FCC ID: 2AS4FFEPCOTXR8500V DMR Repeater

EL PASO COMMUNICATION SYSTEMS, INC 8301 NW 27 St. #1 Dorlal Florida 33122 United States Date: 01-18-2024 Product Model Number: TXR8500V FCC ID: 2AS4FFEPCOTXR8500V To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:

Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Hilda Saad Contact Listed on FCC Wesbite Title: General Manager Email: hilda@epcom.net Telephone: 915-533-5119 On behalf of: EL PASO COMMUNICATION SYSTEMS, INC

TYT ELECTRONICS CO., LTD Block 39-1, Optoelectronics-information industry base, Nan'an, Quanzhou, Fujian, China. Jan. 16, 2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attention: Regulatory Authority Subject: Authorization to Change in FCC ID Reference FCC ID: POD-RPT50V To the Commission:

We (TYT ELECTRONICS CO., LTD), hereby authorize EL PASO COMMUNICATION SYSTEMS, INC. to Change in FCC ID on our original FCC ID: POD-RPT50V (the grant date:

12/26/2023) The Certifications will be transferred into:

FCC ID: 2AS4FFEPCOTXR8500V EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Model Name:TXR8500V Brand Name: tXPRO Sincerely yours, ________________________________ Contact Person: Jiamao Lin

EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 01-06-2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AS4FFEPCOTXR8500V Product Name: DMR Repeater Model Name: TXR8500V Brand Name: tXPRO EL PASO COMMUNICATION SYSTEMS, INC. (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. Sincerely, ____________________ Hilda Saad, Manager

EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 01-06-2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AS4FFEPCOTXR8500V Product Name: DMR Repeater Model Name: TXR8500V Brand Name: tXPRO EL PASO COMMUNICATION SYSTEMS, INC. (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. Sincerely, ____________________ Hilda Saad, Manager

EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Federal Communications Commission 7345 Oakland Mills Road Columbia MD 21046 Attention: Application Examiner / Review Engineer Subject: Request for a Change in Identification per Section 2.933 of the FCC Rules Reference: FCC ID:2AS4FFEPCOTXR8500V To The Commission:

This change in identification request applies for a new FCC ID as established in 47 CFR 2.933(b) for a currently approved device. This application by EL PASO COMMUNICATION SYSTEMS, INC. will establish a new FCC ID under EL PASO COMMUNICATION SYSTEMS, INC. grantee code for the purpose of marketing. The original grant to TYT ELECTRONICS CO., LTD with FCC ID:POD-RPT50V will remain in effect. An authorization letter by TYT ELECTRONICS CO., LTD is attached. Per 2.933(b) 1.) The original identification is: FCC ID: POD-RPT50V 2.) The original granted date is: 12/26/2023 3.) The equipment is electrically identical. 4.) The original test results are applicable and representative of this changed device 5.) External photographs incl. FCC ID label location info are included in this application. The following files are electronically submitted as attachments:

- Cover Letter

- External Photos

- ID Lable and Location Info Sincerely _____________________ Contact Person: Hilda Saad

EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Section 2.911(d)(7) USA Agent for Service of Process Product Name: DMR Repeater FCCID: 2AS4FFEPCOTXR8500V Model(s): TXR8500V Brand Name: tXPRO 2.911(d)(7) USA Designated Agent for Service of Process We, EL PASO COMMUNICATION SYSTEMS, INC. (the applicant) designate EL PASO COMMUNICATION SYSTEMS, INC.NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent:We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledgeour acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent & Applicant Company name: EL PASO COMMUNICATION SYSTEMS, INC. Address: 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States Contact Name: Hilda Saad Telephone No: (915) 533-5119 Email: hildasaad@gmail.com FRN: 0001683218 Signature:

__________________ Date: Jan.06, 2024 2.911 (d)(7)USA Agent v1.2 EL PASO COMMUNICATION SYSTEMS, INC. 1630 E Paisano Dr, Ste C,DEl Paso, TX 79901 United States NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-

national-security-threats-to-the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.2