JYL-GPSI31Globalstar Simplex Uplink Transmitter

Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 22 September 2025 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: JYL-GPSI31 James L Carter (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0006-7333-56 Name: Telonics Inc Address: 932 E Impala Ave, Mesa, AZ 85204 Contact Person: James Carter Tel.: 480 892 4444 x 119 Email: [email protected] Sincerely, James L Carter Director, Special Projects TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 10-29-2025 Re: Covered List, located at https://www.fcc.gov/supplychain/coveredlist and 47 CFR parts §2.903 and §2.911(d)(5)(i)(ii) of the FCC rules Applicant: Telonics Inc FCC ID: JYL-GPSI31 To whom it may concern, Telonics Inc (“Applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to 47 CFR part §2.903 of the FCC rules and does not originate directly or indirectly from any company named on the covered list located in the link above or any subsidiary or affiliate thereof. Applicant further 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 and is not a subsidiary or affiliate of any such entity pursuant to 47 CFR part §1.50002 and required by 47 CFR part §2.911(d)(5)(ii) of the FCC rules. Applicant further certifies that no 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 is installed in the equipment being certified. I HEREBY CERTIFY THAT I am authorized to make the representations above on behalf of the Applicant and agree to immediately notify Compliance Testing LLC if there is any change in the status identified above. James L Carter Director, Special Projects Telonics Inc 29 Oct 2025 TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

22 September 2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: Long-Term Confidentiality Request for GPSI-31 JYL-GPSI31 To Whom It May Concern: This letter serves as an official request for confidentiality under § 0.457(d) and § 0.459 of CFR 47. We have requested that the following documents required to be submitted with this application be permanently withheld from public review. • Block Diagram • Schematics • Theory of Operation • Tune Up Procedure • Parts List/BOM These documents contain detailed system and equipment descriptions and related information about the product, which manufacturer/applicant considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, manufacturer/applicant feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, James L Carter Director, Special Projects Telonics Inc TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

22 September 2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Short-Term Confidentiality Request for: GPSI-31 JYL-GPSI31 To Whom It May Concern: In accordance with sections 0.457 and 0.459 of CFR 47, Telonics Inc requests Short-Term Confidentiality for the following exhibits of this application for a period of 180 days after grant is issued: • Test setup photos • External photos • Internal photos • User’s manual These documents contain detailed system and equipment descriptions and related information about the product, which manufacturer/applicant considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, manufacturer/applicant feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Grantee will not market or distribute product during the Short-Term Confidentiality period requested. When the device is ready to be marketed the grantee will inform the TCB to release the Short-Term Confidentiality. Please contact me if there is any information you may need. Sincerely, James L Carter Director, Special Projects Telonics Inc TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

22 September 2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, James L Carter Director, Special Projects Telonics Inc 932 E Impala Ave Mesa, AZ 85204 TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

30 Sep 2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: Request for Modular Approval GPSI-31 / JYL-GPSI31: To Whom It May Concern: We are requesting Single Modular Approval. In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Equipment Authorization Guide (current version), Telonics Inc GPSI-31 has been examined against the following requirements: Essential Elements of 15.212(a)(1) Yes No The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly X The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal X The module must contain power supply regulation on the module X The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) X The module must demonstrate compliance in a stand-alone configuration X The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements) X The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee X The module must comply with RF exposure requirements X Please contact me if there is any information you may need. Sincerely, James L Carter Director, Special Projects Telonics Inc TELEMETRY-ELECTRONICS CONSULTANTS 932 E. IMPALA AVENUE  MESA, ARIZONA 85204-6699 U.S.A. TEL (480) 892-4444  FAX (480) 892-9139 E-MAIL [email protected] www.telonics.com

p2590008_FCC_Part 1.1310_Rev 1.0 Page 1 of 6 Test Report Prepared for: Telonics Inc Model: GPSI-31 Description: Globalstar Simplex Transmitter Module Project No: p2590008 Serial Number: 760627A FCC ID: JYL-GPSI31 To FCC Part 1.1310 FCC Part 2.1091 Date of Issue: September 30, 2025 On behalf of the applicant: Telonics Inc 932 E Impala Ave Mesa AZ 85204 Attention of: James Carter Ph: 480 892 4444 E-mail: [email protected] Prepared By: Compliance Testing, LLC Mesa, AZ 85204 (480) 926-3100 phone / (480) 926-3598 fax www.compliancetesting.com ANAB Cert#: AT-2901 FCC Site Reg. #750616 ISED Site Reg. #2044A-2 Reviewed / Authorized By: Harshith Devaraja EMC Engineer This report may not be reproduced, except in f ull, without written permission f rom Compliance Testing All results contained herein relate only to the sample tested p2590008_FCC_Part 1.1310_Rev 1.0 Page 2 of 6 Test Report Revision History Revision Date Revised By Reason for Revision 1.0 September 30, 2025 Harshith Devaraja Original Document Current revision of the test report replaces any prior versions. Only the current version of the test report is valid. p2590008_FCC_Part 1.1310_Rev 1.0 Page 3 of 6 EUT Description Model: GPSI-31 Serial: 760627A Firmware: uGPSI-31 devel uGPSI-31 2025.09.16 19:18:01 Description: Globalstar Simplex Transmitter Module Additional Information: Radio Frequency Range and Operational Info: 1611.25 – 1618.75 MHz Modulation Type: BPSK FCC Emission designator: 2M50G1D Antenna Gain = 2 dBi Usage: Mobile Receipt of Sample(s): September 22,2025 EUT Condition: Visual Damage No State of Development Production/Production Equivalent p2590008_FCC_Part 1.1310_Rev 1.0 Page 4 of 6 Average Power calculations Average Power = Peak Power * duty-cycle% Tuned Frequency (MHz) Conducted Peak Output Power (dBm) Duty Cycle (%) Average Power (mW) 1611.25 18.93 100 78.1 1613.75 20.36 100 108.6 1616.25 20.21 100 104.9 1618.75 20.16 100 103.8 p2590008_FCC_Part 1.1310_Rev 1.0 Page 5 of 6 MPE Evaluation This is a f ixed device used in Uncontrolled Exposure environment. Limits Controlled Exposure 47 CFR 1.1310 Table 1, (A) 0.3-3.0 MHz: Limit [mW/cm²] = 100 3.0-30 MHz: Limit [mW/cm²] = (900/f ²) 30-300 MHz: Limit [mW/cm²] = 1.0 300-1500 MHz: Limit [mW/cm²] = f /300 1500-100,000 MHz Limit [mW/cm²] = 5 Limits Uncontrolled Exposure 47 CFR 1.1310 Table 1, (B) 0.3-1.234 MHz: Limit [mW/cm²] = 100 1.34-30 MHz: Limit [mW/cm²] = (180/f ²) 30-300 MHz: Limit [mW/cm²] = 0.2 300-1500 MHz: Limit [mW/cm²] = f /1500 1500-100,000 MHz Limit [mW/cm²] = 1.0 Test Data Test Frequency, MHz 1613.75 Power, Radiated, mW (P) 108.6 Antenna Gain Isotropic 2 dBi Antenna Gain Numeric (G) 1.58 Distance (R) 20 cm 푆= 푃∗퐺 4휋푟 2 Power Density (S) mw/cm 2 Power Density (S) = 0.03413 mw/cm 2 Limit = (f rom above table) = 1.0 mw/cm 2 p2590008_FCC_Part 1.1310_Rev 1.0 Page 6 of 6 Determination of Exemption 47 CFR 2.1091 (c)(1) ERP20cm = 3060 mW Separation distance (d) = 20 cm Pth = 3060 mW Average power of the EUT = 108.6 mW The fixed EUT is exempt from the obligation to perform a routine environmental evaluation to demonstrate compliance with the RF exposure limits in § 1.1310 shown above. END OF TEST REPORT

P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 1 of 67 Test Report Prepared for: Telonics Inc Model: GPSI-31 Serial Number: 760627A Project No: p2590008 FCC ID: JYL-GPSI31 IC ID: 4610A-GPSI31 To FCC Part 25 And RSS Gen Issue 5 (April 2018) RSS-170: Issue 4 (Sept 2022) Test Results: Pass Date of Issue: September 26, 2025 On behalf of the applicant: Telonics Inc 932 E Impala Ave Mesa AZ 85204 Attention of: James Carter Ph: 480 892 4444 E-mail: [email protected] Prepared By: Compliance Testing, LLC Mesa, AZ 85204 (480) 926-3100 phone / (480) 926-3598 fax www.compliancetesting.com ANAB Cert#: AT-2901 FCC Site Reg. #750616 ISED Site Reg. #2044A-2 Reviewed / Authorized By: Harshith Devaraja, EMC Engineer This report may not be reproduced, except in full, without written permission from Compliance Testing. All results contained herein relate only to the sample tested. All samples were selected by the customer. P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 2 of 67 Test Results Summary Test Date Range: September 24, 2025- September 26, 2025 Specification Test Name Result Comments FCC RSS 2.1049 RSS – Gen 6.7 Occupied Bandwidth N/A 25.204, RSS 170 Section 5.5 Transmitter Output Power Pass 25.202(f ) RSS 170 Section 5.5 Spurious Emissions at Antenna Terminals Pass 25.202(f ) RSS 170 Section 5.8 Field Strength of Spurious radiation Pass 25.216 RSS 170 Section 5.9 Emissions f rom Mobile Earth Stations f or Protection of Aeronautical Radionavigation Satellite Service (Additional unwanted emission limits f or MESs to protect radionavigation-satellite service) Pass 25.202(f ), RSS 170 Sections 5.8 Emission Mask Pass 25.202(d) RSS 170 Section 5.3 Frequency Stability vs Temperature and Voltage Pass Method Deviations/Additions: No Statements of conf ormity are reported as: • Pass - the measured value is below the acceptance limit, acceptance limit = test limit. • Fail - the measured value is above the acceptance limit, acceptance limit = test limit. References/Methods Description ANSI C63.26-2015 Method and Measurements of Transmitters Used in Licensed Radio Services. ISO/IEC 17025:2017 General requirements for the Competence of Testing and Calibrations Laboratories P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 3 of 67 Table of Contents Description Page Test Results Summary ....................................................................................................... 2 Test Report Revision History ............................................................................................... 4 EUT Description ................................................................................................................ 5 Test and Measurement Data ............................................................................................... 7 Test Setup and Modes of Operation ..................................................................................... 8 Transmitter Output Power ................................................................................................... 9 Spurious Emissions at Antenna Terminal .............................................................................10 Radiated Spurious Emissions .............................................................................................15 Emissions at Band Edges ..................................................................................................32 Emission Mask .................................................................................................................53 Occupied Bandwidth .........................................................................................................58 Frequency Stability ...........................................................................................................64 Test Equipment Utilized .....................................................................................................67 Measurement Uncertainty ..................................................................................................67 P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 4 of 67 Test Report Revision History Revision Date Revised By Reason for Revision 1.0 September 26, 2025 Harshith Devaraja Original Document Current revision of the test report replaces any prior versions. Only the current version of the test report is valid. P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 5 of 67 EUT Description Model: GPSI-31 Serial: 760627A Firmware: uGPSI-31 devel uGPSI-31 2025.09.16 19:18:01 Description: Globalstar Simplex Transmitter Module Additional Information: Radio Frequency Range and Operational Info: 1611.25 – 1618.75 MHz Modulation Type: BPSK FCC Emission designator: 2M50G1D FCC ID: JYL-GPSI31 IC ID: 4610A-GPSI31 Antenna Gain = 2 dBi Usage: Mobile Receipt of Sample(s): September 22, 2025 EUT Condition: Visual Damage No State of Development Production/Production Equivalent P2590008_FCC_Part 25 _RSS170_Rev 1.0 Page 6 of 67 The applicant has been cautioned as to the following 15.21 - Information to User The user’s manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 15.27(a) - Special Accessories Equipment marked to a consumer must be capable of complying with the necessary regulations in the conf iguration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer without an additional charge. Inf ormation detailing any …

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