2BTDM-MWSR2-900Repeater

MPIA CO., LTD. Covered Equipment Certification Attestation Letter 4/28/2026 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BTDM-MWSR2-900 MPIA 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. This includes certifying 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). 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. MPIA 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. Signed: Printed name: Jang chanson Title: Principal research engineer Company Name: MPIA CO., LTD. Date: 4/28/2026

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. MPIA CO., LTD. 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: December 11, 2025 Signed by (Printed Name/Title): Nathan Grinager / Co-President 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: MPIA CO., LTD. Grantee FRN: 0037688512 Grantee Code: 2BTDM Contact Name: Jang chanson Street Address: 203-701, 388 Songnae-daero, Wonmi-gu, City/Province/Zip: Bucheon-si, Gyeonggi-do, South Korea 14502 Telephone No: +82-32-666-8191 Email: [email protected] Applicant Signature: Date: December 11, 2025 Signed by (Printed Name/Title): Jang chanson / Principal research engineer

MPIA CO., LTD. 4/29/2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint ONETECH Corp., 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, Signed: Printed name: Jang chanson

MPIA CO., LTD. April 29, 2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2BTDM-MWSR2-900 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 of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the 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. Exhibit Type 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=41731 and 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: Name: Jang chanson Title: Principal research engineer Company Name: MPIA CO., LTD.

Page 1 of 1 IDENTIFICATION LABEL: PROPOSED LABEL The shall be permanently affixed in the rear side of the equipment

Page 1 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) EMF TEST REPORT Test Report No. : OT-264-RWD-080 Reception No. : 2509002935 Applicant : MPIA CO., LTD. Address : 203-701, 388 Songnae-daero, Wonmi-gu, Bucheon-si, Gyeonggi-do, South Korea Manufacturer : MPIA CO., LTD. Address : 203-701, 388 Songnae-daero, Wonmi-gu, Bucheon-si, Gyeonggi-do, South Korea Type of Equipment : Reapeater FCC ID. : 2BTDM-MWSR2-900 Model Name : MWSR2-900 Multiple Model Name : N/A Serial number : N/A Total page of Report : 7 pages (including this page) Date of Incoming : March 29, 2026 Date of issue : April 29, 2026 SUMMARY The equipment complies with the regulation; FCC CFR 47 PART 2.1091 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Ha-Ram, Lee / Deputy Chief Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS Page 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 4 2. GENERAL INFORMATION ............................................................................................................................................ 5 2.1 PRODUCT DESCRIPTION ................................................................................................................................................. 5 2.2 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 5 3. EUT MODIFICATIONS .................................................................................................................................................... 5 4. MAXIMUM PERMISSIBLE EXPOSURE ...................................................................................................................... 6 4.1 RF EXPOSURE CALCULATION ....................................................................................................................................... 6 4.2 EUT DESCRIPTION ......................................................................................................................................................... 6 4.3 CALCULATED MPE SAFE DISTANCE............................................................................................................................. 7 Page 3 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) Revision History Rev. No. Issue Report No. Issued Date Revisions Section Affected 0 OT-264-RWD-080 April 29, 2026 Initial Release All Page 4 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 1. VERIFICATION OF COMPLIANCE Applicant : MPIA CO., LTD. Address : 203-701, 388 Songnae-daero, Wonmi-gu, Bucheon-si, Gyeonggi-do, South Korea Contact Person : Jang chanson / Principal research engineer Telephone No. : +82-32-666-8191 FCC ID : 2BTDM-MWSR2-900 Model Name : MWSR2-900 Brand Name : - Serial Number : N/A Date : April 29, 2026 EQUIPMENT CLASS DSC - Part 15, Security/Remote Control Transmitter E.U.T. DESCRIPTION Reapeater THIS REPORT CONCERNS Original grant MEASUREMENT PROCEDURES KDB 447498 D01 General RF Exposure Guidance v06 TYPE OF EQUIPMENT TESTED Pre-Production KIND OF EQUIPMENT AUTHORIZATION REQUESTED Certification MODIFICATIONS ON THE EQUIPMENT TO ACHIEVE COMPLIANCE None -. The above equipment was tested by ONETECH Corp. for compliance with the requirement set forth in the FCC Rules and Regulations. This said equipment in the configuration described in this report, shows the maximum emission levels emanating from equipment are within the compliance requirements. Page 5 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 2. GENERAL INFORMATION 2.1 Product Description The MPIA CO., LTD., Model MWSR2-900 (referred to as the EUT in this report) is a Reapeater. The product specification described herein was obtained from product data sheet or user’s manual. DEVICE TYPE Reapeater Temperature Range -20 °C ~ +60 °C OPERATING FREQUENCY 433.92 MHz MODULATION FSK ANTENNA TYPE Whip Antenna ANTENNA GAIN 0.546 dBi List of each Osc. or crystal Freq.(Freq. >= 1 MHz) 26 MHz 2.2 Alternative type(s)/model(s); also covered by this test report. -. None 3. EUT MODIFICATIONS -. None Page 6 of 7 Report No.: OT-264-RWD-080 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 4. MAXIMUM PERMISSIBLE EXPOSURE 4.1 RF Exposure Calculation According to …

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

433.92 MHz (HW-T433H-RSMA)

Page 1 of 22 Report No.: OT-264-RWD-079 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) RADIO PERFORMANCE TEST REPORT Test Report No. : OT-264-RWD-079 Reception No. : 2509002935 Applicant : MPIA CO., LTD. Address : 203-701, 388 Songnae-daero, Wonmi-gu, Bucheon-si, Gyeonggi-do, South Korea Manufacturer : MPIA CO., LTD. Address : 203-701, 388 Songnae-daero, Wonmi-gu, Bucheon-si, Gyeonggi-do, South Korea Type of Equipment : Repeater FCC ID. : 2BTDM-MWSR2-900 Model Name : MWSR2-900 Multiple Model Name : N/A Serial number : N/A Total page of Report : 22 pages (including this page) Date of Incoming : March 29, 2026 Date of issue : April 29, 2026 SUMMARY The equipment complies with the regulation; FCC PART 15 SUBPART C Section 15.209 and Section 15.231 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Ha-Ram, Lee / Deputy Chief Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 22 Report No.: OT-264-RWD-079 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS Page 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 5 2. TEST SUMMARY .............................................................................................................................................................. 6 2.1 TEST ITEMS AND RESULTS ............................................................................................................................................. 6 2.2 ADDITIONS, DEVIATIONS, EXCLUSIONS FROM STANDARDS ........................................................................................... 6 2.3 RELATED SUBMITTAL(S) / GRANT(S) ............................................................................................................................ 6 2.4 PURPOSE OF THE TEST ................................................................................................................................................... 6 2.5 TEST METHODOLOGY .................................................................................................................................................... 6 2.6 TEST FACILITY ............................................................................................................................................................... 6 3. GENERAL INFORMATION ............................................................................................................................................ 7 3.1 PRODUCT DESCRIPTION ................................................................................................................................................. 7 3.2 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 7 4. EUT MODIFICATIONS .................................................................................................................................................... 7 5. SYSTEM TEST CONFIGURATION ............................................................................................................................... 8 5.1 JUSTIFICATION ............................................................................................................................................................... 8 5.2 PERIPHERAL EQUIPMENT .............................................................................................................................................. 8 5.3 MODE OF OPERATION DURING THE TEST ...................................................................................................................... 9 5.4 CONFIGURATION OF TEST SYSTEM ............................................................................................................................. 10 5.5 ANTENNA REQUIREMENT ............................................................................................................................................ 10 6. PRELIMINARY TEST .................................................................................................................................................... 10 6.1 AC POWER LINE CONDUCTED EMISSIONS TESTS ....................................................................................................... 10 6.2 GENERAL RADIATED EMISSIONS TESTS ..................................................................................................................... 10 7. Bandwidth Measurement ................................................................................................................................................. 11 7.1 OPERATING ENVIRONMENT ......................................................................................................................................... 11 7.2 TEST SET-UP ................................................................................................................................................................. 11 7.3 TEST DATE .................................................................................................................................................................... 11 7.4 TEST DATA ....................................................................................…

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

Appendix Data 1. DUTY CYCLE 2. BANDWIDTH MEASUREMENT 3. TRANSMISSION TIME 4. RADIATED EMISSION 433.92 MHz Ant 0 Test ItemNo.ModeChannelVerdict Duty Cycle 1FSK0Pass Test Band Antenna Test Parameters for Channel Bandwidths 1 Duty Cycle 433.92 MHz Ant 0 Test ItemNo.ModeChannelVerdict Minimum 20 dB 1FSK0Pass Test Band Antenna Test Parameters for Channel Bandwidths 1 Minimum 20 dB Bandwidth 433.92 MHz Ant 0 Test ItemNo.ModeChannelVerdict Transmission Time 1FSK0Pass Test Band Antenna Test Parameters for Channel Bandwidths 1 Transmission Time Test ItemNo.ModeFrquencyBandwidthDetectorHarmonicPolarization Harmonic1 FSK 433.92PEAK3Horizontal Harmonic2 FSK 433.92PEAK3Vertical Harmonic3 FSK 433.92PEAK4Horizontal Harmonic4 FSK 433.92PEAK4Vertical Harmonic5 FSK 433.92PEAK5Horizontal Harmonic6 FSK 433.92PEAK5Vertical Harmonic7 FSK 433.92PEAK6Horizontal Harmonic8 FSK 433.92PEAK6Vertical Harmonic9 FSK 433.92PEAK7Horizontal Harmonic 10 FSK 433.92PEAK7Vertical Harmonic 11 FSK 433.92PEAK8Horizontal Harmonic 12 FSK 433.92PEAK8Vertical Harmonic 13 FSK 433.92PEAK9Horizontal Harmonic 14 FSK 433.92PEAK9Vertical Harmonic 15 FSK 433.92PEAK10Horizontal Harmonic 16 FSK 433.92PEAK10Vertical Test Parameters Antenna Test Band433.92 MHz Ant 0 1 2 Harmonic Harmonic 3 4 Harmonic Harmonic 5 6 Harmonic Harmonic 7 8 Harmonic Harmonic 9 10 Harmonic Harmonic 11 12 Harmonic Harmonic 13 14 Harmonic Harmonic 15 16 Harmonic Harmonic