2AOFDL-LRNWB28Lierda Feng Series WB28 LoRa Mesh Module

Zhejiang Lierda Internet of Things Technology Co., Ltd.

Application Details

Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
Date of Grant: Nov 26, 2025
Application Purpose: Original Equipment
Equipment Note: Lierda Feng Series WB28 LoRa Mesh Module
Frequency Range: 902.40000000 - 926.02500000
Company: Zhejiang Lierda Internet of Things Technology Co., Ltd.
Country: China

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Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Zhejiang Lierda Internet of Things Technology Co., Ltd. To: Federal Communications Commission Date: 2025/11/21 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Section 2.911(d)(5)(i) and Section 2.911(d)(5)(ii) (KDB 986446 D01 Covered Equipment) Section 2.911(d)(5)(i) [Zhejiang Lierda Internet of Things Technology Co., Ltd.] (“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. Section 2.911(d)(5)(ii) [Zhejiang Lierda Internet of Things Technology Co., Ltd.] (“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. Type of Equipment subject to FCC Certification: Lierda Feng Series WB28 LoRa Mesh Module FCC ID: 2AOFDL-LRNWB28 If you have any questions, please feel free to contact me Contact Person: LvJing Qiu Position in the Company: 86-18067988373 Date of Signature: 2025/11/21 ___________________________ Signatory (signature of the applicant)

Attestation Statements

Zhejiang Lierda Internet of Things Technology Co., Ltd. Room 1402, Building 1, No.1326, Wenyi West Road, Cangqian street, Yuhang District, Hangzhou, Zhejiang Prov. China Date: 2025/09/25 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AOFDL-LRNWB28 FRN: 0027026012 US Agent – Attestation Statement / Part 2.911(d)(7) Zhejiang Lierda Internet of Things Technology Co., Ltd. certifies, that as of [2025-09-25], we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2AOFDL- LRNWB28. Zhejiang Lierda Internet of Things Technology Co., Ltd., accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Zhejiang Lierda Internet of Things Technology Co., Ltd. for FCC ID: 2AOFDL-LRNWB28. Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: Zhejiang Lierda Internet of Things Technology Co., Ltd. Designated Agent: FCC US Agent, LLC Company Representative: LvJing Qiu Designated Agent Representative: Tim Payne Signature: Signature:

Cover Letter(s)

Zhejiang Lierda Internet of Things Technology Co., Ltd. Date: 2025-09-25 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The Zhejiang Lierda Internet of Things Technology Co., Ltd., the undersigned, hereby authorizes Miss. Wendy Zhan from Shenzhen Morlab Communications Technology Co., Ltd., to act on the behalf of the Zhejiang Lierda Internet of Things Technology Co., Ltd. solely in matters relating to the application for an FCC equipment authorization for FCC ID: 2AOFDL-LRNWB28 including the signing of documents in connection with this Application. Necessary acts carried out Shenzhen Morlab Communications Technology Co., Ltd. on our behalf of the Zhejiang Lierda Internet of Things Technology Co., Ltd. in connection with the Application shall have the same effect as acts of the Zhejiang Lierda Internet of Things Technology Co., Ltd.. Zhejiang Lierda Internet of Things Technology Co., Ltd. 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. Thank you for your attention to this matter. Yours Sincerely, Signatory: Contact name: LvJing Qiu Title: Certified Engineer Tel: 86-18067988373 Email: [email protected] Company name: Zhejiang Lierda Internet of Things Technology Co., Ltd.

Cover Letter(s)

Zhejiang Lierda Internet of Things Technology Co., Ltd. Date:2025-09-25 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: Request of Confidentiality for FCC ID: 2AOFDL-LRNWB28 To Whom it may concern: Pursuant to sections 0.457 and 0.459 of Commission’s Rules(CFR 47), and Section 552(b)(4) of the Freedom of Information Act, Zhejiang Lierda Internet of Things Technology Co., Ltd. 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 DA04-1705. This provision will give Zhejiang Lierda Internet of Things Technology Co., Ltd. temporary confidentiality of commercially sensitive information prior to product release. The requested Permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT AND SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Operational Description 3 Schematics 4 BOM SHORT-TERM 5 External Photos 6 Internal Photos 7 Test-Setup Photos 8 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Signatory: Name: LvJing Qiu Company name: Zhejiang Lierda Internet of Things Technology Co., Ltd. Tel: 86-18067988373 Email: [email protected]

Cover Letter(s)

Zhejiang Lierda Internet of Things Technology Co., Ltd. version01 Modular Approval Request Letter Date: 2025-09-25 FCC ID: 2AOFDL-LRNWB28 Type of Equipment: Lierda‘Feng’Series WB28 LoRa Mesh Module The following requirements according to FCC Part 15.212 are met: i RF shielding The radio portion has his own shielding (see external photos). ii Buffered modulation/data inputs It has been integrated in the chipset STM8L051F3P6TR. iii Power supply regulation It is integrated in circuits of U1. iv Antenna requirements section 15.203, 15.204 b and 15.204 c The EUT meets the FCC antenna requirements. v Stand alone test configuration Please referring to test set up configuration photo vi Labelling The module has its own label. The instruction for labelling rules for the host device has been stated in the users manual vii Compliance on specific rule or operating requirements The required FCC rules has been fulfilled and all instructions for maintaining compliance has been clearly stated in the users manual viii RF Exposure RF exposure requirements are fulfilled for mobile configuration. The installation of the module is restricted to mobile host devices what is clearly stated in the installation instruction of the user manual. For portable applications OEM integrators need SAR evaluation and an own FCC ID. Name: LvJing Qiu Title: Certified Engineer Company: Zhejiang Lierda Internet of Things Technology Co., Ltd.

RF Exposure Info

NOTE: This document is issued by Shenzhen Morlab Communications Technology Co., Ltd., the test report shall not be reproduced except in full without prior written permission of the company. The test results apply only to the particular sample(s) tested and to the specific tests carried out which is available on request for validation and information confirmed at our website. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 1 of 8 REPORT No.：SZ25070176S01 RF EXPOSURE EVALUATION REPORT APPLICANT : Zhejiang Lierda Internet of Things Technology Co., Ltd. PRODUCT NAME : Lierda Feng Series WB28 LoRa Mesh Module MODEL NAME : L-LRNWB28-84MN4 BRAND NAME : Lierda FCC ID : 2AOFDL-LRNWB28 STANDARD(S) : 47 CFR Part 2(2.1091) RECEIPT DATE : 2025-07-17 TEST DATE : 2025-08-06 to 2025-09-08 ISSUE DATE : 2025-11-20 Edited by: Peng Mi (Rapporteur) Approved by: Shen Junsheng (Supervisor) MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] REPORT No.：SZ25070176S01 Page2of 8 DIRECTORY 1. Technical Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 1.1 Applicant and Manufacturer Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 1.2 Equipment under Test (EUT) Description ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 1.3 Applied Reference Documents ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4 2. Device Category and RF Exposure Limit ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 5 3. Maximum Average Power Summary ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6 4. RF Exposure Assessment ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 7 Annex A Testing Laboratory Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 8 Change History Version Date Reason for Change 1.0 2025-11-20 First edition MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] REPORT No.：SZ25070176S01 Page3of 8 1. Technical Information Note: Provide by applicant. 1.1 Applicant and Manufacturer Information Applicant: Zhejiang Lierda Internet of Things Technology Co., Ltd. Applicant Address: Room 1402, Building 1, No.1326, Wenyi West Road, Cangqian street, Yuhang District, Hangzhou, Zhejiang Prov. China Manufacturer: Zhejiang Lierda Internet of Things Technology Co., Ltd. Manufacturer Address: Room 1402, Building 1, No.1326, Wenyi West Road, Cangqian street, Yuhang District, Hangzhou, Zhejiang Prov. China 1.2 Equipment under Test (EUT) Description Product Name: Lierda Feng Series WB28 LoRa Mesh Module Sample No.: 1#, 2# Hardware Version: V01 Software Version: V01 Equipment Type: LoRa Operating Frequency: 902.4MHz–926.025MHz Antenna Type: Rod Antenna Antenna Gain: 4.57dBi Note 1: The EUT description presented in the report are provided by applicant and/or manufacturer, and the test laboratory is not responsible for the accuracy of the information. For a more detailed description, please refer to Specification or User’s Manual supplied by the applicant and/or manufacturer. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] REPORT No.：SZ25070176S01 Page4of 8 1.3 Applied Reference Documents Leading reference documents for testing: Identity Document Title Remark 47 CFR Part 2(2.1091) Radio Frequency Radiation Exposure Assessment: mobile devices / KDB 447498 D01v06 General RF Exposure Guidance / Note 1: Any additions, deviation, or exclusions from the method shall be noted in the “Remark". MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] REPORT No.：SZ25070176S01 Page5of 8 2. Device Category and RF Exposure Limit Based on 47 CFR 2.1091, this device belongs to mobile device category with General Population/Uncontrolled exposure. Mobile Devices: 47 CFR 2.1091(b) For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter's radiating structure(s) and the body of the user or nearby persons. In this context, the term “fixed location” means that the device is physically secured at one location and is not able to be easily moved to another location. Transmitting devices designed to be used by consumers or workers that can be easily re-located, such as wireless devices associated with a personal computer, are considered to be mobile devices if they meet the 20 centimeter separation requirement. General Population/Uncontrolled Exposure: The general population/uncontrolled exposure limits are applicable to situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment may n…

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Test Report

8 东莞市森岭智能科技有限公司东莞市松山湖工业东路现代企业加速器6栋402 TEL：86-0769-89208968 FAX：86-0769-89208969 www.sleing.com 承认书项目表序号项目附件资料备注有无 1承认书封面（Spec Cover）□ □ 1.封面需注明产品料号、品名规格 2.经主管核准后加盖公司印章客户满意度（Customer satisfaction） □ □ 请客户对我司给予真诚的评价 2承认书项目表（Spec Item ）□ □ 3工程成品图（Drawing）□ □ 4电性测试报告（Test Reports ）□ □ 5S参数测试（S Parameter）□ □ 与产品一致 6 方向图(Patten)/测试效率（Test Efficiency） □□ 与产品一致 7SGS报告(SGS Report)□ □ 1.需依产品材质类别及颜色分别提供 2.报告有效期为一年 8其它□□ 依贵司具体要求另行说明 9□□ 10□ □ 11□ □ 说明： 1.承认书内容需依查核表项目依顺序排列。 2.承认书依客户要求打印份数，SGS报告需加盖工程章. 3.所有材料一律经过客户确认后，任何材料/制程/可能影响产品品质及环境品质的变更，都必需重新送样给客户确认后方可导入。 4.SGS报告有效期为一年。 5.依实际承认书所附件内容在查核表中勾选：“有”为已提供， “无”根据客户要求提供。 DONGGUAN CITY SLEing INTEL-TECH CO.,LTD 3.0 ⭥ᙗ⍻䈅ᣕ੺ Test Reports Electrical Properties Frequency 860~930MHz Impedance 50 Ohm Nominal V.S.W.R İ3.0 Return Loss -6 dB Max RadiationOmni-directional Gain (Peak) 4.96 dBi PolarizationLinear, Vertical Admitted Power2 W Connector RP-SMA Physical Properties Antenna Material TPE/PC/POM Antenna Color . Black Cable Type Operating Temp -40 ~ +85 ̊C Storage Temp -40 ~ +85 ̊C RG-178 T ⍪㔘㳳孽! 63DUDPHWHU7HVW $JLOHQW(&1HWZRUN$QDO\]HU 5)$QWHQQD 12 测试设备 Test Setup NFC-500S 3D Chamber Coordinate System Definition Configuration of 3D Chamber 方向图 Patten 1.3 2D Radiation patterns test results(Passive Antenna) XZ Plane YZ PlaneYZ Plane 1.5 3D Radiation patterns test results(Passive Antenna) 3D 方向图 Patten 1.3 2D Radiation patterns test results(Passive Antenna) XZ Plane YZ PlaneYZ Plane 1.5 3D Radiation patterns test results(Passive Antenna) 3D 测试效率 Test Efficency

Test Report

NOTE: This document is issued by Shenzhen Morlab Communications Technology Co., Ltd., the test report shall not be reproduced except in full without prior written permission of the company. The test results apply only to the particular sample(s) tested and to the specific tests carried out which is available on request for validation and information confirmed at our website. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 1 of 68 REPORT No.：SZ25070176W01 TEST REPORT APPLICANT : Zhejiang Lierda Internet of Things Technology Co., Ltd. PRODUCT NAME : Lierda Feng Series WB28 LoRa Mesh Module MODEL NAME : L-LRNWB28-84MN4 BRAND NAME :Lierda FCC ID :2AOFDL-LRNWB28 STANDARD(S) :47 CFR Part 15 Subpart C RECEIPT DATE : 2025-07-17 TEST DATE :2025-08-06 to 2025-09-08 ISSUE DATE :2025-11-20 Edited by: Peng Mi (Rapporteur) Approved by: Shen Junsheng (Supervisor) MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 2 of 68 REPORT No.：SZ25070176W01 DIRECTORY 1. Summary of Test Result ·············································································· 4 1.1. Testing Applied Standards ········································································ 5 1.2. Test Equipment List ················································································· 6 1.3. Measurement Uncertainty ········································································· 8 1.4. Testing Laboratory ··················································································· 8 2. General Description ··················································································· 9 2.1. Information of Applicant and Manufacturer ················································· 9 2.2. Information of EUT ··················································································· 9 2.3. Channel List of EUT ··············································································· 10 2.4. Test Configuration of EUT ······································································· 11 2.5. Test Conditions ····················································································· 11 2.6. Test Setup Layout Diagram ····································································· 11 3. Test Results ···························································································· 14 3.1. Antenna Requirement ············································································ 14 3.2. Hopping Mechanism ·············································································· 15 3.3. Number of Hopping Frequency ································································ 15 3.4. Duty Cycle of Test Signal ········································································ 17 3.5. Maximum Peak Conducted Output Power ················································· 18 3.6. Maximum Average Conducted Output Power ············································ 19 3.7. 20 dB Bandwidth ··················································································· 20 3.8. Carried Frequency Separation ································································· 21 3.9. Time of Occupancy (Dwell time) ······························································ 22 3.10. Conducted Spurious Emissions and Band Edge ········································ 23 3.11. Conducted Emission ·············································································· 24 3.12. Radiated Emission ················································································· 25 Annex A Test Data and Result ······································································· 27 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 3 of 68 REPORT No.：SZ25070176W01 Change History Version Date Reason for change 1.0 2025-11-20 First edition MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 4 of 68 REPORT No.：SZ25070176W01 1. Summary of Test Result No. Section Description Test Date Test Engineer Result Remark 1 15.203 Antenna Requirement N/A N/A PASS / 2 15.247(a) 15.247(h) Hopping Mechanism N/A N/A PASS / 3 15.247(a) Number of Hopping Frequency Aug. 05, 2025 Lin Haoyang PASS / 4 ANSI C63.10 Duty Cycle Aug. 06, 2025 Lin Haoyang PASS / 5 15.247(b) Maximum Peak Conducted Output Power Aug. 06, 2025 Lin Haoyang PASS / 6 15.247(b) Maximum Average Conducted Output Power Aug. 06, 2025 Lin Haoyang PASS / 7 15.247(a) 20dB Bandwidth Aug. 06, 2025 Lin Haoyang PASS / 8 15.247(a) Carrier Frequency Separation Aug. 05, 2025 Lin Haoyang PASS / 9 15.247(a) Time of Occupancy (Dwell time) Sep. 08, 2025 Lin Haoyang PASS / 10 15.247(d) Conducted Spurious Emission Aug. 06, 2025 Lin Haoyang PASS / 11 15.207 Conducted Emission N/A N/A N/A Note1 / 12 15.209, 15.247(d) Radiated Emission Aug. 19 to 28, 2025 Zhong Xiangyun PASS / Note 1: Measurements to demonstrate compliance with the conducted limits are not required for devices which only employ battery power for operation and which do not operate from the AC power lines or contain provisions for operation while connec…

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Contact Information

Applicant

LvJing Qiu(Certified Engineer)

[email protected]Fax: 86-571-89908398

Test Firm

Shenzhen Morlab Communications Technology Co. Ltd.Mr. Su Feng

[email protected]

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	902.4 MHz - 926.025 MHz	135.83 mW

Modular Type

Single Modular Approval

Confidentiality

Long Term

Grant Notes

Output power is maximum peak conducted. <br> Modular Approval for mobile RF Exposure conditions, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Approval is limited to OEM installation only. OEM integrators must be provided with antenna installation instructions. OEM integrators and end-users must be provided with transmitter operating conditions for satisfying RF exposure compliance. This grant is valid only when the device is sold to OEM integrators and the OEM integrators are instructed to ensure that the end user has no manual instructions to remove or install the device. Only the antenna(s) listed in this filing can be used with this device. Use of additional antenna(s) are subject to the requirements of 15.204(c)(4). The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369.

Documents & Files

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Attestation Statements

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Cover Letter(s)

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ID Label/Location Info

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RF Exposure Info

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Cover Letter(s)

Zhejiang Lierda Internet of Things Technology Co., Ltd. Date:2025-09-25 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: Request of Confidentiality for FCC ID: 2AOFDL-LRNWB28 To Whom it may concern: Pursuant to sections 0.457 and 0.459 of Commission’s Rules(CFR 47), and Section 552(b)(4) of the Freedom of Information Act, Zhejiang Lierda Internet of Things Technology Co., Ltd. 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 DA04-1705. This provision will give Zhejiang Lierda Internet of Things Technology Co., Ltd. temporary confidentiality of commercially sensitive information prior to product release. The requested Permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT AND SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Operational Description 3 Schematics 4 BOM SHORT-TERM 5 External Photos 6 Internal Photos 7 Test-Setup Photos 8 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Signatory: Name: LvJing Qiu Company name: Zhejiang Lierda Internet of Things Technology Co., Ltd. Tel: 86-18067988373 Email: [email protected]

Cover Letter(s)

RF Exposure Info

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Test Report

NOTE: This document is issued by Shenzhen Morlab Communications Technology Co., Ltd., the test report shall not be reproduced except in full without prior written permission of the company. The test results apply only to the particular sample(s) tested and to the specific tests carried out which is available on request for validation and information confirmed at our website. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 1 of 68 REPORT No.：SZ25070176W01 TEST REPORT APPLICANT : Zhejiang Lierda Internet of Things Technology Co., Ltd. PRODUCT NAME : Lierda Feng Series WB28 LoRa Mesh Module MODEL NAME : L-LRNWB28-84MN4 BRAND NAME :Lierda FCC ID :2AOFDL-LRNWB28 STANDARD(S) :47 CFR Part 15 Subpart C RECEIPT DATE : 2025-07-17 TEST DATE :2025-08-06 to 2025-09-08 ISSUE DATE :2025-11-20 Edited by: Peng Mi (Rapporteur) Approved by: Shen Junsheng (Supervisor) MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 2 of 68 REPORT No.：SZ25070176W01 DIRECTORY 1. Summary of Test Result ·············································································· 4 1.1. Testing Applied Standards ········································································ 5 1.2. Test Equipment List ················································································· 6 1.3. Measurement Uncertainty ········································································· 8 1.4. Testing Laboratory ··················································································· 8 2. General Description ··················································································· 9 2.1. Information of Applicant and Manufacturer ················································· 9 2.2. Information of EUT ··················································································· 9 2.3. Channel List of EUT ··············································································· 10 2.4. Test Configuration of EUT ······································································· 11 2.5. Test Conditions ····················································································· 11 2.6. Test Setup Layout Diagram ····································································· 11 3. Test Results ···························································································· 14 3.1. Antenna Requirement ············································································ 14 3.2. Hopping Mechanism ·············································································· 15 3.3. Number of Hopping Frequency ································································ 15 3.4. Duty Cycle of Test Signal ········································································ 17 3.5. Maximum Peak Conducted Output Power ················································· 18 3.6. Maximum Average Conducted Output Power ············································ 19 3.7. 20 dB Bandwidth ··················································································· 20 3.8. Carried Frequency Separation ································································· 21 3.9. Time of Occupancy (Dwell time) ······························································ 22 3.10. Conducted Spurious Emissions and Band Edge ········································ 23 3.11. Conducted Emission ·············································································· 24 3.12. Radiated Emission ················································································· 25 Annex A Test Data and Result ······································································· 27 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 3 of 68 REPORT No.：SZ25070176W01 Change History Version Date Reason for change 1.0 2025-11-20 First edition MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 4 of 68 REPORT No.：SZ25070176W01 1. Summary of Test Result No. Section Description Test Date Test Engineer Result Remark 1 15.203 Antenna Requirement N/A N/A PASS / 2 15.247(a) 15.247(h) Hopping Mechanism N/A N/A PASS / 3 15.247(a) Number of Hopping Frequency Aug. 05, 2025 Lin Haoyang PASS / 4 ANSI C63.10 Duty Cycle Aug. 06, 2025 Lin Haoyang PASS / 5 15.247(b) Maximum Peak Conducted Output Power Aug. 06, 2025 Lin Haoyang PASS / 6 15.247(b) Maximum Average Conducted Output Power Aug. 06, 2025 Lin Haoyang PASS / 7 15.247(a) 20dB Bandwidth Aug. 06, 2025 Lin Haoyang PASS / 8 15.247(a) Carrier Frequency Separation Aug. 05, 2025 Lin Haoyang PASS / 9 15.247(a) Time of Occupancy (Dwell time) Sep. 08, 2025 Lin Haoyang PASS / 10 15.247(d) Conducted Spurious Emission Aug. 06, 2025 Lin Haoyang PASS / 11 15.207 Conducted Emission N/A N/A N/A Note1 / 12 15.209, 15.247(d) Radiated Emission Aug. 19 to 28, 2025 Zhong Xiangyun PASS / Note 1: Measurements to demonstrate compliance with the conducted limits are not required for devices which only employ battery power for operation and which do not operate from the AC power lines or contain provisions for operation while connec…

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Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	902.4 MHz - 926.025 MHz	135.83 mW

Modular Type

Single Modular Approval

Confidentiality

Long Term

Grant Notes