2AM3B-CM-MRCWireless winch remote control system for vehicle

Electric winch wireless controller instructions A, Features Overview This wireless remote control firing frequency of 315MHz, the control range of more than 25 m, used in electric winch wireless control. B, The wireless remote control parameters 1, Working voltage: DC12V, 23A battery. 2, The working current: 25mA ± 5mA 3, Transmitting frequency: 315MHz 4, The transmit power: <10dBm 5, Standby current: <5uA C, Using The remote controler has 2 buttons. Press and hold on the remote control "OUT" or "IN" button, it will trigger 315MHz high frequency. The high-frequency signal emitted by the antenna to control receiver unit. D, Installation and function 1,Disconnect Power to the winch 2,Confirm that the plug is the correct type for this winch and plug it in 3.Select an area for the receiver on the vehicle close enough to the winch to allow cable connection 4.Investigate the chosen area to make sure no components will be damaged by installation. 5.Permanently (optional) mount the remote control receiver to the vehicle using appropriate hardware (not included). 6.Preare the winch for operation as explained in its manual 7.Reconnect winch’s power 8.Release the clutch handle and pull out about 10 feet of wire rope Leave the wire rope laying on the ground and stay clear of the wire rope and hook 9.Reengage the clutch handle 10.Watch the spool and wire rope and briefly,press the out button on the remote control to verify that the cable feeds out WARNING! If the cable does not feed out ,check and correct the winch’s wiring. Retest after correction. 11.Watch the spool and wire rope and briefly press the in button on the remote control to verify that the cable retracts WARNING! If the cable does not feed out ,check and correct the winch’s wiring .Retest BOTH functions after correction. 12.If the remote operates the winch properly, it is ready for use. 13.After use, disconnect control box from winch to prevent accidental operation E, Wiring diagram F,WARNING! To prevent serious injury 1. Disconnect control box from winch before service and after every use. WINCH CAN OPERATE SUDDENLY AT ANY TIME WHILE CONNECTED. 2. Stand clear of winch, fairlead, and wire rope while connected. Keep bystanders away. 3. Only operate controls when winch and entire wire rope is within view. 4. Use with vehicle mounted recovery winches only. Do not use for any other application. 5. Confirm control box mounting location has no wire or components that can be damaged drilling. 6. Read winch manual before use. FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

Ningbo Chima winch co.,ltd. Wangjiaqiao Villiage, Dongqiao Town, Haishu District,Ningbo, Zhejiang Province,China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-7-22 To whom it may concern: We, Ningbo Chima winch co.,ltd. , hereby certify that the equipment for which authorization is sought (FCC ID: 2AM3B-CM-MRC) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature LEO Zheng Manager Ningbo Chima winch co.,ltd. 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V03

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2024-7-22> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AM3B-CM-MRC CM-MRC For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： LEO Zheng/Manager Company: Ningbo Chima winch co.,ltd. Address: Wangjiaqiao Villiage, Dongqiao Town, Haishu District,Ningbo, Zhejiang Province,China Phone: 0574-83082762 Fax: 0574-82819139 E-Mail: [email protected]

Ningbo Chima winch co.,ltd. Wangjiaqiao Villiage, Dongqiao Town, Haishu District,Ningbo, Zhejiang Province,China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-7-22 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AM3B-CM-MRC including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： LEO Zheng/Manager Company: Ningbo Chima winch co.,ltd. Address: Wangjiaqiao Villiage, Dongqiao Town, Haishu District,Ningbo, Zhejiang Province,China Phone: 0574-83082762 Fax: 0574-82819139 E-Mail: [email protected]

FCC ID: 2AM3B-CM-MRC External Photos of the EUT FCC ID: 2AM3B-CM-MRC

Label and Location Size: L: 1.5cm*W: 0.3cm Label and Location FCC ID : 2AM3B-CM-MRC

FCC ID: 2AM3B-CM-MRC Internal Photos of the EUT FCC ID: 2AM3B-CM-MRC ANT

RF Exposure evaluation FCC ID: 2AM3B-CM-MRC 1.1. Applicable Standard According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2. Requirement According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.23 “ [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 1.3. Manufacturing tolerance Freq. (MHz) Field strength(max)(dBuV/m) EIRP (max) (dBm) Turn-up Power (dB) Max tune up power (dBm) [P] 315MHz 79.22 -16.04 -16.0±1 -15.0 Note: EIRP=E-104.8+20logD, D=3 Page 2 of 2 2. E v a l u a t i o n R e s u l t Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) RF output power (including tune-up tolerance) SAR Test Exclusion Threshold SAR Test Exclusion dBm mW SRD 0.315 5 -15.0 0.0316 0.0035<3.0 Yes 3. C o n c l u s i o n The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06 .....................End of Report.........................

1. Antenna Description: Antenna type PCB antenna Model CM-DRC Frequency range 2400MHz-2500 MHz Manufacturer Ningbo Chima winch co.,ltd. Gain 0.38 dBi 2. Antenna Photo: Length:25.96mm Length:16.98mm Length:17.17mm Width:3.13mm

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China FCC PART 15 SUBPART C TEST REPORT FCC PART 15.231 Report Reference No. ..................... : FCC ID. ............................................ : CTA24070102801 2AM3B-CM-MRC Compiled by ( position+printed name+signature) .. : File administrators Jinghua Xiao Supervised by ( position+printed name+signature) .. : Project Engineer Xudong Zhang Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Jul. 05, 2024 Testing Laboratory Name .............: Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Applicant’s name ............................ : Ningbo Chima winch co.,ltd. Address ............................................ : Wangjiaqiao Villiage, Dongqiao Town, Haishu District, Ningbo, Zhejiang Province, China Test specification ...........................: Standard ........................................... : FCC Part 15.231 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology 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. Test item description .....................: Wireless winch remote control system for vehicle Trade Mark ....................................... : N/A Manufacturer .................................... : Ningbo Chima winch co.,ltd. Model/Type reference....................... : CM-MRC Listed Models .................................. : N/A Modulation ....................................... : ASK Frequency .......................................... 315.00MHz Ratings ............................................. : DC 12.0V From Battery Result................................................ : PASS Report No.: CTA24070102801 Page 2 of 22 T E S T R E P O R T Equipment under Test : Wireless winch remote control system for vehicle Model /Type : CM-MRC Listed Models : N/A Applicant : Ningbo Chima winch co.,ltd. Address : Wangjiaqiao Villiage, Dongqiao Town, Haishu District, Ningbo, Zhejiang Province, China Manufacturer : Ningbo Chima winch co.,ltd. Address : Wangjiaqiao Villiage, Dongqiao Town, Haishu District, Ningbo, Zhejiang Province, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA24070102801 Page 3 of 22 Contents 1 T E S T S T A N D A R D S ................................................................. 4 2 S U M M A R Y ............................................................................ 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Equipment Under Test 5 2.4 Short description of the Equipment under Test (EUT) 5 2.5 Block Diagram of Test Setup 5 2.6 Special Accessories 6 2.7 Related Submittal(s) / Grant (s) 6 2.8 Modifications 6 3 T E S T E N V I R O N M E N T .............................................................. 7 3.1 Address of the test laboratory 7 3.2 Test Facility 7 3.3 Environmental conditions 7 3.4 Summary of measurement results 8 3.5 Statement of the measurement uncertainty 8 3.6 Equipments Used during the Test 8 4 T E S T C O N D I T I O N S A N D R E S U L T S ........................................... 10 4.1 AC Power Conducted Emission 10 4.2 Radiated Emission 11 4.3 20dB Bandwidth 15 4.4 Deactivation Time 16 4.5 Antenna Requirement 17 5 T E S T S E T U P P H O T O S O F T H E E U T ......................................... 18 6 P H O T O S O F T H E E U T ........................................................... 19 Report No.: CTA24070102801 Page 4 of 22 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.231:Periodic operation in the band 40.66-40.70 MHz and above 70 MHz. ANSI C63.10:2013 : American National Standard for Testing Unlicensed Wireless Devices Report No.: CTA24070102801 Page 5 of 22 2 S U M M A R Y 2.1 General Remarks Date of receipt of test sample : Jun. 28, 2024 Testing commenced on : Jun. 28, 2024 Testing concluded on : Jul. 05, 2024 2.2 Product Description Product Name: Wireless winch remote control system for vehicle Model/Type reference: CM-MRC Testing sample ID： CTA240701028-1# (Engineer sample), CTA240701028-2#(Normal sample) Power supply: DC 12.0V From Battery Modulation: ASK Operation frequency: 315.00MHz Channel number: 1 Antenna type: PCB antenna Antenna gain: 0.38 dBi 2.3 Equipment Under Test Power supply system utilised Power supply voltage : ○ 230V / 50 Hz ○ 120V / 60Hz ● 12 V DC ○ 24 V DC ○ Other (specified in blank below) DC 12.0V From Battery 2.4 Short description of the Equipment under Test (EUT) This is a Wireless winch remote control system for vehicle. For more details, refer to the user’s manual of the EUT. 2.5 Block Diagram of Test Setup EUT DC 12.0V From Battery Report No.: CTA24070102801 Page 6 of 22 2.6 Special Accessories Follow auxiliary equipment(s) test with EUT that provided by the manufacturer or laboratory is listed as follow: Description Manufacturer Model Technical Parameters Certificate Provided by / / / / / / / / / / / / 2.7 Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended for the device filing to comply with Section 15.231 of the FCC Part 15, Subpart C Rules. 2.8 Modifications No modifications were implemented to meet testing criteria. Report No.: CTA24070102801 Page 7 of 22 3 T E S T…

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FCC ID: 2AM3B-CM-MRC Test Setup Photos of the EUT