2BR8Z-ER2025AER2025

400 W CALIFORNIA AVENUE SUNNYVALE CALIFORNIA 94086 US AGENT DESIGNATION FOR SERVICE OF PROCESS (Applicants are BOTH Grantee and US Agent) Date: July 29, 2026 TO: Element Materials Technology Washington DC LLC (formerly PCTEST) Telecommunication Certification Body (TCB) Division 7185 Oakland Mills Road Columbia, MD 21046 RE: FCC Certification - Per 47CFR §2.911(d)(7) This letter is to confirm that the Applicant will also serve as U.S. Agent for Service of Process as required by 47CFR §2.911(d)(7). The Applicant acknowledges that they must maintain an agent in the US 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 changes. APPLICANT / US AGENT INFORMATION FCC Registration Number (FRN): 0035346998 Company Name: Eridan Communications, Inc. Grantee Code: 2BR8Z Contact Person: Paul Draxler, Ph.D. Company Address: 400 W. California Ave., Sunnyvale, CA 94086 Telephone No: (619) 977-5447 Email: [email protected] Applicant Signature Paul Draxler Name (Type or Print) Vice President of Technology Title July 29, 2026 Date

FCC 2.911(d)(5) Covered List Attestation v1.0_08282024 400 W CALIFORNIA AVENUE SUNNYVALE CALIFORNIA 94086 Date: July 29, 2026 Element Materials Technology Washington DC LLC (formerly PCTEST) Telecommunication Certification Body (TCB) Division 7185 Oakland Mills Road Columbia, MD 21046 RE: Covered List Equipment for FCC ID: 2BR8Z-ER2025A To whom it may concern: 1. Per 47 CRF Section 2.911(d)(5)(i) Eridan Communications, 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. Note: If the equipment for which the applicant seeks authorization IS produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not “covered” equipment. Additional Explanation: N/A 2. Per 47 CRF Section 2.911(d)(5)(ii) Eridan Communications, Inc. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant ☐ IS /  IS NOT identified on the Covered List as an entity producing “covered” equipment. 3. Per KDB 986446 D01 v03 section B, 2a, Eridan Communications, Inc. (“the applicant”) certifies that the equipment for this application does not contain cybersecurity and 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. Thank you, Signature Paul Draxler Vice President of Technology Eridan Communications, Inc.

400 W CALIFORNIA AVENUE SUNNYVALE CALIFORNIA 94086 Date: August 5, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Subject: Application for Original Equipment Certification under FCC ID 2BR8Z-ER2025A for Eridan ER2025. The Eridan ER2025 is the subject of this application for a new FCC Product Certification under FCC ID: 2BR8Z-ER2025A. The ER2025 is a 5G-NR radio and operates in Band 41 Broadband Radio Service (BRS) spectrum (2496-2690 MHz). The key data are summarized below. FCC ID 2BR8Z-ER2025A FCC Rules Part 27 Frequency Range Band 41, 2496-2690 MHz Sincerely, Signature Paul Draxler, Vice President of Technology Eridan Communications, Inc.

400 W CALIFORNIA AVENUE SUNNYVALE CALIFORNIA 94086 Fccconfidentiality_230915 Date: July 29, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Confidentiality for FCC ID: 2BR8Z-ER2025A To Whom It May Concern: Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, Eridan Communications, Inc. hereby requests confidential treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give Element Materials Technology temporary confidentiality of commercially sensitive information prior to product release. The requested Long-Term and Short-Term Confidential exhibits are listed as follows: CONFIDENTIAL LIST Exhibit Description LONG-TERM 1 Block Diagram 2 Operational Descriptions 3 Parts Lists and Tune-Up Procedure 4 Schematics SHORT-TERM 5 External Photos 6 Internal Photos 7 Test-Setup Photos 8 User’s Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely, Signature Paul Draxler, Vice President of Technology Eridan Communications, Inc.

This report must not be used to claim product certification, approval, or endorsement by A2LA, NIST, or any agency of the U.S. Government. This Report shall not be reproduced, except in full without written approval of the laboratory. This report is Blockchain Verified. To verify the report’s authenticity, please visit https://www.blockchain-verified.com/ or by clicking the logo to the right. Eridan Communications, Inc. ER2025 FCC 2.1091:2026 Cellular Report: PCTE0097.3 Rev. 01, Issue Date: August 20, 2026 TABLE OF CONTENTS 2023.04.17 Section Page Number Certificate of Evaluation .................................................................................. 3 Revision History .............................................................................................. 4 Facilities .......................................................................................................... 5 Product Description ......................................................................................... 6 Exposure Condition ......................................................................................... 7 Maximum Permissible Exposure ..................................................................... 8 End of Report .................................................................................................. 11 Report No. PCTE0097.3 Rev 012/11 CERTIFICATE OF EVALUATION 2018-09-14 EXRPT.2025.09.03.0 Product compliance is the responsibility of the client; therefore, the tests and equipment modes of operation represented in this report were agreed upon by the client, prior to testing. The results of this test pertain only to the sample(s) tested. The specific description is noted in each of the individual sections of the test report supporting this certificate of test. This report reflects only those tests from the referenced standards shown in the certificate of test. It does not include inspection or verification of labels, identification, marking or user information. As indicated in the Statement of Work sent with the quotation, Element’s standard process is to always use the latest published version of the test methods even when earlier versions are cited in the test specification. Issuance of a purchase order was de facto acceptance of this approach. Otherwise, the client would have advised Element in writing of the specific version of the test methods they wanted applied to the subject testing Last Date of Evaluation: August 12, 2026 Eridan Communications, Inc. EUT: ER2025 RF Exposure Evaluation Standards Specification Method FCC 2.1091:2026 FCC 447498 D01 General RF Exposure Guidance v06 Results Method Clause Description Applied Results Comments 7.1 Maximum Permissible Exposure Yes Pass The assessment required separation distance greater than 20 cm to meet RF exposure limits. Consequently, the RF exposure assessment must be referenced during installation to ensure the evaluated separation distance is maintained and the deployed configuration remains compliant with applicable RF exposure requirements. Deviations From Evaluation Standards None Approved By: David Schaefer, Technical Manager Report No. PCTE0097.3 Rev 013/11 REVISION HISTORY 2025.07.22 Revision Number Description Date (yyyy-mm-dd) Page Number 01 Revised to use rated power value instead of measured values, clarified exposure condition 2026-08-12 3, 6, 7, 10 Report No. PCTE0097.3 Rev 014/11 FACILITIES 2025.07.17 Testing was performed at the following location(s) Location Labs (1) Address A2LA (2) ISED (3) BSMI (4) VCCI (5) CAB FDA (6) ☐ California OC01-17 41 Tesla Irvine, CA 92618 (949) 861-8918 3310.04 2834B SL2-IN-E-1154R A-0029 US0158 TL-55 ☐ Minnesota MN01-11 9349 W Broadway Ave. Brooklyn Park, MN 55445 (612) 638-5136 3310.05 2834E SL2-IN-E-1152R A-0109 US0175 TL-57 ☒ Oregon EV01-12 6775 NE Evergreen Pkwy #400 Hillsboro, OR 97124 (503) 844-4066 3310.02 2834D SL2-IN-E-1017 A-0108 US0017 TL-56 ☐ Washington NC01-05 19201 120th Ave NE Bothell, WA 98011 (425) 984-6600 3310.06 2834F SL2-IN-E-1153R A-0110 US0157 TL-67 ☐ Offsite N/A See Product Description N/A N/A N/A N/A N/A N/A See data sheets for specific labs (1) The lab designations denote individual rooms within each location. (OC01, OC02, OC03, etc.) (2) A2LA Certificate No. (3) ISED Company No. (4) BSMI No. (5) VCCI Site Filing No. (6) FDA ASCA No. Report No. PCTE0097.3 Rev 015/11 PRODUCT DESCRIPTION 2018-07-17 Client and Equipment Under Evaluation Information Company Name: Eridan Communications, Inc. Address: 400 W California Ave City, State, Zip: Sunnyvale, CA 94086 Evaluation Requested By: Kenneth Karru-Olsen EUT: ER2025 Date of Evaluation: 8/5/2026 Information Provided by the Party Requesting the Evaluation Functional Description of the Equipment: Cellular basestation band n41, technical specs: 5G, 2T2R, one carrier, Bandwidths 20MHz and 40MHz, Up to 256 QAM, Output power 23.5 dBm ± 2 dB. Note: For this MIMO device, the RF exposure assessment was based on the summed conducted power of both transmit ports. Objective: To demonstrate compliance with FCC requirements for RF exposure for 2.1091 mobile/fixed devices Report No. PCTE0097.3 Rev 016/11 RF EXPOSURE CONDITION 2018-07-17 The following RF Exposure conditions were used for the assessment documented in this report: Intended Use Mobile Location on Body (if applicable) N/A How is the Device Used Fixed location, pole mounted Radios Contained in the Same Host Device Cellular Simultaneous Transmitting Radios None Body Worn Accessories N/A Environment General Population/Uncontrolled Exposure Report No. PCTE0097.3 Rev 017/11 MAXIMUM PERMISSIBLE EXPOSURE (MPE) EXRPT.2025.09.03.0 OVERVIEW Human exposure to RF emissions from mobile devices (47 CFR §2.1091) may be evaluated based on the MPE limits adopted by the FCC for electric and magnetic field strength and/or power density, as appropriate, since exposures are assumed to occur at distances of 20 cm or more from persons. IEEE C95.1:2019 specifies a minimum sepa…

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SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS TbtTx 2026.02.05.0 WTD.2025.08.28.0 TEST DESCRIPTION Testing was performed using the mode(s) of operation and configuration(s) noted within the report. The individuals and/or the organization requesting the test provided the modes, configurations and settings used to complete the evaluation. The actual test parameters are specified in the test data, this includes items such as investigated frequency range (scanned) and test levels. The testing methods and performance specifications, as well as the test site used for the evaluation are indicated in the test data. Limits: 47 CFR 27.53(m)(2) For digital base stations, the attenuation shall be not less than 43 + 10 log (P) dB Method: ANSI C63.26:2015, Clause 5.7.1 The measurement was made using a direct connection between the RF output of the EUT and a spectrum analyzer. While transmitting at full power, the spectrum was scanned from the lowest frequency generated by the equipment to the 10 th harmonic. The spectrum analyzer was configured to the following settings: Frequency Range: 9 kHz – 30 MHz  Detector = RMS Avg  RBW = 10 kHz  VBW = 100 kHz  Trace Mode = Max Hold  Number of points ≥ 2 * span / RBW  Sweep Time = 2 * ( Number of Points ) * (Transmitter Period )  Marker was placed on the largest Emission  A correction factor was applied the measured value 1 1. Correction factor is the sum of: a. Measurement bandwidth correction = 10 * log [ Reference Bandwidth / Measurement Bandwidth ] = 10 * log [ 1 MHz / 0.01 MHz ] = 20 dB b. Duty cycle correction factor = 10 * log [ 1 / duty cycle ] = 10 * log [ 1 / 0.74 ] = 1.3 dB Frequency Range: 30 MHz – 27 GHz  Detector = Peak  RBW = 1 MHz  VBW = 3 MHz  Trace Mode = Max Hold  Sweep Time = Auto  Trace was allowed to stabilize  A marker was place on the largest emission in the span of the measurement The reference level offset for screen capture(s) uses an internal transducer factor on the analyzer to correct the displayed trace based on the cable loss over frequency. The reference level offset for the additional screen capture(s) is then based on the expected attenuator value. As outlined in FCC KDB 662911, clause 3(a)(iii) - radios with multiple outputs require an additional 10*log(N out ) dB, where N is the number of outputs shall be added to the measured results. For this device, N = 2. Giving 10*log( 2 ) = 3 dB. Screen capture(s) Offset = “Internal” cable loss factor not shown on screen capture + Ref Lvl Offset showing expected attenuator value and MIMO correction factor of 3 dB. Notes 1. As outlined in in ANSI C63.26:2015, Clause 5.7.2(e), to show compliance for a given EBW, testing was limited to the worst case mode. a. For 20 MHz BW, two modes were selected. The mode that yielded the highest output power and the mode that yielded the largest 99% OBW. b. For 40 MHz BW, two modes were selected. The mode that yielded the highest output power and the mode that yielded the largest 99% OBW. Report No. PCTE0097.1 Rev. 0141/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS TbtTx 2026.02.05.0 WTD.2025.08.28.0 TEST EQUIPMENT Description Manufacturer Model ID Last Cal. Cal. Due Analyzer - Spectrum Analyzer Keysight N9010A AFO 2026-02-26 2027-02-26 Generator - Signal Agilent N5181A TIG 2026-04-16 2029-04-16 Cable Micro-Coax UFD150A-1-0720-200200 EVI 2026-04-02 2027-04-02 Attenuator S.M. Electronics SA26B-20 AWU 2026-03-31 2027-03-31 Attenuator S.M. Electronics SA26B-20 AUY 2026-04-02 2027-04-02 Report No. PCTE0097.1 Rev. 0142/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS TbtTx 2026.02.05.0 WTD.2025.08.28.0 EUT: ER2025 Work Order: PCTE0097 Serial Number: ER003A-2612061006 Date: 2026-08-18 Customer: Eridan Communications, Inc. Temperature: 22.3°C Attendees: None Relative Humidity: 47.6% Customer Project: None Bar. Pressure (PMSL): 1017.3 mbar Tested By: Jeff Alcoke Job Site: EV06 Power: -48 VDC via 110VAC/60Hz Configuration: PCTE0097-3 COMMENTS A 50 Ohm load was connected to the port that was not under test. DEVIATIONS FROM TEST STANDARD None CONCLUSION Pass Tested By TEST RESULTS Frequency Measured Max Value Correction Max Value Limit Range Freq (MHz) (dBm) Factor (dB) (dBm) ≤ (dBm) Result MIMO, ANT Port 1 16-QAM, 20 MHz BW Low Ch. 2506 MHz 9 kHz - 30 MHz 0.584 -36.99 21.3 -15.69 -13 Pass 30 MHz - 2.491 GHz 2389.76 -22.03 0 -22.03 -13 Pass 2.696 GHz - 15 GHz 13621.62 -21.25 0 -21.25 -13 Pass 15 GHz - 27 GHz 26186.52 -16.91 0 -16.91 -13 Pass Mid Ch. 2593 MHz 9 kHz - 30 MHz 0.579 -37.28 21.3 -15.98 -13 Pass 30 MHz - 2.491 GHz 2478.11 -23.14 0 -23.14 -13 Pass 2.696 GHz - 15 GHz 10370.57 -21.87 0 -21.87 -13 Pass 15 GHz - 27 GHz 25545.09 -16.86 0 -16.86 -13 Pass High Ch. 2680 MHz 9 kHz - 30 MHz 0.579 -37.52 21.3 -16.22 -13 Pass 30 MHz - 2.491 GHz 2474.31 -23.39 0 -23.39 -13 Pass 2.696 GHz - 15 GHz 3777.52 -21.75 0 -21.75 -13 Pass 15 GHz - 27 GHz 26442.4 -17.25 0 -17.25 -13 Pass Single PRB 256-QAM, 20 MHz BW Low Ch. 2506 MHz 9 kHz - 30 MHz 0.089 -38.26 21.3 -16.96 -13 Pass 30 MHz - 2.491 GHz 2472.11 -23.43 0 -23.43 -13 Pass 2.696 GHz - 15 GHz 10576.98 -21.66 0 -21.66 -13 Pass 15 GHz - 27 GHz 26219.17 -16.73 0 -16.73 -13 Pass Mid Ch. 2593 MHz 9 kHz - 30 MHz 0.089 -38.09 21.3 -16.79 -13 Pass 30 MHz - 2.491 GHz 2473.71 -23.57 0 -23.57 -13 Pass 2.696 GHz - 15 GHz 13600.13 -21.75 0 -21.75 -13 Pass 15 GHz - 27 GHz 24012.67 -17.43 0 -17.43 -13 Pass High Ch. 2680 MHz 9 kHz - 30 MHz 0.089 -38.13 21.3 -16.83 -13 Pass 30 MHz - 2.491 GHz 2424.94 -23.65 0 -23.65 -13 Pass 2.696 GHz - 15 GHz 14477.73 -21.64 0 -21.64 -13 Pass 15 GHz - 27 GHz 25301.87 -16.83 0 -16.83 -13 Pass Report No. PCTE0097.1 Rev. 0143/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS TbtTx 2026.02.05.0 WTD.2025.08.28.0 Frequency Measured Max Value Correction Max Value Limit Range Freq (MHz) (dBm) Factor (dB) (dBm) ≤ (dBm) Result Boosted RBs QPSK, 40 MHz BW Low Ch. 2516 MHz 9 kHz - 30 MHz 0.584 -37.51 21.3 -16.21 -13 Pass 30 MHz - 2.491 GHz 2476.91 -20.68 0 -20.68 -13 Pass 2.691 GHz - 15 GHz 13952.59 -21…

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SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS – BAND EDGE TbtTx 2026.02.05.0 WTD.2025.08.28.0 TEST DESCRIPTION Testing was performed using the mode(s) of operation and configuration(s) noted within the report. The individuals and/or the organization requesting the test provided the modes, configurations and settings used to complete the evaluation. The actual test parameters are specified in the test data, this includes items such as investigated frequency range (scanned) and test levels. The testing methods and performance specifications, as well as the test site used for the evaluation are indicated in the test data. Limits: 47 CFR 27.53(m)(2) For digital base stations, the attenuation shall be not less than 43 + 10 log (P) dB Method: ANSI C63.26:2015, Clause 5.7.3 The measurement was made using a direct connection between the RF output of the EUT and a spectrum analyzer. The EUT was configured to transmit at full power. The spectrum analyzer was configured to the following settings:  Start and stop frequencies were set such that the band edge would be placed in the center of the plot  The span was set large enough to capture all out-of-band emissions near the band edge  Detector = PK  RBW = 1 MHz  VBW = 3 MHz  Trace mode = max hold  Sweep time = Auto  100 traces were held  A marker was then placed at the largest emission in the span of the measurement Measurements within 1 MHz the band edge were further investigated using the following settings:  Detector = RMS Avg  RBW = at least 1% of the emission bandwidth*  VBW ≥ 3x RBW  Trace Mode = Max Hold for 100 traces  Number of points ≥ 2 * span / RBW  Sweep Time = 2 * ( Number of Points ) * (Transmitter Period )  Marker was placed on the largest Emission  A duty cycle correction factor was then applied to the measurement. Duty cycle correction factor = 10 * log [ 1 / duty cycle ] = 10 * log [ 1 / 0.74 ] = 1.3 dB *47 CFR 27.53(m)(6) Measurement procedure. Compliance with these rules is based on the use of measurement instrumentation employing a resolution bandwidth of 1 megahertz or greater. However, in the 1 MHz bands immediately outside and adjacent to the frequency block a resolution bandwidth of at least one percent of the emission bandwidth of the fundamental emission of the transmitter may be employed The reference level offset for screen capture(s) uses an internal transducer factor on the analyzer to correct the displayed trace based on the cable loss over frequency. The reference level offset for the additional screen capture(s) is then based on the expected attenuator value. As outlined in FCC KDB 662911, clause 3(a)(iii) - radios with multiple outputs require an additional 10*log(N out ) dB, where N is the number of outputs shall be added to the measured results. For this device, N = 2. Giving 10*log( 2 ) = 3 dB. Screen capture(s) Offset = “Internal” cable loss factor not shown on screen capture + Ref Lvl Offset showing expected attenuator value and MIMO correction factor. Report No. PCTE0097.1 Rev. 0170/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS – BAND EDGE TbtTx 2026.02.05.0 WTD.2025.08.28.0 Notes 1. As outlined in in ANSI C63.26:2015, Clause 5.7.2(e), to show compliance for a given EBW, testing was limited to the worst case mode. a. For 20 MHz BW, two modes were selected. The mode that yielded the highest output power and the mode that yielded the largest 99% OBW. b. For 40 MHz BW, two modes were selected. The mode that yielded the highest output power and the mode that yielded the largest 99% OBW. TEST EQUIPMENT Description Manufacturer Model ID Last Cal. Cal. Due Analyzer - Spectrum Analyzer Keysight N9010A AFO 2026-02-26 2027-02-26 Generator - Signal Agilent N5181A TIG 2026-04-16 2029-04-16 Cable Micro-Coax UFD150A-1-0720-200200 EVI 2026-04-02 2027-04-02 Attenuator S.M. Electronics SA26B-20 AWU 2026-03-31 2027-03-31 Attenuator S.M. Electronics SA26B-20 AUY 2026-04-02 2027-04-02 Report No. PCTE0097.1 Rev. 0171/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS – BAND EDGE TbtTx 2026.02.05.0 WTD.2025.08.28.0 EUT: ER2025 Work Order: PCTE0097 Serial Number: ER003A-2612061006 Date: 2026-08-18 Customer: Eridan Communications, Inc. Temperature: 22.4°C Attendees: None Relative Humidity: 47.7% Customer Project: None Bar. Pressure (PMSL): 1013.9 mbar Tested By: Jeff Alcoke Job Site: EV06 Power: -48 VDC via 110VAC/60Hz Configuration: PCTE0097-3 COMMENTS A 50 Ohm load was connected to the port that was not under test. DEVIATIONS FROM TEST STANDARD None CONCLUSION Pass Tested By TEST RESULTS Frequency Measured DCCF Measured (MHz) Value (dB) Value Limit Result MIMO, ANT Port 1 16-QAM, 20 MHz BW Low Ch. 2506 MHz 2495.00 -29.00 0.0 -29.0 -13 Pass 2496.00 -30.22 1.3 -28.9 -13 Pass High Ch. 2680 MHz 2691.00 -29.24 0.0 -29.2 -13 Pass 2690.00 -28.35 1.3 -27.1 -13 Pass Single PRB 256-QAM, 20 MHz BW Low Ch. 2506 MHz 2494.88 -29.93 0.0 -29.9 -13 Pass 2496.00 -29.97 1.3 -28.7 -13 Pass High Ch. 2680 MHz 2691.08 -28.72 0.0 -28.7 -13 Pass 2690.00 -32.00 1.3 -30.7 -13 Pass Boosted RBs QPSK, 40 MHz BW Low Ch. 2516 MHz 2494.59 -29.58 0.0 -29.6 -13 Pass 2496.00 -31.95 1.3 -30.7 -13 Pass High Ch, 2670 MHz 2692.88 -30.09 0.0 -30.1 -13 Pass 2690.00 -34.04 1.3 -32.7 -13 Pass Single PRB 256-QAM, 40 MHz BW Low Ch. 2516 MHz 2495.00 -29.88 0.0 -29.9 -13 Pass 2496.00 -30.48 1.3 -29.2 -13 Pass High Ch, 2670 MHz 2691.00 -29.10 0.0 -29.1 -13 Pass 2690.01 -31.90 1.3 -30.6 -13 Pass MIMO, ANT Port 2 16-QAM, 20 MHz BW Low Ch. 2506 MHz 2494.92 -30.45 0.0 -30.5 -13 Pass Report No. PCTE0097.1 Rev. 0172/82 SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS – BAND EDGE TbtTx 2026.02.05.0 WTD.2025.08.28.0 Frequency Measured DCCF Measured (MHz) Value (dB) Value Limit Result 2496.00 -29.06 1.3 -27.8 -13 Pass High Ch. 2680 MHz 2691.16 -28.98 0.0 -29.0 -13 Pass 2690.00 -29.25 1.3 -28.0 -13 Pass Single PRB 256-QAM, 20 MHz BW Low Ch. 2506 MHz 2494.96 -30.81 0.0 -30.8 -13 Pass 2496.00 -30.81 1.3 -29.5 -13 Pass High Ch. 2680 MHz 2691.00 -39.35 0.0 -39.4 -13 Pass 2690.00 -33.3…

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This report is Blockchain Verified. To verify the report’s authenticity, please visit https://www.blockchain-verified.com/ or by clicking the logo to the right. Eridan Communications, Inc. ER2025 FCC 27:2026 Cellular Radio Report: PCTE0097.1 Rev. 01, Issue Date: August 20, 2026 TABLE OF CONTENTS 2023.04.17 Section Page Number Certificate of Test ............................................................................................ 3 Revision History .............................................................................................. 4 Facilities .......................................................................................................... 5 Measurement Uncertainty ............................................................................... 6 Test Setup Block Diagrams ............................................................................. 7 Product Description ......................................................................................... 10 Power Settings and Antennas ......................................................................... 11 Configurations ................................................................................................. 13 Modifications ................................................................................................... 15 Conducted Output Power ................................................................................ 16 Duty Cycle ....................................................................................................... 19 Occupied Bandwidth Emission Mask .............................................................. 24 Spurious Radiated Emissions ......................................................................... 30 Frequency Stability .......................................................................................... 36 Spurious Emissions at the Antenna Terminals ................................................ 41 Spurious Emissions at the Antenna Terminals - Band Edge ........................... 70 End of Report .................................................................................................. 82 Report No. PCTE0097.1 Rev. 012/82 CERTIFICATE OF TEST 2022.04.01 Product compliance is the responsibility of the client; therefore, the tests and equipment modes of operation represented in this report were agreed upon by the client, prior to testing. The results of this test pertain only to the sample(s) tested. The specific description is noted in each of the individual sections of the test report supporting this certificate of test. This report reflects only those tests from the referenced standards shown in the certificate of test. It does not include inspection or verification of labels, identification, marking or user information. As indicated in the Statement of Work sent with the quotation, Element’s standard process is to always use the latest published version of the test methods even when earlier versions are cited in the test specification. Issuance of a purchase order was de facto acceptance of this approach. Otherwise, the client would have advised Element in writing of the specific version of the test methods they wanted applied to the subject testing. Last Date of Test: August 18, 2026 Eridan Communications, Inc. EUT: ER2025 Radio Equipment Testing Standards Specification Method FCC 27:2026 ANSI C63.26:2015 Results Test Description Result Specification Section(s) Method Section(s) Comments Conducted Output Power Pass 2.1046, 27.50(h) 5.2.4.2 Duty Cycle Pass 2.1046 5.2.4.2 Occupied Bandwidth Emission Mask Pass 2.1049, 22.917, 24.238, 27.53 5.4 Spurious Radiated Emissions Pass 2.1053, 27.53(m)(4) 5.5 Frequency Stability Pass 2.1055, 22.355, 24.235, 27.54 5.6 Spurious Emissions at the Antenna Terminals Pass 2.1051, 27.53(m)(2) 5.7 Spurious Emissions at the Antenna Terminals - Band Edge Pass 2.1051, 27.53(m)(2) 5.7 Deviations From Test Standards None Approved By: Cole Ghizzone, Operations Manager Signed for and on behalf of Element Report No. PCTE0097.1 Rev. 013/82 REVISION HISTORY 2025.07.22 Revision Number Description Date (yyyy-mm-dd) Page Number 00 None 01 Added spurious conducted emissions data for antenna port 2. 2026-08-18 43-56 Added band edge data for antenna port 2 58-60 Added additional measurements for emissions within 1 MHz of the band edge. 58-60 Updated test description for measurement method used for measurements within 1 MHz of the band edge. 57 Updated the last date of test 3, 10 Updated modifications log 15 Report No. PCTE0097.1 Rev. 014/82 FACILITIES 2025.07.17 Testing was performed at the following location(s) Location Labs (1) Address A2LA (2) ISED (3) BSMI (4) VCCI (5) CAB FDA (6) ☐ California OC01-17 41 Tesla Irvine, CA 92618 (949) 861-8918 3310.04 2834B SL2-IN-E-1154R A-0029 US0158 TL-55 ☐ Minnesota MN01-11 9349 W Broadway Ave. Brooklyn Park, MN 55445 (612) 638-5136 3310.05 2834E SL2-IN-E-1152R A-0109 US0175 TL-57 ☒ Oregon EV01-12 6775 NE Evergreen Pkwy #400 Hillsboro, OR 97124 (503) 844-4066 3310.02 2834D SL2-IN-E-1017 A-0108 US0017 TL-56 ☐ Washington NC01-05 19201 120th Ave NE Bothell, WA 98011 (425) 984-6600 3310.06 2834F SL2-IN-E-1153R A-0110 US0157 TL-67 ☐ Offsite N/A See Product Description N/A N/A N/A N/A N/A N/A See data sheets for specific labs (1) The lab designations denote individual rooms within each location. (OC01, OC02, OC03, etc.) (2) A2LA Certificate No. (3) ISED Company No. (4) BSMI No. (5) VCCI Site Filing No. (6) FDA ASCA No. Report No. PCTE0097.1 Rev. 015/82 MEASUREMENT UNCERTAINTY MU 2025-03-26 Measurement Uncertainty When a measurement is made, the result will be different from the true or theoretically correct value. The difference is the result of tolerances in the measurement system that cannot be completely eliminated. To the extent that technology allows us, it has been our aim to minimize this error. Measurement uncertainty is a statistical expression of measurement error qualified …

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