2BAPS-YTX51822-S02Bluetooth wireless transceiver module(YTX51822-S02)

BLE4.0 data transparent Modle：YTX51822‐S02 1、 Product Description： The YTX51822‐S02 module is a data transparent transmission module that uses Nordic's BLE Bluetooth MCU integrated SOC chip, the YTX51822‐QAFF. It integrates the underlying low‐power Bluetooth 4.0/4.2 standard protocol and has a standard UART interface. The module also has an interrupt output prompt function, which outputs a high‐level signal when it receives data transmitted by paired Bluetooth devices to notify external devices. Additionally, the module is equipped with a hardware enable pin that can disable serial port data transmission when no data transfer is required, thereby reducing system power consumption. 2、 Product Features：  Low‐power BLE 4.0/4.2 Bluetooth single‐mode chip；  Integrated standard BLE 4.0/4.2 protocol stack；  Standard UART (TTL) interface that can be directly connected to an external MCU's serial port or serial peripheral；  Hardware‐selectable serial port baud rate of 9600 or 38400, with a default of 9600；  Interrupt output prompt function；  Hardware enable control；  Operating distance: 0‐20 meters, class II level；  Supply voltage: 3.3V；  Module comes with a PCB antenna；  Module size：18.5*9.1*2.0mm 3、 Main Applications：  Short‐distance automation data collection；  Industrial remote control and telemetry；  POS systems, Bluetooth keyboards, mice, game controllers；  Bluetooth dimming and lighting control systems；  Smart home control systems；  Anti‐lost devices；  Mobile phone accessories； 4、 Model Size： 5、 Pin Description： Pin number Name Function Description Pin number Name Function Description 1 VCC DC2.5V~3.6V 21 SWDIO RST SWD Data foot Reset pin (effective at low level) / 2 P0.30 Digital I/O 22 SWDCLK SWD Clock pin 3 P0.00 AREF0 Digital I/O /Analog input0 23 P0. 17 Digital I/O 4 P0.01 AIN2 Digital I/O / Analog input 2 24 P0. 18 Digital I/O 5 P0.02 AIN3 Digital I/O / Analog input 3 25 P0. 19 Digital I/O 6 P0.03 AIN4 Digital I/O / Analog input 4 26 P0.20 Digital I/O 7 P0.04 AIN5 Digital I/O / Analog input 5 27 GND Ground (0 V) 8 P0.05 AIN6 Digital I/O / Analog input 6 28 Antenna /(GND) 2.4G antenna /(Ground (0 V))* 9 P0.06 AIN7 AREF1 Digital I/O / Analog input 7 29 GND Ground (0 V) 10 P0.07 Digital I/O 30 GND Ground (0 V) 11 GND Ground (0 V) 31 GND Ground (0 V) 12 P0.08 Digital I/O 32 P0.21 Digital I/O 13 P0.09 Digital I/O 33 P0.22 Digital I/O 14 P0. 10 Digital I/O 34 P0.23 Digital I/O 15 P0. 11 Digital I/O 35 P0.24 Digital I/O 16 P0. 12 Digital I/O 36 P0.25 Digital I/O 17 P0. 13 Digital I/O 37 P0.26 AIN0 XL2 Digital I/O / Analog output / connect 32.768 kHz crystal 18 P0. 14 Digital I/O 38 P0.27 AIN1 XL1 Digital I/O / Analog input / connect 32.768 kHz crystalOr external 32.768 kHz reference clock 19 P0. 15 Digital I/O 39 RX RXpin 20 P0. 16 Digital I/O 40 TX TX pin FCC Regulatory notices M odification statement Shenzhen yitaixin elec tronic co.LTD has not approved any changes or modifications to this device by the user. Any changes or modifications could void the user’s authority to operate the equipment. Interference statement This device complies with Part 15 of the FCC Rules and Industry Canada licence-exempt RSS standard(s). 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. RF exposure This equipment complies with FCC radiation exposure limits set forth for an uncontrolled env ironment. The antenna should be installed and operated with minimum distance of 20cm between the radiator and your body. Antenna gain must be below 3 dBi. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The host end pr oduct must include a user manual that clearly defines operating requirements and conditions that must be observed to ensure compliance with current FCC RF exposure guidelines. For portable devices, in addition to above, a separate approval is required to satisfy the SAR requirements of FCC Part 2.1093. If the device is used for other equipment that separate approval is requi red for all other operating configurations, including portable configurations with respect to 2.1093 and different antenna c onfigurations. FCC Class B digital device notice This equipment has been tested and found to comply with the limits for a Class B di gital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Labelling Requirements for the Host device The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the FCC ID of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows: Model: Bluetooth wireless transceiver module(YTX51822-S02) Contains FCC ID：2BAPS-YTX51822-S02 The host OEM user manua…

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Shenzhen yitaixin electronic co.LTD 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Shenzhen yitaixin electronic co.LTD Address: 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Product Name: Bluetooth wireless transceiver module(YTX51822-S02) FCCID: 2BAPS-YTX51822-S02 Model(s): YTX51822-S02, YTX69HC, YTX76, YTX76PA, YTX96, YTX95T, YTX78, YTX78PA, YTX69, YTX300HS2, YTX119BA, YTX-TRLR-DS2, YTX-75S, YTX22B, YTX23BP, YTX51822-S01, YTX52832-S2, YT8266-S, YTX26, YTX66, YTX51822-S03-IPEX 2.911(d)(5)(i) Equipment Type We, [Shenzhen yitaixin electronic co.LTD] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Deng zhengyuan Date: Jun. 21, 2023 Signature: Title and Company name: juridical person/ Shenzhen yitaixin electronic co.LTD NOTE 1 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen yitaixin electronic co.LTD 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen yitaixin electronic co.LTD Address: 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Product Name: Bluetooth wireless transceiver module(YTX51822-S02) FCCID: 2BAPS-YTX51822-S02 Model(s): YTX51822-S02, YTX69HC, YTX76, YTX76PA, YTX96, YTX95T, YTX78, YTX78PA, YTX69, YTX300HS2, YTX119BA, YTX-TRLR-DS2, YTX-75S, YTX22B, YTX23BP, YTX51822-S01, YTX52832-S2, YT8266-S, YTX26, YTX66, YTX51822-S03-IPEX 2.911(d)(5)(ii) Applicant filing We, [Shenzhen yitaixin electronic co.LTD] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to §1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Deng zhengyuan Date: Jun. 21, 2023 Signature: Title and Company name: juridical person/ Shenzhen yitaixin electronic co.LTD NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen yitaixin electronic co.LTD U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: April 11, 2023 Signed by (Printed Name/Title): Kenneth Young/Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Shenzhen yitaixin electronic co.LTD Grantee Code: 2BAPS FCC ID: 2BAPS-YTX51822-S02 Contact Name: Tian XiangJu Street Address: 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shen- zhen City/Province/Zip: Email: [email protected] Applicant Signature: Date:2023/4/11 Signed by (Printed Name/Title): zhengyuanDeng

Shenzhen yitaixin electronic co.LTD Agent Authorization Company: Shenzhen yitaixin electronic co.LTD Address: 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Product Name: Bluetooth wireless transceiver module(YTX51822-S02) Model Number(s): YTX51822-S02, YTX69HC, YTX76, YTX76PA, YTX96, YTX95T, YTX78, YTX78PA, YTX69, YTX300HS2, YTX119BA, YTX-TRLR-DS2, YTX-75S, YTX22B, YTX23BP, YTX51822-S01, YTX52832-S2, YT8266-S, YTX26, YTX66, YTX51822-S03-IPEX Product Description: Bluetooth wireless transceiver module(YTX51822-S02) 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: Jun. 21, 2023 Name: Deng zhengyuan Title: juridical person Company: Shenzhen yitaixin electronic co.LTD

Shenzhen yitaixin electronic co.LTD FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Subject; Modular Transmitter Application Company name: Bluetooth wireless transceiver module(YTX51822-S02) FCC ID: 2BAPS-YTX51822-S02 Dear Sir/Madam, This letter includes the FCC application requirements 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: 2BAPS-YTX51822-S02 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 Explanation 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. Yes, the modular has own shielding cover. 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. Yes, The modular transmitter have buffered modulation/data inputs. The module must contain power supply regulation on the module. Yes, The modular transmitterhave 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). Yes, The modular transmitter comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna either be permanently attached. The module must demonstrate compliance in a stand-alone configuration. Yes, The module can be configured independently and meets the requirements The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). Yes, The FCC ID on the product: 2BAPS- YTX51822-S02 The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Yes, The module complies fully with the operating requirements of Part 15 section as demonstrated in the test report. The module must comply with RF exposure requirements Yes, The modular transmitter complies with this requirement, please refer to RF exposure report. Shenzhen yitaixin electronic co.LTD FCC Modular Approval Request Rev 3.0 Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules P6 2.3 Summarize the specific operational use conditions P6 2.4 Limited module procedures P6 2.5 Trace antenna designs P7 2.6 RF exposure considerations P7 2.7 Antennas P7 2.8 Label and compliance information P8 2.9 Information on test modes and additional testing requirements P8 2.10 Additional testing, Part 15 Subpart B disclaimer P8 Name: Deng zhengyuan Date: Jun. 26, 2023 Title: juridical person Signature of applicant:

Shenzhen yitaixin electronic co.LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jun. 21, 2023 Subject; Request for Confidentiality FCC ID: 2BAPS-YTX51822-S02 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 Software security requirement In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. 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: Deng zhengyuan Title: juridical person

Shenzhen yitaixin electronic co.LTD Model Difference Declaration To Whom It May Concern, We, Shenzhen yitaixin electronic co.LTD (Bluetooth wireless transceiver module(YTX51822- S02) ); Trade Mark: , Model Number: YTX51822-S02, YTX69HC, YTX76, YTX76PA, YTX96, YTX95T, YTX78, YTX78PA, YTX69, YTX300HS2, YTX119BA, YTX-TRLR-DS2, YTX-75S, YTX22B, YTX23BP, YTX51822-S01, YTX52832-S2, YT8266-S, YTX26, YTX66, YTX51822-S03-IPEX ; All model’s the function, software and electric circuit are the same, only with a product model named different. Test sample model: YTX51822-S02. Please contact me if you have any question. Signature: Date: Jun. 21, 2023 Name: Deng zhengyuan Title: juridical person

Annex A External Photos Model No.: YTX51822‐S02 Page 1 of 3 Model No.: YTX51822‐S02 Page 2 of 3 Model No.: YTX51822‐S02 Page 3 of 3

FCC ID LABEL: Ca: 2mm x 6mm Label Location FCC ID: 2BAPS-YTX51822-S02

Annex B Internal Photos Model No.: YTX51822‐S02 Page 1 of 2 Antenna Model No.: YTX51822‐S02 Page 2 of 2

RF Exposure evaluation FCC ID: 2BAPS-YTX51822-S02 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 §2.1091 RF exposure is calculated. KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. 2. Limit FCC: Systems operating under the provisions of FCC 47 CFR 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. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is ≤ 1.0. The MPE ratio of each antenna is determined at the minimum test separation distance required by the operating configurations and exposure conditions of the host device, according to the ratio of field strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not apply when MPE is estimated using simple calculations based on far-field plane-wave equivalent conditions. The antenna installation and operating requirements for the host device must meet the minimum test separation distances required by all antennas, in both standalone and simultaneous transmission operations, to satisfy compliance. Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method FCC： Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. Result Bluetooth LE( Antenna Gain: 0dBi): EIRP(dBm)= 99.44(dBuV/m)-95.3=4.14(dBm) Mode Output Power Output Power (Turn-up Procedure) Antenna Gain (Numeric) Power Density At 20 cm (mW/cm 2 ) Power Density Limit (mW/cm 2 ) Test Results (dBm) dBm mW 2480MHz 4.14 5 3.16 1.0000 0.000629 0.29 PASS 5. Conclusion This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

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Page 1 of 28 Report No.: HK2306152519-E FCC TEST REPORT Test report On Behalf of Shenzhen yitaixin electronic co.LTD For Bluetooth wireless transceiver module(YTX51822-S02) Model No.: YTX51822-S02, See page 6 for series models FCC ID: 2BAPS-YTX51822-S02 Prepared For : Shenzhen yitaixin electronic co.LTD 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Jun. 12, 2023 ~ Jun. 19, 2023 Date of Report: Jun. 19, 2023 Report Number: HK2306152519-E Page 2 of 28 Report No.: HK2306152519-E TEST RESULT CERTIFICATION Applicant’s name ................. : Shenzhen yitaixin electronic co.LTD Address ................................. : 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Manufacture's Name ............ : Shenzhen yitaixin electronic co.LTD Address ................................. : 402, 4th floor, building B3, 34 Changfa West Road, Bantian street, Longgang District, Shenzhen, China Product description Trade Mark: Product name ........................... : Bluetooth wireless transceiver module(YTX51822-S02) Model and/or type reference : YTX51822-S02, See page 6 for series models Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.249 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK 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. Date of Test ............................................ : Date (s) of performance of tests ............. : Jun. 12, 2023 ~ Jun. 19, 2023 Date of Issue ........................................... : Jun. 19, 2023 Test Result .............................................. : Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Page 3 of 28 Report No.: HK2306152519-E Table of Contents Page 1 . TEST SUMMARY 5 1.1 . Test Procedures and Results 5 1.2 . Information of the Test Laboratory 5 1.3 . Measurement Uncertainty 5 2 . GENERAL INFORMATION 6 2.1 . General Description of EUT 6 2.2 . Operation of EUT During Testing 7 2.3 . Description of Test Setup 8 2.4 . Measurement Instruments List 9 3 . CONDUCTED EMISSIONS TEST 10 3.1. Conducted Power Line Emission Limit 10 3.2. Test Setup 10 3.3. Test Procedure 10 3.4. Test Result 11 4. RADIATED EMISSION TEST 13 4.1. Radiation Limit 13 4.2. Test Setup 13 4.3. Test Procedure 14 4.4. Test Result 14 5. BAND EDGE 20 5.1. Limits 20 5.2. Test Procedure 20 5.3. Test Result 21 6. OCCUPIED BANDWIDTH MEASUREMENT 23 6.1. Test Setup 23 6.2. Test Procedure 23 6.3. Measurement Equipment Used 23 6.4. Test Result 23 7. ANTENNA REQUIREMENT 25 8. PHOTOGRAPH OF TEST 26 9. PHOTOS OF THE EUT 28 Page 4 of 28 Report No.: HK2306152519-E ** Modified History ** Revision Description Issued Data Remark Revision 1.0 Initial Test Report Release Jun. 19, 2023 Jason Zhou Page 5 of 28 Report No.: HK2306152519-E 1. TEST SUMMARY 1.1. Test Procedures and Results DESCRIPTION OF TEST SECTION NUMBERRESULT CONDUCTED EMISSIONS TEST 15.207 COMPLIANT RADIATED EMISSION TEST 15.249(a)/15.209 COMPLIANT BAND EDGE 15.249(d)/15.205 COMPLIANT OCCUPIED BANDWIDTH MEASUREMENT 15.215（c） COMPLIANT ANTENNA REQUIREMENT 15.203 COMPLIANT 1.2. Information of the Test Laboratory Shenzhen HUAK Testing Technology Co., Ltd. Add.: 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Testing Laboratory Authorization： A2LA Accreditation Code is 4781.01. FCC Designation Number is CN1229. Canada IC CAB identifier is CN0045. CNAS Registration Number is L9589. 1.3. Measurement Uncertainty Measurement Uncertainty Conducted Emission Expanded Uncertainty =2.71dB, k=2 Radiated emission expanded uncertainty(9kHz-30MHz) = 3.90dB, k=2 Radiated emission expanded uncertainty(30MHz-1000MHz)= 3.90dB, k=2 Radiated emission expanded uncertainty(Above 1GHz) = 4.28dB, k=2 Page 6 of 28 Report No.: HK2306152519-E 2. GENERAL INFORMATION 2.1. General Description of EUT Equipment: Bluetooth wireless transceiver module(YTX51822-S02) Model Name: YTX51822-S02 Series Model: YTX69HC, YTX76, YTX76PA, YTX96, YTX95T, YTX78, YTX78PA, YTX69, YTX300HS2, YTX119BA, YTX-TRLR-DS2, YTX-75S, YTX22B, YTX23BP, YTX51822-S01, YTX52832-S2, YT8266-S, YTX26, YTX66, YTX51822-S03-IPEX Model Difference: All model’s the function, software and electric circuit are the same, only with a product model named different. Test sample model: YTX51822-S02 FCC ID: 2BAPS-YTX51822-S02 Antenna Type: PCB Antenna Antenna Gain: 0dBi Operation frequency: 2402MHz~2480MHz Number of Channels: 40CH Modulation Type: GFSK Power Source: DC 3.3V Power Rating: DC 3.3V Page 7 of 28 Report No.: HK2306152519-E 2.1.1. Carrier Frequency of Channels Description of Channel: Channel Frequency (MHz) Channel Frequenc y (MHz) Channel Frequency (MHz) 0 2402 14 2430 28 2458 1 2404 15 2432 29 2460 2 2406 16 2434 30 2462 3 2408 17 2436 31 2464 4 2410 18 2438 32 2466 5 2412 19 2440 33 2468 6 2414 20 2442 34 2470 7 2416 21 2444 35 2472 8 2418 22 2446 36 2474 9 2420 23 2448 37 2476 10 2422 24 2450 38 2478 11 2424 25 2452 39 2480 12 2426 26 2454 13 2428 27 2456 2.2. Operation of EUT During Testing Operating Mode The mode is used: Transmitting mode Low Channel: 2402MHz Middle Channel: 2440MHz High Channel: 2480MHz Page 8 of 28 Report No.: HK2306152519-E 2.3. Description of Test Setup Operation of EUT during Radiation testing: AC Plug PC information Model: TP00067A Input: DC 20V, 2.25-30.25A…

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YTX51822-S02 Radiated Emissions Conducted Emission