e c c t t r r o o n n i i c c s s C C o o . . , , L L t t d d . . D D a a t t e e o o f f I I s s s s u u e e : : D D e e c c . . 2 2 2 2 , , 2 2 0 0 2 2 5 5 # # 1 1 8 8 1 1 G G o o n n g g d d a a n n - - d d o o n n g g , , G G u u m m i i - - s s i i , , G G y y e e o o n n s s a a n n g g b b u u k k - - D D o o O O r r d d e e r r N N u u m m b b e e r r : : G G E E T T E E C C - - C C 1 1 - - 2 2 5 5 - - 8 8 9 9 4 4 S S o o u u t t h h K K o o r r e e a a T T e e s s t t R R e e p p o o r r t t N N u u m m b b e e r r : : G G E E T T E E C C - - E E 3 3 - - 2 2 5 5 - - 1 1 0 0 1 1 A A t t t t n n : : M M r r . . H H a a k k K K i i , , K K i i m m / / G G e e n n e e r r a a l l M M a a n n a a g g e e r r T T e e s s t t S S i i t t e e : : G G U U M M I I U U N N I I V V E E R R S S I I T T Y Y E E M M C C C C E E N N T T E E R R C C A A B B D D e e s s i i g g n n a a t t i i o o n n N N u u m m b b e e r r : : K K R R 0 0 0 0 3 3 3 3 A A P P P P L L I I C C A A N N T T : : O O h h s s u u n n g g E E l l e e c c t t r r o o n n i i c c s s C C o o . . , , L L t t d d . . A A D D D D R R E E S S S S : : # # 1 1 8 8 1 1 G G o o n n g g d d a a n n - - d d o o n n g g , , G G u u m m i i - - s s i i , , G G y y e e o o n n g g s s a a n n g g b b u u k k - - d d o o , , S S o o u u t t h h K K o o r r e e a a C C O O N N T T A A C C T T P P E E R R S S O O N N : : M M r r . . H H a a k k - - K K i i , , K K i i m m / / G G e e n n e e r r a a l l M M a a n n a a g g e e r r 10d374b32387496b944f99f154cd038d Order Number : GETEC-C1-25-894 FCC Part 15 Subpart C Test Report Number : GETEC-E3-25-101 Page 2 / 30 GETEC-QP-16-008 (Rev.01) EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT Version Test Report No. Date Description GETEC-E3-25-101 Dec. 22, 2025 - First Approval Report ※ This test report is not related to the accredited test result by ISO/IEC 17025 and KOLAS Order Number : GETEC-C1-25-894 FCC Part 15 Subpart C Test Report Number : GETEC-E3-25-101 Page 3 / 30 GETEC-QP-16-008 (Rev.01) EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................... 5 2. INTRODUCTION ........................................................................................................................................................ 6 3. PRODUCT INFORMATION ...................................................................................................................................... 7 3.1 DESCRIPTION OF EUT .............................................................................................................................................. 7 3.2 CHANNEL LIST ......................................................................................................................................................... 7 3.3 DEFINITION OF MODELS ........................................................................................................................................... 7 3.4 SUPPORT EQUIPMENT / CABLES USED ..................................................................................................................... 8 3.5 MODIFICATION ITEM(S) ........................................................................................................................................... 8 4. ANTENNA REQUIREMENT - §15.203 ..................................................................................................................... 9 4.1 DESCRIPTION OF ANTENNA ...................................................................................................................................... 9 5. DESCRIPTION OF TESTS ......................................................................................................................................... 9 5.1 TEST CONDITION ...................................................................................................................................................... 9 6. REFERENCES STANDARDS .................................................................................................................................... 9 8. SUMMARY OF TEST RESULTS ............................................................................................................................. 10 9. 6 DB BANDWIDTH MEASUREMENT .................................................................................................................. 11 9.1 OPERATING ENVIRONMENT................................................................................................................…

Text truncated - open the document above for the full version.

Order Number : GETEC-C1-25-894 FCC Part 15 subpart C Test Report Number : GETEC-E3-25-101 Page 1 / 1 EUT Type: RF4CE RCU FCC ID.: OZ5PSRMT APPENDIX J : ANTENNA SPECIFICATION All Rights Reserved by RadinaCo., Ltd. 2-2. #2 tune Passive Measurement Data S11 SC SWR Efficiency 1234567891011121314151617181920 Frequency [MHz]24002405241024152420242524302435244024452450245524602465247024752480248524902497 Efficiency [dB]-2.52 -2.51 -2.61 -2.65 -2.68 -2.58 -2.43 -2.38 -2.52 -2.46 -2.59 -2.47 -2.45 -2.46 -2.52 -2.47 -2.41 -2.75 -2.73 -2.62 Efficiency [%]55.9 56.1 54.8 54.3 54.0 55.3 57.2 57.8 56.0 56.7 55.1 56.7 56.9 56.7 56.0 56.7 57.4 53.1 53.3 54.7 TRG θ [dB]-5.52 -5.49 -5.58 -5.66 -5.69 -5.70 -5.52 -5.48 -5.78 -5.68 -5.86 -5.76 -5.89 -5.95 -6.00 -5.97 -5.94 -6.45 -6.39 -6.21 Gain θ Peak [dB]0.04 -0.14 -0.47 0.00 -0.11 -0.08 0.12 -0.22 -0.61 0.06 -0.16 -0.26 -0.63 -0.09 -0.75 -0.94 -0.35 -0.54 -0.92 -0.04 Gain θ Min [dB]-23.73 -27.02 -25.53 -39.57 -27.71 -37.50 -38.87 -24.19 -32.17 -29.10 -30.06 -35.45 -28.11 -28.00 -37.21 -29.40 -30.05 -24.10 -23.14 -24.26 TRG φ [dB]-5.55 -5.56 -5.66 -5.66 -5.69 -5.47 -5.36 -5.30 -5.29 -5.27 -5.36 -5.21 -5.07 -5.05 -5.11 -5.03 -4.95 -5.16 -5.18 -5.13 Gain φ Peak [dB]-0.50 -0.25 -1.00 -0.75 -0.61 -0.40 -0.35 0.06 -0.13 0.62 0.09 0.08 0.68 0.81 0.89 0.86 1.42 0.44 1.00 1.00 Gain φ Min [dB]-32.22 -29.14 -27.47 -31.45 -27.88 -26.09 -26.67 -32.40 -31.42 -28.07 -38.87 -27.63 -35.05 -29.15 -31.72 -28.98 -29.87 -31.32 -23.83 -30.16 UHRG [dB]-5.58 -5.46 -5.52 -5.56 -5.49 -5.36 -5.24 -5.22 -5.27 -5.15 -5.32 -5.17 -5.15 -5.12 -5.13 -5.07 -4.96 -5.28 -5.17 -5.07 UHRG/TRG [%]49.5 50.7 51.3 51.2 52.3 52.6 52.4 51.9 53.1 53.9 53.3 53.6 53.7 54.3 54.8 55.0 55.5 55.8 57.0 56.9 H-Plane-5.74 -5.85 -5.81 -6.00 -6.01 -6.13 -5.66 -5.86 -5.98 -6.05 -6.17 -5.93 -6.08 -6.33 -6.33 -6.24 -6.56 -6.87 -6.90 -6.56 E1-Plane, AVG [dB]-13.38 -12.95 -13.13 -13.27 -13.29 -13.59 -12.96 -13.28 -13.82 -13.40 -13.44 -12.85 -13.47 -13.03 -13.15 -13.53 -12.69 -13.97 -13.25 -13.77 E2-Plane, AVG [dB]-2.39 -2.33 -2.42 -2.39 -2.48 -2.43 -2.03 -2.24 -2.41 -2.31 -2.34 -2.37 -2.37 -2.52 -2.53 -2.57 -2.54 -2.96 -3.06 -2.76 Peak Gain [dB]1.01 1.07 0.54 0.57 0.58 1.09 0.83 0.91 0.77 0.79 0.63 0.95 0.75 0.90 0.99 1.03 1.55 0.98 1.09 1.19 Directivity [dB]3.54 3.58 3.15 3.22 3.26 3.66 3.25 3.29 3.29 3.25 3.22 3.41 3.20 3.37 3.51 3.49 3.96 3.73 3.82 3.81 Minimum Gain [dB]-9.74 -9.21 -10.50 -9.38 -9.53 -9.08 -9.63 -9.58 -10.15 -8.55 -10.54 -10.70 -9.38 -11.33 -11.72 -9.49 -11.27 -8.91 -9.73 -11.60 Average Efficiency-2.54dB55.73%