SY4-A02072Unmanned Surface Vessel

A APACHE 4 LITE AUTONOMOUS HYDROLOGICAL MARINE SURVEY & CONSTRUCTION CHCNAV AUTONOMOUS HYDROLOGICAL SURVEYUSV The Apache4 Lite is an advanced Unmanned Surface Vessel (USV) specifically designed for hydrological survey, combining the best of high accuracy positioning and automated navigation control technology. APACHE 4 Lite USV builds around the operator's habits when conducting ADCP (Acoustic Doppler Current Profiler) hydrological cross section flowmeasurements, compatible with main stream underway ADCP systems on the market. The lightweight design of the double-layered hull, with EasySail software in Android remote control, makes survey easy, safe and accurate. It is equipped with automatic navigation, adaptive straight-line water flow technology, and hover technology, improving the accuracy of flow rate estimation. Even when GNSS positioning might be degraded by obstructed environments, the internal GNSS+ IMU module continues to provide reliable position and heading for the ADCP and autopilot controller. ADVANCED NAVIGATION CONTROLLER Integrated adaptive water flow straight- line and hovering technology. The automatic control system allows the APACHE 4 Lite to navigate in a straight line along the cross section safely according to the profile view as the flow, turbulence, etc . changes by stable position and heading provided by GNSS+IMU. The hovering technology ensures that the APACHE 4 Lite hovers stably in the turbulent flow, improving the accuracy of the flow estimation. BUILT-IN POWERFUL MOTOR Powerful power system allows USV to travel faster and farther. APACHE 4 Lite uses a brushless DC motor with a maximum power of 1000 W and a maximum speed of 7200 rpm . The powerful power allows the USV to reach a maximum speed of 6 m/s . APACHE 4 Lite comes standard with two batteries, and the battery life of a single battery can reach 3. 5 hours at a speed of 1.5 m/s; the battery supports hot-swap replacement without interrupting the USV operation process . ANDROID INTELLIGENT CONTROL Android remote control makes work more efficient. The remote controller controls APACHE 4 Lite via 4G or digital radio communication, supporting manual control or fully automatic navigation. To ensure the safety of the USV, the system supports automatic return to home when the battery is low or the connection is lost. Easysail app supports route planning, data collection, post-processing and other functions . The streamlined operation makes it easy for users to learn and makes the operation more convenient and efficient. DESIGNED FOR ADCP SPECIALLY Lightweight,less redundant design. The APACHE 4 Lite hydrological test USV is designed for flow measurement of small and medium-sized rivers. The length is only 1 meter, the weight is 5 kg, and the volume is 20% smaller than APACHE 4, making it more convenient for transportation and operation. The mounting hole of ADCP is 17 cm, which is compatible with RS1200, M9, RiverRay and RiverPro.With RiverStar ADCP, it supports quick disassembly and assembly, and can be operated by one person. CHCNAV · APACHE 4 LITE CHCNAV I GICAL SURVEY USV Remote control EasySail SoftwareRiverStar ADCPSemi-embedded motor CHCNAV ·APACHE4 LITE SPECIFICATIONS Physical Hull Dimension (L x Wx H) 1.0 m x 0.57 m x 0.27 m Material High strength and modulus carbon fiber Weight (w/o instrument and 5 kg battery) Maximum Payload 10 kg Anti-Wave & Wind 3 rd wind level and 2 nd wave level Hull DesignTriple-hull vessel GNSSInternalGNSSdualantenna WaterproofIP67 Draft 12 cm ( unladen ) Indicator Light Two-color light (Display satellite and positioning status) Camera (optional) Video resolution 1280 * 720 pixels ADCP Mounting Hole 170 mm Payload CompatibilityCompatible with RiverStar ADCP standardly, can be customized with echo sounder, water quality meter, side scanner Automatic measurement One button hovering or automatic hovering, adaptive adjustment of navigation parameters Propulsion TypeElectric Propeller Type Brushless DC Direction ControlVeering without steering engine Maximum Motor Power 1000W Maximum Motor Speed 7200 rpm Motor InstallationPluggable Li-ion Battery Capacity 32.4V23.1Ahrechargeablelithiumbattery Power SupplySupportsinglebatteryindependentpower supplyordualbatterybalancedpowersupply Battery Endurance 3.5 hours @ 1.5 m/s (runningon 1 battery, support hot-swap) Maximum Speed 6m/s Remotecontrol Display Screen 1000 nit luminance Resolution Ratio 1920*1200 Internal StorageRAM 4GB, Storage 64GB Endurance5h Communication Frequency 2.4 GHz Peripheral Interface USB port, Nano SIM card slot, TF card maximumsupport 128GB, Type-C Communications Data Communication Standard 4G (supports LTE-FDD, LTE- TDD, UMTS, GSM global network standards) & digital radio SIM Card SloteSIM and Nano SIM Interface 2x RJ45 port; 3x RS232 serial port 1x RS485serial port WWW.CHCNAV.COM | [email protected] CHC Navigation Headquarter Shanghai Huace Navigation Technology Ltd. 577 Songying Road, Qingpu, 201703 Shanghai, China +86 21 54260273 CHC Navigation Europe IOffice Campus, Building A, Gubacsi út 6, 1097 Budapest, HUNGARY +36 20 421 6430 [email protected] CHC Navigation USA LLC 6380 S. Valley View Blvd, Suite 246, LasVegas, NV 89118, USA +1 702 405 6578 CHC Navigation India 409 Trade Center, Khokhra Circle, Maninagar East, Ahmedabad, Gujarat, India +91 90 99 98 08 02 NavigationModeManualorAutoPilot Data Storage Local storage (multi-channel storage) Software Supportsswitchingbetweenpseudo-color velocityprofiles,satellitemaps(includingvelocity vectortrajectories); Supports full-screen display of any interface; Supports data collection and processing; Supports output of flow test results tables; Supports data file code sharing and one- click file transfer to the computer; Supports ADCP and software data synchronization Positioning BDS B1I/B2I /B3I、GPS L1C/A/L2P(Y)/ L2C/L5 、 Galileo E1/E5a/E5b 、 GLONASS L1/L2 、 QZSS L1/L2/L5 Channel1408 SinglePoint Position (RMS) Horizontal: 1.5 m Vertical: 2.5m Horizontal: 0.4…

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Shanghai Huace Navigation Technology Ltd. Covered Equipment Certification Attestation Letter 11/24/2025 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: SY4-A02072 Shanghai Huace Navigation Technology Ltd. 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. Shanghai Huace Navigation Technology Ltd. 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. Shanghai Huace Navigation Technology Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Glenn Chu Title: Certification Manager Company Name: Shanghai Huace Navigation Technology Ltd. Date: 11/24/2025

* the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. Shanghai Huace Navigation Technology Ltd. U. S. Agent Designation for Service of Process - Certification Attestation Letter 11/21/2025 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: SY4-A02072 Per section 2.911(d)(7) of t he FCC rules, Shanghai Huace Navigation Technology Ltd. (“t he applicant”) certifi es tha t the equipment fo r which authorization is sought is designated to the following U.S. agent* f or service of process: Company Name: iGage Mapping Corporation FRN: 0013933296 Physical U.S. Company Address: 1545 South 1100 East #1, Salt Lake City, UT 84105, United St ates Agent name: Mark E Silver Agent Email Address: [email protected] The above contact person accepts t he obligation f or service of process. The applicant accepts to maintain an agent for no less than one year after t he grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Agent Signed (if different to Applicant): Signed: Printed name: Glenn Chu Title: Certification Manager Company Name: Shanghai Huace Navigation Technology Ltd. Date: 11/3/2025 Signed: Printed name: Mark E Silver Title: President Company Name: iGage Mapping Corporation Date: 11/3/2025

November 3, 2025 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Shenzhen Alpha Product Testing Co., Ltd. Address: Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Person: Mark Zhu (Name and address，person). 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 the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. 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 Canada Inc, still resides with Shanghai Huace Navigation Technology Ltd. ( applicant name and address). (Signature) November 24, 2025 Name(in block letter) Glenn Chu Title (in block letter) Certification Manager Company Name Shanghai Huace Navigation Technology Ltd. Address 577 Songying Road, Qingpu District, 201706 Shanghai, China Tel +86-21-51508100 Fax +86-21-64851208 Email [email protected]

November 24, 2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: SY4-A02072 Product Name: Unmanned Surface Vessel Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics Long-term confidential  Block diagram Long-term confidential  Operation description Long-term confidential These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. (Signature) November 3, 2025 Name(in block letter) Glenn Chu Title (in block letter) Certification Manager Company Name Shanghai Huace Navigation Technology Ltd. Address 577 Songying Road, Qingpu District, 201706 Shanghai, China Tel +86-21-51508100 Fax +86-21-64851208 Email [email protected]  Tune-up procedure Long-term confidential

FCC ID: SY4-A02072 2.4G ANT 2/3/4G ANT FCC ID: SY4-A02072 FCC ID: SY4-A02072 FCC ID: SY4-A02072 FCC ID: SY4-A02072 FCC ID: SY4-A02072

2.5cm 1cm Label Location FCC ID: SY4-A02072 Shanghai Huace Navigation Technology Ltd. Unmanned Surface Vessel Model No.: Apache 4 LIte This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

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FCC ID: SY4-A02072

FCC ID: SY4-A02072 Prediction of MPE at a given distance 1. Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) 2. Test Procedure Equation from page 18 of OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to the antenna G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna FCC ID: SY4-A02072 3. Result Mode Frequency (MHz) Prediction distance (cm) Rated Peak RF power output MPE (mW/c m 2 ) Limit (mW/cm 2 ) SAR Test Exclusion dBm mW 2.4G 2439 40 13.84 24.2103 0.00507 1 Yes GSM 1909.8 40 34.15 2600.1596 0.34093 0.56587 Yes WCDMA 836.6 40 24.10 257.0396 0.02616 1 Yes LTE 2593 40 23.42 219.7860 0.03271 1 Yes Use distance is 40cm, Maximum Simultaneous transmission MPE Ratios for 2.4G+GSM: Max MPE ratio 2.4G /Limit Max MPE ratio GSM /Limit ∑MPE ratios Limit Result 0.00507 0.34093 0.346 1 PASS 2.4G Antenna Gain: 6.24dBi, 4.21(numeric) GSM Antenna Gain: 4.21dBi, 2.64(numeric) WCDMA Antenna Gain: 3.11dBi, 2.05(numeric) LTE Antenna Gain: 4.76dBi, 2.99(numeric) Then SAR evaluation is not required.

Room Temperature Electrical Performance Test Results Inspection Item Technical Requirements unit Test Results result frequency range 2400-2500 MHz 2400-2500 Pass antenna gain 6±1 dBi 2400 MHz 6.23 Pass 2450 MHz 6.24 2500 MHz 6.14 Horizontal beamwidth 360 ° 2400 MHz 360 Pass 2450 MHz 360 2500 MHz 360 Vertical Beamwidth 25 ° 2400 MHz 23.04 Pass 2450 MHz 24.16 2500 MHz 23.15 Non roundness of horizontal plane ±1.5 dB 2400 MHz 0.36 Pass 2450 MHz 0.42 2500 MHz 0.38 standing wave ratio ≤1.8 / 1.26 1.33 1.31 Pass Radiation pattern / / See attached figure Pass polarization mode vertical / vertical Pass Result: All inspection items meet the requirements of the inspection criteria. Voltage standing wave ratio at room temperature radiation pattern Frequency E H 2400MHz 2450MHz 2500MHz 41.3cm 2.1cm Applicant: Shenzhen Huaxin Antenna Technology Co., Ltd Address:Unit B, 6th Floor, Building D3, TCL Science Park R&D Building, 1001 Zhongshan Yuan Road, Nanshan District, Shenzhen, Guangdong Province, China

ALPHA's reports is using a digital certificate that is trusted on Adobe's official server. If there is no digital certificate or the digital certificate shows damaged in your report. Please do not accept the report. E-mail: [email protected] Tel: 4008-3008-95 Website: http://www.a-lab.cn FCC TEST REPORT FCC ID: SY4-A02072 On Behalf of Shanghai Huace Navigation Technology Ltd. Unmanned Surface Vessel Model No.: Apache 4 LIte Prepared for : Shanghai Huace Navigation Technology Ltd. Address : 577 Songying Road, Qingpu District, 201706 Shanghai, China Prepared By : Shenzhen Alpha Product Testing Co., Ltd. Address : Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Report Number : A2509115-C01-R03 Date of Receipt : September 18, 2025 Date of Test : September 18, 2025 - November 11, 2025 Date of Report : November 11, 2025 Version Number : V0 Test Result : Pass Page 2 of 42 Report No.: A2509115-C01-R03 TABLE OF CONTENTS Description Page TABLE OF CONTENTS --------------------------------------------------------------------------------------------------------- 2 1. Summary of Standards And Results -------------------------------------------------------------------------------- 6 1.1. Description of Standards and Results ------------------------------------------------------------------------ 6 2. General Information ------------------------------------------------------------------------------------------------------ 7 2.1. Description of Device (EUT) ------------------------------------------------------------------------------------ 7 2.2. Accessories of Device (EUT) ----------------------------------------------------------------------------------- 9 2.3. Tested Supporting System Details----------------------------------------------------------------------------- 9 2.4. Block Diagram of connection between EUT and simulators -------------------------------------------- 9 2.5. Test Mode Description -------------------------------------------------------------------------------------------- 9 2.6. Test Conditions ---------------------------------------------------------------------------------------------------- 10 2.7. Test Facility --------------------------------------------------------------------------------------------------------- 10 2.8. Measurement Uncertainty -------------------------------------------------------------------------------------- 10 2.9. Test Equipment List ---------------------------------------------------------------------------------------------- 11 3. Spurious Emission ------------------------------------------------------------------------------------------------------- 13 3.1. Test Limits ---------------------------------------------------------------------------------------------------------- 13 3.2. Test Procedure ---------------------------------------------------------------------------------------------------- 13 3.3. Test Setup ---------------------------------------------------------------------------------------------------------- 14 3.4. Test Results -------------------------------------------------------------------------------------------------------- 15 4. RF Conducted Spurious Emissions -------------------------------------------------------------------------------- 19 4.1. Block diagram of test setup ------------------------------------------------------------------------------------ 19 4.2. Limits ---------------------------------------------------------------------------------------------------------------- 19 4.3. Test procedure ---------------------------------------------------------------------------------------------------- 19 4.4. Test result ----------------------------------------------------------------------------------------------------------- 19 5. Power Line Conducted Emission ----------------------------------------------------------------------------------- 23 5.1. Test Limits ---------------------------------------------------------------------------------------------------------- 23 5.2. Test Procedure ---------------------------------------------------------------------------------------------------- 23 5.3. Test Setup ---------------------------------------------------------------------------------------------------------- 23 5.4. Test Results -------------------------------------------------------------------------------------------------------- 24 6. Duty Cycle ------------------------------------------------------------------------------------------------------------------ 25 6.1. Block diagram of test setup ------------------------------------------------------------------------------------ 25 6.2. Test Procedure ---------------------------------------------------------------------------------------------------- 25 6.3. Test Results -------------------------------------------------------------------------------------------------------- 25 7. Maximum peak conducted output power ------------------------------------------------------------------------- 28 7.1. Test limits ----------------------------------------------------------------------------------------------------------- 28 7.2. Test Procedure ---------------------------------------------------------------------------------------------------- 28 7.3. Test Setup ---------------------------------------------------------------------------------------------------------- 28 7.4. Test Results -------------------------------------------------------------------------------------------------------- 28 8. Power Spectral Density------------------------------------------------------------------------------------------------- 29 8.1. Test limits ----------------------------------------------------------------------------------------------------------- 29 8.2. Test Procedure ---------------------------------------------------------------------------------------------------- 29 8.3. Test Setup -------------------------------------------------…

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FCC ID: SY4-A02072 1.1. Photos of Radiated emission