ADB-9ZWRTR137Transceiver unit for the radar sensor

Rev 1/26/2023 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 01-29-2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: ADB9ZWRTR137 Furuno USA Inc certifies that, as of the date of the filing of the application, Furuno USA Inc is our designated U.S. agent for service of process for the above referenced FCC ID. Furuno USA Inc accepts 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. Furuno USA 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 IDs. Designated U.S. Agent Information: Name: Furuno USA Inc Address: 4400 NW Pacific Rim Blvd. Contact Person: William Haynes Tel.: 360-833-5047 Email: [email protected] FRN:0005903604 Sincerely, [Insert U.S. agent company name]Furuno USA Inc (U.S. agent company nameprinted name)Furuno USA Inc (U.S. agent company name signature) [Insert applicant name]Furuno USA Inc (Applicant printed name)William Haynes (Applicant signature)

Date: 01-29-2026 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) Filing Re. KDB 986446 D01 FCC ID: ADB9ZWRTR137 Dear Sir or Madam, Furuno USA Inc 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. We also certify 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. If you have any questions, please contact us. Sincerely, Contact name: William Haynes Company name:Furuno USA Inc Address: 4400 NW Pacific Rim Blvd. Camas, WA 98607 E-mail: [email protected] Tel: 360-833-5047

9-52 Ashihara-cho, Nishinomiya, 662-8580, Japan www.furuno.com 29 January 2026 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request FCC ID: ADB9ZWRTR137 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission’s Rules, Furuno USA Inc hereby requests permanent confidential treatment of information accompanying this application as outlined below: Schematics Bill of Materials/Parts List Block Diagrams Theory of Operation (Description of Circuitry and Devices) Furuno USA Inc also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days: Internal Photos External Photos User Manual Test Set-up Photographs The above 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. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Akira Yamamoto Telephone Number: +81(0)798-63-1216 Email: [email protected]

06 June 2023 TUV SUD BABT TCB/FCB Octagon House, Segensworth Road, Fareham, Hampshire, PO15 5RL Dear Sir or Madam, I, Bill Haynes of Furuno USA Inc , hereby authorize Akira Yamamoto of Furuno Electric Co., Ltd to act as our agent in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. This authorization expires on 01 July 2026. Sincerely, Bill Haynes Deep Sea Product Manager, Furuno USA Signature_______________________ Date Signed – 06 June 2023

Labotech International Document number: LIC 01-25-048 Date of issue: 28 November 2025 Form: Q053/01 - Page 1 of 1 - Identification of Equipment for MARINE RADAR ANTENNA UNIT, Transceiver RTR-137 (FCC Rule, 2.925) 1 ID Label The following nameplate is permanently fixed on the corresponding equipment unit. FCC ID: ADB9ZWRTR137 Material of Nameplate: PET50S, 75 m thick 2 ID Label Location ID Label is affixed to the base part. End of text ID Label

RF Exposure Evaluation Report 1. Product Information ManufacturerFuruno Electric Co., Ltd. 9-52 Ashihara-cho, Nishinomiya city, Hyogo, 662-8580 Japan Trade nameFuruno TypeRTR-137 ModelTransceiver for RADAR SENSOR FAR-2028-NXT-MARK-2 FAR-3025-NXT-MARK-2 Product DescriptionMarine Radar operating in the band of 9300-9500 MHz FCC IDADB9ZWRTR137 IC ID1281B-RTR137 Frequency Range9403.75MHz ~ 9433.75MHz Peak Envelope Power (PEP)600W Antenna Gain (G p )XN12AF：27.5dBi / XN20AF：30.0dBi / XN24AF：31.0dBi Beam Width (θ)XN12AF：1.9° / XN20AF：1.23° / XN24AF：0.95° Maximum Pulse Width (τ)0.686μs + 13.57μs = 14.256μs Pulse Repetition Frequency (PRF) 1000Hz Minimum separation distanceXN12AF：3.57m / XN20AF：3.36m / XN24AF：2.30m 2. Evaluation method and Limit FCC requirements According to FCC CFR 47 part1 1.1307 (b)(3)(i)(C): The criteria listed in the following table shall be used to determine the exemption of further evaluation. R is the separation distance and is XN12AF：3.57m / XN20AF：3.36m / XN24AF：2.30m instructed in the installation manual. Threshold ERP * is ERP TH (XN12AF) = 19.2 × 3.57 2 = 244.70 [W] ERP TH (XN20AF) = 19.2 × 3.36 2 = 216.76 [W] ERP TH (XN24AF) = 19.2 × 2.30 2 = 101.57 [W] * ERP: refer to FCC CFR 47 part1 1.1307 (b)(2) ISED requirements According to RSS-102 Issue 6 6.6: Exemption Limits for Routine Evaluation is defined as follows “device operates ~ at or above 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal to or less than 5 W (adjusted for tune-up tolerance).” 3. Evaluation Results Calculated ERP ERP = PEP × 10^ቆ G p −2.15 10 ቇ× ( τ× PRF ) × θ 360 ERP(XN12AF) = 600 × 10^൬ 27.5−2.15 10 ൰× ( 14.256 × 10 −6 × 1000 ) × 1.9 360 = 15.47 [ W ] ≤244.70 [ W ] ERP ( XN20AF ) = 600 × 10^൬ 30.0−2.15 10 ൰× ( 14.256 × 10 −6 × 1000 ) × 1.23 360 = 17.81 [ W ] ≤216.76 [ W ] ERP ( XN24AF ) = 600 × 10^൬ 31.0−2.15 10 ൰× ( 14.256 × 10 −6 × 1000 ) × 0.95 360 = 17.32 [ W ] ≤101.57 [ W ] where: PEP is converted to the mean power using the pulse width and the pulse repetition frequency. G p is converted to a gain relative to a dipole. The antenna rotates continuously over 360 degrees in the horizontal plane and illuminates the subjects only by its main lobe. Therefore, time-averaged power is derated by the beamwidth and the angle of rotation. Calculated e.i.r.p. e. i.r.p. = PEP × 10^൬ G p 10 ൰× ( τ× PRF ) × θ 360 e. i.r.p. ( XN12AF ) = 600 × 10^( 27.5 10 )× ( 14.256 × 10 −6 × 1000 ) × 1.9 360 = 25.39 [ W ] ≥5 [ W ] e. i.r.p. ( XN20AF ) = 600 × 10^( 30.0 10 )× ( 14.256 × 10 −6 × 1000 ) × 1.23 360 = 29.22 [ W ] ≥5 [ W ] e. i.r.p. ( XN20AF ) = 600 × 10^( 31.0 10 )× ( 14.256 × 10 −6 × 1000 ) × 0.95 360 = 28.42 [ W ] ≥5 [ W ] where: PEP is converted to the mean power using the pulse width and the pulse repetition frequency. The antenna rotates continuously over 360 degrees in the horizontal plane and illuminates the subjects only by its main lobe. Therefore, time-averaged power is derated by the beamwidth and the angle of rotation.

This report shall not be reproduced except in full, without the written approval of Labotech International Co., Ltd. Test Report CFR Title 47 Sections: Part 2 (2.1046, 2.1047, 2.1049, 2.1051, 2.1053, 2.1055) Part 80 (80.209, 80.211, 80.213, 80.215) Part 90 (90.205, 90.207, 90.209, 90.210, 90.213, 90.215, 90.248) Trade Name : FURUNO Model : Transceiver for MARINE RADAR FAR-2028-NXT-MARK-2, FAR-3025-NXT-MARK-2 Type : RTR-137 Report Number:LIC 12-25-088 Date of Issue : 28 November 2025 Labotech International Co., Ltd. 1-16, Fukazu-cho, Nishinomiya-shi, Hyogo, 663-8203 Japan Tel: +81 (0) 798 63 1094 Fax: +81 (0) 798 63 1098 URL: https://www.labotech-intl.co.jp/ Labotech International Report no.: LIC 12-25-088 Form: LQ053/12- Page 2 of 115 - Table of contents Testing Laboratory Status ............................................................................................................... 3 1 Report Summary .......................................................................................................................... 4 2 Principal Information .................................................................................................................... 6 3 Test Results Summary ................................................................................................................. 9 4 Test Results ............................................................................................................................... 10 4.1 RF Power Output ................................................................................................................. 10 4.2 Modulation Characteristics ................................................................................................... 13 4.3 Frequency Stability temperature & voltage variation .......................................................... 16 4.4 Occupied Bandwidth ............................................................................................................ 24 4.5 Spurious Emissions at Antenna Terminals ........................................................................... 25 4.6 Field Strength of Spurious Radiation ................................................................................... 26 5 Test Setup for Measurements .................................................................................................... 28 6 Measuring Equipment List .......................................................................................................... 31 7 RF Envelope and Spectrum of the Output Pulse ........................................................................ 33 8 Spurious Emission Plots measured at Antenna Terminal ........................................................... 69 9 Field Strength of Spurious Radiation Plots measured in the Spurious domain ......................... 108 Labotech International Report no.: LIC 12-25-088 Form: LQ053/12- Page 3 of 115 - C having been assessed according to the provisions of ISO/IEC 17025 and/or the relevant rules: (1) JAB Accredited Testing Laboratory: - accredited by Japan Accreditation Board (JAB) - Laboratory accreditation number: RTL03220 (Date of initial accreditation: 14 January 2011 (*)) - Scope of accreditation: Electrical testing - EMC, Climatic, Vibration and Radio tests (2) Kiwa Listed Testing Laboratory: - listed by Kiwa Netherlands B.V., (The Netherlands) - Laboratory assignment number: L116 (Date of initial listing: 26 July 1999 (*)) - for testing the following product categories/ test standards: EN 60945, IEC 61162-1/-2, IEC/EN 61162-450, IEC 62288, ETSI EN 301 843-1/-2, ETSI EN 301 489-1/-3 /-17 (3) TÜV Appointed EMC Test Laboratory: - appointed by TÜV Rheinland Japan Ltd. - Laboratory assignment number: UA 50046428 (Date of initial appointment: 21 December 1998 (*)) - for carrying out the tests of EMC emission and immunity (4) RMRS Recognized Testing Laboratory: - recognized by Russian Maritime Register of Shipping (Russia) - Laboratory recognition number: 17.13259.170 (Date of initial recognition: 27 January 2009 (*)) - for carrying out testing in the field of: Electrical measurements and tests, EMC tests, Mechanical measurements and tests, Equipment protection degree tests, and Climatic tests for Ships radio and navigational equipment and IEC 60945: 2002 (5) DNV Recognized Environmental Test Laboratory: - recognized by Det Norske Veritas AS - Recognition certificate number: 262.1-015854-J-12 (Date of initial recognition: 12 July 2013 (*)) - Scope of recognition: Testing according to the standards IEC 60945, IEC 61162-1/-2/-450, IEC 62288, IEC 62388 and IEC 62252 Annex E - Application: Provisions of Environmental, interface and safety testing (6) CCS Recognized Test Agency: - recognized by China Classification Society - Recognition certificate number: DB21PAA00001 (Date of initial recognition: 29 January 2014 (*)) - Scope of recognition: Performance/Environmental/EMC/Special purpose/Safety precautions tests for Electrical & Electronic Product including Maritime Navigation and Radio-communication Equipment & Systems (7) A2LA accredited Testing Laboratory: - accredited by American Association of Laboratory Accreditation (A2LA) - Certificate number: 5241.01 (Date of initial accreditation: 17 July 2019 (*)) - Scope of accreditation: Electrical testing - Radio - Maritime Radio Systems, Stations in the maritime services, Private land mobile radio service, Radio / Intentional radiators, and RF Exposure (*) The latest certification status may be found on the LIC website (https://www.labotech-intl.co.jp/). Labotech International Report no.: LIC 12-25-088 Form: LQ053/12- Page 4 of 115 - LIC project number : LIC 04-25-0142 Customer : FURUNO ELECTRIC CO., LTD. 9-52 Ashihara-cho, Nishinomiya City, Hyogo. 662-8580, Japan Manufacturer : FURUNO ELECTRIC CO., LTD. 9-52 Ashihara-cho, Nishinomiya City, Hyogo. 662-8580, Japan Trade name :FURUNO Model :Transceiver for MARINE RADAR FAR-2028-NXT-MARK-2, FAR-3025-NXT-…

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