18_WCS02 RFExp r2

FCC ID: 2ADDW-WCS02

RF Exposure Info

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FCCID_4300123

FCC TEST REPORT FCC ID: 2ADDW-WCS02 On Behalf of Shenzhen Topband Co., Ltd Wireless Charging Stand Model No.: WCS02 Prepared for : Shenzhen Topband Co., Ltd Topband Industrial Park, Liyuan Industrial Zone, Shiyan Address : Town, Bao’An District, Shenzhen 518108, 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 : T1904002-C02-R02 Date of Receipt : April 9, 2019 Date of Test : April 9-28, 2019 Date of Report : May 10, 2019 Version Number : V0

Page 2 of 14 Report No.: T1904002-C02-R02 TABLE OF CONTENTS 1. Test Result Summary .............................................................................. 5 2. EUT Description ....................................................................................... 6 2.1. DESCRIPTION OF DEVICE (EUT) ............................................................................................................. 6 2.2. ACCESSORIES OF DEVICE (EUT)............................................................................................................ 8 2.3. TESTED SUPPORTING SYSTEM DETAILS ................................................................................................. 8 2.4. BLOCK DIAGRAM OF CONNECTION BETWEEN EUT AND SIMULATORS ....................................................... 8 2.5. DESCRIPTION OF TEST MODES ............................................................................................................... 8 2.6. TEST CONDITIONS ................................................................................................................................. 8 2.7. TEST FACILITY ...................................................................................................................................... 9 2.8. MEASUREMENT UNCERTAINTY ............................................................................................................... 9 3. Test Results and Measurement Data ................................................... 10 3.1. RF EXPOSURE TEST ....................................................................................................................... 10 4. Photos of test setup .............................................................................. 13 5. Photographs of EUT .............................................................................. 14

Page 3 of 14 Report No.: T1904002-C02-R02 TEST REPORT DECLARATION Applicant : Shenzhen Topband Co., Ltd Topband Industrial Park, Liyuan Industrial Zone, Shiyan Town, Address : Bao’An District, Shenzhen 518108, China Manufacturer : Shenzhen Topband Co., Ltd Topband Industrial Park, Liyuan Industrial Zone, Shiyan Town, Address : Bao’An District, Shenzhen 518108, China EUT Description : Wireless Charging Stand (A) Model No. : WCS02 (B) Trademark : Topband Measurement Standard Used: FCC KDB 680106 D01 RF Exposure Wireless Charging Apps v03 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 test. Also, this report shows that the EUT is technically compliant with the KDB 680106 D01 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. Lucas Pang Tested by (name + signature)........…..: Project Engineer Simple Guan Approved by (name + signature)…....: Project Manager Date of issue…… …………………..: May 10, 2019

Page 4 of 14 Report No.: T1904002-C02-R02 Revision History Revision Issue Date Revisions Revised By V0 May 10, 2019 Initial released Issue Simple Guan

Page 5 of 14 Report No.: T1904002-C02-R02 1. Test Result Summary Requirement CFR 47 Section Result RF EXPOSURE §1.1307(b)(1) & KDB680106 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 14 Report No.: T1904002-C02-R02 2. EUT Description 2.1. Description of Device (EUT) EUT Name : Wireless Charging Stand Model No. : WCS02 DIFF. : N/A Trademark : Topband Power supply : Input: DC 5V/2A, 9V/1.5A QI output: 5W, 7.5W, 10W Operation frequency : 125-205KHz Modulation : MSK Antenna Type : Coil Antenna, Maximum Gain is 4dBi Software version : V1.0 Hardware version : V1.0 Note : There are two coil antennas inside the EUT. The coil specifications are the same. The two antennas can transmit simultaneously. So the report reflects the data of two antennas.

Page 7 of 14 Report No.: T1904002-C02-R02 Conditions requirement Answers Power transfer frequency is less that 1 MHz After measuring the product the transfer frequency is 125-205KHz Output power from each primary coil is less than After measuring the product the each 15 watts primary coil power is 10 watts The transfer system includes only single primary The wireless charger has two primary and secondary coils. This includes charging coils and two primary coils in the systems that may have multiple primary coils charger. It can only detect and allow and clients that are able to detect and allow coupling between single coil pairs. coupling only between individual pairs of oils Client device is inserted in or placed directly in Client device is placed directly in contact with the transmitter contact with the transmitter Mobile exposure conditions only (portable Mobile exposure conditions only. exposure conditions are not covered by this exclusion). The aggregate H-field strengths at 15 cm After measuring the product the Max surrounding the device and 20 cm above the top H-Filed Strength is 0.28A/m Far less surface from all simultaneous transmitting coils than 50% of the MPE limit. are demonstrated to be less than 50% of the MPE limit.

Page 8 of 14 Report No.: T1904002-C02-R02 2.2. Accessories of Device (EUT) Accessories1 : / Manufacturer : / Model : / Ratings : / 2.3. Tested Supporting System Details Certification or No. Description Manufacturer Model Serial Number DOC 1 Load -- -- -- -- 2 Adapter YIBOYUAN QC08 -- -- 2.4. Block Diagram of connection between EUT and simulators 2.5. Description of Test Modes Frequency Frequency Frequency Frequency Channel Channel Channel Channel (KHz) (KHz) (KHz) (KHz) 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 2.6. Test Conditions Items Required Actual Temperature range: 15-35℃ 27℃ Humidity range: 25-75% 56% Pressure range: 86-106kPa 980kPa

Page 9 of 14 Report No.: T1904002-C02-R02 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 Uncertainty Uncertainty for Conducted Emission Test 2.74dB Uncertainty for Radiation Emission test in 3m chamber 3.77dB (30MHz to 1GHz) 3.80dB 4.16dB Uncertainty for Radiation Emission test in 3m chamber 4.13dB (1GHz to 25GHz) 2.56dB(Polarize: V) Uncertainty for radio frequency 5.4×10-8 Uncertainty for conducted RF Power 0.37dB Uncertainty for temperature 0.2℃ Uncertainty for humidity 1% Uncertainty for DC and low frequency voltages 0.06%

Page 10 of 14 Report No.: T1904002-C02-R02 3. Test Results and Measurement Data 3.1. RF EXPOSURE TEST 3.1.1. Test Specification Test Requirement: FCC Rules and Regulations KDB680106 Test Method: §1.1307(b)(1) & KDB680106 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 Limits: level in excess of the Commission’s guidelines. According to §1.1310 and §2.1093 RF exposure is calculated. According KDB680106 D01v03: RF Exposure Wireless Charging Apps v02. Test Setup: Test Mode: Charging + Transmitting Mode 1. The RF exposure test was performed on 360 degree turn table in anechoic chamber. 2. The measurement probe was placed at test distance (15cm) which is between the edge of the charger and the geometric centre of probe. 3. The turn table was rotated 360d degree to search of Test Procedure: highest strength. 4. The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed. 5. The EUT were measured according to the dictates of KDB 680106D01v03. 6. E to position is 20cm. Test Result: PASS

Page 11 of 14 Report No.: T1904002-C02-R02 3.1.2. Test Instruments Cal. Item Equipment Manufacturer Model No. Serial No. Last Cal. Interval Van der 1. MPB MS-210 0019 2018.09.21 1 Year Hoofden

Page 12 of 14 Report No.: T1904002-C02-R02 3.1.3. Test data For Full load mode: E-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (V/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (V/m) (V/m) 0.205 1.78 1.44 1.45 1.65 1.37 307 614 H-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (A/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (A/m) (A/m) 0. 205 0.28 0.24 0.23 0.25 0.23 0.815 1.63 For half load mode: E-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (V/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (V/m) (V/m) 0.175 1.33 1.26 1.20 1.21 1.19 307 614 H-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (A/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (A/m) (A/m) 0.175 0.23 0.21 0.18 0.18 0.17 0.815 1.63 For No load mode: E-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (V/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (V/m) (V/m) 0.125 1.16 1.18 1.11 1.12 1.13 307 614 H-Filed Strength at 15 cm for position A,B,C,D 20cm for position E from the edges surrounding the EUT (A/m) Frequency Test Test Test Test Test Limit Limits Range Position Position Position Position Position (50%) Test (MHz) A B C D E (A/m) (A/m) 0.125 0.16 0.17 0.13 0.13 0.14 0.815 1.63 Note: Location A of H-Filed Strength test in full load mode is the worst mode.

Page 13 of 14 Report No.: T1904002-C02-R02 4. Photos of test setup For Full load mode For No load mode

Page 14 of 14 Report No.: T1904002-C02-R02 5. Photographs of EUT Refer to test report T1904002-C02-R01. ------End------


Document Created: 1690-05-30 00:00:00
Document Modified: 1690-05-30 00:00:00
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