Y9M-KA450EPMR digital transceiver/repeater

Radio Activity S.r.l. Via privata Cascia, 11 - 20128 Milano- Italy – email: [email protected] - www.radioactivity-tlc.com Tel. +39.02.36514205 - FAX/Voicebox +39.1782.242408 - CCIAA Milano N° 1728248 - VAT Id. 04135130963 Designed & Made in Italy KAIROS enhanced User Manual Version 1.1 Radio Activity S.r.l. 2 / 37 Summary 1 FOREWORD ..................................................................................................................................... 7 1.1 LOCAL LAWS RESTRICTIONS ........................................................................................................................ 7 1.2 DOCUMENT COPYRIGHTS .......................................................................................................................... 7 1.3 DISCLAIMER ............................................................................................................................................ 7 1.4 MODIFICATIONS ...................................................................................................................................... 7 2 PRODUCT SAFETY ............................................................................................................................ 8 2.1 RF EXPOSURE COMPLIANCE ...................................................................................................................... 8 2.2 IMPROPER USE ........................................................................................................................................ 9 2.3 POWER SUPPLY ....................................................................................................................................... 9 2.4 ANTENNA SYSTEM / LIGHTNING .................................................................................................................. 9 3 RADIO DESCRIPTION ...................................................................................................................... 10 3.1 FRONTAL PANEL .................................................................................................................................... 10 3.2 REAR PANEL .......................................................................................................................................... 12 3.2.1 RX inputs specifications ............................................................................................................. 12 3.2.2 TX output specifications ............................................................................................................. 14 3.2.3 GPS antenna .............................................................................................................................. 15 3.2.4 Power supply .............................................................................................................................. 18 3.2.5 I/O ports ..................................................................................................................................... 19 4 INSTALLATION AND MAINTENANCE ............................................................................................... 22 4.1 IMPROPER USE ...................................................................................................................................... 22 4.2 THERMAL DISSIPATION............................................................................................................................ 22 4.3 POWER SUPPLY SYSTEM .......................................................................................................................... 23 4.4 ANTENNA ............................................................................................................................................. 23 4.4.1 Maximum permitted antenna gain for mobile usage ................................................................ 23 4.4.2 Maximum permitted antenna gain for fixed usage ................................................................... 24 Radio Activity S.r.l. 3 / 37 4.5 AF INTERFACE ....................................................................................................................................... 24 4.6 MANUAL SETTINGS ................................................................................................................................ 24 4.7 SELF-TEST PROCESS ................................................................................................................................ 24 4.8 PPS SIGNAL .......................................................................................................................................... 24 4.9 ON SITE CHECK LIST ................................................................................................................................ 24 4.10 IP DISCOVER ...................................................................................................................................... 26 4.11 PREVENTIVE MAINTENANCE ................................................................................................................ 26 5 PARAMETERS CONFIGURATION AND REMOTE CONTROL ................................................................ 27 5.1 GATEWAY FOR DIGITAL CONSOLE .............................................................................................................. 27 6 ENGINEERING SPECIFICATIONS ...................................................................................................... 28 6.1 KAE MAIN SPECIFICATIONS ...................................................................................................................... 28 6.2 RADIO FREQUENCY ................................................................................................................................. 29 6.2.1 Transmitter ................................................................................................................................ 29 6.2.2 Receiver ............…

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Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 Covered Equipment Certification Attestation Letter Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: Y9M-KA450E Radio Activity srl (“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, the applicant should include an explanation on why the equipment is not “covered” equipment. Radio Activity srl (“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. Signed: Date: 26/06/2024 Printed name: Mauro Campidoglio Title: Mr. Company Name: Radio Activity srl

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 U.S. Agent Designation for Service of Process - Certification Attestation Letter Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: Y9M-KA450E Per section 2.911(d)(7) of the FCC rules, Radio Activity srl (“the Applicant”), FRN: 0020595484, certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process: Company Name: EF JOHNSON COMPANY Physical U.S. Company Address: 1440 Corporate Drive, Irving, TX 75038 Agent name: Viet Vu Agent Email Address: [email protected] FRN: 0004201521 The above contact person accepts the obligation for service of process. The applicant 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. Date: 26/06/2024 Date: 26/06/2024 Applicant Signed: Designated Agent Signed: (Required, if different to Applicant): Signed: Signed: Printed name: Mauro Campidoglio Printed name: Viet Vu Title: Mr. Title: Mr. Company Name: Radio Activity srl Company Name: EF JOHNSON COMPANY

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: Y9M-KA450E Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☐ Short Term Internal Photos ☐ Permanent* ☐ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☒ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☐ Short Term User’s Manual ☐ Permanent* ☐ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Date: 26/06/2024 Printed name: Mauro Campidoglio Title: Mr. Company Name: Radio Activity srl

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Nemko North America, Inc., 303 River Road, Ottawa, Ontario, Canada K1V 1H2, to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti- Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Mauro Campidoglio Date: 26/06/2024

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 Equipment Authorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: Y9M-KA450E Object: Extended frequencies justification Radio Activity srl, Via Privata Cascia 11 - 20128 Milan ITALY, herein requests to have FCC extended frequency band 406.1 – 430 MHz and 450-470 MHz appear on the FCC grant for device identified by FCC ID: Y9M-KA450E. Local, State and Federal organizations, government bodies and their various departments, user organizations and military may use this device in the extended frequency range. This device will also be sold in non-US markets where use of the extended frequencies may be authorized. The applicant also requests that the grant note code “EF” be included on the grant of Equipment Authorization for FCC ID: Y9M-KA450E, to indicate extended frequencies. The applicant will notify the end users in the US that: 1. The device is to be programmed only for the frequencies allowed by the user’s radio station authorization. 2. It is a violation of FCC rules if the device operates on unauthorized frequencies. 3. This device uses extended frequencies and may contain functions that are not operational in US territories, except as noted in the filing. Sincerely, Printed name: Mauro Campidoglio Date: 26/06/2024

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 Equipment Authorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: Y9M-KA450E Product Name: KA-450e Object: Part 90.203(j)(5) Spectrum Efficiency “Applications for Part 90 certification of transmitters designed to operate on frequencies in the 150.8-162.0125 MHz, 173.2-173.4 MHz, and/or 421-512 MHz bands, received on or after January 1, 2011, must include a certification that the equipment meets a spectrum efficiency standard of one voice channel per 6.25 kHz of channel bandwidth. Additionally, if the equipment is capable of transmitting data, has transmitter output power greater than 500 mW, and has a channel bandwidth of more than 6.25 kHz, the equipment must be capable of supporting a minimum data rate of 4800 bits per second per 6.25 kHz of channel bandwidth.” The PMR digital transceiver/repeater model KA-450e is designed to work in dual mode analog and digital mode, for both voice and data service. In digital mode it works in standard DMR mode: it transmits 2 channels in 12.5 kHz of bandwidth, with a spectral efficiency of 6.25kHz of bandwidth per channel. The 2 channels can be both voice, or both data, or one voice and one data. The bitrate in DMR mode is 9.6kbps in any case. Sincerely, Printed name: Mauro Campidoglio Date: 26/06/2024

Front view Front view (up) Front view (panel on) Rear view Top view Bottom view Left view Right view

Trade Mark and address Power supply data Recycling recommendation «CE» marking Type /model Serial Number Trade Mark KA-10327 Type/Model «CE» marking Recycling information Power supply data Trade mark Serial number Trade Mark address Limitations

KA-450e Main board (top view) KA-450e Main board (bottom view) KA-450e Heatsink in KA-450e Heatsink out KA-450e Cover in KA-450e Cover out

Radio Activity srl Via Privata Cascia, 11 • 20128 Milan, Italy • e-mail: [email protected] / PEC: [email protected] Tel. +39.02.36514205 • Società a socio unico • CCIAA Milano N° 1728248 VAT IT 04135130963 FCC ID: Y9M-KA450E Product Name: KA-450e Tune up Informations KA-450e is designed so that the switching range matches the alignment range. No tune up procedure is required by technicians or users after the equipment has left the factory to match its specifications on the working frequency. No manual trimmers or adjustments that can be manually done are implemented. Date____26/04/2024___ Company name Radio Activity srl Name and Surname Mauro Campidoglio Position/Function CTO Signature________________________

Manufacturer: Radio Activity srl Name: Oscar Frau Product: KA-450e Title: Project Handler FCC ID: Y9M-KA450E Signature: MPE limits (§1.1310) Mode Frequency Duty Cycle Output Power 4 Antenna Gain 5 ERP 1 EIRP EIRP Distance PD 2 PD Limit 3 Margin MHz % dBm dB dBm dBm mW cm mW/cm 2 mW/cm 2 dB UHF 406,1 100 46,26 4,74 51,00 53,15 206464 250 0,263 0,3 0,13 1 ERP = ( Power dBm + Antenna Gain dBi ) + 10 x Log ( Duty Cycle % / 100 ) - note : 51 dBm ERP is the allowed limit 2 PD = EIRP / (4xπxD 2 ) 3 CFR 47 Part 1, §1.1310(e), table 1 (Limits for Gene ral Population/Uncontrolled Exposure) 4 See test report n. REP033952TRFWL issued by Nemko S pA 5 Max allowed antenna gain to respect ERP limit (4.74 dB correspondig to 6,89 dBi)

Report reference ID: REP033952 Page 87 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 406.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 88 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 406.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 89 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 406.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 90 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 406.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 91 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 406.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 92 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 413.5 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 93 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 413.5 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 94 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 413.5 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 95 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 413.5 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 96 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 413.5 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 97 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 413.5 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 98 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 413.5 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 99 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 413.5 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 100 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 420.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 101 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 420.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 102 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 420.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 103 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 420.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 104 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 420.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 105 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 420.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 106 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 420.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 107 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 420.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 108 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 421.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 109 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 421.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 110 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 421.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 111 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 421.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 112 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 421.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 113 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 421.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 114 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 421.1 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 115 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 421.1 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 116 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 429.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 117 of 207 Test data, continued Conducted spurious emissions with modulation FM 12.5 kHz at 429.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 118 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 429.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 119 of 207 Test data, continued Conducted spurious emissions with modulation FM 25 kHz at 429.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 120 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 429.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: REP033952 Page 121 of 207 Test data, continued Conducted spurious emissions with modulation DMR 4FSK at 429.9 MHz (1 to 6 GHz) Report reference ID: REP033952 Page 122 of 207 Test data, continued Conducted spurious emissions with modulation P25 C4FM at 429.9 MHz (30 MHz to 1 GHz) Limit exceeded by the carrier Report reference ID: R…

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Report reference ID: REP033952 Page 167 of 207 Test data, continued Frequency (MHz) Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector 1263.2500 -24.5 -20.0 -4.5 Pk 1684.5000 -32.1 -20.0 -12.1 Pk 2105.5000 -33.9 -20.0 -13.9 Pk 2526.5000 -36.5 -20.0 -16.5 Pk 2947.7500 -40.6 -20.0 -20.6 Pk Radiated spurious emissions with modulation FM 12.5 kHz at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 168 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 169 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Limit exceeded by the carrier Report reference ID: REP033952 Page 170 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 171 of 207 Test data, continued Frequency (MHz) Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector 1263.2500 -24.7 -20.0 -4.7 Pk 1684.5000 -31.3 -20.0 -11.3 Pk 2105.5000 -34.3 -20.0 -14.3 Pk 2526.5000 -37.5 -20.0 -17.5 Pk 2947.7500 -40.6 -20.0 -20.6 Pk Radiated spurious emissions with modulation FM 25.0 kHz at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 172 of 207 Test data, continued Radiated spurious emissions with modulation DMR 4FSK at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 173 of 207 Test data, continued Radiated spurious emissions with modulation DMR 4FSK at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Limit exceeded by the carrier Report reference ID: REP033952 Page 174 of 207 Test data, continued Frequency (MHz) Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector 1263.2500 -23.7 -20.0 -3.7 Pk 1684.5000 -28.9 -20.0 -8.9 Pk 2105.5000 -37.7 -20.0 -17.7 Pk 2526.7500 -41.6 -20.0 -21.6 Pk Radiated spurious emissions with modulation DMR 4FSK at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 175 of 207 Test data, continued Frequency (MHz) Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector 1263.2500 -23.7 -20.0 -3.7 Pk 1684.5000 -30.2 -20.0 -10.2 Pk 2105.5000 -32.9 -20.0 -12.9 Pk 2526.5000 -36.3 -20.0 -16.3 Pk 2947.7500 -39.1 -20.0 -19.1 Pk Radiated spurious emissions with modulation DMR 4FSK at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 176 of 207 Test data, continued Radiated spurious emissions with modulation P25 C4FM at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 177 of 207 Test data, continued Radiated spurious emissions with modulation P25 C4FM at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Limit exceeded by the carrier Report reference ID: REP033952 Page 178 of 207 Test data, continued Radiated spurious emissions with modulation P25 C4FM at 421.1 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 179 of 207 Test data, continued Radiated spurious emissions with modulation P25 C4FM at 421.1 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 180 of 207 Test data, continued Radiated spurious emissions with modulation FM 12.5 kHz at 460.0 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 181 of 207 Test data, continued Radiated spurious emissions with modulation FM 12.5 kHz at 460.0 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Limit exceeded by the carrier Report reference ID: REP033952 Page 182 of 207 Test data, continued Radiated spurious emissions with modulation FM 12.5 kHz at 460.0 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 183 of 207 Test data, continued Radiated spurious emissions with modulation FM 12.5 kHz at 460.0 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 184 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 460.0 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 185 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 460.0 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Limit exceeded by the carrier Report reference ID: REP033952 Page 186 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 460.0 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 187 of 207 Test data, continued Radiated spurious emissions with modulation FM 25.0 kHz at 460.0 MHz – Antenna in vertical polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 188 of 207 Test data, continued Radiated spurious emissions with modulation DMR 4FSK at 460.0 MHz – Antenna in horizontal polarization (worst frequency case from conducted emissions) Report reference ID: REP033952 Page 189 of 207 Test data, continued Radiated spurious emissions with modulation DMR 4FSK at 460.0 MHz – Antenna in vertical polariz…

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O N E W O R L D O U R A P P R O V A L Setup photos REP033952 // REP041982 Date of issue: May 15, 2024 // April 30, 2024 Applicant: Radio Activity Srl Via Privata Cascia, 11 – 20128 Milano (MI) – Italy Product name: PMR digital transceiver/repeater Model: KA-450e FCC ID: IC Registration number: Y9M-KA450E 10484A-KA450E Report reference ID: REP033952, REP041982 Page 2 of 10 Section 1. Setup photos (Part 90 I, Part 22 C and E / RSS-119) 1.1 Radiated emissions set-up for frequencies below 1 GHz Report reference ID: REP033952, REP041982 Page 3 of 10 1.2 Radiated emissions set-up for frequencies above 1 GHz Report reference ID: REP033952, REP041982 Page 4 of 10 1.3 Set-up photo for antenna port tests Report reference ID: REP033952, REP041982 Page 5 of 10 1.4 Frequency stability Re…

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