TZVET06Digital Proportion Model Radio Controller

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QA -FR-170-B Sh en Zhen WFLY Technology Development Co., Ltd. ADD: C2 Building, 4th Floor, Xiangli Industrial Park,Hepinghaoye Road, Fuyong Street, Bao'an District,Shenzhen China TEL: +86-755-26581815 FAX:+86-755-26581821 E-mail: [email protected] FCC Authorization Date: 202 0-02-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , Shen Zhen WFLY Technology Development Co., Ltd. , Hereby authorizes Bay Area Compliance Laboratories Corporation to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratory Corporation on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Cheng Ji General Manager

QA-F R-172-A Shen Zhen WFLY Technology Development Co., Ltd. Add: :C2 Building, 4th Floor, Xiangli Industrial Park,Hepinghaoye Road, Fuyong Street, Bao'an District,Shenzhen China Tel: +86-755-26581815 FAX:+86-755-26581821 Email: [email protected] FCC Confidential Authorization Date: 202 0-02-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: TZVET06 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shen Zhen WFLY Technology Development Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: Block Diagra m Sch emati cs O peration Descriptio n As well as short-term (secrecy cycle: 45 days) confidential treatment of information accompanying this application as outlined below: Internal Ph otos User’ s Manu al Ex ternal Phot os Test Set -up Phot os Th e above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature Cheng Ji General Manager

Shen Zhen WFLY Technology Development Co., Ltd. Add: C2 Building, 4th Floor, Xiangli Industrial Park,Hepinghaoye Road, Fuyong Street, Bao'an District,Shenzhen China Tel: +86-755-26581815 FAX:+86-755-26581821 Email: [email protected] DECLARATION OF SIMILARITY Date: 2020-02-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Shen Zhen WFLY Technology Development Co., Ltd., hereby declare that the product: digital proportion model radio controller, FCC ID: TZVET06. model: ET04,ST04,ST06,ST08 are electrically identical with the model: ET06 which was tested by BACL with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differen ces ET04,ET06 models are the external antenna, ST04,ST06,ST08 models Is a built-in antenna, and that are declared similar are as follows: They are the same product,and just the different model name. the rest are the same. The detail information, please check the r eports. Please contact me should there be need for any additional clarification or information. Best Regards, Signature: Cheng Ji General Manager

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Model: ET06 Model: ST06

FCC ID:TZVET06

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Model: ET06 Antenna Model: ST06 Antenna

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Dongguan). This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*” SAR EVALUATION REPORT For Shenzhen WFLY Technology Development Co.,Ltd. C2 Building, 4th Floor, Xiangli Industrial Park, Hepinghaoye Road, Fuyong Street, Bao'an District,Shenzhen City,Guangdong Province,China FCC ID: TZVET06 Report Type: Original Report Product Type: digital proportion model radio controller Report Number: RDG191220007-20 Report Date: 2020-01-19 Reviewed By: Rocky Xiao RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191220007-20 SAR Evaluation Report 2 of 35 Attestation of Test Results EUT Information EUT Description digital proportion model radio controller Tested Models ET06,ST06 Multiple Models ET04,ST04,ST08 FCC ID TZVET06 Serial Number RDG191220007-SA-S1(ET06) RDG191220007-SA-S2(ST06) Test Date 2019-12-21 MODE Max. SAR Level(s) Reported(W/kg) Limit SDR 2.4G ET06 1g Body SAR 0.35 1.6 10g Extremity SAR 0.34 4.0 ST06 1g Body SAR 0.23 1.6 10g Extremity SAR 0.21 4.0 Applicable Standards FCC 47 CFR part 2.1093 Radiofrequency radiation exposure evaluation: portable devices RF Exposure Procedures: TCB Workshop April 2019 IEEE1528:2013 IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques IEC 62209-2:2010 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-Human models, instrumentation, and procedures-Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz) KDB procedures KDB 447498 D01 General RF Exposure Guidance v06 KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04 KDB 865664 D02 RF Exposure Reportin g v01r02 Note: This wireless device has been shown to be capable of compliance for localized specific absorption rate (SAR) for General Population/Uncontrolled Exposure limits specified in FCC 47 CFR part 2.1093 and has been tested in accordance with the measurement procedures specified in IEEE 1528-2013 and RF exposure KDB procedures. The results and statements contained in this report pertain only to the device(s) evaluated. Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191220007-20 SAR Evaluation Report 3 of 35 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 EUT DESCRIPTION .................................................................................................................................................... 5 TECHNICAL SPECIFICATION ......................................................................................................................................... 5 REFERENCE, STANDARDS, AND GUIDELINES .................................................................................................. 6 SAR LIMITS ................................................................................................................................................................. 7 FACILITIES .................................................................................................................................................................. 8 DESCRIPTION OF TEST SYSTEM .......................................................................................................................... 9 EQUIPMENT LIST AND CALIBRATION ............................................................................................................. 15 EQUIPMENTS LIST & CALIBRATION INFORMATION .................................................................................................... 15 SAR MEASUREMENT SYSTEM VERIFICATION .............................................................................................. 16 LIQUID VERIFICATION ............................................................................................................................................... 16 SYSTEM ACCURACY VERIFICATION ........................................................................................................................... 17 SAR SYSTEM VALIDATION DATA ..................................................................................................................... 18 EUT TEST STRATEGY AND METHODOLOGY ................................................................................................. 19 TEST POSITIONS FOR DEVICE OPERATING NEXT TO A PERSON’S EAR........................................................................ 19 CHEEK/TOUCH POSITION ........................................................................................................................................... 20 EAR/TILT POSITION ................................................................................................................................................... 20 TEST POSITIONS FOR BODY-WORN AND OTHER CONFIGURATIONS .............................................................................. 21 TEST DISTANCE FOR SAR EVALUATION .................................................................................................................... 21 SAR EVALUATION PROCEDURE .........................................…

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PROBE CALIBRATION CERTIFICATES DIPOLE CALIBRATION CERTIFICATES

Report No.: RDG191220007-20 Page 1 of 10 Test Plot 1#: SDR 2.4G _ Close to Body Front _Mid DUT: digital proportion model radio controller; Type: ET06; Serial: RDG191220007-SA-S1 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x101x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.163 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 2.010 V/m; Power Drift = 0.08 dB Peak SAR (extrapolated) = 0.300 W/kg SAR(1 g) = 0.145 W/kg; SAR(10 g) = 0.072 W/kg Maximum value of SAR (measured) = 0.160 W/kg 0 dB = 0.160 W/kg = -7.96 dBW/kg Report No.: RDG191220007-20 Page 2 of 10 Test Plot 2#: SDR 2.4G _ Close to Body Top _Mid DUT: digital proportion model radio controller; Type: ET06; Serial: RDG191220007-SA-S1 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x101x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.383 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 1.071 V/m; Power Drift = -0.14 dB Peak SAR (extrapolated) = 0.705 W/kg SAR(1 g) = 0.333 W/kg; SAR(10 g) = 0.157 W/kg Maximum value of SAR (measured) = 0.368 W/kg 0 dB = 0.368 W/kg = -4.34 dBW/kg Report No.: RDG191220007-20 Page 3 of 10 Test Plot 3#: SDR 2.4G _ Handheld Front _Mid DUT: digital proportion model radio controller; Type: ET06; Serial: RDG191220007-SA-S1 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (81x81x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.192 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 0.4370 V/m; Power Drift = 0.15 dB Peak SAR (extrapolated) = 0.355 W/kg SAR(1 g) = 0.173 W/kg; SAR(10 g) = 0.085 W/kg Maximum value of SAR (measured) = 0.189 W/kg 0 dB = 0.189 W/kg = -7.24 dBW/kg Report No.: RDG191220007-20 Page 4 of 10 Test Plot 4#: SDR 2.4G_ Handheld Top _Mid DUT: digital proportion model radio controller; Type: ET06; Serial: RDG191220007-SA-S1 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x101x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.975 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 0.4250 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 1.97 W/kg SAR(1 g) = 0.795 W/kg; SAR(10 g) = 0.321 W/kg Maximum value of SAR (measured) = 0.875 W/kg 0 dB = 0.875 W/kg = -0.58 dBW/kg Report No.: RDG191220007-20 Page 5 of 10 Test Plot 5#: SDR 2.4G_ Close to Body Back _Mid DUT: digital proportion model radio controller; Type: ST06; Serial: RDG191220007-SA-S2 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (101x81x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.149 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 2.210 V/m; Power Drift = -0.11 dB Peak SAR (extrapolated) = 0.191 W/kg SAR(1 g) = 0.091 W/kg; SAR(10 g) = 0.046 W/kg Maximum value of SAR (measured) = 0.150 W/kg 0 dB = 0.150 W/kg = -8.24 dBW/kg Report No.: RDG191220007-20 Page 6 of 10 Test Plot 6#: SDR 2.4G _ Close to Body Front _Mid DUT: digital proportion model radio controller; Type: ST06; Serial: RDG191220007-SA-S2 Communication System: 2.4G SDR; Frequency: 2437 MHz;Duty Cycle: 1:7.43 Medium parameters used: f = 2437 MHz; σ = 1.817 S/m; ε r = 40.236; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Ele…

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Sh C2 henzhe 2 Building, 4 Report Origin a Repo R R Test en WFL 4th Floor, X Distri Type: al Report ort Number Report Date Reviewed By Laboratory FCC TE LY Tec Xiangli Indu ict,Shenzhe FC r: RDG19 1 e: 2020-03 y: Ivan Ca o Assistan y: Bay Ar e No.69 P Tangxi a Tel: +86 Fax: +86 www.ba C PART EST RE For chnolog ustrial Park, en City,Guan CC ID: TZ Produc digital control 1220007-00 -09 o nt Manager ea Complianc ulongcun, Pu a, Dongguan, 6-769-86858 6-769-86858 aclcorp.com. T 15.24 EPORT gy Dev Hepinghao ngdong Pro ZVET06 ct Name: proportio n ler ce Laborator uxinhu Indus , Guangdong 888 8891 cn 47 T velopm oye Road, F ovince,Chin n model ra ries Corp. (D stry Area, g, China ent Co Fuyong Stree a adio Dongguan) o.,Ltd. et, Bao'an Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191220007-00 Page 2 of 39 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 DECLARATIONS ............................................................................................................................................................ 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 FCC §15.247 (i) & §1.1310 & §2.1093- RF Exposure ................................................................................................. 9 APPLICABLE STANDARD .............................................................................................................................................. 9 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 10 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS ............................................................................. 11 APPLICABLE STANDARD ............................................................................................................................................ 11 EUT SETUP ................................................................................................................................................................ 11 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 12 TEST PROCEDURE ...................................................................................................................................................... 12 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 12 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 13 TEST DATA ................................................................................................................................................................ 13 FCC §15.247(a) (1) - CHANNEL SEPARATION TEST ......................................................................................... 24 APPLICABLE STANDARD ............................................................................................................................................ 24 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 24 TEST PROCEDURE ...................................................................................................................................................... 24 TEST DATA ................................................................................................................................................................ 24 FCC §15.247(a) (1) – 20 dB BANDWIDTH TESTING .............................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Internal Antenna Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View External Antenna Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View

Report No.: RDG191220007-20 Page 1 of 6 APPENDIX B EUT TEST POSITION PHOTOS Liquid depth ≥ 15cm Phantom Type: Twin SAM; Model: Twin SAM V5.0; S/N: 1412 Report No.: RDG191220007-20 Page 2 of 6 External Antenna Setup Photo: Close to Body Front Setup Photo(10mm) Close to Body Top Setup Photo(10mm) 10mm 10mm Report No.: RDG191220007-20 Page 3 of 6 Handheld Front Setup Photo(0mm) Handheld Top Setup Photo(0mm) Report No.: RDG191220007-20 Page 4 of 6 Internal Antenna Setup Photo: Close to Body Back Setup Photo(10mm) Close to Body Front Setup Photo(10mm) 10mm 10mm Report No.: RDG191220007-20 Page 5 of 6 Close to Body Top Setup Photo(10mm) Handheld Back Setup Photo(0mm) 10mm Report No.: RDG191220007-20 Page 6 of 6 Handheld Front Setup Photo(0mm) Handheld Top Setup Photo(0mm)