2BRBT-KASTRAL251219Marine Navigation Equipment

K-Astral Series Quick Installation Manual This manual is applied to K-Astral 8(A/C/X/S), K-Astral 12(A/C/X/S) - Display Unit X 1 Packing List Chart Features Transmit & Receive: Receive: NMEA0183 Sentences Supported NMEA2000&OneNet PGN Supported Power Supply SeriesInput VoltageMax PowerRated Current at 12V K-Astral 12 K-Astral 12A/C/X/S K-Astral 8 K-Astral 8A/C/X/S 2A 2A 2A 2A INPUT: OUTPUT Baudrate: Selectable Outputs for Autopilot: Environmental Ratings (8 & 12 Series): Physical Parameters Series Dimensions (L×W×H) Weight Display Resolution Display Area (W×H) K-Astral 8 K-Astral 12 Radar Display Unit Parameters AIS Antenna KA-09 PWR/DATA HDMI RJ45 NMEA2000 Temperature TRANSDUCER K-Astral 8 Series Interconnections GNSS Antenna Built-in GNSS Antenna (if equipped) -5- AIS Antenna PWR/DATA HDMI RJ45 NMEA2000 Temperature TRANSDUCER K-Astral 12 Series Interconnections KA-09 GNSS Antenna Built-in GNSS Antenna For K-Astral 12/12C/12S only (if equipped)

For CE Manufacturer Information: Shenzhen Onwa Marine Electronics Co. Ltd. Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Transmitter Frequency: 2.4G Wi-Fi: 2412-2472MHz/2422-2462MHz Receiver Frequency: 2.4G Wi-Fi: 2412-2472MHz/2422-2462MHz GPS L1 C/A, BDS B1I, SBAS L1, Galileo E1: 1559-1610 MHz RF-Output Power: 2.4G Wi-Fi: 15.07 dBm For FCC Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. Model: K-Astral 12S, K-Astral 8, K-Astral 8C, K-Astral 8S, K-Astral 8A, K-Astral 8X，K-Astral 12, K-Astral 12A, K-Astral 12C, K-Astral 12X

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, Our product Marine Navigation Equipment, model: K-Astral 12S, K-Astral 8， K-Astral 8C, K-Astral 8S, K-Astral 8A, K-Astral 8X, K-Astral 12, K-Astral 12A, K-Astral 12C, K-Astral 12X, FCC ID: 2BRBT-KASTRAL251219, for marketing purpose, this product only supports 2.4G Wi-Fi(2412-2462MHz, 2422-2452MHz, 802.11b/g/n20/n40 modes), GNSS(only has RX functions). The other functions and bands were disabled to use by manufacture in the software, the end user has no capability to acti vate it. Sincerely Yours, Signature: Kelvin Wong Manager

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2BRBT-KASTRAL251219 SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO 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. Sincerely Yours, Signature: Kelvin Wong Manager

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2BRBT-KASTRAL251219 SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO 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. And our product does not use Kaspersky software information. Sincerely Yours, Signature: Kelvin Wong Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2BRBT-KASTRAL251219 SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD certifies that, as of the date of the filing of the application, Iconsigh Inc. is our designated U.S. agent for service of process for the above referenced FCC ID. SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD 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. Iconsigh 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: Company Name: Iconsigh Inc. Address: 2310 Homestead Road, Suite C1, Los Altos, CA, 94024, USA FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant: SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD Address: Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China FRN: 0037332095 Tel: 852 96508821 Email: [email protected] Signed by (printed name): Kelvin Wong Signature:

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD the undersigned, hereby authorizes Bay Area Compliance Laboratories Corp. (Shenzhen) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. (Shenzhen) on our behalf shall have the same effect as our own action. We, 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. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Kelvin Wong Manager

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] FCC Confidential Authorization Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2BRBT-KASTRAL251219 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD hereby requests long- term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Kelvin Wong Manager

SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] Product Similarity Declaration Date: 2025-12-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam, We SHENZHEN ONWA MARINE ELEC TRONICS TECHNOLOGY CO LTD hereby declare that we have a product named Marine Navigation Equipment (Model number: K- Astral 12S, FCC ID: 2BRBT-KASTRAL251219) was tested by Bay Area Compliance Laboratories Corp. (Shenzhen). Meanwhile, for our marketin g purpose, we would like to list a series models ( K-Astral 8 ， K-Astral 8C, K-Astral 8S, K-Astral 8A, K-Astral 8X, K-Astr al 12, K-Astral 12A, K-Astral 12C, K-Astral 12X) on reports and certific ate. All the models are identical in electrically, the detailed description is as follows: SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD ADD:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Tel: 852 96508821 Email: [email protected] Model Dimensions (L*W*H) Weight Display Display Area (W*H) Built-in GNSS Antenna Transducer External GNSS antenna (KA-09) Sales channels K-Astral 8 276.1*165.9*81.9 mm (10.87*6.53*3.05 in) 1.1kg (2.4 lbs) 8 inch TFT LCD 162.05*121.54 mm (6.38*4.79 in) Yes No Yes Offline K-Astral 8C 276.1*165.9*81.9 mm (10.87*6.53*3.05 in) 1.1kg (2.4 lbs) 8 inch TFT LCD 162.05*121.54 mm (6.38*4.79 in) Yes Yes Yes Offline K-Astral 8S 276.1*165.9*81.9 mm (10.87*6.53*3.05 in) 1.1kg (2.4 lbs) 8 inch TFT LCD 162.05*121.54 mm (6.38*4.79 in) Yes Yes Yes Online K-Astral 8A 276.1*165.9*81.9 mm (10.87*6.53*3.05 in) 1.1kg (2.4 lbs) 8 inch TFT LCD 162.05*121.54 mm (6.38*4.79 in) No No Yes Offline K-Astral 8X 276.1*165.9*81.9 mm (10.87*6.53*3.05 in) 1.1kg (2.4 lbs) 8 inch TFT LCD 162.05*121.54 mm (6.38*4.79 in) No Yes Yes Offline K-Astral 12 369.9*234.9*84.8 mm (14.56*9.25*3.17 in) 2.4kg (5.5 lbs) 12.1 inch TFT LCD 245.76*184.32 mm (9.68*7.26 in) Yes No Yes Offline K-Astral 12C 369.9*234.9*84.8 mm (14.56*9.25*3.17 in) 2.4kg (5.5 lbs) 12.1 inch TFT LCD 245.76*184.32 mm (9.68*7.26 in) Yes Yes Yes Offline K-Astral 12S 369.9*234.9*84.8 mm (14.56*9.25*3.17 in) 2.4kg (5.5 lbs) 12.1 inch TFT LCD 245.76*184.32 mm (9.68*7.26 in) Yes Yes Yes Online K-Astral 12A 369.9*234.9*84.8 mm (14.56*9.25*3.17 in) 2.4kg (5.5 lbs) 12.1 inch TFT LCD 245.76*184.32 mm (9.68*7.26 in) No No Yes Offline K-Astral 12X 369.9*234.9*84.8 mm (14.56*9.25*3.17 in) 2.4kg (5.5 lbs) 12.1 inch TFT LCD 245.76*184.32 mm (9.68*7.26 in) No Yes Yes Offline We confirm that all information above is tr ue, and we’ll be responsible for all the consequences. Plea se contact with me if you have any question. Sincerely Yours, Signature: Kelvin Wong Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 1 of 9 EUT EXTERNAL PHOTOGRAPHS Transducer (Only sold with Model K-Astral 8C, K-Astral 8X, K-Astral 12C, K-Astral 12X) K-Astral 12S K-Astral 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 2 of 9 Model: K-Astral 12S Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 3 of 9 PWR/DATA RJ45 GNSS ANT Port NMEA2000 Transducer Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 4 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 5 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 6 of 9 Model: K-Astral 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 7 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 8 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-EXP Page 9 of 9 GPS KA-09 External Anatenna

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF FCC ID LABEL AND LOCATION Model: K-Astral 12S FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 8 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 8C FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 8S FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 8A FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 8X FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 12 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 12A FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 12C FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501Z35009E-RF Model: K-Astral 12X FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 1 of 27 EUT INTERNAL PHOTOGRAPHS Model: K-Astral 12S Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 2 of 27 GPS Internal Antenna 2.4G WIFI Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 3 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 4 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 5 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 6 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 7 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 8 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 9 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 10 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 11 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 12 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 13 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 14 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 15 of 27 Model: K-Astral 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 16 of 27 GPS ANT WIFI ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 17 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 18 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 19 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 20 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 21 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 22 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 23 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 24 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 25 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 26 of 27 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-INP Page 27 of 27

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-00 TR-EM-RF004 Page 115 of 118 Version 4.1 RF EXPOSURE EVALUATION MPE-Based Exemption Applicable Standard According to subpart 15.247 (i) and subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 v01 Interim General RF Exposure Guidance MPE-Based Exemption: General frequency and separation-distance dependent MPE-based effective radiated power(ERP) thresholds are in Table B.1 [Table 1 of § 1.1307(b)(3)(i)(C)] to support an exemptionfrom further evaluation from 300 kHz through 100 GHz. Ris the minimum separation distance in meters f = frequency in MHz For multiple RF sources: Multiple RF sources are exempt if: in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation: Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-00 TR-EM-RF004 Page 116 of 118 Version 4.1 Result Antenna Gain#ERP Mode Frequency (MHz) Tune up conducted power # (dBm) (dBi)(dBd)(dBm)(W) Evaluation Distance (m) ERP Limit (W) 2.4G WIFI2412-246222 1.83-0.3221.680.1470.20.768 Note: The tune up conducted power and antenna gain was declared by the applicant. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant

Antenna Specification Material code: 338-0230202-001 Model: K-Astral ANT Company Information: SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD Bldg. B, RM 809, Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Antenna picture Unit: mm 2450MHz

Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF004 Page 1 of 118 Version 4.1 TEST REPORT Applicant Name:SHENZHEN ONWA MARINE ELECTRONICS TECHNOLOGY CO LTD Address:Bldg. B, RM 809,Qianwan Key &Core Technology Industrial Park, Xixiang, Bao an Shenzhen, Guangdong China Report Number:2501Z35009E-RF-00 FCC ID:2BRBT-KASTRAL251219 Test Standard (s) FCC PART 15.247 Sample Description Product Type:Marine Navigation Equipment Model No.:K-Astral 12S Multiple Model(s) No.:K-Astral 8, K-Astral 8C, K-Astral 8S, K-Astral 8A, K-Astral 8X, K-Astral 12, K-Astral 12A, K-Astral 12C, K-Astral 12X Trade Mark:ONWA Date Received:2025-11-25 Issue Date:2026-04-23 Test Result:Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By:Approved By: Allen BaiNancy Wang RF EngineerRF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-00 TR-EM-RF004 Page 2 of 118 Version 4.1 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ..........................................................................................................................3 GENERAL INFORMATION ........................................................................................................................................4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)......................................................................................4 OBJECTIVE ....................................................................................................................................................................4 TEST METHODOLOGY....................................................................................................................................................4 MEASUREMENT UNCERTAINTY .....................................................................................................................................5 TEST FACILITY ..............................................................................................................................................................5 SYSTEM TEST CONFIGURATION ...........................................................................................................................6 SUMMARY OF TEST RESULTS ................................................................................................................................9 TEST EQUIPMENT LIST ..........................................................................................................................................10 REQUIREMENTS AND TEST PROCEDURES ......................................................................................................12 AC LINE CONDUCTED EMISSIONS...............................................................................................................................12 SPURIOUS EMISSIONS ..................................................................................................................................................14 6 DB EMISSION BANDWIDTH & 99% OCCUPIED BANDWIDTH ....................................................................................17 MAXIMUM CONDUCTED OUTPUT POWER ...................................................................................................................19 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE....................................................................................................20 CONDUCTED SPURIOUS EMISSION...............................................................................................................................21 POWER SPECTRAL DENSITY ........................................................................................................................................22 DUTY CYCLE ...............................................................................................................................................................23 ANTENNA REQUIREMENT .....................................................................................................................................24 TEST DATA AND RESULTS .....................................................................................................................................25 SPURIOUS EMISSIONS ..................................................................................................................................................25 6DB EMISSION BANDWIDTH........................................................................................................................................92 99% OCCUPIED BANDWIDTH ......................................................................................................................................96 MAXIMUM CONDUCTED OUTPUT POWER .................................................................................................................100 POWER SPECTRAL DENSITY ......................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-TSP Page 1 of 3 TEST SETUP PHOTOGRAPHS Model: K-Astral 12S Radiated Emissions View (Below 30MHz) Radiated Emissions View (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-TSP Page 2 of 3 Radiated Emissions View (1-18 GHz) Radiated Emissions View (18-25 GHz) Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501Z35009E-RF-TSP Page 3 of 3 Model: K-Astral 8 Radiated Emissions View (Below 30MHz) Radiated Emissions View (Below 1 GHz)