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RFexposure
Dongguan Boxinda Electronic Technology Co., LTD B-19 4 in1 Wireless Charger 2A4OE-B-19 2A4OEB19 b 19
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Document DEVICE REPORTGetApplicationAttachment.html?id=6553182Page 1 of 18 FCC ID: 2A4OE-B-19 RF Exposure Evaluation Report 1. Product Information FCC ID: Number of tested samples Sample number Product Name Model Number Power Supply Modulation Type Frequency Range Antenna Type Hardware version Software version Accessories Exposure category EUT Type Device Type 2A4OE-B-19 2 A050423093-1(Engineer sample), A050423093-2(Normal sample) 4 in1 Wireless Charger B-19 Input: 9V 3A, 12V 3A Mobile phone output1: 15W Max Mobile phone output2: 10W Headphone port output: 3W Watch Output: 2W Continuous Wave 110.3~205.0KHz Coil Antenna / / / General population/uncontrolled environment Production Unit Mobile Device Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 2 of 18 FCC ID: 2A4OE-B-19 2. Evaluation Method Per KDB 680106 D01 Section 3. RF Exposure Requirements; 1) Consumer wireless power transfer devices approved under Part 15 in some cases have to demonstrate compliance with RF exposure requirements. The potential for exposure must be assessed according to the operating configurations of the wireless system and the exposure conditions of users and bystanders. RF exposure must be evaluated with the client device(s) being charged by the primary at maximum output power. The RF exposure requirements must be determined in conjunction with the device operating characteristics, according to the mobile and portable exposure requirements in Section 2.1091 and Section 2.1093 of the rules. SAR and MPE limits do not cover the frequency range for wireless power transfer applications which operate below 100 kHz and 300 kHz respectively; therefore, RF exposure compliance needs to be determined with respect to 1.1307 (c) and (d) of the FCC rules. 2) Based on the design and implementation of the power transfer application, it must be clearly identified if mobile or portable RF exposure conditions apply. Devices that are installed to provide separation of at least 20 cm from users and bystanders may qualify for mobile exposure conditions. For some conditions where users and bystanders may be exposed at closer than 20 cm, section 2.1091(d) (4) of the rules may apply. 3) For devices designed for typical desktop applications, such a wireless charging pads, RF exposure evaluation should be conducted assuming a user separation distance of 15 cm. E and H field strength measurements or numerical modeling may be used to demonstrate compliance. Measurements should be made from all sides and the top of the primary/client pair, with the 15 cm measured from the center of the probe(s) to the edge of the device. Emissions between 100 kHz to 300 kHz should be assessed versus the limits at 300 kHz in Table 1 of Section 1.1310: 614 V/m and 1.63 A/m. A KDB inquiry is required to determine the applicable exposure limits below 100 kHz. 4) Portable exposure conditions from 100 kHz to 6 GHz are determined with respect to SAR requirements. Existing SAR systems and test procedures are generally intended for measurements above 100 MHz. While numerical modeling can be an alternative, the constraints of substantial computational resources at low frequencies could introduce further limitations. Under these circumstances, including operations below 100 kHz, the Commission may consider a combination of analytical analysis, field strength, radiated and conducted power measurements, in conjunction with some limited numerical modeling to assess compliance. 5) Depending on the operating frequency, existing SAR and MPE measurement procedures may be adapted to evaluate wireless power transfer devices for compliance with respect to mobile or portable exposure conditions. If the grantee or its test lab have any questions regarding RF exposure evaluation they should contact the FCC Laboratory with sufficient system operating configuration details to determine if RF exposure evaluation is necessary and, if required, how to apply specific test procedures. Below 100 MHz, when SAR testing is required and the device is operating at close proximity to persons, information on device design, implementation, operating configurations, exposure conditions of users and bystanders are needed to determine the evaluation and testing requirements. In addition, the influence of nearby objects may also need consideration according to the wireless power transfer system implementation; for example, the effects of placing the device, its coils or radiating elements on or near metallic surfaces Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 3. Evaluation Limit Page 3 of 18 FCC ID: 2A4OE-B-19 3.1 Refer evaluation method ANSI C95.11999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 680106 D01 RF Exposure Wireless Charging Apps v03: RF Exposure Considerations for Low Power Consumer Wireless Power Transfer Applications FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1091: Radiofrequency radiation exposure evaluation: mobile devices Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 4 of 18 FCC ID: 2A4OE-B-19 3.2 Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Electric Field Magnetic Field Power Density Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) Limits for Occupational/Controlled Exposure 0.3-3.0 3.0-30 614 1842/f 1.63 4.89/f *100 *900/f2 30-300 61.4 0.163 1.0 300-1,500 / / f/300 1,500-100,000 / / 5 Averaging Time (minute) 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Electric Field Magnetic Field Power Density Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 1.34-30 824/f 2.19/f *180/f2 30-300 27.5 0.073 0.2 300-1,500 / / f/1500 1,500-100,000 / / 1.0 Averaging Time (minute) 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density According to FCC KDB 680106 D01 Section 3. RF Exposure Requirements clause 3 the Emission-Limits in the frequency range from 100 KHz to 300 KHz should be assessed versus the limits at 300 KHz in Table 1 of CFR 47 Section1.310 as following (measured distance shall be 15cm from the center of the probe to the edge of the device): E-Field */* B-Field Frequency V/m A/m uT 0.3 MHz 3.0 MHz 614 1.613 2.0 3.0 MHz 30 MHz 824/f (=27.530MHz) 2.19/f (=0.07330MHz) -- A KDB inquire was required to determine/confirm the applicable limits below 100 KHz. Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 4. Test Setup Diagram Page 5 of 18 FCC ID: 2A4OE-B-19 5. Test Equipment Equipment Exposure Level Tester B-Field Probe Electric field probe Manufacturer Model Serial no. Narda Narda Narda ELT-400 N-0713 ELT-400 M-1154 EP601 611WX70332 Calibrated date 2022-10-29 2022-10-29 2023-01-29 Calibrated Due 2023-10-28 2023-10-28 2024-01-28 6. Measurement Uncertainty 95% confidence levels, k=2 Measurement Uncertainty Magnetic field expanded uncertainty Elecric Field expanded uncertainty = 3.65dB, k=2 = 2.67dB, k=2 7. Measurement Procedure a) The RF exposure test was performed on 360 degree turn table in anechoic chamber. b) The measurement probe was placed at test distance (15cm and 20cm) which is between the edges of the charger and the geometric center of probe. c) The turn table was rotated 360d degree to search of highest strength. d) The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed. e) The EUT were measured according to the dictates of KDB 680106D01v03. Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 6 of 18 FCC ID: 2A4OE-B-19 8. Equipment Approval Considerations The EUT does comply with item 5.2 of KDB 680106 D01v03 as follows table; Requirements of KDB 680106 D01 Yes / No Power transfer frequency is less than 1 MHz Yes Output power from each primary coil is less than or equal to 15 watts Yes The system may consist of more than one source primary coils, charging one or more clients. If more than one primary coil is Yes present, the coil pairs may be powered on at the same time. Client device is placed directly in contact with the transmitter. Yes Mobile exposure conditions only (portable exposure conditions are not covered by this Yes exclusion). The aggregate H-field strengths anywhere at or beyond 15 cm surrounding the device, and 20 cm away from the surface from all coils that by design can simultaneously Yes transmit, and while those coils are simultaneously energized, are demonstrated to be less than 50% of the applicable MPE limit. Description The device operate in the frequency range 110.3 KHz - 205 KHz Wireless charger output for iphone: The maximum output power of the primary coil is 15W. Charging systems have three primary coils and clients that are able to detect and allow coupling only between individual pairs of coils and the coil pairs powered on at the same time. Client device is placed directly in contact with the transmitter. Mobile exposure conditions only The EUT H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit. In all other cases, unless excluded above, an RF exposure evaluation report must be reviewed and accepted through a KDB or PBA inquiry to enable authorization of the equipment. When evaluation is required to show compliance; for example, using field strength, power density, SAR measurements or computational modeling etc., the specific authorization requirements will be determined based on the results of the RF exposure evaluation. Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 7 of 18 FCC ID: 2A4OE-B-19 9. E and H field Strength Test Modes Mode 1 AC/DC Adapter (12V/3A) + EUT + Phone1 (Battery Status: <1%) Mode 2 AC/DC Adapter (12V/3A) + EUT + Phone1 (Battery Status: <50%) Mode 3 AC/DC Adapter (12V/3A) + EUT + Phone1 (Battery Status: 100%) Mode 4 AC/DC Adapter (12V/3A) + EUT + Watch (Battery Status: <1%) Mode 5 AC/DC Adapter (12V/3A) + EUT + Watch (Battery Status: <50%) Mode 6 AC/DC Adapter (12V/3A) + EUT + Watch (Battery Status: 100%) Mode 7 AC/DC Adapter (12V/3A) + EUT + Phone2 (Battery Status: 100%) Mode 8 AC/DC Adapter (12V/3A) + EUT + Phone2 (Battery Status: 100%) Mode 9 AC/DC Adapter (12V/3A) + EUT + Phone2 (Battery Status: 100%) Mode 10 AC/DC Adapter (12V/3A) + EUT + Phone2 + Phone1 (Battery Status: <1%) Mode 11 AC/DC Adapter (12V/3A) + EUT + Phone2 + Phone1 (Battery Status: <50%) Mode 12 AC/DC Adapter (12V/3A) + EUT + Phone2 + Phone1 (Battery Status: 100%) Mode 13 AC/DC Adapter (12V/3A) + EUT + Phone1 + Watch + Phone2 (Battery Status: <1%) Mode 14 AC/DC Adapter (12V/3A) + EUT + Phone1 + Watch + Phone2 (Battery Status: <50%) Mode 15 AC/DC Adapter (12V/3A) + EUT + Phone1 + Watch + Phone2 (Battery Status: 100%) Note: All test modes were pre-tested, but we only recorded the worst case in this report. Record Record Record Record Record Record Record Record Record Record Record Record Record Record Record Field Strength at 15 cm from the edges surrounding the EUT Load mode Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Test Test Test Position A Position B Position C Position D Mode 1 110.3~205.0 uT 0.125 0.136 0.136 0.134 Mode 1 110.3~205.0 A/m 0.100 0.109 0.109 0.107 Mode 1 110.3~205.0 V/m 37.588 40.888 40.920 40.349 Mode 2 110.3~205.0 uT 0.122 0.134 0.137 0.131 Mode 2 110.3~205.0 A/m 0.098 0.107 0.109 0.104 Mode 2 110.3~205.0 V/m 36.739 40.295 41.068 39.261 Mode 3 110.3~205.0 uT 0.123 0.132 0.140 0.127 Mode 3 110.3~205.0 A/m 0.098 0.105 0.112 0.102 Mode 3 110.3~205.0 V/m 36.884 39.578 42.230 38.231 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 8 of 18 FCC ID: 2A4OE-B-19 Field Strength at 20cm from the surface coils Charging Battery Level Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Position E Mode 1 110.3~205.0 uT 0.146 Mode 1 110.3~205.0 A/m 0.117 Mode 1 110.3~205.0 V/m 43.954 Mode 2 110.3~205.0 uT 0.141 Mode 2 110.3~205.0 A/m 0.113 Mode 2 110.3~205.0 V/m 42.458 Mode 3 110.3~205.0 uT 0.138 Mode 3 110.3~205.0 A/m 0.111 Mode 3 110.3~205.0 V/m 41.566 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Field Strength at 15 cm from the edges surrounding the EUT Load mode Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Test Test Test Position A Position B Position C Position D Mode 4 110.3~205.0 uT 0.129 0.140 0.144 0.134 Mode 4 110.3~205.0 A/m 0.104 0.112 0.115 0.107 Mode 4 110.3~205.0 V/m 38.924 42.007 43.233 40.247 Mode 5 110.3~205.0 uT 0.127 0.140 0.135 0.132 Mode 5 110.3~205.0 A/m 0.102 0.112 0.108 0.106 Mode 5 110.3~205.0 V/m 38.182 42.007 40.716 39.714 Mode 6 110.3~205.0 uT 0.123 0.133 0.135 0.127 Mode 6 110.3~205.0 A/m 0.098 0.106 0.108 0.102 Mode 6 110.3~205.0 V/m 36.857 39.957 40.479 38.206 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 9 of 18 FCC ID: 2A4OE-B-19 Field Strength at 20cm from the surface coils Charging Battery Level Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Position E Mode 4 110.3~205.0 uT 0.135 Mode 4 110.3~205.0 A/m 0.108 Mode 4 110.3~205.0 V/m 40.458 Mode 5 110.3~205.0 uT 0.133 Mode 5 110.3~205.0 A/m 0.106 Mode 5 110.3~205.0 V/m 39.936 Mode 6 110.3~205.0 uT 0.127 Mode 6 110.3~205.0 A/m 0.101 Mode 6 110.3~205.0 V/m 38.044 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Field Strength at 15 cm from the edges surrounding the EUT Load mode Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Test Test Test Position A Position B Position C Position D Mode 7 110.3~205.0 uT 0.129 0.134 0.144 0.128 Mode 7 110.3~205.0 A/m 0.103 0.107 0.115 0.102 Mode 7 110.3~205.0 V/m 38.873 40.258 43.342 38.387 Mode 8 110.3~205.0 uT 0.127 0.130 0.137 0.126 Mode 8 110.3~205.0 A/m 0.101 0.104 0.110 0.101 Mode 8 110.3~205.0 V/m 38.063 39.199 41.167 38.022 Mode 9 110.3~205.0 uT 0.125 0.130 0.135 0.125 Mode 9 110.3~205.0 A/m 0.100 0.104 0.108 0.100 Mode 9 110.3~205.0 V/m 37.718 39.025 40.570 37.724 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 10 of 18 FCC ID: 2A4OE-B-19 Field Strength at 20cm from the surface coils Measured E-Field Strength Values Charging Battery Level Frequency Range (kHz) Field Strength (V/m) Measured H-Field Strength Values (A/m) Test Position E Mode 7 110.3~205.0 uT 0.140 Mode 7 110.3~205.0 A/m 0.112 Mode 7 110.3~205.0 V/m 41.953 Mode 8 110.3~205.0 uT 0.136 Mode 8 110.3~205.0 A/m 0.109 Mode 8 110.3~205.0 V/m 40.858 Mode 9 110.3~205.0 uT 0.132 Mode 9 110.3~205.0 A/m 0.105 Mode 9 110.3~205.0 V/m Note:V/m=10(((20lg(A/m*10^6)+51.5)-120)/20) 39.634 Note:A/m=uT/1.25 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Field Strength at 15 cm from the edges surrounding the EUT Load mode Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Test Test Test Position A Position B Position C Position D Mode 10 110.3~205.0 uT 0.130 0.140 0.144 0.131 Mode 10 110.3~205.0 A/m 0.104 0.112 0.115 0.105 Mode 10 110.3~205.0 V/m 39.049 41.969 43.393 39.535 Mode 11 110.3~205.0 uT 0.130 0.139 0.144 0.128 Mode 11 110.3~205.0 A/m 0.104 0.111 0.115 0.102 Mode 11 110.3~205.0 V/m 38.971 41.844 43.276 38.458 Mode 12 110.3~205.0 uT 0.119 0.134 0.141 0.125 Mode 12 110.3~205.0 A/m 0.096 0.108 0.113 0.100 Mode 12 110.3~205.0 V/m 35.897 40.413 42.440 37.502 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 11 of 18 FCC ID: 2A4OE-B-19 Field Strength at 20cm from the surface coils Measured E-Field Strength Values Charging Battery Level Frequency Range (kHz) Field Strength (V/m) Measured H-Field Strength Values (A/m) Test Position E Mode 10 110.3~205.0 uT 0.124 Mode 10 110.3~205.0 A/m 0.099 Mode 10 110.3~205.0 V/m 37.258 Mode 11 110.3~205.0 uT 0.123 Mode 11 110.3~205.0 A/m 0.098 Mode 11 110.3~205.0 V/m 36.884 Mode 12 110.3~205.0 uT 0.120 Mode 12 110.3~205.0 A/m 0.096 Mode 12 110.3~205.0 V/m Note:V/m=10(((20lg(A/m*10^6)+51.5)-120)/20) 36.012 Note:A/m=uT/1.25 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Field Strength at 15 cm from the edges surrounding the EUT Load mode Frequency Range (kHz) Field Strength Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Test Test Test Position A Position B Position C Position D Mode 13 110.3~205.0 uT 0.126 0.139 0.140 0.132 Mode 13 110.3~205.0 A/m 0.100 0.111 0.112 0.106 Mode 13 110.3~205.0 V/m 37.748 41.717 42.203 39.733 Mode 14 110.3~205.0 uT 0.125 0.135 0.140 0.132 Mode 14 110.3~205.0 A/m 0.100 0.108 0.112 0.106 Mode 14 110.3~205.0 V/m 37.555 40.712 41.978 39.710 Mode 15 110.3~205.0 uT 0.125 0.129 0.136 0.130 Mode 15 110.3~205.0 A/m 0.100 0.103 0.108 0.104 Mode 15 110.3~205.0 V/m 37.448 38.842 40.774 39.099 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 12 of 18 FCC ID: 2A4OE-B-19 Field Strength at 20cm from the surface coils Charging Battery Level Frequency Range (kHz) Field Strength Mode 13 110.3~205.0 uT Mode 13 110.3~205.0 A/m Mode 13 110.3~205.0 V/m Mode 14 110.3~205.0 uT Mode 14 110.3~205.0 A/m Mode 14 110.3~205.0 V/m Mode 15 110.3~205.0 uT Mode 15 110.3~205.0 A/m Mode 15 110.3~205.0 V/m Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Position E1 0.142 0.114 42.831 0.139 0.112 41.928 0.147 0.117 44.123 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Charging Battery Level Frequency Range (kHz) Field Strength Mode 13 110.3~205.0 uT Mode 13 110.3~205.0 A/m Mode 13 110.3~205.0 V/m Mode 14 110.3~205.0 uT Mode 14 110.3~205.0 A/m Mode 14 110.3~205.0 V/m Mode 15 110.3~205.0 uT Mode 15 110.3~205.0 A/m Mode 15 110.3~205.0 V/m Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Position E2 0.145 0.116 43.449 0.147 0.117 44.124 0.139 0.111 41.786 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 13 of 18 FCC ID: 2A4OE-B-19 Charging Battery Level Frequency Range (kHz) Field Strength Mode 13 110.3~205.0 uT Mode 13 110.3~205.0 A/m Mode 13 110.3~205.0 V/m Mode 14 110.3~205.0 uT Mode 14 110.3~205.0 A/m Mode 14 110.3~205.0 V/m Mode 15 110.3~205.0 uT Mode 15 110.3~205.0 A/m Mode 15 110.3~205.0 V/m Measured E-Field Strength Values (V/m) Measured H-Field Strength Values (A/m) Test Position E3 0.149 0.119 44.688 0.143 0.115 43.136 0.138 0.111 41.568 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 20 cm above the top surface from all simultaneous transmitting coils Measured E-Field Strength Values Charging Battery Level Frequency Range (kHz) Field Strength (V/m) Measured H-Field Strength Values (A/m) E1+E2+E3 Mode 13 110.3~205.0 uT 0.436 Mode 13 110.3~205.0 A/m 0.349 Mode 13 110.3~205.0 V/m 130.968 Mode 14 110.3~205.0 uT 0.429 Mode 14 110.3~205.0 A/m 0.344 Mode 14 110.3~205.0 V/m 129.188 Mode 15 110.3~205.0 uT 0.424 Mode 15 110.3~205.0 A/m 0.339 Mode 15 110.3~205.0 V/m 127.477 50% Limits -0.815 307.0 -0.815 307.0 -0.815 307.0 Note:V/m=10(((20lg(A/m*10^6)+51.5)-120)/20) Note:A/m=uT/1.25 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Limits -1.63 614.0 -1.63 614.0 -1.63 614.0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 14 of 18 10. Test Setup Photos Test Position A - Exposure photo from side edge surface-Rear FCC ID: 2A4OE-B-19 15cm (Mode 13-Mode 15) Test Position B - Exposure photo from side edge surface-Left 15cm Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 15 of 18 Test Position C - Exposure photo from side edge surface-Front FCC ID: 2A4OE-B-19 15cm Test Position D - Exposure photo from side edge surface-Right 15cm Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 16 of 18 Test Position E - Exposure photo from top surface (20cm) FCC ID: 2A4OE-B-19 20cm E1 20cm E2 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 17 of 18 FCC ID: 2A4OE-B-19 20cm E3 Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Page 18 of 18 FCC ID: 2A4OE-B-19 11. Conclusion A minimum safety distance of at 15 cm surrounding the device and 20 cm above the top surface of the device is required when the device is charging a smart phone. The detected emissions with a distance of 15 cm surrounding the device and 20 cm above the top surface of the device are below the limitations according to FCC KDB 680106 D01 Section 3. RF Exposure Requirement Clause 3. Report Version 000 Revision History Issue Date May 15, 2023 Revision Content Initial Issue Revised By -- .........................END OF REPORT......................... Shenzhen LCS Compliance Testing Laboratory Ltd. Add:101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity
Related FCC IDs:
- 2A4OE-B-19 - Dongguan Boxinda Electronic Technology Co., LTD 4 in1 Wireless Charger [-B-19] WPS 文字