2AVKZRETINA-4FNMilimeter wave radar

Product Specification Page 1 RETINA-4FN Imaging Radar Status: Revised Date: Nov. 03, 2022 Author: Smart Radar System Version: 0.5 Document number: Filename: RETINA-4FN Product Specification (User Manual) Product Specification: RETINA-4FN Imaging Radar http://www.smartradarsystem.com Product Specification Page 2 RETINA-4FN Imaging Radar Contents 1. Overview.............................................................................................................................................................................. 3 1.1 General Description .................................................................................................................................................. 3 1.2 Features ......................................................................................................................................................................... 3 1.3 Product Appearance ................................................................................................................................................. 3 2. Product ................................................................................................................................................................................. 4 2.1 Performance Specifications ................................................................................................................................... 4 2.2 Operating Conditions ................................................................................................................................................ 5 2.3 Connections ................................................................................................................................................................. 5 2.4 Mechanical Specifications ...................................................................................................................................... 6 2.5 Data Protocol ............................................................................................................................................................... 7 2.5.1 Ethernet ............................................................................................................................................................... 7 2.5.2 CAN FD ............................................................................................................................................................... 7 3. Notice .................................................................................................................................................................................... 8 3.1 FCC ................................................................................................................................................................................. 8 Product Specification Page 3 RETINA-4FN Imaging Radar 1. Overview 1.1 General Description The RETINA (Radar Enabled True Imaging by Neural Analysis)-4FN is 4D (X, Y, Z, Velocity) Imaging Radar implements automotive and industrial grade requirements for solution application allowing to precisely collect the distance and velocity information of target objects not only horizontally, but also vertically with single module. RETINA-4FN beams radio-electric waves and analyzes the reflected waves to detect objects in front and to get the 4D information of the objects. The radio-electric wave works well even in the bad environmental challenges, such as fog, smoke, rain, snow, night, flare, and dust. Detection that involves any moving objects such as car, drone, robot, airplane, ship and/or boat. Needs to factor in the surrounding environment precisely under any challenging circumstances in order to gather most valid result of detection. The RETINA-4FN by Smart Radar System is the ideal solution for various use cases to supplement any existing sensors or other unrecognized applications. RETINA-4FN utilizes 4 multi-chip system to distinguish objects. 1.2 Features • Innovative 4D Imaging Radar Product • Targeting ADAS / Autonomous driving • 77-81 GHz FMCW Radar • Built-in Automotive 1000BASE-T1 Ethernet Transceiver • Built-in CAN FD transceiver 1.3 Product Appearance Product Specification Page 4 RETINA-4FN Imaging Radar 2. Product 2.1 Performance Specifications Category Description Frequency 77 ~ 79 GHz Mode Long range Short range Range Maximum Detection Range Car: 250m Car: 100m Man:50m Range Resolution 1.40m 0.46m Doppler Maximum Doppler Ambiguity ±280km/h ±280km/h Doppler Resolution 0.161km/h 0.167km/h Angle Azimuth FOV 100°(±50°), 30°(±15°) @250m 100°(±50°) Azimuth Angle Resolution 2.0° 2.0° Elevation FOV 24°(±12°), TBD @250m 24°(±12°) Elevation Angle Resolution 4.7° 4.7° Point Cloud Output (per frame) Yes (Max. 3,000) Update Rate 50ms Output Data Interface 1000BASE-T1 Ethernet x 1 Vehicle Data Interface CAN FD x 1 ※ Specifications in this datasheet are subject to change without notice. Product Specification Page 5 RETINA-4FN Imaging Radar 2.2 Operating Conditions Category Description Notes Main Power Supply Typ. 12V Power Consumption Avg. <25W, Peak <30W Operating Temperature -40 ~ +85 °C Storage Temperature -40 ~ +105 °C Protection Rating IP67 2.3 Connections ※ Connector: MX23A12NF1 by JAE Electronics ※ CAN Termination Resistor(120Ω): Not mounted on product Description Name Pin number Name Description 1000BASE-T1 MX_TD+ 1 7 CAN_H1 CAN FD MX_TD- 2 8 CAN_L1 For Debug UART1_TX 3 9 UART1_RX For Debug GND 4 10 GND 5 11 POWER VIN_12V 6 12 VIN_12V POWER Product Specification Page 6 RETINA-4FN Imaging Radar 2.4 Mechanical Specifications Category Description Notes Dimension 147.3 x 121.5 x 37.0 (mm) W x L x H (mm) Weight < 535g Figure 1. Mechanical Size Product Specification Page 7 RETINA-4FN Imaging Radar 2.5 Data Protocol Sensor output data can be transmitted to the host system using Ethernet and CAN protocols. 2.5.1 Ethernet o Speed: 1Gbps, 1000BASE-T1 Ethernet o Network Ports - 29172: Data Output Port …

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SRS.ai Inc. 51 Cedarlake, Irvine, CA 92614, USA Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-13-2013 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: 2AVKZ [Smart Radar System, Inc.] (“the applicant”) certifies that, as of the date of the filing of the application, [SRS.ai Inc.] is our designated U.S. agent for service of process for the above referenced FCC ID. [Smart Radar System, 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. [SRS.ai 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: Name: SRS.ai Inc. FRN: 0033654039 Address: 51 Cedarlake, Irvine, CA 92614, USA Contact Person: Nara Won Email: [email protected] Sincerely, Smart Radar System, Inc. SRS.ai Inc. Jaecheol Ahn Nara Won

Rev 1/26/2023 Smart Radar System, Inc. 3rd Floor, Fine Venture Bldg, 41, Seongnam-daero 925gil, Bundang-gu, Seongnam-si South Korea 13496 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-17-2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AVKZRETINA-4FN Smart Radar System, 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, Jaecheol Ahn / Leader of Hardware Development Team Rev 1/26/2023 Smart Radar System, Inc. 3rd Floor, Fine Venture Bldg, 41, Seongnam-daero 925gil, Bundang-gu, Seongnam-si South Korea 13496 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-17-2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AVKZRETINA-4FN Smart Radar System, 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, Jaecheol Ahn / Leader of Hardware Development Team

Smart Radar System, Inc. 3rd Floor, Fine Venture Bldg, 41, Seongnam-daero 925gil, Bundang-gu, Seongnam-si South Korea 13496 Date: 04/17/2023 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Request of Confidentiality FCC ID: 2AVKZRETINA-4FN To Whom It may Concern: Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, Smart Radar System, Inc. hereby requests confidentiality and treatment of certain information accompanying this application. The 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. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give Smart Radar System, Inc. temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT & SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description 5 Tune-up procedure SHORT-TERM 6 Internal Photos 7 External Photos 8 Test-Setup Photos 9 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, Contact Name: Jaecheol Ahn Title: Leader of Hardware Development Team

Smart Radar System, Inc. 3rd Floor, Fine Venture Bldg, 41, Seongnam-daero 925gil, Bundang-gu, Seongnam-si South Korea 13496 Date: 04/17/2023 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Letter of Authorization We, the undersigned, hereby authorize Geunki Son of Dt&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2AVKZRETINA-4FN including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of Dt&C Co., Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from Smart Radar System, Inc.. “I, 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. 853(a).” Sincerely, Contact Name: Jaecheol Ahn Title: Leader of Hardware Development Team

FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 1 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 2 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 3 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 4 <Port>

Copyright@ 2023 Smart Radar System, Inc. All Rights Reserved. Smart Radar System Confidential 4FN FCC Label & Location 1 RETINA-4FN A123B5678910 MADE IN KOREA FCCID: 2AVKZRETINA-4FN (Product S/N) (FCC ID) 80mm 16mm (Product Name) Label location From the side Product label attached on the side Product

FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 1 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 2 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 3 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 4 FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. View 5

FCC ID: 2AVKZRETINA-4FN RF feature Separation distance(cm) Max. tune-up EIRP (dBm) Note1 Maximum EIRP (mW) Maximum power density(mW/cm 2 ) Requirement (mW/cm 2 ) FMCW Radar 77 000.0 ~ 79 000.0 20.00 25.00 316.228 0 0.062 9 1.000 ~~~~~~~ ▪ S = - Note = / ( 4 X R 2 X π ) = mW/cm 2 Electric Field strength (V/m) Magnetic field strength (A/m) Power Density (mW/cm 2 ) Averageing time (minutes) 0.3 ~ 1.34 614 1.63 *100 30 1.34 ~ 30 824/f 2.19 / f *180 / f 2 30 30 ~ 300 27.5 0.073 0.2 30 300 ~ 1,500 f / 1500 30 1,500 ~ 100,000 1.0 30 Conclusion : Frequency range (MHz) The EUT will only be used with a separation of 20 c entimeters or greater between the antenna and the b ody of the user. The MPE sample calculation for this exposure is sho wn below. Note1: Please refer to the tune-up procedure for tu ne-up max power. MPE Calculation ▪ Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) The exposure condition of this device is compliant with FCC EIRP / ( 4 R 2 π ) 316.228 S= Maximum power density(mW/cm 2 ) 0.0629 EIRP= Equivalent Isotropic Radiated Power(mW)R= Distance to the center of the radiation of the a ntenna

Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 2 / 20 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2304-0060 Apr. 19, 2023 Initial issue JaeHyeok Bang JaeJin Lee Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 3 / 20 Table of Contents 1 GENERAL INFORMATION ......................................................................... 4 2 INTRODUCTION ......................................................................................... 5 2.1 EUT DESCRIPTION ............................................................................................................. 5 2.2 TESTING ENVIRONMENT ................................................................................................... 5 2.3 MEASURING INSTRUMENT CALIBRATION ....................................................................... 5 2.4 MEASUREMENT UNCERTAINTY ........................................................................................ 5 2.5 TEST FACILITY .................................................................................................................... 6 3 SUMMARY OF TEST RESULTS ................................................................. 7 4 TEST RESULTS .......................................................................................... 8 4.1 OCCUPIED BANDWIDTH .................................................................................................... 8 4.2 EIRP ................................................................................................................................... 10 4.3 UNDESIRABLE EMISSIONS ............................................................................................. 13 4.4 FREQUENCY STABILITY .................................................................................................. 18 5 LIST OF TEST EQUIPMENT .................................................................... 20 Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 4 / 20 1 GENERAL INFORMATION FCC Equipment Class VRD – Part95 Vehicular Radar System Product Radar module Model Name RETINA-4FN Add Model Name - Test Device Serial Number 20 Power Supply DC 12 V Antenna Type Patch Antenna Frequency Range(MHz) Emission Designator Modulation EIRP(Peak detector) EIRP(Average detector) Max power (dBm) Max power (W) Max power (dBm) Max power (W) 77 000 ~ 79 000 1G63F1N FMCW 23.64 0.231 17.86 0.061 Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 5 / 20 2 INTRODUCTION 2.1 EUT DESCRIPTION The Equipment under Te s t (EUT) supports 77 ~ 79 GHz vehicular radar. Operation test setup for EUT - Test software: TeraTerm - Power setting: NA 2.2 TESTING ENVIRONMENT Ambient Condition ▪ Temperature +21 °C ~ +25 °C ▪ Relative Humidity 40 % ~ 46 % 2.3 MEASURING INSTRUMENT CALIBRATION The measuring equipment, which was utilized in performing the tests documented herein, has been calibrated in accordance with the manufacturer's recommendations for utilizing calibration equipment, which is traceable to recognized national standards. 2.4 MEASUREMENT UNCERTAINTY The measurement uncertainties shown below were calculated in accordance with requirements of ANSI C 63.4-2014. All measurement uncertainty values are shown with a coverage factor of k = 2 to indicate a 95 % level of confidence. Parameter Measurement uncertainty Radiated emission (1 GHz Below) 4.8 dB (The confidence level is about 95 %, k = 2) Radiated emission (1 GHz ~ 18 GHz) 5.0 dB (The confidence level is about 95 %, k = 2) Radiated emission (18 GHz Above) 5.2 dB (The confidence level is about 95 %, k = 2) Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 6 / 20 2.5 TEST FACILITY Dt&C Co., Ltd. The 3 m test site and conducted measurement facility used to collect the radiated data are located at the 42, Yurim-ro, 154beon-gil, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea 17042. The site is constructed in conformance with the requirements. - FCC & IC MRA Designation No. : KR0034 - ISED #: 5740A www.dtnc.net Telephone : + 82-31-321-2664 FAX : + 82-31-321-1664 Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 7 / 20 3 SUMMARY OF TEST RESULTS FCC Part RSS Std. Test Description Test Limit Test Condition Status Note 1 2.1049 Occupied Bandwidth N/A Radiated C 95.3367(a) Maximum power(EIRP) < 50 dBm (Averaging detector) C 95.3367(b) Maximum peak power(EIRP) < 55 dBm (Peak detector) C 2.1053 95.3379(a) Undesirable Emissions Below 40GHz < Part 95.3379 (a)(a) 40 ~ 200GHz < 600 pW/cm 2 Above 200GHz < 1000 pW/cm 2 C 2.1055 95.3379(b) Frequency Stability Within the frequency bands C Note 1: C=Comply NC=Not Comply NT=Not Tested NA=Not Applicable Report No.: DRTFCC2304-0060 FCC ID: 2AVKZRETINA-4FN This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-244(01)210316 Pages: 8 / 20 4 TEST RESULTS 4.1 OCCUPIED BANDWIDTH Test Configuration Above 1GHz These measurements were performed at 3 m test site. The equipment under test is placed on a non-conductive table 1.5-meters above a turntable which is flush with the ground plane and 3 meters from the receive antenna. For measurements above 1GHz absorbers are placed on the floor betwe…

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Antenna Specifications for Radar Sensor (For RETINA-4FN) 1. General Specifications 2. VSWR & Radiation Pattern S11 & VSWR Items Specifications Antenna Type Patch Antenna Frequency Band 77~81 GHz VSWR 2.0 max. Gain 10.5 dBi max. Axis of Radiation Pattern Radiation Pattern - 3D X Y X Z

FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup photographs EUT Position: X-axis EUT Position: Y-axis EUT Position: Z-axis FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Below 1GHz) FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Above 1GHz) FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Above 1GHz) FCC ID: 2AVKZRETINA-4FN Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Above 1GHz)