2AWKC-718002471T1R doppler radar

1T1R doppler radar USER MANUAL RKB1146 1 / 6 DESCRIPTION RKB1146 is a 1T1R doppler radar operating in 24 GHz ISM band. The VO pin outputs either a 0V or 3.3 V voltage when a nearby approaching target is presented or not. RKB1146 is suitable for both IoT and industrial applications. FEATURE  Operating frequency range: 24.09 ~ 24.15 GHz  TX EIRP: 92.2dBuV/m  Phase noise: -96 dBc/Hz @ 1 MHz offset  RX noise figure: 10 dB DSB  Current at 5 V power supply: 60 mA  On-board MCU included  Dimension: 20 mm x 50 mm APPLICATION  Industrial application  IoT application Datasheet RKB1146 2 / 6 SPECIFICATION (at 25°C room temperature) Parameter Min Typ. Max Units Note Power Supply Voltage 3.5 5 5.5 V Current 60 mA TX Frequency range 24 24.25 GHz EIRP 8 dBm @24.125 GHz Phase noise -96 dBc/Hz @1MHz offset RX Noise figure 10 dB DSB Antenna TX gain 4 dBi TX 3 dB antenna pattern ±57 deg Azimuth ±24 deg Elevation RX gain 4 dBi RX 3 dB antenna pattern ±57 deg Azimuth ±24 deg Elevation Start-up Time Start-up time after power on 1 s Detection Distance Detection distance Without radome: 0.1-5m adjustable Accuracy Rate Accuracy rate 99.9% PIN MAP Connector: BM03B-PASS-TFT(LF)(SN) from JST. Pin No. Mnemonic Description 1 GND Ground 2 VO Detection output 3 VCC DC supply DIMENSION （mm，Thickness:1.6±0.15mm） Datasheet RKB1146 3 / 6 COMMUNOCATION PROTOCOL UART PROTOCOL  Baud Rate: 115200  Data Bits: 8  Stop Bits: 1  Parity: none UART COMMAND  set TH=***: to set the detection sensitivity, the default value is 375. The larger the value of the sensitivity, the shorter the detection distance is.  set SN=***: to set the anti-vibration factor, the default value is 5. The larger the value of this factor, the better the anti-vibration effect is, and the longer time is required for a motion to be detected, in other words, a fast motion may be neglected.  set DL=***: to set the duration time after an approaching target is detected, the default value is 1000 which represents 1 second in time. ATTENTION Water or metallic objects on top of the radar will cause malfunction. REGULATORY INFORMATION FCC Statement 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device. FCC Radiation Exposure Statement 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 and operated with a minimum distance of 20 cm between the radiator and user body. If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID:2AWKC-71800 Or Contains FCC ID: 2AWKC-71800” Datasheet RKB1146 4 / 6 When the module is installed inside another device, the user manual of the host must contain below warning statements; 1. 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. (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. Any company of the host device which install this modular with limit modular approval should perform the test of radiated emissionand spurious emission according to FCC part 15C:15.245, 15.247 and 15.249 requirement, Only if the test result comply with FCC part 15C : 15.245, 15.247 and 15.249 requirement, then the host can be sold legally. Installation requirements: FCC ID:2AWKC-71800247 Limited module is only used in the interior of the wine cabinet and refrigerator, and must comply with FCC regulations. It cannot be used for other mobile products. Datasheet RKB1146 5 / 6 IC Warning This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. If the ISED number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module IC:26186-71800247 Or Contains IC:26186-71800247” When the module is installed inside another device, the user manual of the host must contain below warning statements; 1. This device complies with RSS Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the…

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2020-06-16 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, Name: Chai Guanwei Title: Certification Engineer Company: Qingdao Haier Special Freezer Co Ltd

2020-06-16 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen STS Test Services Co., Ltd., 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong,China (Name of Agent company name and address) 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 Qingdao Haier Special Freezer Co Ltd, HAIER GARDEN, QIANWANGANG RD ECONOMIC DEVELOPMENT ZONE QINGDAO SHANDONG 266510 CHINA (Applicant Name and address) Sincerely, Name: Chai Guanwei Title: Certification Engineer Company: Qingdao Haier Special Freezer Co Ltd

Limit Modular Approval Declaration letter 2020-06-17 We, Qingdao Haier Special Freezer Co Ltd apply Limit Modular Approval for Product Name: 1T1R doppler radar Model: RKB1146 FCC ID: 2AWKC-71800247 According to 996369 D01 Module Equip Auth Guide v01r04 and 15.212 requirement: 1) 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; Answer: No, Not Shielded for both side. 2) The module must have buffered modulation/data inputs to ensure that the device willcomply with Part 15 requirements with any type of input signal; Answer:Yes,All inputs to the modules are buffered through logic or microprocessor inputs. 3)The modular transmitter must have its own power supply regulation. Answer:Yes,A low drop out regulator is used for modular power supply regulation. 4) The module must contain a permanently attached antenna, or contain a unique antennaconnector, and be marketed and operated only with specific antenna(s), per Sections15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b); Answer:Yes, Device is equipped with PCB antenna. (5) The module must demonstrate compliance in a stand-alone configuration; Answer:No, the limit module is installed in the refrigerator for testing. (6) The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements); Answer :Yes, The modular has a permanent fixed label, and below statement was listed in the User Manual ;The host device must be labeled to display the FCC ID of the module “Contains 2AWKC-71800247” (7) The module must comply with all specific rules applicable to the transmitter includingall the conditions provided in the integration instructions by the grantee; Answer :Yes, The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual . (8) The module must comply with RF exposure requirements Answer :Yes, Transmitter meets MPE calculation of 47 CFR 1.1307 and KDB 447498 . Refer to MPE Reports and Refer to modular installation manual Please contact me if you have any further questions. Thanks for your attention. Best Regards, Sincerely, Name: Chai Guanwei Title: Certification Engineer Company: Qingdao Haier Special Freezer Co Ltd

2020-06-16 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID:2AWKC-71800247 Product Name: 1T1R doppler radar Model name: RKB1146 Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  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. Sincerely, Name: Chai Guanwei Title: Certification Engineer Company: Qingdao Haier Special Freezer Co Ltd

Report No.: 2006RSU010-UE External Photograph (1) EUT Photo (2) EUT Photo

FCC & IC Label PMN: 1T1R doppler radar HVIN: RKB1146 FCC ID: 2AWKC-71800247 IC: 26186-71800247 5mm*12mm silk-screen

Report No.: 2006RSU010-UE Internal Photograph (1) EUT Photo (2) EUT Photo

MRT Technology (Suzhou) Co., Ltd Report No.: 2006RSU010-U1 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 06-16-2020 1 of 39 FCC ID: 2AWKC-71800247 IC: 26186-71800247 Applicant: Qingdao Haier Special Freezer Co Ltd Application Type: Certification Product: 1T1R doppler radar Model No.: RKB1146 Brand Name: Haier FCC Classification: Part 15 Field Disturbance Sensor (FDS) FCC Rule Part(s): FCC Part 15.245 ISED Rule(s): RSS-210 Issue 10, RSS-Gen Issue 5 Test Procedure(s): ANSI C63.10-2013 Test Date: June 04 ~ 10, 2020 MEASUREMENT REPORT FCC Part 15.245 / RSS-210 Issue 10 Reviewed By : (Sunny Sun) Approved By : ( Robin Wu ) The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2006RSU010-U1 2 of 39 Revision History Report No. Version Description Issue Date Note 2006RSU010-U1 Rev. 01 Initial Report 06-16-2020 Valid Report No.: 2006RSU010-U1 3 of 39 CONTENTS Description Page 1. INTRODUCTION ..................................................................................................................... 6 1.1. Scope ........................................................................................................................... 6 1.2. MRT Test Location ....................................................................................................... 6 2. PRODUCT INFORMATION ..................................................................................................... 7 2.1. Equipment Description .................................................................................................. 7 2.2. Test Mode .................................................................................................................... 7 2.3. Test Configuration ........................................................................................................ 7 2.4. EMI Suppression Device(s)/Modifications ..................................................................... 7 2.5. Labeling Requirements ................................................................................................. 8 3. DESCRIPTION of TEST .......................................................................................................... 9 3.1. Evaluation Procedure ................................................................................................... 9 3.2. AC Line Conducted Emissions ..................................................................................... 9 3.3. Radiated Emissions .................................................................................................... 10 4. ANTENNA REQUIREMENTS ................................................................................................. 11 5. TEST EQUIPMENT CALIBRATION DATE ............................................................................ 12 6. MEASUREMENT UNCERTAINTY ......................................................................................... 14 7. TEST RESULT ...................................................................................................................... 15 7.1. Summary .................................................................................................................... 15 7.2. Occupied Bandwidth Measurement ............................................................................ 16 7.2.1. Test Limit ................................................................................................................ 16 7.2.2. Test Procedure used ............................................................................................... 16 7.2.3. Test Setting ............................................................................................................. 16 7.2.4. Test Setup ............................................................................................................... 16 7.2.5. Test Result .............................................................................................................. 17 7.3. Radiated Emission ...................................................................................................... 18 7.3.1. Test Limit ................................................................................................................ 18 7.3.2. Test Procedure used ............................................................................................... 20 7.3.3. Test Procedure........................................................................................................ 20 7.3.4. Test Setup ............................................................................................................... 21 7.3.5. Test Results ............................................................................................................ 23 7.4. Radiated Restricted Band Edge Measurement ........................................................... 25 7.4.1. Test Limit ................................................................................................................ 25 Report No.: 2006RSU010-U1 4 of 39 7.4.2. Test Procedure used ............................................................................................... 28 7.4.3. Test Procedure........................................................................................................ 28 7.4.4. Test Setup ............................................................................................................... 29 7.4.5. Test Result .............................................................................................................. 30 7.5…

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Report No.: 2006RSU010-UT Test Setup Photograph Description: Radiated Emission Test Setup for Below 1GHz Description: Radiated Emission Test Setup for 1G ~ 18GHz Report No.: 2006RSU010-UT Description: Radiated Emission Test Setup for Below 50GHz Description: Radiated Emission Test Setup for 50GHz ~ 75GHz Report No.: 2006RSU010-UT Description: Radiated Emission Test Setup for 75GHz ~ 100GHz