PCB-FA02Fathom Bluetooth Hub

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-06-2026 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: Wavetronix, LLC FCC ID: PCB-FA02 To whom it may concern, Wavetronix, LLC (“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 Eck Hardware Engineering Lead Wavetronix LLC 11 June 2026

663 Wavetronix Drive, Springville, UT 84663, US ! (801) 734-7200 ! www.wavetronix.com Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07-01-2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: PCB-FA02 Wavetronix, LLC (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Wavetronix, LLC FCC Grantee FRN: 0003793007 Address: 663 Wavetronix Dr. Springville, UT 84663 USA Contact Person: James Eck Email: [email protected] Sincerely, Wavetronix, LLC James Eck

27 May 2026 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 Eck Hardware Engineering Lead Wavetronix LLC

Date: 11 June 2026 Compliance Testing LLC 1724 S. Nevada Way Mesa, AZ 85204 RE: CONFIDENTIALITY REQUEST FOR 106-0043, FCC ID: PCB-FA02 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 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 • Parts List • Tune Up Info 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 Eck Hardware Engineering Lead Wavetronix LLC [email protected]

11 June 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: Short-Term Confidentiality Request for 106-0043, FCC ID: PCB-FA02 To Whom It May Concern: In accordance with sections 0.457 and 0.459 of CFR 47, Wavetronix LLC 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 Eck Hardware Engineering Lead Wavetronix LLC

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P2630015_FCC_MPE_Rev 2.0 Page 1 of 6 Test Report Prepared for: Wavetronix LLC Model: 106-0043 Serial Number: 106-0043-0000001 Project No: p2630015 FCC ID: PCB-FA02 To FCC Part 1.1310 FCC Part 2.1091 447498 D04 Interim General RF Exposure Guidance v01 Date of Issue: April 30, 2026 On behalf of the applicant: Wavetronix LLC 1827 W South Park Street Springville, UT 84663 Attention of: James Eck Ph: (801)- 407-9770 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 P2630015_FCC_MPE_Rev 2.0 Page 2 of 6 Test Report Revision History Revision Date Revised By Reason for Revision 1.0 April 30, 2026 Harshith Devaraja Original Document 2.0 July 22, 2026 Harshith Devaraja Antenna Gain and Calculations updated Current revision of the test report replaces any prior versions. Only the current version of the test report is valid. P2630015_FCC_MPE_Rev 2.0 Page 3 of 6 EUT Description Model: 106-0043 Serial: 106-0043-0000001 Firmware: host_test_LP_EM_CC2745R10_Q1_antSwitch_HIGH_ant2 Description: RV Bluetooth device to interface with the Fathom Tensor sensor Additional Information: Radio Frequency Range and Operational Info: 2.402 – 2.480 GHz BLE GFSK (1Mbps) Usage: Mobile The Bluetooth device contains two non-simultaneous transmission antennas controlled by an RF switch after the module RF Antenna 1 & RF Antenna 2 Receipt of Sample(s): April 06, 2026 EUT Condition: Visual Damage No State of Development Production/Production Equivalent P2630015_FCC_MPE_Rev 2.0 Page 4 of 6 Power calculations RF Antenna 1 gain = 4 dbi RF Antenna 2 gain = 4 dbi EIRP = Conducted peak power (dBm) + Antenna gain (dBi) RF Antenna 1 Tuned Frequency (MHz) Conducted Peak Output Power (dBm) Conducted Peak Output Power (mW) EIRP (dBm) EIRP (mW) 2402 0.69 1.172 4.69 2.9 2440 0.43 1.104 4.43 2.8 2480 0.17 1.039 4.17 2.6 RF Antenna 2 Tuned Frequency (MHz) Conducted Peak Output Power (dBm) Conducted Peak Output Power (mW) EIRP (dBm) EIRP (mW) 2402 1.36 1.367 5.36 3.4 2440 0.82 1.207 4.82 3.0 2480 0.25 1.059 4.25 2.7 P2630015_FCC_MPE_Rev 2.0 Page 5 of 6 MPE Evaluation This is a mobile 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/f²) 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/f²) 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 2402 Conducted peak Power, mW (P) 1.367 Antenna Gain Isotropic 4 dBi Antenna Gain Numeric (G) 2.51 Distance (R) 20 cm 푆= 푃∗퐺 4휋푟 2 Power Density (S) mw/cm 2 Power Density (S) = 0.000682 mw/cm 2 Limit = (from above table) = 1.0 mw/cm 2 P2630015_FCC_MPE_Rev 2.0 Page 6 of 6 Determination of Exemption 47 CFR 2.1091 (c)(1) ERP20cm = 3060 mW Separation distance (d) = 20 cm Pth = 3060 mW Tuned Frequency (MHz) Conducted Peak Output Power (dBm) Conducted Peak Output Power (mW) EIRP (dBm) EIRP (mW) ERP=EIRP-2.15 (dBm) ERP (mW) 2402 1.36 1.367 5.36 3.4 1.25 1.3 ERP of the EUT = 1.3 mW ERP EUT < Pth : Result:- Pass The EUT is SAR test exempt. END OF TEST REPORT

P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 1 of 55 Test Report Prepared for: Wavetronix LLC Model: 106-0001 Serial Number: 106-0043-0000001 Project No: p2630015 FCC ID: PCB-FA02 IC ID: 4513A-FA02 Test Results: Pass To FCC Part 15.247 & RSS Gen Issue 5 (April 2018) RSS-247 Issue 4 (July 2025) Date of Issue: April 30, 2026 On the behalf of the applicant: Wavetronix LLC 1827 W South Park Street Springville, UT 84663 Attention of: James Eck Ph: 801-407-9770 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 CAB US-ID: US0122 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. P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 2 of 55 Test Results Summary Test Date Range: April 06, 2026 – April 22, 2026 Specification Test Name Pass, Fail, N/A Comments FCC RSS 15.247(a)(2) RSS Gen 6.7 RSS 247 6.3.1(a) Occupied Bandwidth Pass 15.247(b)(3) RSS 247 6.3.2 Transmitter Output Power Pass 15.247(d) RSS 247 6.6 Conducted Spurious Emissions Pass 15.247(d), 15.209(a), 15.205 RSS Gen 8.9/8.10 RSS 247 6.6 Spurious Emissions Pass 15.247(e) RSS 247 6.3.1(b) Power Spectral density Pass 15.207 RSS Gen 8.8 A/C Powerline Conducted Emissions N/A Battery operated device 15.203 RSS Gen 6.8 Antenna Requirement Pass Method Deviations/Additions: No Statements of conformity 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 C63.4-2014 Method and Measurements of Radio-Noise Emissions from low-Voltage Electrical and Electronic Equipment in the range 9kHz to 40GHz. ANSI C63.10:2020+ Cor. 1- 2023+C63.10a-2024 + Errata to C63.10a-2024 American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices 558074 D01 15.247 Meas Guidance v05r02 Guidance for Compliance Measurements on DTS, FHSS, and Hybrid System Devices Operating Under Section 15.247 of the FCC Rules ISO/IEC 17025:2017 General requirements for the Competence of Testing and Calibrations Laboratories P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 3 of 55 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 ................................................................................................................. 10 15.209/15.205 Spurious Emissions ................................................................................................... 15 Occupied Bandwidth ......................................................................................................................... 38 Power Spectral Density ..................................................................................................................... 43 Conducted Spurious Emissions ........................................................................................................ 48 Test Equipment Utilized .................................................................................................................... 55 Measurement Uncertainty ................................................................................................................. 55 P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 4 of 55 Test Report Revision History Revision Date Revised By Reason for Revision 1.0 April 30, 2026 Harshith Devaraja Original Document 2.0 July 22, 2026 Harshith Devaraja CAB US-ID updated Radiated Emission plots updated Current revision of the test report replaces any prior versions. Only the current version of the test report is valid. P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 5 of 55 EUT Description Model: 106-0043 IC HVIN: FATHOM-FA02 IC PMN: Fathom Bluetooth Hub Serial: 106-0043-0000001 Firmware: host_test_LP_EM_CC2745R10_Q1_antSwitch_HIGH_ant2 Description: RV Bluetooth device to interface with the Fathom Tensor sensor Additional Information: Radio Frequency Range and Operational Info: 2.402 – 2.480 GHz BLE GFSK (1Mbps) Usage: Fixed/Mobile The Bluetooth device contains two non-simultaneous transmission antennas controlled by an RF switch after the module RF Antenna 1 & RF Antenna 2 Receipt of Sample(s): April 06, 2026 EUT Condition: Visual Damage No State of Development Production/Production Equivalent P2630015_FCC_15.247_RSS_247_Rev 2.0 Page 6 of 55 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 configuration 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 emiss…

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DATASHEET PartNo.9005868 Product: 2.4 GHz Corner Chip Antenna Part No. 9005868 2.4 GHz Corner Chip Antenna 2.400 - 2.480MHz Supports: Wi-Fi applications, Bluetooth, BLE, Zigbee, WLAN, ISM, Matter 3/10/2025Proprietary www.KYOCERA-AVX.com 2.4 GHz Corner Chip Antenna 2.400–2.480MHz •Embedded design •Headsets, Tablets •Smart Home/Cities •TPMS •Wearables •IoT, Industrial devices •Telematics (TCU) •wBMS KEYBENEFITS Stay-in-Tune This chip antenna provides superior RF field containment, resulting in less interaction with surrounding components. Quicker Time-to-Market Byoptimizingantennasize, performance and emissions, customer and regulatory specifications aremoreeasily met. Environmental Compliance Products are the latest RoHSversioncompliant. APPLICATIONS KYOCERA AVX 9005868 Ultra small chip antenna designed for corner placement on PCB exhibits high efficiency for 2.4 GHz applications. For support integrating, optimizing and testing this antenna in your device or custom designs, contact our Customer Support Team. Frequency2.40 – 2.48 GHz Peak Gain4 dBi AverageEfficiency72% S11Match< -18 dB Feed Point Impedance50 ohms PolarizationLinear Power Handling0.5 W Radiation Pattern Omnidirectional Additional ResourcesDownload Simulation Files ElectricalSpecifications Typicalperformanceon10 x 52 x 0.8mmPCB Mechanical Specifications & Ordering Part Number OrderingPartNumber9005868 Size(mm)1.00x0.58x0.35 MountingSMT Weight(grams)0.0009 Storage Temperature/ Humidity 15°C to 35°C / ≤ 65% Operating Temperature -55°C to +125°C Packaging Tape&Reel, 9005868–5,000piecesper reel Variant A9005868 (Automotive version) Demo Board9005868-01 Additional ResourcesDownload DXF and 3D Fit Files TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Side View Top View PinDescription 1 Feed 2 Floating PartNumberA(mm)B(mm)C(mm) 90058681.00±0.100.58±0.0750.35±0.10 DATASHEET|PartNo. 9005868 AntennaDimensions Typicalantennadimensions(mm) *Pin #1 and Pin #2 are interchangeable. Bottom View A B 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs Pin#1 Pin#2 C TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Return Loss S11 (2400 - 2480 MHz) DATASHEET|PartNo. 9005868 Return Loss S11, Efficiency, and Peak Gain Plots Typical performance on 10 x 52 mm PCB Efficiency (2400 - 2480 MHz) 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs Peak Gain (2400 - 2480 MHz) -30 -27 -24 -21 -18 -15 -12 -9 -6 -3 0 240024102420243024402450246024702480 Return Loss (dB) Frequency (MHz) 0 10 20 30 40 50 60 70 80 90 100 240024102420243024402450246024702480 Efficiency (%) Frequency (MHz) -10 -8 -6 -4 -2 0 2 4 6 8 10 240024102420243024402450246024702480 Peak Gain (dBi) Frequency (MHz) TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 DATASHEET|PartNo. 9005868 Antenna Radiation Patterns Typical performance on 10 x 52 mm PCB Measured @ 2440 MHz 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Antenna Outline ref. DATASHEET|PartNo. 9005868 Pin#Description 1 Feed 2 Floating MatchingPiNetwork(DemoBoard) ComponentValueTolerance P1 DNIN/A S1 2.2nH±0.05nH P2 1.5pF±0.05pF 50Ω Transmission line Pin#2 *Actual matching values depend on customer’s design. 50ohm * Vias: Diam. 0.2mm, (no vias on transmission lines). * Via holes must be covered by solder mask PinDescriptions Antenna Layout (9005868-01) Typical layout dimensions (mm) Pin#1 Antenna Outline P1 S1 P2 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs SUBSTRATE TOP METAL TOP SOLDER MASK BOTTOM METAL Antenna Outline TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 PartNumberAB 9005868-0152.00 ± 0.2010.00 ± 0.20 DATASHEET|PartNo. 9005868 Antenna Demo Board Typical layout dimensions (mm) 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs Front View Side View Back View A B TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Recommended Reflow Soldering Profile The recommended method for soldering the antenna to the board is forced convection reflow soldering. The following suggestions provide information on how to optimize the reflow process for the Chip antenna: DATASHEET|PartNo. 9005868 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs TDS-ANT-0152 | Rev 0 © 2025 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Packaging DATASHEET|PartNo. 9005868 2.4 GHz Corner Chip KYOCERA AVX Embedded Antenna Specifications KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs TDS-ANT-0152 | Rev 0 © 2024 KYOCERA AVX tel +(1) 858.550.3820 email: [email protected] 1 Avx Blvd, Fountain Inn, SC 29644 Additional Resources Simulation Files: HFSS: https://www.kyocera-avx.com/download/antennas/ansys-hfss/9005868_HFSS.zip CST:https://www.kyocera-avx.com/download/antennas/CST/9005868_CST.zip 3D FIT File: https://www.kyocera-avx.com/download/antennas/ME-FIT/9005868_ME-Fit.zip DXF File: https://www.kyocera-avx.com/do…

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