DBZDCHTBDigital Camera Hop Transmitter

Attestation Letter Date: 06/12/2024 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: DBZDCHTB Lectrosonics 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, Robert Cunnings, VP IT, Logistics and Quality Assurance [email protected] Lectrosonics Inc 581 Laser Road NE PO Box 15900 Rio Rancho, NM 87124, USA

Attestation Letter Date: 06/12/2024 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: DBZDCHTB Lectrosonics 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, Robert Cunnings, VP IT, Logistics and Quality Assurance [email protected] Lectrosonics Inc 581 Laser Road NE PO Box 15900 Rio Rancho, NM 87124, USA

Attestation Letter for Agent 2024/06/12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911 (d)(7) Filing FCC ID: DBZDCHTB Lectrosonics Inc certifies that, as of the date of the filing of the application, Lectrosonics Inc is our designated U.S. agent for service of process for the above referenced FCC ID: DBZDCHTB. Lectrosonics Inc agrees 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. Lectrosonics Inc accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company name: Lectrosonics, Inc. (FRN: 0007067481) Address: 581 Laser Rd NE PO Box 15900, Rio Rancho, NM 87124, United States Contact person: Robert Cunnings Tel: 505-892-4501 Email: [email protected] Sincerely, Applicant Name Lectrosonics, Inc Applicant Printed Name Robert Cunnings

FCC Authorization 2024/06/12 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Lectrosonics Inc, the undersigned, Hereby authorizes Bay Area Compliance Laboratories Corp. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Robert Cunnings, VP IT, Logistics and Quality Assurance [email protected] Lectrosonics Inc 581 Laser Road NE PO Box 15900 Rio Rancho, NM 87124, USA

QA-FR-172-A FCC Confidential Authorization 2024-06-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: DBZDCHTB In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Lectrosonics Inc hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description  BOM/Parts List  Tune Up Procedure As well as short-term confidential treatment of information accompanying this application as outlined below:  Internal Photos  User’s Manual  External Photos  Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Robert Cunnings, V.P. IT, Logistics and Quality Assurance [email protected] Lectrosonics Inc 581 Laser Road NE PO Box 15900 Rio Rancho, NM 87124, USA

Label and Label Location EUT Rear View FCC ID: DBZDCHTB IC: 8024A-DCHTB Model: DCHT-B1C1

© 2024 RF Exposure Lab, LLC This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. 802 N. Twin Oaks Valley Road, Suite 105 • San Marcos, CA 92069 • U.S.A. TEL (760) 471-2100 • FAX (760) 471-2121 http://www.rfexposurelab.com CERTIFICATE OF COMPLIANCE SAR EVALUATION Lectrosonics, Inc. Dates of Test: June 25-26, 2024 581 Laser Road NE Test Report Number: SAR.20240615 Rio Rancho, NM 87124 Revision A Lab Designation Number: US1195 This wireless mobile and/or portable device has been shown to be compliant for localized specific absorption rate (SAR) for uncontrolled environment/general exposure limits specified in ANSI C95.1 – 1999 Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz, ANSI C95.3 – 2002 Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields, IEEE Std.1528 – 2013 Recommended Practice and had been tested in accordance with the measurement procedures specified in KDB 447498 (See test report). I attest to the accuracy of the data. All measurements were performed by myself or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. RF Exposure Lab, LLC certifies that no party to this application is subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Jay M. Moulton Vice President Testing Cert. # 2387.01 IC Certificate: DBZDCHTB Model(s): DCHT-B1C1 Test Sample: Engineering Unit Same as Production Serial Number: 841 Equipment Type: Wireless Body Worn Microphone Classification: Portable Transmitter Next to Body TX Frequency Range: 537.6 – 662.95 MHz Frequency Tolerance: ± 2.5 ppm Maximum RF Output: 16.99 dBm (537.6-607.95 MHz), 13.01 dBm (614.4-662.95 MHz) Conducted Signal Modulation: 8PSK Antenna Type: Dipole Antenna Application Type: Certification FCC Rule Parts: Part 2, 15C, 74H KDB Test Methodology: KDB 447498 D01 v06 Maximum SAR Value: 0.14 W/kg Reported Separation Distance: 0 mm Report Number: SAR.20240615 © 2024 RF Exposure Lab, LLC Page 2 of 65 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Table of Contents 1. Introduction ........................................................................................................................ 4 SAR Definition [5] ................................................................................................................... 5 2. SAR Measurement Setup ................................................................................................... 6 Robotic System ...................................................................................................................... 6 System Hardware ................................................................................................................... 6 System Electronics ................................................................................................................. 7 Probe Measurement System .................................................................................................. 7 3. Probe and Dipole Calibration .............................................................................................15 4. Phantom & Simulating Tissue Specifications .....................................................................16 Head Simulating Mixture Characterization.............................................................................16 5. ANSI/IEEE C95.1 – 1992 RF Exposure Limits [2] ..............................................................17 Uncontrolled Environment .....................................................................................................17 Controlled Environment .........................................................................................................17 6. Measurement Uncertainty .................................................................................................18 7. System Validation..............................................................................................................19 Tissue Verification .................................................................................................................19 Test System Verification ........................................................................................................19 8. SAR Test Data Summary ..................................................................................................20 Procedures Used To Establish Test Signal ...........................................................................20 Device Test Condition ...........................................................................................................20 SAR Data Summary – 600 MHz Body ...................................................................................24 9. Test Equipment List ...........................................................................................................25 10. Conclusion ....................................................................................................................26 11. References ....................................................................................................................27 Appendix A – System Validation Plots and Data .......................................................................28 Appendix B – SAR Test Data Plots ...........................................................................................32 Appendix C – SAR Test Setup Photos ......................................................................................34 Appendix D – Probe Calibration Data Sheets .........................................................................…

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DCHT-B1C1 Antenna Antenna model/Part number: AMJ22, AMJ25 Antenna Manufacturer: Lectrosonics Connector Type: SMA Maximum Gain: 2.15 dBi Antenna Type/Pattern: dipole in free space Antenna Pattern: See documents “DipoleHorizontalPattern.pdf” and “DipoleVerticalPattern.pdf” both attached Frequency Range: 537.500 - 607.950MHz (AMJ22) 640.000 - 691.175MHz (AMJ25)

-15 30 60 90 o 120 150 180 210 240 270 o 300 330 o dB DIPOLE HORIZONTAL PATTERN

-15 60 120 150 180 o 210 240 300 330 30 oo o o DIPOLE VERTICAL PATTERN dB o o

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA*, NIST, or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*” (Rev.2) FCC Part 15.236, RSS-210 TEST AND MEASUREMENT REPORT For Lectrosonics, Inc. 581 Laser Road NE, Rio Rancho, NM 87124, USA FCC ID: DBZDCHTB IC: 8024A-DCHTB R e p o r t T y p e : O r i g i n a l R e p o r t P r o d u c t T y p e: B o d y-Wo r n W i r e l e s s M i c r o p h o n e T r a n s m i t t e r Prepared By: Xavier Kelley RF Test Engineer Report Number: R2405163-236 Report Issue Date: 2024-08-23 Reviewed By: Christian McCaig RF Lead Engineer Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue, Sunnyvale, CA 94089, USA Tel: 1 (408) 732-9162 Fax: 1 (408) 732-9164 Lectrosonics, Inc. FCC ID: DBZDCHTB, IC: 8024A-DCHTB Report Number: R2405163-236 Page 2 of 100 FCC Part 15.236, RSS-210 TABLE OF CONTENTS 1 GENERAL DESCRIPTION ................................................................................................................................. 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .......................................................................... 5 1.2 MECHANICAL DESCRIPTION OF EUT ................................................................................................................. 5 1.3 OBJECTIVE ......................................................................................................................................................... 5 1.4 RELATED SUBMITTAL(S)/GRANT(S) ................................................................................................................... 5 1.5 TEST METHODOLOGY ........................................................................................................................................ 5 1.6 MEASUREMENT UNCERTAINTY .............................................................................................................................. 6 1.7 TEST FACILITY REGISTRATIONS ........................................................................................................................ 6 1.8 TEST FACILITY ACCREDITATIONS ...................................................................................................................... 6 2 EUT TEST CONFIGURATION ........................................................................................................................... 9 2.1 JUSTIFICATION ................................................................................................................................................... 9 2.2 EUT EXERCISE SOFTWARE ................................................................................................................................ 9 2.3 SPECIAL EQUIPMENT ......................................................................................................................................... 9 2.4 EQUIPMENT MODIFICATIONS ............................................................................................................................. 9 2.5 LOCAL SUPPORT EQUIPMENT............................................................................................................................. 9 2.6 INTERFACE PORTS AND CABLES ........................................................................................................................ 9 3 SUMMARY OF TEST RESULTS ...................................................................................................................... 10 4 FCC §15.236 (D) & RSS-210 G.1 – RF OUTPUT POWER ............................................................................. 11 4.1 APPLICABLE STANDARDS ................................................................................................................................ 11 4.2 TEST PROCEDURE ............................................................................................................................................ 12 4.3 TEST EQUIPMENT LIST AND DETAILS .............................................................................................................. 12 4.4 TEST ENVIRONMENTAL CONDITIONS ............................................................................................................... 12 4.5 TEST SETUP DIAGRAM ..................................................................................................................................... 12 4.6 TEST RESULTS ................................................................................................................................................. 13 5 FCC §15.236(F2,G) & RSS-210 G.2 – OCCUPIED BANDWIDTH & EMISSION MASK .......................... 15 5.1 APPLICABLE STANDARDS ................................................................................................................................ 15 5.2 TEST PROCEDURE ............................................................................................................................................ 17 5.3 TEST EQUIPMENT LIST AND DETAILS .............................................................................................................. 17 5.4 TEST ENVIRONMENTAL CONDITIONS ............................................................................................................... 17 5.5 TEST SETUP DIAGRAM ..................................................................................................................................... 17 5.6 TEST RESULTS ................................................................................................................................................. 18 6 FCC §15.236 (G), RSS-210 G…

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