2AJZ3-R120RC BOAT

RC BOAT 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. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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 device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement in portable exposure condition without restriction.

Shantou Chenghai Huiqi Toys Factory Covered Equipment Certification Attestation Letter 6/11/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AJZ3-R120 Shantou Chenghai Huiqi Toys Factory (“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. Shantou Chenghai Huiqi Toys Factory (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Shantou Chenghai Huiqi Toys Factory (“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: Mike Chen Title: Manager Company Name: Shantou Chenghai Huiqi Toys Factory Date: 6/11/2026

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Shantou Chenghai Huiqi Toys Factory DATE: 6/11/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen Tongzhou Testing Co.,Ltd. (1st Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China) 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, still resides with Shantou Chenghai Huiqi Toys Factory (Guangfeng Industrial District, Dengfeng Road, Chenghai Area, Shantou, China) <Signature> Name: Mike Chen Title: Manager Applicant Company: Shantou Chenghai Huiqi Toys Factory

Date: 6/11/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature> Name: Mike Chen Title: Manager Company: Shantou Chenghai Huiqi Toys Factory

Date: 6/11/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AJZ3-R120 Product Name: RC BOAT Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • Schematics • Block diagram • Operation description 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> Name: Mike Chen Title: Manager Company: Shantou Chenghai Huiqi Toys Factory

Shantou Chenghai Huiqi Toys Factory Guangfeng Industrial District, Dengfeng Road, Chenghai Area, Shantou, China Date: 2026/6/11 Dear Sir/Madam, We, Shantou Chenghai Huiqi Toys Factory, Hereby declares the following statement, PCB board, circuit, structure and internal of these model(s) are the same, Only model name and appearance color are different for these model: FCC ID: 2AJZ3-R120 Product name: RC BOAT Model no.: DE127, DE126, DE126-1, DE128, R120, DE127-1, SK-1, 5016, HQ2011-15A, HQ2011- 15B, HQ2011-15C, H10, R46, R47, R48, H11, R49, R50, H12, HQ5016, R51, R52, R53, R54, R55, R56, R57, R58, R59, R60, R61, R62, R63, R64, R65, R66, R67, R68, R69, R70, R71, R72, R73, R74, R75, R76, R77, R78, R79, R80, R81, R82, R83, R84, R85, R86, R87, R88, R89, R90, R91, R92, R93, R94, R95, R96, R97, R98, R99, R100, R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112, R113, R114, R115, R116, R117, R118, R119, R120, R121, R122, R123, R124, R125, R126, R127, R128, R129, R130, R131 Sincerely, Name/Title： Mike Chen / Manager Company: Shantou Chenghai Huiqi Toys Factory Address: Guangfeng Industrial District, Dengfeng Road, Chenghai Area, Shantou, China Phone: 0754-85635510 Fax: 0754-85635510 E-Mail: [email protected] Shantou Chenghai Huiqi Toys Factory Guangfeng Industrial District, Dengfeng Road, Chenghai Area, Shantou, China

Report No.: TZ0035260505PH02 Page 1 of 4 External Photographs of EUT External Photo 1 External Photo 2 Report No.: TZ0035260505PH02 Page 2 of 4 External Photo 3 External Photo 4 Report No.: TZ0035260505PH02 Page 3 of 4 External Photo 5 External Photo 6 Report No.: TZ0035260505PH02 Page 4 of 4 External Photo 7

The size of the label is 15mm*10mm with White forecolor. The size of the logo is 2mm*5mm. FCC ID: 2AJZ3-R120

Report No.: TZ0035260505PH03 Page 1 of 3 Internal Photographs of EUT Internal Photo 1 Internal Photo 2 Report No.: TZ0035260505PH03 Page 2 of 3 Internal Photo 3 Internal Photo 4 SRD antenna Report No.: TZ0035260505PH03 Page 3 of 3 Internal Photo 5

FCC ID: 2AJZ3-R120 Page 1 of 2 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). FCC ID: 2AJZ3-R120 Page 2 of 2 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Results RF Exposure at Separation distance (cm): 0.5 Mode Antenna Frequency [MHz] Conducted Power [dBm] Manufacturing tolerance Antenna Gain [dBi] Max of ERP and Conducted Power including Tune Up SAR- based exemption threshold Pth [mW] Target Power [dBm] Tolerance ±[dB] [dBm] [mW] SRD Ant1 2407 1.17 0.5 1 1.09 1.5 1.41 2.78 SRD Ant1 2442 1.28 1 1 1.09 2 1.58 2.75 SRD Ant1 2477 1.48 1 1 1.09 2 1.58 2.72 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The Maximum Erp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 1 of 23 Appendix Test Data for SRD (Conducted Measurement) Product Name: RC BOAT Trade Mark: / Test Model: DE127 FCC ID: 2AJZ3-R120 Environmental Conditions Temperature: 23.5°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Max Zhang NOTE N/A Appendix A: DTS Bandwidth Test Result Test Mode Antenna Frequency [MHz] DTS BW [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict SRD Ant1 2407 0.676 2406.652 2407.328 0.5 PASS SRD Ant1 2442 0.644 2441.668 2442.312 0.5 PASS SRD Ant1 2477 0.672 2476.664 2477.336 0.5 PASS Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 2 of 23 Test Graphs SRD-Ant1-2407-PASS SRD-Ant1-2442-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 3 of 23 SRD-Ant1-2477-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 4 of 23 Appendix B: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency [MHz] OCB [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict SRD Ant1 2407 1.0618 2406.4580 2407.5198 --- --- SRD Ant1 2442 1.0578 2441.4618 2442.5196 --- --- SRD Ant1 2477 1.0197 2476.5066 2477.5263 --- --- Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 5 of 23 Test Graphs SRD-Ant1-2407 SRD-Ant1-2442 Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 6 of 23 SRD-Ant1-2477 Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 7 of 23 Appendix C: Maximum peak conducted output power Test Result Peak Test Mode Antenna Frequency [MHz] Conducted Peak Power [dBm] Conducted Limit [dBm] Verdict SRD Ant1 2407 1.17 ≤30 PASS SRD Ant1 2442 1.28 ≤30 PASS SRD Ant1 2477 1.48 ≤30 PASS Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 8 of 23 Test Graphs Peak SRD-Ant1-2407-PASS SRD-Ant1-2442-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 9 of 23 SRD-Ant1-2477-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 10 of 23 Appendix D: Maximum peak power spectral density Test Result Test Mode Antenna Frequency [MHz] Result [dBm/3kHz] Limit [dBm/3kHz] Verdict SRD Ant1 2407 -5.39 ≤8.00 PASS SRD Ant1 2442 -5.15 ≤8.00 PASS SRD Ant1 2477 -4.90 ≤8.00 PASS Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 11 of 23 Test Graphs SRD-Ant1-2407-PASS SRD-Ant1-2442-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 12 of 23 SRD-Ant1-2477-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 13 of 23 Appendix E: Band edge measurements Test Result Test Mode Antenna Ch. Name Frequency [MHz] Ref. Level [dBm] Result [dBm] Limit [dBm] Verdict SRD Ant1 Low 2407 -2.47 -47.54 ≤-22.47 PASS SRD Ant1 High 2477 -1.96 -48.39 ≤-21.96 PASS Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 14 of 23 Test Graphs SRD-Ant1-2407-PASS SRD-Ant1-2477-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 15 of 23 Appendix F: Conducted Spurious Emission Test Result Test Mode Antenna Frequency [MHz] Freq. Range [MHz] Ref. Level [dBm] Result [dBm] Limit [dBm] Verdict SRD Ant1 2407 0~Reference -1.45 -1.45 --- PASS SRD Ant1 2407 30~1000 -1.45 -63.05 ≤-21.45 PASS SRD Ant1 2407 1000~26500 -1.45 -38.26 ≤-21.45 PASS SRD Ant1 2442 0~Reference -2.13 -2.13 --- PASS SRD Ant1 2442 30~1000 -2.13 -61.89 ≤-22.13 PASS SRD Ant1 2442 1000~26500 -2.13 -37.47 ≤-22.13 PASS SRD Ant1 2477 0~Reference -1.91 -1.91 --- PASS SRD Ant1 2477 30~1000 -1.91 -63.2 ≤-21.91 PASS SRD Ant1 2477 1000~26500 -1.91 -37.57 ≤-21.91 PASS Note: offset(dB) in Reference test plots = caSRD loss(dB) + attenuator factor(dB); For spurious emissions plots from 30MHz to 26.5GHz, the caSRD loss and attenuator factors have been set in the 'Input Correction' of the Spectrum Analyzer during the test. Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 16 of 23 Test Graphs SRD-Ant1-2407-0~Reference-PASS SRD-Ant1-2407-30~1000-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 17 of 23 SRD-Ant1-2407-1000~26500-PASS SRD-Ant1-2442-0~Reference-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 18 of 23 SRD-Ant1-2442-30~1000-PASS SRD-Ant1-2442-1000~26500-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 19 of 23 SRD-Ant1-2477-0~Reference-PASS SRD-Ant1-2477-30~1000-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 20 of 23 SRD-Ant1-2477-1000~26500-PASS Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 21 of 23 Appendix G: Duty Cycle Test Result Test Mode Antenna Frequency [MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor [dB] SRD Ant1 2407 1.43 11.61 12.32 9.09 SRD Ant1 2442 1.44 11.64 12.37 9.08 SRD Ant1 2477 1.44 11.63 12.38 9.07 Note: offset(dB) = caSRD loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 22 of 23 Test Graphs NTNV-SRD-Ant1-2407 NTNV-SRD-Ant1-2442 Appendix Test Data of the Report No.: TZ0035260505FRF12 Page 23 of 23 NTNV-SRD-Ant1-2477

Report No.: TZ0035260505FRF12 Page 1 of 31 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. The test report apply only to the specific sample(s) tested under stated test conditions. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. TEST REPORT Report Number : TZ0035260505FRF12 Product Name : RC BOAT Model/Type reference : Refer to section 2.2 of this report FCC ID : 2AJZ3-R120 Prepared for : Shantou Chenghai Huiqi Toys Factory Guangfeng Industrial District, Dengfeng Road, Chenghai Area, Shantou, China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd. 1st Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Standards : FCC CFR Title 47 Part 15C, ANSI C63.10-2020 + Cor.1-2023 Date of Test : 2026-05-07 ~ 2026-05-26 Date of Issue : 2026-05-27 Prepared by : Lena Wen Reviewed by : Allen Lai Approved by : Max Zhang (Authorized Officer) Report No.: TZ0035260505FRF12 Page 2 of 31 ** Report Revise Record ** Report Version Revise Time Issued Date Valid Version Notes V1.0 / 2026-05-27 Valid Initial release Report No.: TZ0035260505FRF12 Page 3 of 31 TABLE OF CONTENTS 1. G E N E R A L I N F O R M A T I O N ....................................................... 4 1.1. Client Information ................................................................................................................... 4 1.2. Description of Device (EUT) ................................................................................................... 4 1.3. Wireless Function Tested in this Report .............................................................................. 4 1.4. EUT configuration ................................................................................................................... 5 1.5. Description of Test Facility .................................................................................................... 5 1.6. Statement of the Measurement Uncertainty ......................................................................... 6 1.7. Measurement Uncertainty ...................................................................................................... 6 1.8. Description of Test Modes ..................................................................................................... 6 1.9. Frequency of Channels .......................................................................................................... 7 2. T E S T M E T H O D O L O G Y ............................................................ 8 2.1. EUT Configuration .................................................................................................................. 8 2.2. EUT Exercise ........................................................................................................................... 8 2.3. Test Sample ............................................................................................................................. 8 3. S Y S T E M T E S T C O N F I G U R A T I O N .............................................. 9 3.1. Justification ............................................................................................................................. 9 3.2. EUT Exercise Software ........................................................................................................... 9 3.3. Special Accessories ............................................................................................................... 9 3.4. Block Diagram/Schematics .................................................................................................... 9 3.5. Equipment Modifications ....................................................................................................... 9 3.6. Test Setup ................................................................................................................................ 9 4. S U M M A R Y O F T E S T R E S U L T S ............................................... 10 5. T E S T R E S U L T .................................................................... 11 5.1. On Time and Duty Cycle ....................................................................................................... 11 5.2. Maximum Peak Conducted Output Power Measurement ................................................. 12 5.3. Power Spectral Density Measurement ................................................................................ 13 5.4. 6 dB Spectrum Bandwidth and Occupied Channel Bandwidth Measurement ............... 14 5.5. Radiated Emissions Measurement ...................................................................................... 15 5.6. Conducted Spurious Emissions and Band Edges Test .................................................... 24 5.8. Band-edge measurements for radiated emissions ........................................................... 26 5.9. Antenna Requirements ......................................................................................................... 29 6. L I S T O F M E A S U R I N G E Q U I P M E N T ......................................... 30 7. T E S T S E T U P P H O T O G R A P H S O F E U T ..................................... 31 8. E X T E R I O R P H O T O G R A P H S O F E U T ........................................ 31 9. I N T E R I O R P H O T O G R A P H S O F E U T ........................................ 31 Report No.: TZ0035260505FRF12 Page 4 of 31 1. G E N E R A L I N F O R M A T I O N 1.1. Client Information Applicant : Shantou Chenghai Huiqi Toys Factory Address : Guangfeng Industrial Dis…

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ANTENNAPASSIVETESTRESULTS Manufacturer DandanElectronicsFactory,Chenghai District,ShantouCity ProductName2.4Gantenna ModelNo.2.4G-ANT-001 StandardsANSI/IEEEStd149-2008 1.GeneralInformation 1.1TestingLaboratory TestLabSGS-CSTCStandardsTechnicalServicesCo., Ltd.ShenzhenBranch AddressNo.1Workshop,M-10,Middlesection,Science &TechnologyPark,NanshanDistrict, Shenzhen,Guangdong,China518057 1.2TestConfiguration Great-Circle-Cutmethodisusedtomeasuretheantenna3DGAINofEUTinOTAqualifiedanechoic chamber.EquipmentUnderTest(EUT)geometrycentreverticalprojectionatthecentreof platform,thedistancefromEUTtomeasurementantennais5m 2. EquipmentList Type of Equipment ModelNumberManufactureCalibration Date Valid Period Network Analyzer E5071CS/N MY46523591 Keysight2025/4/112026/4/10 Quad-RidgeHorn Antenna 700 MHz-10GHz EMCO3164-08 ETS-Lindgren L.P. N/AN/A MAPSControllerEMCENTERS/N 160485 ETS-Lindgren L.P. N/AN/A 3. MeasurementUncertainty Item2400-2500MHz (dB) Gain 1.09 Efficiency0.88 MeasurementUncertainty(95% CONFIDENCEINTERVAL)K=2 4. Test Results 4.1 Test Summary ProductFrequency(MHz)Efficiency(%)Gain (dBi) 2.4G On-boardPCB242012.79-2.51 antennaa 4.22.4GOn-boardPCBantennaTestResults FreeSpace Frequency (MHz) Efficiency (dB) Efficiency (%) Gain (dBi) 2400-4.4881335.57840.981075 2410-4.6141234.56110.985322 2420-4.5450935.11491.09477 2430-4.826632.91090.982451 2440-5.0784431.05670.849666 2450-5.2161230.08760.821263 2460-5.7082326.86440.483978 2470-6.3230223.3183-0.08267 2480-6.8943320.4441-0.56882 2490-7.0199619.8611-0.59378 2500-6.5858221.9492-0.13295 5.PatternPlots 6.3-DAntennaPattern 7.TheEUTandTestConfiguration PhotoofEUT(Pleasecheckthehighlightedpart) -EndoftheResults-

Report No.: TZ0035260505PH01 Page 1 of 2 Test Setup Photos of the EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz Report No.: TZ0035260505PH01 Page 2 of 2 RF Conducted Test