Test Report_DCD

FCC ID: 2ARDY-T511

Test Report

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FCCID_4189041

FCC TEST REPORT FCC ID: 2ARDY-T511 On Behalf of SHENZHEN DAK TECHNOLOGY CO.,LTD Wireless Charger Model No.: T511, T513, T517, T811C,T526, T527, T528, T516, T525, T532, T538, T539, T560, T561, T562, T563, T565, T567, T568 (T5xx: T5 followed by two numbers) Prepared for : SHENZHEN DAK TECHNOLOGY CO.,LTD 3-4/F, BLDG D, Demei Industrial CTR, Donghuan 2nd RD, Address : Longhua St., Longhua District, Shenzhen, China Prepared By : Shenzhen Alpha Product Testing Co., Ltd. Building i, No.2, Lixin Road, Fuyong Street, Bao'an District, Address : 518103, Shenzhen, Guangdong, China Report Number : T1890162 05 Date of Receipt : January 24, 2019 Date of Test : January 24, 2019-February 14, 2019 Date of Report : February 14, 2019 Version Number : REV0

Page 2 of 25 Report No.: T1890162 05 TABLE OF CONTENTS 1. Test Result Summary .................................................................................. 5 2. General Information .................................................................................... 6 2.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................... 6 2.2. ACCESSORIES OF DEVICE (EUT) .......................................................................................................... 7 2.3. TESTED SUPPORTING SYSTEM DETAILS ................................................................................................ 7 2.4. BLOCK DIAGRAM OF CONNECTION BETWEEN EUT AND SIMULATORS ...................................................... 7 2.5. DESCRIPTION OF TEST MODES ............................................................................................................. 7 2.6. TEST CONDITIONS ............................................................................................................................... 7 2.7. TEST FACILITY .................................................................................................................................... 8 2.8. MEASUREMENT UNCERTAINTY ............................................................................................................. 8 2.9. TEST EQUIPMENT LIST ......................................................................................................................... 9 3. Test Results and Measurement Data ...................................................... 10 3.1. CONDUCTED EMISSION ...................................................................................................................... 10 3.2. RADIATED SPURIOUS EMISSION MEASUREMENT .................................................................................. 14 3.3. TEST SPECIFICATION ......................................................................................................................... 21 4. Photos of test setup .................................................................................. 23 5. Photographs of EUT .................................................................................. 25

Page 3 of 25 Report No.: T1890162 05 TEST REPORT DECLARATION Applicant : SHENZHEN DAK TECHNOLOGY CO.,LTD 3-4/F, BLDG D, Demei Industrial CTR, Donghuan 2nd RD, Longhua Address : St., Longhua District, Shenzhen, China Manufacturer : SHENZHEN DAK TECHNOLOGY CO.,LTD 3-4/F, BLDG D, Demei Industrial CTR, Donghuan 2nd RD, Longhua Address : St., Longhua District, Shenzhen, China EUT : Wireless Charger Description T511, T513, T517, T811C,T526, T527, T528, T516, T525, T532, T538, T539, T560, T561, (A) Model No. : T562, T563, T565, T567, T568 (T5xx: T5 followed by two numbers) (B) Trademark : CHOETECH Measurement Standard Used: FCC CFR Title 47 Part 15 Subpart C Section 15.209 The device described above is tested by Shenzhen Alpha Product Testing Co., Ltd. to determine the maximum emission levels emanating from the device and the severe levels of the device can endure and its performance criterion. The test results are contained in this test report and Shenzhen Alpha Product Testing Co., Ltd. is assumed full responsibility for the accuracy and completeness of test. Also, this report shows that the EUT is technically compliant with the FCC CFR Title 47 Part 15 Subpart C Section 15.209 requirements. This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Shenzhen Alpha Product Testing Co., Ltd. Reak Yang Tested by (name + signature)........…..: Project Engineer …………………………… Simple Guan Approved by (name + signature)…....: Project Manager …………………………… Date of issue…… …………………..: February 14, 2019

Page 4 of 25 Report No.: T1890162 05 Revision History Revision Issue Date Revisions Revised By 00 February 14, 2019 Initial released Issue Simple Guan

Page 5 of 25 Report No.: T1890162 05 1. Test Result Summary Requirement CFR 47 Section Result Antenna requirement §15.203 PASS AC Power Line Conducted §15.207 PASS Emission Spurious Emission §15.209(a)(f) PASS Occupied Bandwidth §15.215 (c) 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.

Page 6 of 25 Report No.: T1890162 05 2. General Information 2.1. Description of Device (EUT) EUT Name : Wireless Charger Model No. : T511, T513, T517, T811C,T526, T527, T528, T516, T525, T532, T538, T539, T560, T561, T562, T563, T565, T567, T568 (T5xx: T5 followed by two numbers) There is no difference between all the models, except the DIFF. : appearance color and model number, this report performs the model T511. Trademark : CHOETECH Power supply : Input: 5V/2A Output: 5W Operation frequency : 125-205KHz Modulation : MSK Antenna Type : Coil Antenna, Maximum Gain is 28dBi Software version : V1.0 Hardware version : V3.0

Page 7 of 25 Report No.: T1890162 05 2.2. Accessories of Device (EUT) Accessories1 : / Manufacturer / Model / Ratings / 2.3. Tested Supporting System Details Certification or No. Description Manufacturer Model Serial Number poc 1 Load —— —— —— —— 2 Adapter —— A138A120150 —— —— 2.4. Block Diagram of connection between EUT and simulators Load EUT [~7 Adapter > AC 120V/60Hz 2.5. Description of Test Modes Channel Frifl:‘i’;cy Channel Fr?flfiz’;cy Channel Fr?%fi;cy Channel Fr?%‘fz';cy 1 125 6 150 11 175 16 200 2 130 7 155 12 180 17 205 3 135 8 160 13 185 18 4 140 9 165 14 190 19 5 145 10 170 15 195 20 Note: Pre—San all output power mode, and only worst data listed in report (DC 5V/1A). 2.6. Test Conditions Items Required Actual Temperature range: 15—35°C 27°C Humidity range: 25—75% 56% Pressure range: 86—106kPa 980kPa

Page 8 of 25 Report No.: T1890162 05 2.7. Test Facility Shenzhen Alpha Product Testing Co., Ltd Building i, No.2, Lixin Road, Fuyong Street, Bao'an District, 518103, Shenzhen, Guangdong, China June 21, 2018 File on Federal Communication Commission Registration Number: 293961 July 25, 2017 Certificated by IC Registration Number: 12135A 2.8. Measurement Uncertainty (95% confidence levels, k=2) Item MU Remark Uncertainty for Conducted Emission Test 2.74dB Uncertainty for Radiation Emission test in 3m chamber 3.77dB Polarize: V (30MHz to 1GHz) 3.80dB Polarize: H Uncertainty for Radiation Emission test in 3m chamber 4.16dB Polarize: H (1GHz to 25GHz) 4.13dB Polarize: V Uncertainty for radio frequency 5.4×10-8 Uncertainty for conducted RF Power 0.37dB

Page 9 of 25 Report No.: T1890162 05 2.9. Test Equipment List Equipment Manufacture Model No. Serial No. Last cal. Cal Interval 3m ETS-LINDGREN N/A SEL0017 2018.09.21 1Year Semi-Anechoic Spectrum Agilent E4407B MY46185649 2018.09.21 1Year analyzer Receiver R&S ESCI 1166.5950K03-1011 2018.09.21 1Year Receiver R&S ESCI 101202 2018.09.21 1Year Bilog Antenna Schwarzbeck VULB 9168 VULB9168-438 2018.04.13 2Year Active Loop SCHWARZBEC FMZB 1519B 00059 2018.09.26 2Year Antenna K Cable Resenberger N/A No.1 2018.09.21 1Year SCHWARZBEC Cable N/A No.2 2018.09.21 1Year K SCHWARZBEC Cable N/A No.3 2018.09.21 1Year K Pre-amplifier Schwarzbeck BBV9743 9743-019 2018.09.21 1Year AFS33-18002650- Pre-amplifier R&S SEL0080 2018.09.21 1Year 30-8P-44 Temperature Terchy MHQ 120 2018.09.21 1Year controller L.I.S.N.#1 Schwarzbeck NSLK8126 8126466 2018.09.21 1Year ROHDE&SCHW L.I.S.N.#2 ENV216 101043 2018.09.21 1 Year ARZ 20db Attenuator ICPROBING IATS1 82347 2018.09.21 1 Year

Page 10 of 25 Report No.: T1890162 05 3. Test Results and Measurement Data 3.1. Conducted Emission 3.1.1. Test Specification Test Requirement: FCC Part15 C Section 15.207 Test Method: ANSI C63.10:2013 Frequency Range: 150 kHz to 30 MHz Receiver setup: RBW=9 kHz, VBW=30 kHz, Sweep time=auto Frequency range Limit (dBuV) (MHz) Quasi-peak Average Limits: 0.15-0.5 66 to 56* 56 to 46* 0.5-5 56 46 5-30 60 50 Test Setup: Test Mode: Charging + Transmitting Mode 1. The E.U.T is connected to an adapter through a line impedance stabilization network (L.I.S.N.). This provides a 50ohm/50uH coupling impedance for the measuring equipment. 2. The peripheral devices are also connected to the main power through a LISN that provides a 50ohm/50uH coupling impedance with 50ohm termination. (Please Test Procedure: refer to the block diagram of the test setup and photographs). 3. Both sides of A.C. line are checked for maximum conducted interference. In order to find the maximum emission, the relative positions of equipment and all of the interface cables must be changed according to ANSI C63.10: 2013 on conducted measurement. Test Result: PASS

Page 11 of 25 Report No.: T1890162 05 3.1.2. Test data Please refer to following diagram for individual Test Mode : Full Load Test Results : PASS Note: The test results are listed in next pages. This mode is worst case mode, so this report only reflected the worst mode. If the limits for the measurement with the average detector are met when using a receiver with a peak detector, the test unit shall be deemed to meet both limits and the measurement with the average detector and quasi-peak detector need not be carried out. If the limits for the measurement with the average detector are met when using a receiver with a quasi-peak detector, the test unit shall be deemed to meet both limits and the measurement with the average detector need not be carried out.

Conducted Emission Measurement File :2019 Data #4 Date: 2019—1—25 Time: 13:45:59 80.0 dBuv 70 FCC Part 15 CLASS B QP 60 oT FCC Part 15 CLASS B AV 50 o 40 i 2 30 5 a 5 20 peak 10 lave 0.0 0.150 05 (MHz] 5 30.000 Reading Correct Measure— _ _ . No. Mk. Freq. Level Factor ment Limit Margin MHz dBuV d8 dBuV dBuV dB Detector Comment 1 0.1530 36.15 9.66 45.81 65.84 —20.03 peak 2 0.4650 22.62 9.71 32.33 56.60 —24.27 peak 3 0.8280 16.10 9.74 25.84 56.00 —30.16 peak 4 1.2390 15.61 9.79 25.40 56.00 —30.60 peak 5 1.8600 17.05 9.87 26.92 56.00 —29.08 QP 6 1.8600 11.67 9.87 21.54 46.00 —24.46 AVG 7 9.9180 26.25 10.32 36.57 60.00 —23.43 QP 8 * 9.9180 19.99 10.32 30.31 50.00 —19.69 AVG *:Maximum data x:Overlimit L:over margin Note: Measurement=Reading Level+Correc Factor. Factor=(LISN or ISN or PLC or Current Probe)Factor+Cable

Conducted Emission Measurement File :2019 Data #3 Date: 2019—1—25 Time: 13:42:48 80.0 dBuv 70 \ FCC Part 15 CLASS B OP 60 o \ FCC Part 15 CLASS B AV 50 o 40 \j 30 3 d 8 20 peak 10 lave 0.0 0.150 05 (MHz] 5 30.000 Reading Correct Measure— _ _ . No. Mk. Freq. Level Factor ment Limit Margin MHz dBuV d8 dBuV dBuV dB Detector Comment 10 * 0.1530 37.39 9.66 47.05 65.84 —18.79 peak 2 0.2070 32.05 9.67 41.72 63.32 —21.60 peak 3 1.4460 16.17 9.82 25.99 56.00 —30.01 peak 4 1.8600 16.00 9.87 25.87 56.00 —30.13 QP 5 1.8600 10.98 9.87 20.85 46.00 —25.15 AVG 6 9.9090 24.82 10.32 35.14 60.00 —24.86 QP 7 9.9090 18.04 10.32 28.36 50.00 —21.64 AVG 8 24.1709 14.59 10.72 25.31 60.00 —34.69 peak *:Maximum data x:Over limit L:over margin Note: Measurement=Reading Level+Correc Factor. Factor=(LISN or ISN or PLC or Current Probe)Factor+Cable

Page 14 of 25 Report No.: T1890162 05 3.2. Radiated Spurious Emission Measurement 3.2.1. Test Specification Test Requirement: FCC Part15 C Section 15.209 Test Method: ANSI C63.10: 2013 Frequency Range: 9 kHz to 25 GHz Measurement Distance: 3m Antenna Polarization: Horizontal & Vertical Operation mode: Refer to item 4.1 Frequency Detector RBW VBW Remark 9kHz- 150kHz Quasi-peak 200Hz 1kHz Quasi-peak Value 150kHz- Quasi-peak 9kHz 30kHz Quasi-peak Value Receiver Setup: 30MHz 30MHz-1GHz Quasi-peak 100KHz 300KHz Quasi-peak Value Peak 1MHz 3MHz Peak Value Above 1GHz Peak 1MHz 10Hz Average Value Field Strength Measurement Frequency (microvolts/meter) Distance (meters) 0.009-0.490 2400/F(KHz) 300 0.490-1.705 24000/F(KHz) 30 1.705-30 30 30 30-88 100 3 88-216 150 3 Limit: 216-960 200 3 Above 960 500 3 Measurement Field Strength Frequency Distance Detector (microvolts/meter) (meters) 500 3 Average Above 1GHz 5000 3 Peak For radiated emissions below 30MHz Test setup: 30MHz to 1GHz

Page 15 of 25 Report No.: T1890162 05 Above 1GHz 1. For the radiated emission test below 1GHz: The EUT was placed on a turntable with 0.8 meter above ground. The EUT was set 3 meters from the interference receiving antenna, which was mounted on the top of a variable height antenna tower. The EUT was arranged to its worst case and then tune the antenna tower (from 1 m to 4 m) and turntable (from 0 degree to 360 degrees) to find the maximum reading. A pre-amp and a high PASS filter are used for the test in order to get better signal level. For the radiated emission test above 1GHz: Place the measurement antenna on a turntable with Test Procedure: 1.5 meter above ground, which is away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which

Page 16 of 25 Report No.: T1890162 05 maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 2. Corrected Reading: Antenna Factor + Cable Loss + Read Level - Preamp Factor = Level 3. For measurement below 1GHz, If the emission level of the EUT measured by the peak detector is 3 dB lower than the applicable limit, the peak emission level will be reported. Otherwise, the emission measurement will be repeated using the quasi-peak detector and reported. 4. Use the following spectrum analyzer settings: (1) Span shall wide enough to fully capture the emission being measured; (2) Set RBW=100 kHz for f < 1 GHz; VBW ≥ RBW; Sweep = auto; Detector function = peak; Trace = max hold; (3) Set RBW = 1 MHz, VBW= 3MHz for f  1 GHz for peak measurement. For average measurement: VBW = 10 Hz, when duty cycle is no less than 98 percent. VBW ≥1/T, when duty cycle is less than 98 percent where T is the minimum transmission duration over which the transmitter is on and is transmitting at its maximum power control level for the tested mode of operation. Test mode: Refer to section 4.1 for details Test results: PASS

Page 17 of 25 Report No.: T1890162 05 3.2.2. Test Data Please refer to following diagram for individual Frequency : 9KHz~30MHz Range Test Mode : TX: channel low, channel mid, channel high Test Results : PASS Note: 1. The test results are listed in next pages. 2. This mode is worst case mode, so this report only reflected the worst mode. 3. If the limits for the measurement with the average detector are met when using a receiver with a peak detector, the test unit shall be deemed to meet both limits and the measurement with the quasi-peak detector need not be carried out. Antenna Cable Amp Freq. Reading Result Limit Margin State Factor loss Factor Detect (dBuV/m) or (MHz) (dBuV/m) dB/m dB dB (dBuV/m) (dB) P/F at 3 m 0.125 24.10 48.34 0.16 29.87 42.73 126.77 -11.27 PK PASS 0.125 18.76 48.34 0.16 29.87 37.39 106.77 -16.61 AV PASS 0.175 92.59 48.34 0.16 29.87 111.22 122.95 -11.73 PK PASS 0.175 69.33 48.34 0.16 29.87 87.96 102.95 -14.99 AV PASS 0.205 49.29 48.38 0.17 29.89 67.95 120.76 -52.81 PK PASS 0.205 46.15 48.38 0.17 29.89 64.81 100.76 -35.95 AV PASS 0.35 44.93 48.44 0.19 29.89 63.67 117.78 -54.11 PK PASS 0.35 42.62 48.44 0.19 29.89 61.36 97.78 -36.42 AV PASS 0.45 45.55 48.47 0.19 29.89 64.32 115.35 -51.03 PK PASS 0.45 42.27 48.47 0.19 29.89 61.04 95.35 -34.31 AV PASS 1.928 18.31 49.12 0.2 29.94 37.69 60 -22.31 QP PASS 1.920 21.81 49.12 0.2 29.94 41.19 60 -18.81 QP PASS

Page 18 of 25 Report No.: T1890162 05 Frequency : 30MHz~1000MHz Range Test Mode : Full Load Test Results : PASS Note: 1. The test results are listed in next pages. 2. This mode is worst case mode, so this report only reflected the worst mode. 3. If the limits for the measurement with the average detector are met when using a receiver with a peak detector, the test unit shall be deemed to meet both limits and the measurement with the quasi-peak detector need not be carried out. Frequency : Above 1GHz Range EUT : / Test Date : / M/N : / Temperature : / Test Engineer : / Humidity : / Test Mode : / Test Results : N/A 1. The highest frequency of the internal sources of the EUT is less than 108 MHz, Note: the measurement shall only be made up to 1 GHz. So the frequency rang above 1GHz radiation test not applicable.

Page 19 of 25 Report No.: T1890162 05 Test result for Channel 125KHz, AC 120V/ 60Hz 30MHz-1GHz Horizontal:

Page 20 of 25 Report No.: T1890162 05 Test result for Channel 125KHz, AC 120V/ 60Hz Vertical: Note: Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier

Page 21 of25 Repor No: Tiecoree 0s 3.3. Test Specification Test Requirement: FCC Part15 C Section 15.215(c) Test Method: ANSICS3.10: 2013 Limit: NA 1. According to Ts fallow Test—salup, keep ns relalive posiion between the artficial anterna and the EUT. 2. Set to the maximum power sefling and enable the EUT transmit continuously. 3. Use the following spectrum analyzer seltings for Test Procedure: 200B Bandwidih measurement. Span = approximately 2 to 3 times the 20 dB bandwicth, centered on a hopging channel; RBW> 1%of the 20 dB bandwicth; VBW=RBW; Sweep = auto; Detector function = peak; Trace = max hold. 4. Measure and record the resultsin the test report. Test setup: Spectrum Anarzer en Test Mode: Refer to section 4.1 for details Test results: PASS

Page 22 of 25 Report No.: T1890162 05 3.3.1. Test data 20dB Occupy Frequency(KHz) Limit (kHz) Conclusion Bandwidth (kHz) 175.0 27.26 --- PASS Test plots as follows: Lowest channel

Page 23 of 25 Report No.: T1890162 05 4. Photos of test setup Radiated Emission


Page 25 of 25 Report No.: T1890162 05 5. Photographs of EUT Please refer to separated files for External Photos & Internal Photos of the EUT. ------End------


Document Created: 2019-02-28 08:34:56
Document Modified: 2019-02-28 08:34:56
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