2AG87ACM-DB-3-R2Industrial WiFi Transceiver

Compliance list INTEGRATION INSTRUCTIONS for 996369 D03 OEM the and 996369 D03 OEM by Sections 2.2 through 2.10. RequirementYesN/A Comment 2.2 List of applicable FCC rules List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional‐radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host manufacturers that further testing is required. 3 YESRefer to instruction FCC standards: FCC CFR Title 47 Part 15 Subpart E Section 15.407: 2016 and FCC CFR Title 47 Part 15 Subpart C Section 15.247 2.3 Summarize the specific operational use conditions Describe use conditions that are applicable to the modular transmitter, including for example any limits on antennas, etc. For example, if point‐to‐point antennas are used that require reductioninpowerorcompensationforcable loss, then this information must be in the instructions. If the use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturer’s instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band and minimum gain, specifically for master devices in 5 GHz DFS bands. YESRefer to instruction The module is limited to the following antenna: Antenna Type: External Antenna Antenna Gain: ANT0: 3dBi ANT1: 3dBi ANT2: 3dBi 2.4 Limited module procedures If a modular transmitter is approved as a “limited module,” then the module manufacturer is responsible for approving the host environment that the limited module is used with. The manufacturer of a limited module must describe, both in the filing and in the installation instructions, the alternative means that the limited module manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting conditions. A limited module manufacturer has the flexibility to define its alternative method to address the conditions that limit the initial approval, such as: shielding, minimum signaling amplitude, buffered modulation/data No inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured. For additional hosts other than the specific host originally granted with a limited module, a Class II permissive change is required on the module grant to register the additional host as a specific host also approved with the module. 2.5 Trace antenna designs For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ – Modules for Micro‐Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements. 4 a) Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna); b) Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered); c) The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout; d) Appropriate parts by manufacturer and specifications; e) Test procedures for design verification; and f) Production test procedures for NO ensuring compliance. The module grantee shall provide a notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. 2.6 RF exposure considerations It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person’s body); and (2) additional text needed for the host product manufacturer to provide to end users in their end‐product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application). YESRefer to instruction The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device. This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co‐located or operating in conjunction with any other antenna or transmitter. This modular must be installed andoperatedwithaminimumdistanceof 20 cm between the radiator and user body. 2.7 Antennas A list of antennas included in the application for certification must be provided in the instructions. For modul…

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July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 1 User Manual Doodle Labs ACM-DB-3-R2 Industrial Wi-Fi Transceiver Dual Band – 5.x and 2.4 GHz, 3x3 MIMO, IEEE802.11ac transceiver Product Family Overview Doodle Labs’ portfolio of Industrial Wi-Fi transceivers offer the industry’s best-in-class performance. These transceivers have high transmit power for long-range communication and has been designed to withstand operation in extremely challenging environments. In addition, these transceivers feature high interference immunity that allows successful operation in today’s congested Wi-Fi environments. The transceivers are FCC, CE, and IC certified and have been deployed in numerous demanding applications. Figure 1. Top and bottom views of the ACM-DB-3-R2 transceiver with MMCX connectors. Target Applications The Doodle Labs Industrial Wi-Fi transceivers meet the demanding needs of customers across a broad range of industries. Examples include: •Unmanned Vehicles – Drones •Unmanned Robots •Industrial IoT applications •Rugged/Military requirements with extended temperature and vibration resiliency •Mesh Networking deployments •Passenger Wi-Fi access aboard airplanes and trains •Streaming HD Video Surveillance Cameras •Wireless Infrastructure in harsh operating conditions of the Oil/Gas fields and Mines July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 2 Datasheet Features Best-in-class features include: •Modular FCC, CE and IC certifications to expedite system integration •Integrated LNA for best-in-class Rx sensitivity to pick up low energy signals from mobile phones •Up to 30 dBm of RF power to get the largest possible area coverage •Extended temperature range from -40C to +85C. •Electrical Stress protection on Antenna ports for outdoor operation •Long product life cycle to meet the needs of Industrial IoT applications •High interference immunity for Wi-Fi congested environment •Hardware “RF Kill” feature to meet the FAA requirement for airborne applications •High band isolation to support concurrent dual band operation for multi-band routers Figure 2. Interference immunity performance compared to leading competitors. July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 3 Datasheet ACM-DB-3 Specifications Table 1. Technical Specifications. Ordering Code ACM-DB-3-R2 with MMCX connectors ACM-DB-3-R2 with U.FL connectors Radio Configuration 3x3 MIMO, Dual Band Special Features –Extended lifespan with planned availability for long time –Extreme Reliability, IPC Class 2 standard with Class 3 options –Compliant to MIL-STD-202G, Qualified for high shock/vibration environments Design-In Documentation https://www.doodlelabs.com/technologies/technical-library/ MAC Chipset Qualcomm Atheros: QCA9890-BR4B with Extended Temperature range Software Support Open Source Linux Drivers ath10k for 11ac models OpenWRT (Wireless Router/Linux OS) Center Frequency Range 5.180 GHz ~ 5.825 GHz 2.412 GHz ~ 2.484 GHz This varies by the regulatory domain Channel Bandwidth* 20, 40 and 80 MHz channels Radio Modulation/Data Rates (Dynamic Link Adaptation) 802.11ac: MCS0-9 (5.x GHz) 802.11a: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps (5.x GHz) 802.11n: MCS0-23 (5.x and 2.4 GHz) 802.11b/g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48 and 54 Mbps (2.4 GHz) 802.11ac Wave 1 Capabilities •802.11 dynamic frequency selection (DFS) as an AP and Client •Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx), Maximal ratio combining (MRC), Cyclic shift diversity (CSD), Frame aggregation, block ACK, 802.11e compatible bursting, Spatial multiplexing, cyclic-delay diversity (CDD), low-density parity check (LDPC), Space Time Block Code (STBC) •Phy data rates up to 1.3 Gbps (80 MHz channel) July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 4 Datasheet 802.11n version 2.0 Capabilities •802.11 dynamic frequency selection (DFS) as an AP and Client •Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx), Maximal ratio combining (MRC), Cyclic shift diversity (CSD), Frame aggregation, block ACK, 802.11e compatible bursting, Spatial multiplexing, cyclic-delay diversity (CDD), low-density parity check (LDPC), Space Time Block Code (STBC) •Phy data rates up to 450 Mbps (40 MHz channel) Operating Modes AP, Client, and Adhoc modes for Access Point, PtP, PtmP, and Mesh networks MAC Protocol TDD with Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Wireless Error Correction FEC, ARQ Wireless Data Security 128 bit AES, WEP, TKIP and WAPI hardware encryption. Support for IEEE 802.11d, e, h, i, k, r, v, w and time stamp standards FIPS Certification •Small packet size (96 bytes) in AES encryption at full packet rate. •FIPS 140-2, Level 2 (Temper Evidence Shield), Loop back mode to facilitate FIPS AES certification. July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 5 Datasheet Table 2. Tx and Rx performance at 5 GHz. Tx/Rx Specification Radio Modulation Coding Rate Tx Power (±2dBm) 2 Rx Sensitivity (Typ) 5 GHz (20 MHz Channel) – 11ac models 802.11a, STBC BPSK 1/2 27 -96 802.11a 64 QAM 3/4 22 -81 802.11ac, 802.11n BPSK 1/2 27 -96 802.11ac, 802.11n 16 QAM 3/4 25 -84 802.11ac, 802.11n 64 QAM 5/6 22 -75 802.11ac 256 QAM 3/4 20 -72 5 GHz (40 MHz Channel) – 11ac models 802.11ac, 802.11n BPSK 1/2 27 -93 802.11ac, 802.11n 16 QAM 3/4 25 -81 802.11ac, 802.11n 64 QAM 5/6 22 -75 802.11ac 256 QAM 5/6 20 -68 5 GHz (80 MHz Channel) – 11ac models 802.11ac BPSK 1/2 26 -87 802.11ac 16 QAM 3/4 24 -78 802.11ac 64 QAM 5/6 21 -72 July 16, 2020 © 2020 Doodle Labs. All rights reserved. Page 6 Datasheet 802.11ac 256 QAM 5/6 19 -65 Table 3. Tx and Rx performance at 2.4 GHz. Tx/Rx Specification Radio Modulation Coding Rate Tx Power (±2dBm) 2 Rx Sensitivity (Typ) 2.4 GHz (20 MHz Channel) – 11ac models 802.11b Single Stream, STBC 1 Mbps CCK 29 -100 802.11g 64 QAM 3/4 24 -80 802.11n BPSK 1/2 29 -95 802.11n 16 QAM 3/4 27 -83 802.11n 64 QAM 5/6 24 -76 2.4 GHz (40 MHz Channel) – 11ac models 802.11n BPSK 1/2 29 -91 802.11n 16 QAM 3/4 27 -80 802.1…

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DoodleLabs(SG)PteLtd Date:2020-12-14 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Long Term Confidentiality FCC ID: 2AG87ACM-DB-3-R2 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure FCC SOFTWARE SECURITY DESCRIPTION It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Dr Aaron Do Title: Senior RF Engineer

Doodle Labs (SG) Pte Ltd 150 Kampong Ampat, KA Centre, Suite #05-03, Singapore 368324 Singapore IP 368324 Singapore Statement Product: Industrial WiFi Transceiver Model: ACM-DB-3-R2 Additional Model: ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2 Trademark: N/A We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2020/12/14 Name: Aaron Do Title: Sr. RF Engineer Telephone: +65 6253 0100 Email: [email protected]

Doodle Labs (SG) Pte Ltd Agent Authorization Company: Doodle Labs (SG) Pte Ltd Address: 150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324, Singapore Product Name: Industrial WiFi Transceiver Model Number(s): ACM-DB-3-R2, ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2 Product Description: Industrial WiFi Transceiver We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020-12-14 Name:Dr Aaron Do Title:Senior RF Engineer Company: Doodle Labs (SG) Pte Ltd

Doodle Labs (SG) Pte Ltd FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-12-14 Subject; Modular Transmitter Application Company name: Doodle Labs (SG) Pte Ltd FCC ID: 2AG87ACM-DB-3-R2 Dear Sir/Madam, This letter includes the FCC application r equirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID: 2AG87ACM-DB-3-R2 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The modular have RF own shielding The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. The modular transmitter have buffered modulation/data inputs The module must contain power supply regulation on the module. The modular transmitter have its own power supply regulation. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The modular has a External Antenna, which has a unique antenna connector. The module must demonstrate compliance in a stand-alone configuration. The module compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The FCC identification number can put on the modular with either a permanently affixed label The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The instructions will be provided and apply to a complete transmitter and comply with specific rule. The module must comply with RF exposure requirements The total power density of modular transmitter final configuration comply with FCC RF Exposure Doodle Labs (SG) Pte Ltd FCC Modular Approval Request Rev 3.0 Name: Dr Aaron Do Date: 2020-12-14 Title: Senior RF Engineer Signature of applicant

Page 1 of 4 Appendix C: Photographs of EUT Product: Industrial WiFi Transceiver Model: ACM-DB-3-R2 External Photos Antenna Page 2 of 4 Page 3 of 4 Page 4 of 4

Label Artwork and Location Model: 00301A4EC082 ACM-DB-3-R2 D2420 FCC ID: 2AG87ACM-DB-3-R2 IC: 21411-ACMDB3R2 00301A4EC082 ACM-DB-2-R2 D2420 FCC ID: 2AG87ACM-DB-3-R2 IC: 21411-ACMDB3R2 00301A4EC082 ACO-DB-3-R2D2420 FCC ID: 2AG87ACM-DB-3-R2 IC: 21411-ACMDB3R2 00301A4EC082 ACO-DB-2-R2 D2420 FCC ID: 2AG87ACM-DB-3-R2 IC: 21411-ACMDB3R2 Size: L*W= 2.5*1.3mm Location ACM-DB-3-R2, ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2

Page 1 of 3 Appendix C: Photographs of EUT Product: Industrial WiFi Transceiver Model: ACM-DB-3-R2 Internal Photos Page 2 of 3 Page 3 of 3

Maximum Permissible Exposure Applicable Standard According to §1.1307(b), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. Remark: 1) MIMO MPE: For 2.4G WIFI: The maximum output power for antenna 0 is 24.88dBm (307.61mW) at 2412MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 1 is 25.89dBm (388.15mW) at 2412MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 2 is 26.45dBm (441.57mW) at 2412MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) For Band 1: The maximum output power for antenna 0 is 19.55dBm (90.16mW) at 5190MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 1 is 19.52dBm (89.54mW) at 5200MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 2 is 18.88dBm (77.27mW) at 5240MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) For Band 2A: The maximum output power for antenna 0 is 18.95dBm (78.52mW) at 5260MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 1 is 18.88dBm (77.27mW) at 5260MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 2 is 19.23dBm (83.75mW) at 5260MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) For Band 2C: The maximum output power for antenna 0 is 19.84dBm (96.38mW) at 5720MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 1 is 19.74dBm (94.19mW) at 5600MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 2 is 20.12dBm (102.80mW) at 5720MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) For Band 3: The maximum output power for antenna 0 is 20.77dBm (119.40mW) at 5745MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 1 is 20.57dBm (114.02mW) at 5785MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) The maximum output power for antenna 2 is 20.16dBm (103.75mW) at 5795MHz, 3dBi antenna gain(with 2.00 numeric antenna gain.) 2) For mobile or fixed location transmitters, no SAR consideration applied. The minimum separation generally be used is at least 20cm, even if the calculation indicate that the MPE distance would be lesser. Substituting the MPE safe distance using d=20cm into above equation. Yields: S=0.000199*P*G MPE 0: Mode Power(mW) numeric antenna gain Power density (mW/cm2) 2.4G WIFI 307.61 2.00 0.122429 Band 1 90.16 2.00 0.035884 Band 2A 78.52 2.00 0.031251 Band 2C 96.38 2.00 0.038359 Band 3 119.40 2.00 0.047521 MPE 1: Mode Power(mW) numeric antenna gain Power density (mW/cm2) 2.4G WIFI 388.15 2.00 0.154484 Band 1 89.54 2.00 0.035637 Band 2A 77.27 2.00 0.030753 Band 2C 94.19 2.00 0.037488 Band 3 114.02 2.00 0.045380 MPE 2: Mode Power(mW) numeric antenna gain Power density (mW/cm2) 2.4G WIFI 441.57 2.00 0.175745 Band 1 77.27 2.00 0.030753 Band 2A 83.75 2.00 0.033333 Band 2C 102.80 2.00 0.040914 Band 3 103.75 2.00 0.041293 Total MPE: Maximum Emissions Level Mode MPE 0 MPE 1 MPE 2 Total MPE Limit (mW/cm2) Result 2.4G WIFI 0.122429 0.154484 0.175745 0.452658 1.0 PASS Band 1 0.035884 0.035637 0.030753 0.102274 Band 2A 0.031251 0.030753 0.033333 0.095337 Band 2C 0.038359 0.037488 0.040914 0.116761 Band 3 0.047521 0.045380 0.041293 0.134194

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AG87ACM-DB-3-R2 Product: Industrial WiFi Transceiver Model No.: ACM-DB-3-R2 Additional Model No.: ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2 Trade Mark: N/A Report No.: TCT200804E022 Issued Date: Dec. 01, 2020 Issued for: Doodle Labs (SG) Pte Ltd 150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324 Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT200804E022 Page 2 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ..................................................................................... 3 2. Test Result Summary .............................................................................. 4 3. EUT Description ....................................................................................... 5 4. General Information ................................................................................. 7 4.1. Test environment and mode ................................................................................. 7 4.2. Description of Support Units ................................................................................ 8 5. Facilities and Accreditations .................................................................. 9 5.1. Facilities ................................................................................................................. 9 5.2. Location ................................................................................................................. 9 5.3. Measurement Uncertainty ..................................................................................... 9 6. Test Results and Measurement Data ................................................... 10 6.1. Antenna requirement .......................................................................................... 10 6.2. Conducted Emission ........................................................................................... 11 6.3. Maximum Conducted Output Power .................................................................. 15 6.4. Emission Bandwidth ........................................................................................... 17 6.5. Power Spectral Density ....................................................................................... 18 6.6. Conducted Band Edge and Spurious Emission Measurement ....................... 20 6.7. Radiated Spurious Emission Measurement ...................................................... 22 Appendix A: Test Result of Conducted Test Appendix B: Photographs of Test Setup Appendix C: Photographs of EUT Report No.: TCT200804E022 Page 3 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: Industrial WiFi Transceiver Model No.: ACM-DB-3-R2 Additional Model No.: ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2 Trade Mark: N/A Applicant: Doodle Labs (SG) Pte Ltd Address: 150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324 Manufacturer: Doodle Labs (SG) Pte Ltd Address: 150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324 Date of Test: Aug. 05, 2020 – Nov. 30, 2020 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 FCC KDB 662911 D01 Multiple Transmitter Output v02r01 ANSI C63.10:2013 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Nov. 30, 2020 Brews Xu Reviewed By: Date: Dec. 01, 2020 Beryl Zhao Approved By: Date: Dec. 01, 2020 Tomsin Report No.: TCT200804E022 Page 4 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 PASS Conducted Peak Output Power §15.247 (b)(3) PASS 6dB Emission Bandwidth §15.247 (a)(2) PASS Power Spectral Density §15.247 (e) PASS Band Edge §15.247(d) PASS Spurious Emission §15.205/§15.209 PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT200804E022 Page 5 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: Industrial WiFi Transceiver Model No.: ACM-DB-3-R2 Additional Model No.: ACM-DB-2-R2, ACO-DB-3-R2, ACO-DB-2-R2 Trade Mark: N/A Operation Frequency: 2412MHz~2462MHz (802.11b/802.11g/802.11n(HT20)) 2422MHz~2452MHz (802.11n(HT40)) Channel Separation: 5MHz Number of Channel: 11 for 802.11b/802.11g/802.11n(HT20) 7 for 802.11n(HT40) Modulation Technology (IEEE 802.11b) : Direct Sequence Spread Spectrum (DSSS) Modulation Technology (IEEE 802.11g/802.11n) : Orthogonal Frequency Division Multiplexing(OFDM) Data speed (IEEE 802.11b): 1Mbps, 2Mbps, 5.5Mbps, 11Mbps Data speed (IEEE 802.11g): 6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, 54Mbps Data speed (IEEE 802.11n): Up to 300Mbps Antenna Type: External Antenna An…

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Report No.: TCT200804E022 Page 51 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT200804E022 Page 52 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Maximum conducted output power Test Result Test Mode Antenna Channel Result [dBm] Limit [dBm] Verdict 11B Ant0 2412 24.88 <=30 PASS Ant1 2412 25.89 <=30 PASS Ant2 2412 26.45 <=30 PASS Ant0 2437 24.81 <=30 PASS Ant1 2437 25.78 <=30 PASS Ant2 2437 26.44 <=30 PASS Ant0 2462 24.57 <=30 PASS Ant1 2462 25.45 <=30 PASS Ant2 2462 26.11 <=30 PASS 11G Ant0 2412 22.43 <=30 PASS Ant1 2412 22.75 <=30 PASS Ant2 2412 23.50 <=30 PASS Ant0 2437 22.42 <=30 PASS Ant1 2437 23.06 <=30 PASS Ant2 2437 23.59 <=30 PASS Ant0 2462 22.05 <=30 PASS Ant1 2462 22.87 <=30 PASS Ant2 2462 23.36 <=30 PASS 11N20SISO Ant0 2412 22.28 <=30 PASS Ant1 2412 22.70 <=30 PASS Ant2 2412 23.13 <=30 PASS Ant0 2437 22.30 <=30 PASS Ant1 2437 23.84 <=30 PASS Ant2 2437 23.24 <=30 PASS Ant0 2462 22.02 <=30 PASS Ant1 2462 22.78 <=30 PASS Ant2 2462 23.05 <=30 PASS 11N40SISO Ant0 2422 21.95 <=30 PASS Ant1 2422 22.55 <=30 PASS Ant2 2422 23.02 <=30 PASS Ant0 2437 21.79 <=30 PASS Ant1 2437 22.63 <=30 PASS Ant2 2437 22.95 <=30 PASS Ant0 2452 21.60 <=30 PASS Ant1 2452 22.64 <=30 PASS Ant2 2452 22.92 <=30 PASS Report No.: TCT200804E022 Page 53 of 134 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Maximum power spectral density Test Result Test Mode Antenna Channel Result [dBm/10kHz] Correction Factor Result [dBm/3kHz] Limit [dBm/3kHz] Verdict 11B Ant0 2412 8.77 -5.23 3.54 <=8 PASS Ant1 2412 9.26 -5.23 4.03 <=8 PASS Ant2 2412 8.82 -5.23 3.59 <=8 PASS Ant0 2437 9.13 -5.23 3.90 <=8 PASS Ant1 2437 8.02 -5.23 2.79 <=8 PASS Ant2 2437 8.4 -5.23 3.17 <=8 PASS Ant0 2462 8.36 -5.23 3.13 <=8 PASS Ant1 2462 9.36 -5.23 4.13 <=8 PASS Ant2 2462 8.09 -5.23 2.86 <=8 PASS 11G Ant0 2412 3.57 -5.23 -1.66 <=8 PASS Ant1 2412 3.98 -5.23 -1.25 <=8 PASS Ant2 2412 3.4 -5.23 -1.83 <=8 PASS Ant0 2437 3.06 -5.23 -2.17 <=8 PASS Ant1 2437 5.24 -5.23 0.01 <=8 PASS Ant2 2437 4.45 -5.23 -0.78 <=8 PASS Ant0 2462 3.65 -5.23 -1.58 <=8 PASS Ant1 2462 3.75 -5.23 -1.48 <=8 PASS Ant2 2462 4.68 -5.23 -0.55 <=8 PASS 11N20SISO Ant0 2412 2.9 -5.23 -2.33 <=6.23 PASS Ant1 2412 3.49 -5.23 -1.74 <=6.23 PASS Ant2 2412 3.88 -5.23 -1.35 <=6.23 PASS Ant0 2437 3.3 -5.23 -1.93 <=6.23 PASS Ant1 2437 4.58 -5.23 -0.65 <=6.23 PASS Ant2 2437 3.95 -5.23 …

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