AFJ452100UHF DIGITAL TRANSCEIVER

IC-F4600DT FRONT SIDE IC-F4600DT REAR SIDE IC-F4600DT RIGHT SIDE IC-F4600DT LEFT SIDE IC-F4600DT TOP SIDE IC-F4600DT BOTTOM SIDE IC-F4600DT REAR SIDE IC-F4600DT SERIAL IC-F4600DS FRONT SIDE IC-F4600DS REAR SIDE IC-F4600DS RIGHT SIDE IC-F4600DS LEFT SIDE IC-F4600DS TOP SIDE IC-F4600DS BOTTOM SIDE IC-F4600DS REAR SIDE IC-F4600DS SERIAL

ANNEX 1 – TEST SETUP PHOTOS Model IC-F4600DS/DT ICOM UHF Digital Transceiver FCC ID: AFJ452100 IC:202D-452100 A1 - 1 Radiated Emission at 3m Distance ANNEX 1 – TEST SETUP PHOTOS Model IC-F4600DS/DT ICOM UHF Digital Transceiver FCC ID: AFJ452100 IC:202D-452100 A1 - 2 Radiated Emission at 3m Distance ANNEX 1 – TEST SETUP PHOTOS Model IC-F4600DS/DT ICOM UHF Digital Transceiver FCC ID: AFJ452100 IC:202D-452100 A1 - 3 Radiated Emission at 3m Distance ANNEX 1 – TEST SETUP PHOTOS Model IC-F4600DS/DT ICOM UHF Digital Transceiver FCC ID: AFJ452100 IC:202D-452100 A1 - 4 Power Line Conducted Emission ANNEX 1 – TEST SETUP PHOTOS Model IC-F4600DS/DT ICOM UHF Digital Transceiver FCC ID: AFJ452100 IC:202D-452100 A1 - 5 Power Line Conducted Emission

UHF DIGITAL TRANSCEIVER Model: IC-F4600DS/DT FCC ID: AFJ452100 IC: 202D-452100 HVIN: 452100-01 Applicant: ICOM Incorporated 1-1-32, Kamiminami, Hirano-ku Osaka, Japan, 547-0003 Tested in Accordance With Federal Communications Commission (FCC) 47 CFR, Parts 2, 22, 74, 80 and 90 (Subpart I) And Industry Canada, RSS-119, Issue 12(Amd: July 2025) Land Mobile and Fixed Transmitters and Receivers Operating in the Frequency Range 27.41-960 MHz UltraTech's File No.: 26ICOM640_FCC90 This Test report is Issued under the Authority of Tri M. Luu, BASc, Vice President of Engineering UltraTech Group of Labs Date: April 22, 2026 Report Prepared by: Santhosh Fernandez Issued Date: April 22, 2026 Tested by: Angus Au Test Dates: February13- March 31, 2026  The results in this Test Report apply only to the sample(s) tested, and the sample tested is randomly selected.  This report must not be used by the client to claim product endorsement by any agency of the US Government.  This test report shall not be reproduced, except in full, without a written approval from UltraTech. UltraTech 3000 Bristol Circle, Oakville, Ontario, Canada, L6H 6G4 Tel.: (905) 829-1570 Fax.: (905) 829-8050 Website: www.ultratech-labs.com , Email: [email protected], Email: [email protected] FCC Parts 2, 22, 74, 80 and 90 Subpart I, RSS-119 i UHF DIGITAL TRANSCEIVER FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: 26ICOM640_FCC90 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 April 22, 2026 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) TABLE OF CONTENTS EXHIBIT 1. INTRODUCTION ............................................................................................................................................ 3 1.1. SCOPE ............................................................................................................................................................................ 3 1.2. RELATED SUBMITTAL(S)/GRANT(S) ...................................................................................................................... 3 1.3. NORMATIVE REFERENCES ....................................................................................................................................... 3 EXHIBIT 2. PERFORMANCE ASSESSMENT .................................................................................................................. 4 2.1. CLIENT INFORMATION ............................................................................................................................................. 4 2.2. EQUIPMENT UNDER TEST (EUT) INFORMATION ................................................................................................. 4 2.3. EUT’S TECHNICAL SPECIFICATIONS ..................................................................................................................... 5 2.4. LIST OF EUT’S PORTS ................................................................................................................................................. 5 2.5. LIST OF ANTENNA ........................................................................................................................................................... 6 2.6. ANCILLARY EQUIPMENT ......................................................................................................................................... 7 EXHIBIT 3. EUT OPERATING CONDITIONS AND CONFIGURATIONS DURING TESTS ................................... 8 3.1. CLIMATE TEST CONDITIONS ................................................................................................................................... 8 3.2. OPERATIONAL TEST CONDITIONS & ARRANGEMENT FOR TEST SIGNALS .................................................. 8 EXHIBIT 4. SUMMARY OF TEST RESULTS .................................................................................................................. 9 4.1. TEST LAB AND LOCATION ....................................................................................................................................... 9 4.2. APPLICABILITY & SUMMARY OF EMISSION TEST RESULTS ............................................................................ 9 4.3. MODIFICATIONS INCORPORATED IN THE EUT FOR COMPLIANCE PURPOSES .......................................... 10 EXHIBIT 5. MEASUREMENTS, EXAMINATIONS & TEST DATA FOR EMC EMISSIONS ................................ 11 5.1. TEST PROCEDURES .................................................................................................................................................. 11 5.2. MEASUREMENT UNCERTAINTIES ........................................................................................................................ 11 5.3. MEASUREMENT EQUIPMENT USED ..................................................................................................................... 11 5.4. ESSENTIAL/PRIMARY FUNCTIONS AS DECLARED BY THE MANUFACTURER .......................................... 11 5.5. RF POWER OUTPUT [§§ 2.1046, 22.565, 74.461, 80.215 & 90.205] [RSS-119 § 5.4] ............................................... 12 5.6. AUDIO FREQUENCY RESPONSE [§ 2.1047(A), 80.213(E) & 90.242(B)(8)] ............................................................ 13 5.7. MODULATION LIMITING [§§ 2.1047 (B), 74.463, 80.213 & 90.210] ....................................................................... 16 5.8. OCCUPIED BANDWIDTH & EMISSION MASK [§§ 2.1049, 74.462, 80.211(F), 90.209 & 90.210] [RSS-119 §§ 5.5 & 5.8] [RSS-119 § 5.5 & 5.8] .................................................................................................................................................... 21 5.9. TRANSMITTER ANTENNA POWER SPURIOUS/HARMONIC CONDUCTED EMISSIONS [§ 2.1051, 2.1057, 22.359, 80.211…

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SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 1 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com APPENDIX 3 Body Worn Accessories SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 2 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com TABLE OF CONTENTS EXHIBIT 1. BODY WORN ACCESORIES ........................................................................................................................ 3 BELT-CLIP ................................................................................................................................................................................... 3 BELT HANGER ......................................................................................................................................................................... 4 SPEAKER-MICROPHONE ............................................................................................................................................................... 6 EARPHONE ............................................................................................................................................................................... 8 MIC CABLE ............................................................................................................................................................................. 11 LI-ION CHARGEABLE BATTERY (M/N: BP-303, BP-303N, BP-316, BP-305) ............................................................................. 12 ANTENNAS ................................................................................................................................................................................ 13 SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 3 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com EXHIBIT 1. BODY WORN ACCESORIES BELT-CLIP < MB-133 Belt-clip > < MB-136 Belt-clip > SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 4 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com BELT HANGER Belt Hanger Mb-96F Belt Hanger Mb-96FL SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 5 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com Belt Hanger MB-96N SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 6 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com SPEAKER-MICROPHONE < HM-163MC TIE-CLIP MICROPHONE> < HM-222H Speaker-microphone > SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 7 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com Headset Hs94 Headset Hs95 SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 8 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com Headset Hs97 EARPHONE Earphone Sp 26 SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 9 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com Earphone Sp27 Earphone Sp28 Earphone Sp29 SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 10 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com Earphone Sp40 Earphone EH-15B SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 11 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com MIC CABLE Mic Cable Vs4mc Mic Cable Vs5mc SPECIFIC ABSORPTION RATE (SAR) Appendix 3 Page 12 of 13 UHF Transceiver M/N: IC-F4600DT/DS FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com LI-ION CHARGEABLE BATTERY (M/N: BP-303, BP-303N, BP-316, BP-305) < L…

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SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 1 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com APPENDIX 1 SAR Measurement Data SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 2 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com TABLE OF CONTENTS EXHIBIT 1. SYSTEM VERIFICATION ............................................................................................................................. 3 EXHIBIT 2. PRESCAN ......................................................................................................................................................... 8 EXHIBIT 3. HEAD SAR MEASUREMENT ..................................................................................................................... 22 EXHIBIT 4. BODY SAR MEASUREMENT ..................................................................................................................... 64 SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 3 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com EXHIBIT 1. SYSTEM VERIFICATION SAR1g SAR10g Type Frequency Reference Measured Delta Reference Measured Delta (MHz) (W/kg) % (W/kg) % Head 450 1.16 1.16 0.00% 0.771 0.773 0.26% Body 450 1.16 1.13 -2.59% 0.779 0.744 -4.49% Bluetooth Body 2450 12.7 12.4 -2.36% 6.03 6.28 4.15% Head 2450 13.3 13 -2.26% 6.26 6.15 -1.76% SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 4 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com File Name: Head verification for 640QR2 at 450 Mhz 3250 probe 4Mar26.da52:0 DUT: D450V3 - SN1063; Type: D450V3; Serial: SN1063 Communication System: UID 0, CW (0); Frequency: 450 MHz; Duty Cycle: 1:1 Medium parameters used: f = 450 MHz; σ = 0.842 S/m; ε r = 43.326; ρ = 1000 kg/m 3 ; Phantom section: Flat Section ; Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration:  Probe: ES3DV3 - SN3250; ConvF(7.06, 7.06, 7.06); Calibrated: 3/10/2025;  Sensor-Surface: 3mm (Mechanical Surface Detection)  Electronics: DAE4 Sn874; Calibrated: 7/29/2025  Phantom: ELI 4.0; Type: QD OVA 001 BB; Serial: 1057  DASY52 52.10.0(1446); SEMCAD X 14.6.10(7417) System verification Head Icom 640 at 450 Mhz 3250 probe 4Mar26/d=15mm, Pin=250mW, dist=1.4mm (EX-Probe)/Area Scan (61x81x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.32 W/kg System verification Head Icom 640 at 450 Mhz 3250 probe 4Mar26/d=15mm, Pin=250mW, dist=1.4mm (EX-Probe)/Zoom Scan (7x7x7) (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 34.06 V/m; Power Drift = 0.06 dB Peak SAR (extrapolated) = 1.79 W/kg SAR(1 g) = 1.16 W/kg; SAR(10 g) = 0.773 W/kg (SAR corrected for target medium) Maximum value of SAR (measured) = 1.32 W/kg 0 dB = 1.32 W/kg = 1.20 dBW/kg SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 5 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com File Name: Body verification for 640QR2 at 450 Mhz 3250 probe 23Feb26.da52:0 DUT: D450V3 - SN1063; Type: D450V3; Serial: SN1063 Communication System: UID 0, CW (0); Frequency: 450 MHz; Duty Cycle: 1:1 Medium parameters used: f = 450 MHz; σ = 0.934 S/m; ε r = 55.576; ρ = 1000 kg/m 3 ; Phantom section: Flat Section ; Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration:  Probe: ES3DV3 - SN3250; ConvF(7.12, 7.12, 7.12); Calibrated: 3/10/2025;  Sensor-Surface: 3mm (Mechanical Surface Detection)  Electronics: DAE4 Sn874; Calibrated: 7/29/2025  Phantom: ELI 4.0; Type: QD OVA 001 BB; Serial: 1057  DASY52 52.10.0(1446); SEMCAD X 14.6.10(7417) System verification Icom 640 at 450 Mhz 3250 probe 23Feb26/d=15mm, Pin=250mW, dist=1.4mm (EX-Probe)/Area Scan (61x81x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.29 W/kg System verification Icom 640 at 450 Mhz 3250 probe 23Feb26/d=15mm, Pin=250mW, dist=1.4mm (EX-Probe)/Zoom Scan (7x7x7) (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 32.83 V/m; Power Drift = 0.06 dB Peak SAR (extrapolated) = 1.83 W/kg SAR(1 g) = 1.13 W/kg; SAR(10 g) = 0.744 W/kg (SAR corrected for target medium) Maximum value of SAR (measured) = 1.32 W/kg 0 dB = 1.29 W/kg = 1.11 dBW/kg SPECIFIC ABSORPTION RATE (SAR) Appendix 1 Page 6 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com File Name: System Verification - 2450MHz_Head(ICOM-640) Final.da52:0 DUT: D2450V2 - SN821; Type: D2450V2; Serial: SN821 Communication System: UID 0, CW (0); Frequency: 2450 MHz; Duty Cycle: 1:1 Medium parameters used: f = 2450 MHz; σ = 1.862 S/m; ε r = 37.628; ρ = 1000 kg/m 3 ; Phantom section: Flat Section ; Measurement Standard: DASY5 (IEEE/IEC/…

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UHF DIGITAL TRANSCEIVER Model: IC-F4600DS/DT FCC ID: AFJ452100 IC: 202D-452100 HVIN: 452100-01 Applicant: ICOM Incorporated 1-1-32, Kamiminami, Hirano-ku Osaka, Japan, 547-0003 .In accordance with SAR (Specific Absorption Rate) Requirements using guidelines established in IEEE C95.1-2019, FCC OET Bulletin 65 (Supplement C), FCC 47CFR Part 2.1093 And ISED RSS-102 (Issue 6) UltraTech’s File No.: ICOM-640QR4-SAR IC-F4600DT This Test report is Issued under the Authority of Tri M. Luu, BASc, Vice President of Engineering UltraTech Group of Labs Date: April 16, 2026 Report Prepared by: Vipin Thomas Tested by: Vipin Thomas Issued Date: April 12, 2026 Test Dates: Feb 20 ~March 8, 2026  The results in this Test Report apply only to the sample(s) tested, and the sample tested is randomly selected.  This report must not be used by the client to claim product endorsement by any agency of the US Government.  This test report shall not be reproduced, except in full, without a written approval from UltraTech. UltraTech 3000 Bristol Circle, Oakville, Ontario, Canada, L6H 6G4 Tel.: (905) 829-1570 Fax.: (905) 829-8050 Website: www.ultratech-labs.com , Email: [email protected], Email: [email protected] SPECIFIC ABSORPTION RATE (SAR) Page 1 UHF Transceiver, M/N: IC-F4600DS/DT FCC ID: AFJ452100 ULTRATECH GROUP OF LABS File #: ICOM-640QR4-SAR IC-F4600DT 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com TABLE OF CONTENTS EXHIBIT 1. INTRODUCTION ............................................................................................................................................ 3 1.1. SCOPE .............................................................................................................................................................................. 3 1.2. REVISION HISTORY .......................................................................................................................................................... 3 1.3. REFERENCES .................................................................................................................................................................... 4 EXHIBIT 2. PERFORMANCE ASSESSMENT .................................................................................................................. 5 2.1. CLIENT AND MANUFACTURER INFORMATION ................................................................................................................. 5 2.2. DEVICE UNDER TEST (D.U.T.) DESCRIPTION .................................................................................................................. 5 D.U.T.’s front view without battery >..................................................................................................................................... 7 2.3. LIST OF D.U.T.’S ACCESSORIES: .................................................................................................................................... 8 2.4. SPECIFIC OPERATING AND TEST CONDITIONS ............................................................................................................... 10 Channel Frequencies selected for test per IEEE Std. 1528:2013 Section6.3.5 ................................................................. 10 *Original frequwncies used for test- 400.025, 405, 412.5, 415, 417.5, 420, 425, 430, 432.5, 437.5, 440, 442.5, 450, 455, 460, 467.5, 470, 480, 482.5, 485, 490, 495, 500, 502.5, 507.5, 519.975 .............................................................................. 10 *Frequencies outside Transceivers operating range and not evaluated .............................................................................. 10 EXHIBIT 3. SUMMARY OF TEST RESULTS ................................................................................................................ 11 3.1. SAR TEST LAB AND LOCATION ............................................................................................................................. 11 3.2. APPLICABILITY & SUMMARY OF SAR RESULTS ........................................................................................................... 11 3.3. SUMMARY OF REPORTED SAR .................................................................................................................................. 12 EXHIBIT 4. SAR SYSTEM CONFIGURATION ............................................................................................................. 17 4.1. DASY5 SYSTEM OVERVIEW ......................................................................................................................................... 17 DASY5 System Specification ................................................................................................................................................. 17 DASY5 SAR SYSTEM block diagram .................................................................................................................................... 20 4.2. SAR TEST PHANTOMS ................................................................................................................................................... 21 SAM Twin Phantom .............................................................................................................................................................. 21 ELI 4.0 Phantom ................................................................................................................................................................... 21 EXHIBIT 5. SAR DATA ACQUISITION METHODOLOGY ........................................................................................ 22 5.1. SAR MEASUREMENT PROCEDURE ................................................................................................................................. 22 Interpolation, Extrapolation and Detection of Maxima ...........…

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IC-F4600DT Serial Plate IC-F4600DS Serial Plate Serial Plate Location

Date: February 12, 2026 To Whom It May Concern Subject: Attestation Letter Applicant: Icom Inc. Product: UHF HH Transceiver Model: IC-F4600DT and IC-F4600DS FCC ID: AFJ452100 Dear Sir/Madam, For Part 90 frequency user, the radio is disabled 25kHz mode by radio firmware at factory in order to comply with FCC mandate for part 90 frequencies. Best regards Icom Incorporated Tatsuo Yano General Manager of Quality Assurance Department 1-1-32 kamiminami Hirano-ku Osaka Japan. Phone : +81 66793-5301 Fax : +81 66793-0013 e-mail: [email protected] URL : https://www.icomjapan.com/

Date: February 12, 2026 To Whom It May Concern: Subject: Extended Frequencies Justification Applicant: Icom Inc. Product: UHF HH Transceiver Model: IC-F4600DT and IC-F4600DS FCC ID: AFJ452100 Icom Inc., herby request FCC to certify above radio with extended frequencies from 400 to 520 MHz. As required per KDB 634817, Icom acknowledges that that the device will be programmed only for the frequencies authorized or allowed by the rule parts applied under and FCC rules are violated if the device operates on unauthorized frequencies. ICOM understand the inclusion of Grant note code “EF”. Part 2.106 has been used to construct the following table of frequency range allocation with respective FCC rule part(s) intended for Federal & Non-federal end users. Frequency[MHz] Part 90 Part 80 Part 74 Part 22 Federal 400.0000 - 406.0000 X 406.1000 - 420.0000 X X 420.0000 - 450.0000 X X 450.0000 - 454.0000 X X 454.0000 - 455.0000 X X 455.0000 - 456.0000 X 456.0000 - 460.0000 X X X 460.0000 - 462.5375 X X 462.5375 - 462.7375 X 462.7375 - 467.5375 X X X 467.5375 - 467.7375 X X 467.7375 - 470.0000 X X X 470.0000 - 512.0000 X X 512.0000 - 520.0000 X X Sincerely, Icom Incorporated Tatsuo Yano General Manager of Quality Assurance Department 1-1-32 kamiminami Hirano-ku Osaka Japan. Phone : +81 66793-5301 Fax : +81 66793-0013 e-mail: [email protected] URL : https://www.icomjapan.com/

Date: February 12, 2026 To Whom It May Concern Subject: Confidentiality and Short-Term Confidentiality Letter Applicant: Icom Inc. FCC ID: AFJ452100 Dear Sir/Madam: The applicant would like to request the following documents submitted with this application for certification be withheld from public disclosure as per Section 0.457 & 0.459 of FCC Rules. Confidential 1. Operational Description 2. Block Diagram 3. Schematics 4. Parts List 5. Tuning Info Short-Term Confidential for 120 days 6. Internal Photos 7. Users Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation shall not be made. Regards Icom Incorporated Tatsuo Yano General Manager of Quality Assurance Department 1-1-32 kamiminami Hirano-ku Osaka Japan. Phone : +81 66793-5301 Fax : +81 66793-0013 e-mail: [email protected] URL : https://www.icomjapan.com/

Ult G Accredit L APE C SL Ko 30 O C Tel. Fa x Webs Email: v traTec Group of Labs tations: Lab Code: 0685 EC TEL CA0001 1309 CA 0001/2049 AT-1945 L2-IN-E-1119R orea KCC-RRA CA0001 000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 : (905) 829-157 0 x.: (905) 829-8050 site: www.ultratech labs.com vic@ultratech-labs. Ma y Ultr 300 Oak L6H Su b App Pro Mo FC C De a As for fili n No t cha req 80 No t und sub If y o Yo u Sa San Aut h 0 0 h- com y 6, 2026 ratech Engin 00 Bristol Circ kville, Ontario H 6G4 bject: plicant: oduct: del: C ID: ar Sir/Madam appointed ag FCC certifica ng site. te 1: As decla annel spacing uired by FCC certifications te 2: ICOM he der FCC rules bmitted with th ou have any q urs truly, anthosh Fernand nthosh Ferna thorized Agen neering Labs cle o Certificatio n and 90 (Sub Frequency B ICOM Incorp UHF DIGITA IC-F4600DS/ AFJ452100 m: gent for ICOM ation of the ab ared by the ap g (16K0F3E) o C mandate. Te only. ereby request s as per the re his filing. queries, pleas ndez ndez nt s, Inc. n Testing in a part I) - Non- Band 400-520 porated AL TRANSCE /DT M Incorporate bove product. pplicant in the operation of th est performed t FCC to list t easons expla se do not hes accordance w -Broadcast R 0 MHz EIVER ed, we would Please revi e e attestation le his radio is pe d for 25kHz ch he entire freq ined in the at sitate to conta with FCC 47 Radio Transc like to submit ew all files up etter submitte ermanently di hannel spacin quency range tached Freq u act us. CFR, Parts 2 ceivers Oper t the applicati loaded to yo u ed with this fil sabled for P a ng are for par from 400-520 uency Justifica 2, 22, 74, 80 rating in the on to you ur electronic ing, 25kHz art 90 use as rts 22, 74 & 0 MHz ation letter

Date: Februa…

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