18_XO-9757 RFExp

FCC ID: 2ADK3-XO-9757

RF Exposure Info

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FCCID_4499145

Page 1 of 31 FCC Test Report Report No.: AGC02724191002FE03 FCC ID : 2ADK3-XO-9757 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Wireless charging with clock BRAND NAME : N/A MODEL NAME : XO-9757 APPLICANT : XING DA INTERNATIONAL ELECTRONICS LIMITED DATE OF ISSUE : Oct. 28, 2019 STANDARD(S) : FCC Part 15 Rules TEST PROCEDURE(S) REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd CAUTION: This report shall not be reproduced except in full without the written permission of the test laboratory and shall not be quoted out of context.

Report No.: AGC02724191002FE03 Page 2 of 31 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Oct. 28, 2019 Valid Initial Release

Report No.: AGC02724191002FE03 Page 3 of 31 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY ........................................................................................................................ 4 2. GENERAL INFORMATION ..................................................................................................................................... 5 2.1. PRODUCT DESCRIPTION .............................................................................................................................. 5 3. MEASUREMENT UNCERTAINTY .......................................................................................................................... 6 4. DESCRIPTION OF TEST MODES .......................................................................................................................... 7 5. SYSTEM TEST CONFIGURATION ......................................................................................................................... 8 5.1. CONFIGURATION OF EUT SYSTEM .............................................................................................................. 8 5.2. EQUIPMENT USED IN EUT SYSTEM .............................................................................................................. 8 5.3. SUMMARY OF TEST RESULTS ....................................................................................................................... 8 6. TEST FACILITY ...................................................................................................................................................... 9 7. RADIATED EMISSION .......................................................................................................................................... 10 7.1TEST LIMIT ...................................................................................................................................................... 10 7.2. MEASUREMENT PROCEDURE .................................................................................................................... 11 7.3. TEST SETUP.................................................................................................................................................. 12 7.4. TEST RESULT ................................................................................................................................................ 13 8. 20DB BANDWIDTH .............................................................................................................................................. 16 8.1. MEASUREMENT PROCEDURE .................................................................................................................... 16 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ............................................................................ 16 8.3. MEASUREMENT RESULTS........................................................................................................................... 17 9. FCC LINE CONDUCTED EMISSION TEST ......................................................................................................... 18 9.1. LIMITS OF LINE CONDUCTED EMISSION TEST.......................................................................................... 18 9.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST ....................................................................... 18 9.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST ..................................................... 19 9.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST ................................................................... 19 9.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST.............................................................................. 20 APPENDIX A: PHOTOGRAPHS OF TEST SETUP.................................................................................................. 22 APPENDIX B: PHOTOGRAPHS OF EUT ................................................................................................................ 24

Report No.: AGC02724191002FE03 Page 4 of 31 1. VERIFICATION OF CONFORMITY Applicant XING DA INTERNATIONAL ELECTRONICS LIMITED #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, Address China Manufacturer XING DA INTERNATIONAL ELECTRONICS LIMITED #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, Address China Factory XING DA INTERNATIONAL ELECTRONICS LIMITED #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, Address China Product Designation Wireless charging with clock Brand Name N/A Test Model XO-9757 Date of test Oct. 15, 2019 to Oct. 28, 2019 Deviation None Condition of Test Sample Normal Test Result Pass Report Template AGCRT-US-BR/RF We hereby certify that: The above equipment was tested by Attestation of Global Compliance (Shenzhen) Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with Section 15.207, 15.209, 15.203 of the FCC Part 15, Subpart C Rules. The results of testing in this report apply to the product/system which was tested only. Prepared By Jeast Zhan Oct. 28, 2019 (Project Engineer) Reviewed By Max Zhang Oct. 28, 2019 (Reviewer) Approved By Forrest Lei Oct. 28, 2019 ( Authorized Officer )

Report No.: AGC02724191002FE03 Page 5 of 31 2. GENERAL INFORMATION 2.1. PRODUCT DESCRIPTION A major technical description of EUT is described as following Operation Frequency 110-205 kHz Test Frequency 123.6kHz Maximum field strength 55.65dBuV/m(PK)@3m Modulation FSK Number of channels 1 Antenna Gain 0dBi Antenna Designation Integrated Antenna (Met 15.203 Antenna requirement) Hardware Version XO9757-1 V0 Software Version V1.0 Power Supply DC 5V 2A by adapter

Report No.: AGC02724191002FE03 Page 6 of 31 3. MEASUREMENT UNCERTAINTY The uncertainty is calculated using the methods suggested in the “Guide to the Expression of Uncertainty in measurement” (GUM) published by CISPR and ANSI. - Uncertainty of Conducted Emission, Uc = ±3.2 dB - Uncertainty of Radiated Emission below 1GHz, Uc = ±3.9 dB - Uncertainty of Radiated Emission above 1GHz, Uc = ±4.8 dB

Report No.: AGC02724191002FE03 Page 7 of 31 4. DESCRIPTION OF TEST MODES NO. TEST MODE DESCRIPTION 1 Wireless charging Mode(Full load) 2 Wireless charging Mode(half load) 3 Wireless charging Mode(Null load) Note: 1. The mode 1 was the worst case and only the data of the worst case record in this report.

Report No.: AGC02724191002FE03 Page 8 of 31 5. SYSTEM TEST CONFIGURATION 5.1. CONFIGURATION OF EUT SYSTEM Configure : EUT Accessory 5.2. EQUIPMENT USED IN EUT SYSTEM Item Equipment Model No. ID or Specification Remark Wireless charging 1 XO-9757 2ADK3-XO-9757 EUT with clock 2 Load N/A 5W Accessory 3 Adapter N/A DC 5V 2A Accessory 4 USB Cable N/A 1.0m, Unshielded Accessory 5.3. SUMMARY OF TEST RESULTS FCC RULES DESCRIPTION OF TEST RESULT §15.209 Radiated Emission Compliant §15.215 20dB bandwidth Compliant §15.207 Conducted Emission Compliant

Report No.: AGC02724191002FE03 Page 9 of 31 6. TEST FACILITY Test Site Attestation of Global Compliance (Shenzhen) Co., Ltd 1-2/F, Building 19, Junfeng Industrial Park, Chongqing Road, Heping Community, Location Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Designation Number CN1259 FCC Test Firm 975832 Registration Number A2LA Cert. No. 5054.02 Description Attestation of Global Compliance(Shenzhen) Co., Ltd is accredited by A2LA TEST EQUIPMENT OF CONDUCTED EMISSION TEST Equipment Manufacturer Model S/N Cal. Date Cal. Due TEST RECEIVER R&S ESPI 101206 Jun.12, 2019 Jun.11, 2020 LISN R&S ESH2-Z5 100086 Aug. 26, 2019 Aug. 25, 2020 TEST EQUIPMENT OF RADIATED EMISSION TEST Equipment Manufacturer Model S/N Cal. Date Cal. Due TEST RECEIVER R&S ESCI 10096 Jun.12, 2019 Jun.11, 2020 EXA Signal Aglient N9010A MY53470504 Dec. 20, 2018 Dec. 19, 2019 Analyzer Active loop antenna ZHINAN ZN30900C 18051 Jun.12, 2019 Jun.11, 2020 (9K-30MHz) ANTENNA SCHWARZBECK VULB9168 494 Jan. 09, 2019 Jan. 08, 2021

AGC Report No.: AGC02724191002FEO3 Page 10 of 31 7. RADIATED EMISSION 7ATEST LIMIT Standard FCC 15.209 Frequency Distance Field Strengths Limit (MHz) Meters 4 V/m dB(pV)/m 0.009 ~ 0.490 300 2400/F(kHz) 0.490 ~ 1.705 30 24000/F (kHz) 1.705 ~ 30 30 30 30 ~ 88 3 100 40.0 88 ~ 216 3 150 43.5 216 ~ 960 3 200 46.0 960 ~ 1000 3 500 54.0 Above 1000 3 Other:74.0 dB(uV)/m (Peak) 54.0 dB(uV)/m (Average) Remark: (1) Emission level dBuV = 20 log Emission level uV/m (2) The smaller limit shall apply at the cross point between two frequency bands. (3) Distance is the distance in meters between the measuring instrument, antenna and the closest point of any part of the device or system. Attestation of Global Compliance(Shenzhen)Co.,Ltd. Add: 2/F., Building 2,Sanwei Chaxi Industrial Park, Sanwei Community, Hangcheng Street, Bao‘an District, Shenzhen, Guangdong, China Tel: +86—755 2523 4088 E—mail: agc@age—cert.com Service Hotline:400 089 2118

Report No.: AGC02724191002FE03 Page 11 of 31 7.2. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine the position of the highest radiation. 3. The height of the broadband receiving antenna was varied between one meter and four meters above ground to find the maximum emissions field strength of both horizontal and vertical polarization. 4. For each suspected emissions, the antenna tower was scan (from 1 M to 4 M) and then the turntable was rotated (from 0 degree to 360 degrees) to find the maximum reading. 5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth under Maximum Hold Mode. 6. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the recorded data should be QP measured by receiver. High - Low scan is not required in this case. The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Receiver Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP

Report No.: AGC02724191002FE03 Page 12 of 31 7.3. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz

Report No.: AGC02724191002FE03 Page 13 of 31 7.4. TEST RESULT RADIATED EMISSION BELOW 30MHZ Reading Factor Level Limit Frequency Margin Polarization dB(uV) dB dB(uV/m) dB(uV/m) Pass/Fail MHz dB PK (1/m) PK PK 0.1236 Face 45.25 10.40 55.65 105.76 -50.11 Pass 0.1236 Side 35.18 10.40 45.58 105.76 -60.18 Pass Note1: No other emissions found between lowest internal used/generated frequencies to 30MHz. The peak level of the emission is less than the average limit, so the average level shall be less than the limit without test. Note 2: Level(dBuV/m)=Reading(dBuV)+Factor(dB/m) Factor(dB/m)=Antenna Factor(dB/m)+Cable loss(dB)+Attenuation(dB)for Attenuator Margin=Level-Limit Limit(dBuV/m)=20log(2400/F(kHz))+40log(300/3)=105.76dBuV/m.

® A\GC Report No.: AGC02724191002FEO3 Page 14 of 31 RADIATED EMISSION 30MHz— 1GHz EUT : Wireless charging with clock Model Name. : XO—9757 Temperature : 23 C Relative Humidity: 58% Pressure : 1010 hPa Test Voltage : DC 5V Test Mode : Mode 1 Polarization : Horizontal 66.9 dBu¥/m Limit: —— Margin: —— xon ui m olM 27 1: | | 3 %M 13 30.000 127.00 224.00 321.00 418.00 515.00 612.00 709.00 806. 00 1000.00 MHz No. Iyl k Freq. Reading| Factor |Measurement| Limit Over Detector Agteei;fi? DLZELEE Comment f M Hz ddouy do‘m dBuyim ddouyim dB cm degree 1 266.0333 10.59 18.80 29.39 46.00 |—16.61| peak 4 296.7500 11.80 18.55 31.35 46.00 |—14.65| peak 3 4794333 1.86 24 .58 26.44 46.00 |—19.56)| peak 4 660.5000 1.78 27 6B 28 .46 46.00 |—16.54| peak § * B27.0167 2.01 30.76 42.77 46.00 |—134.23| peak 6 962.8167 2.83 32 .24 35.07 54.00 |—18.93| peak RESULT: PASS Attestation of Global Compliance(Shenzhen)Co.,Ltd. Add: 2/F., Building 2,Sanwei Chaxi Industrial Park, Sanwei Community, Hangcheng Street, Bao‘an District, Shenzhen, Guangdong, China Tel: +86—755 2523 4088 E—mail: agc@age—cert.com Service Hotline:400 089 2118

AGC Report No.: AGCO02724191002FEO3 Page 15 of 31 EUT : Wireless charging with clock Model Name. : XO—9757 Temperature : 23 C Relative Humidity: 58% Pressure : 1010 hPa Test Voltage DC 5V Test Mode Mode 1 Polarization : Vertical 66.9 dBu¥/m Limat: —— Margin: _—— ]a |—I ?Wm § 3 4M w * 2WW 13 30.000 127.00 224.00 321.00 418.00 515.00 612.00 709.00 806.00 100000 MHz . 2222 Antenna| Table No . Iyl k Freq. o Readin d Factor |Measurement| Limit Cver . Detector Height Degree Comment MHz dBuy‘ cBim dBu‘¥im dBu¥im| dB cm degree 1 * 30.0000 16 .87 18.17 35.04 40.00 |—4.96 peak 2 170.6500 7.24 18.08 25.33 43.50 |—18.17|— peak 3 299.9833 8.56 19 47 28.03 46.00 |—17.97| peak 4 808.7667 2 .38 27.06 29.47 486.00 |—16.58| peak § 809.2333 2.34 30.53 32.87 46.00 |—13.13)] peak 6 9644333 3 .22 32.25 35§.47 §4.00 |—18.53)| peak RESULT: PASS Note: Factor=Antenna Factor + Cable loss, Margin=Limit—Level. The "Factor" value can be calculated automatically by software of measurement system. Attestation of Global Compliance(Shenzhen)Co.,Ltd. Add: 2/F., Building 2,Sanwei Chaxi Industrial Park, Sanwei Community, Hangcheng Street, Bao‘an District, Shenzhen, Guangdong, China Tel: +86—755 2523 4088 E—mail: agc@agec—cert.com Service Hotline:400 089 2118

Report No.: AGC02724191002FE03 Page 16 of 31 8. 20DB BANDWIDTH 8.1. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2, Set the EUT Work on operation frequency. 3. Set Span = approximately 2 to 5 times the 20 dB bandwidth, centered on a channel The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW and video bandwidth (VBW) shall be approximately three times RBW; Sweep = auto; Detector function = peak 4. Set SPA Trace 1 Max hold, then View. 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)

Report No.: AGC02724191002FE03 Page 17 of 31 8.3. MEASUREMENT RESULTS TEST ITEM 20DB BANDWIDTH TEST MODULATION FSK Test Data (Hz) Criteria Operate Channel 249 PASS TEST PLOT OF BANDWIDTH

Report No.: AGC02724191002FE03 Page 18 of 31 9. FCC LINE CONDUCTED EMISSION TEST 9.1. LIMITS OF LINE CONDUCTED EMISSION TEST Maximum RF Line Voltage Frequency Q.P.( dBuV) Average( dBuV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50MHz. 9.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST EUT & Support Units

Report No.: AGC02724191002FE03 Page 19 of 31 9.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane. 2. Support equipment, if needed, was placed as per ANSI C63.10. 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4. All support equipments received AC120V/60Hz power from a LISN, if any. 5. The EUT received charging voltage by adapter which received 120V/60Hzpower by a LISN.. 6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation. 9. The test mode(s) were scanned during the preliminary test. Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing. 9.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test. 2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the applicable limit. If EUT emission level was less –2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and Average detector. 3. The test data of the worst case condition(s) was reported on the Summary Data page.

Report No.: AGC02724191002FE03 Page 20 of 31 9.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST LINE CONDUCTED EMISSION TEST-L RESULT: PASS

Report No.: AGC02724191002FE03 Page 21 of 31 LINE CONDUCTED EMISSION TEST-N RESULT: PASS

Report No.: AGC02724191002FE03 Page 22 of 31 APPENDIX A: PHOTOGRAPHS OF TEST SETUP FCC RADIATED EMISSION TEST SETUP BELOW 1GHZ

Report No.: AGC02724191002FE03 Page 23 of 31 FCC LINE CONDUCTED EMISSION TEST SETUP

Report No.: AGC02724191002FE03 Page 24 of 31 APPENDIX B: PHOTOGRAPHS OF EUT ALL VIEW OF EUT TOP VIEW OF EUT

Report No.: AGC02724191002FE03 Page 25 of 31 BOTTOM VIEW OF EUT FRONT VIEW OF EUT

Report No.: AGC02724191002FE03 Page 26 of 31 BACK VIEW OF EUT LEFT VIEW OF EUT

Report No.: AGC02724191002FE03 Page 27 of 31 RIGHT VIEW OF EUT OPEN VIEW OF EUT-1

Report No.: AGC02724191002FE03 Page 28 of 31 OPEN VIEW OF EUT-2 OPEN VIEW OF EUT-3

Report No.: AGC02724191002FE03 Page 29 of 31 OPEN VIEW OF EUT-4 INTERNAL VIEW-1 OF EUT Antenna

Report No.: AGC02724191002FE03 Page 30 of 31 INTERNAL VIEW-2 OF EUT INTERNAL VIEW-3 OF EUT

Report No.: AGC02724191002FE03 Page 31 of 31 INTERNAL VIEW-4 OF EUT ----END OF REPORT----


Document Created: 2019-10-30 15:15:55
Document Modified: 2019-10-30 15:15:55
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