2BBUG-T-6819B2.4GHz Transmitter

Introduction Manual 2.4GHz Transmitter T-6819B 1. Introduction Thank you for choosing 2.4G radio remote control digital products, if you are the first time to use this type of products, please read this statement carefully and strictly in accordance with the requirements of operation. You could refer to the manual if you meet any problems during the operation. Please well keep the manual after use because you might have to use it again next time. Once again, thanks for buying our products. 2. Satey Guides Don’t fly in night, bad weather such as rainy or thundering days. It will interfere the transmitter signal. Thereby it will create out of control and unexpected accident. Before you fly, please make sure the movement of server correspond with the direction of joysticks. If inconsistent, please adjust before fly. You need to turn the throttle channel(ch2) and inching switch to the lowest before you use. Then switch on the transmitter power, finally connect the receiver. The sequence to shutdown is that turn off the receiver power first, and then the transmitter power. If the above operations are reverse, it might lead to uncontrolled and cause Accident. 3. 2.4GHz system AFHDS (automatic frequency hopping digital system), is developed by FLYSKY for all the Radio Control model lovers and is patented by FLYSKY at home. The system is specially developed for all the Radio control models, that offers super active and passive anti-jamming capabilities, very low power consumption and high receiver sensitivity. With extreme rigorous testing by engineers and studying the markets for years, FLYSKY AFHDS is now considered to be the best systems available in the martet. Specifications: Frequency range: 2410-2470MHz RF power: less than 10dBm(10mW); Modulat ion type: GFSK; Antenna Type: Integral Antenna gain: 2.69dBi FCC STATEMENT 1.This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) T his device may not cause harmful interference. (2) T his device must accept any interference received, including interference that may cause undesired operation. 2.C hanges or modifications not expressly approved by th e par ty responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection 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. FCC RF Radiation Exposure Statement: 1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2. This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. 3. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen FLYUEACE Model Technology Co., LTD * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter June 29, 2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BBUG-T-6819B FRN: 0033942251 Per section 2.911(d)(7) of the FCC rules, (“ Shenzhen FLYUEACE Model Technology Co., LTD”) certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process: Company Name: Global Product Services & Consultation LLC Physical U.S. Company Address: 328 W Palm Ave, Monrovia. CA91016 Agent name: Chi S. Chan Agent Email Address: [email protected] FRN: 0033406703 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Designated Agent Signed: (Required, if different to Applicant): Signed: Signed: Printed name: JIANHUA.ZOU Printed name: Chi S. Chan Title: CEO Title: Technical Director Company Name: Shenzhen FLYUEACE Model Technology Co., LTD Company Name: Global Product Services & Consultation LLC Date: June 29, 2023 Date: 2023-06-29 SC3066512

Shenzhen FLYUEACE Model Technology Co., LTD Covered Equipment Certification Attestation Letter 6/29/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BBUG-T-6819B (Shenzhen FLYUEACE Model Technology Co., LTD) 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. (Shenzhen FLYUEACE Model Technology Co., LTD) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Signed: Printed name: JIANHUA.ZOU Title: CEO Company Name: Shenzhen FLYUEACE Model Technology Co., LTD Date: 6/29/2023

2023-06-29 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Shenzhen Huatongwei International Inspection Co., Ltd./ 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China / Hans Hu,. 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, as specified by Nemko Canada Inc, still resides with Shenzhen FLYUEACE Model Technology Co., LTD / Floor 3, Building 3, Acupoint Industrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen Agency agreement expiration date: 2024-06-29 By: JIANHUA.ZOU Signature Printed On behalf of : Shenzhen FLYUEACE Model Technology Co., LTD Telephone: 13715307254

2023-06-29 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BBUG-T-6819B Product Name: 2.4GHz Transmitter 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. By: JIANHUA.ZOU Signature Printed On behalf of : Shenzhen FLYUEACE Model Technology Co., LTD Telephone: 13715307254

Differences declaration To whom concern: Our company Shenzhen FLYUEACE Model Technology Co., LTD Here by declares: Multi-model differences are as follows: Main model: Listed model: T-6819B Schematic diagram 电路原理图 PCB layout PCB走线 Appearance 外观结构 Model name 型号命名 Other 其它 T-6819A,T-6819C, T-6819D,T-8196B, TX-9B,TX-8B, TX-10C,TX-10A, T-8166A,T-8198A, T-8619A,T-8192A, T-6973A    ∆  Note: 1. If it is a same, mark it as  如相同, 则标识为 2. If there is a difference, mark it as ∆; If there are differences other than model name differences, please describe them in detail 如有差异，则标注为∆; 除了型号命名差异外，如有其它差异则需要在下面详细描述 Model No.: Differences describe Main model no.: 建议优先使用图片比对方式体现差异 Series model no.: By: JIANHUA.ZOU Signature Printed Title: On behalf of : Shenzhen FLYUEACE Model Technology Co., LTD

External Photos

2.4GHz Transmitter Model No.: T-6819B FCC ID: 2BBUG-T-6819B Shenzhen FLYUEACE Model Technology Co., LTD Made in China

Internal Photos

FCC ID: 2BBUG-T-6819B RF Exposure Evaluation REQUIREMENT KDB447498 D01 General RF Exposure Guidance v06, Clause 4.3.1(a) [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 7.5 Where -f(GHz) is the RF channel transmit frequency in GHz -Power and distance are rounded to the nearest mW and mm before calculation -The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. TEST RESULT Passed Not Applicable Frequency range (MHz) H-field strength (dBuV/m) H-field strength (dBm) H-field strength (mW) Limit Result 2410-2470 98.82 3.62 2 7.5 Pass Note: 1) The maximum antenna gain is 1dBi 2) The exposure evaluation safety distance is 0mm. 3) (dBm)=E(dBuV/m)+20log(d)-104.77=E(dBuV/m)-95.2

Page: 1 of 29 TEST REPORT For 2.4GHz devices Report No. ...................................... : CHTEW23060013 Report Verification: Project No.................................： SHT2304047601EW FCC ID ............................................. : 2BBUG-T-6819B Applicant’s name ........................... : Shenzhen FLYUEACE Model Technology Co., LTD Address ............................................. : Floor 3, Building 3, Acupoint Industrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen Product Name ................................ : 2.4GHz Transmitter Trade Mark ....................................... : - Model No. ......................................... : T-6819B Listed Model(s) ................................. : T-6819A,T-6819C,T-6819D,T-8196B,TX-9B,TX-8B,TX-10C, TX-10A,T-8166A,T-8198A, T-8619A, T-8192A,T-6973A Standard ......................................... : FCC CFR Title 47 Part 15 Subpart C § 15.249 Date of receipt of test sample..........: Apr.26, 2023 Date of testing.............................: Apr.26, 2023-Jun.06, 2023 Date of issue...............................: Jun.07, 2023 Result .................. ........................: PASS Compiled by ( Position+Printed name+Signature): File administrator Fanghui Zhu Supervised by (Position+Printed name+Signature): Project Engineer Weiyang.Xiang Approved by (Position+Printed name+Signature): RF Manager Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection 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. The test report merely correspond to the test sample. Report No.: CHTEW23060013 Page: 2 of 29 Date of issue: 2023-06-07 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V05(2023-03) Contents 1. TEST S T AN D AR D S A N D R E P O R T V E R S I O N 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION 4 3. SUMMARY 5 3.1. Client Information 5 3.2. Product Description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 5 4. TEST CONFIGURATION 6 4.1. Test frequency list 6 4.2. Descriptions of Test mode 6 4.3. Test sample information 6 4.4. Support unit used in test configuration and system 7 4.5. Testing environmental condition 7 4.6. Statement of the measurement uncertainty 7 4.7. Equipment Used during the Test 8 5. TEST CONDITIONS AND RESULTS 9 5.1. Antenna Requirement 9 5.2. AC Conducted Emission 10 5.3. 20dB bandwidth 11 5.4. 99% Occupied Bandwidth 12 5.5. Duty Cycle 13 5.6. Radiated field strength of the fundamental signal 14 5.7. Radiated Band edge Emission 17 5.8. Radiated Spurious Emission 19 6. TEST SETUP PHOTOS 24 7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT 26 7.1. External Photos 26 7.2. Internal Photos 28 8. APPENDIX REPORT 29 Report No.: CHTEW23060013 Page: 3 of 29 Date of issue: 2023-06-07 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V05(2023-03) 1. TEST STAND ARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: ‒ FCC CFR Title 47 Part 15 Subpart C § 15.249: Operation within the bands 902-928 MHz, 2400-2483.5 MHz, 5725-5875 MHZ, and 24.0-24.25 GHz ‒ ANSI C63.10:2013: American National Standard for Testing Unlicensed Wireless Devices 1.2. Report version Revision No. Date of issue Description N/A 2023-06-07 Original Report No.: CHTEW23060013 Page: 4 of 29 Date of issue: 2023-06-07 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V05(2023-03) 2. TEST DESCRIPTION Report clause Test Items Standard Requirement Result Test Engineer 5.1 Antenna Requirement 15.203 PASS Xiaoqin Li 5.2 AC Conducted Emission 15.207 N/A N/A 5.3 20dB Bandwidth 15.215/15.249 PASS Xiaoqin Li 5.4 99% Occupied Bandwidth - PASS *1 Xiaoqin Li 5.5 Duty cycle - PASS *1 Xiaoqin Li 5.6 Radiated field strength of the fundamental signal 15.249(a) PASS Quanhai Deng 5.7 Radiated Band Edge Emission 15.249(a)15.205/15.209 PASS Yifan Wang 5.8 Radiated Spurious Emission 15.249(d)15.205/15.209 PASS Junman Wang Note: ‒ The measurement uncertainty is not included in the test result. ‒ *1: No requirement on standard, only report these test data. Report No.: CHTEW23060013 Page: 5 of 29 Date of issue: 2023-06-07 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V05(2023-03) 3. SUMMARY 3.1. Client Information Applicant: Shenzhen FLYUEACE Model Technology Co., LTD Address: Floor 3, Building 3, Acupoint Industrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen Manufacturer: Shenzhen FLYUEACE Model Technology Co., LTD Address: Floor 3, Building 3, Acupoint Industrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen 3.2. Product Description Main unit information: Product Name: 2.4GHz Transmitter Trade Mark: - Model No.: T-6819B Listed Model(s): T-6819A,T-6819C,T-6819D,T-8196B,TX-9B,TX-8B,TX-10C, TX-10A,T-8166A,T-8198A, T-8619A, T-8192A,T-6973A Power supply: 1.5V*4 AA Hardware version: V1.0 Software version: V1.0 3.3. Radio Specification Description Operation frequency: 2410-2470MHz Channel number: 16 Channel separation: 5MHz Modulation: GFSK Antenna type: Integral antenna Antenna gain: 2.69dBi 3.4. Testing Laboratory Information Laboratory Name Shenzhen Huatongwei International Inspection Co., Ltd. Laboratory Location 1/F, Bldg 3, Hongfa Hi-tech Indu…

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Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 1 of 6 APPENDIX REPORT Project No. SHT2304047601EW Model No. T-6819B Start test date 2023-06-01 Finish date 2023-06-06 Temperature 24.5°C Humidity 54% Test Engineer Xiaoqin Li Auditor Appendix clause Test item Result A 20 dB Bandwidth PASS B 99% Occupied Bandwidth PASS C Duty cycle PASS Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 2 of 6 Appendix A：20dB bandwidth Channel 20dB Bandwidth(kHz) Limit (kHz) Result CH L 7.47 -- Pass CH M 6.89 CH H 6.08 Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 3 of 6 CH L CH M CH H Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 4 of 6 Appendix B：99% Occupied Bandwidth Channel 99% Occupied Bandwidth(MHz) Limit (kHz) Result CH L 7.12 - Pass CH M 5.93 CH H 5.33 Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 5 of 6 CH L CH M CH H Project No.: SHT2304047601EW Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 6 of 6 Appendix C：Duty cycle Test Frequency （MHz） T on time for single burst (ms) T period (ms) Duty cycle 1/T on time (kHz) 2440 0.42 2.42 17.4% 2.38 --------End of Report--------

客 户 C ustomer 项目名称 Project Name 客 户 料 号 Customer NO. 规 格 specification 供 方 料 号 SupplierNO. AN2400-TA100EX-001 规格 书 编 号 Specification NO. 编 写人 W rite by 骆毅 版 本 REV. Ver.1 日 期 Date 2021/08/5 备注 N ote 客 户确认 C USTOMER APPROVED BY 批 准 A pproved by 审 核 C hecked by 制 表 P repared by 供方确认 SUPPLIER APPROVED BY 批 准 Approved by 审 核 Checked by 制 表 Prepared by Shenzhen FLYUEACE Model Technology Co., LTD 2.4GHz Antenna 2.4GHz Antenna 2.试验设备和条件(Test Equipment & Conditions) 2.1．Network Analyzers :KEYSIGHT P5002A 2.2．Communications Test Set:R&S CMW 500 2.3．3D Chamber Test System:64探头测试系统 3.样机结构说明件(Mechanical instruction) 4. S11 5.增益 /效率/3D图(Gain & Efficiency& 3D Pattern) 3D Pattern @2400-2500MHz YZ XY 2400MHZ XZ 2450MHZ 2500MHZ

TEST SETUP PHOTOS Radiated Emission