RF Exposure Info

FCC ID: 2AULFGSWD-SW01

RF Exposure Info

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FCCID_4504689

HaAinc Korea Company Wireless charger FCC ID : 2AULFGSWD-SW01 RF Exposure Requirement 1.Limits According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Electric Field Magnetic Field Power Density Average Time Range (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (Minutes) (A) Limits for Occupational/ Control Exposures 300 - 1500 - - F/300 6 1500 - 100,000 - - 5 6 (B) Limits for General Population/ Uncontrolled Exposures 300 - 1500 - - F/1500 6 1500 - 100,000 - - 1 30 F = Frequency in MHz Friis Formula Friis transmission formula: Pd = (Pout*G)/(4*pi*r2) Where Pd = power density in mW/ cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/ cm2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. 2.Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. The temperature and related humidity: 23 ℃ and 42 ％ R.H. RF Exposure Report Issue Date : September 27, 2019

HaAinc Korea Company Wireless charger FCC ID : 2AULFGSWD-SW01 3.Test Result of RF Exposure Evaluation 3.1 RF Exposure Evaluation. - Mode : LE : RF Specification of EUT Operating mode Frequency RF Output Power (dBm) LE (GFSK) 2402 ~ 2480 MHz 2.4 1) Maximum RF Power = 2.4 dBm= 1.74 mW 2) 1.74/(4*3.14*400) = 0.000346 3) Result of Evaluation Power Density at R = Frequency Band (MHz) Maximum RF Power (mW) 2 20 cm (mW/ cm ) 2402 ~ 2480 1.74 0.000346 4) Test Result : Pass RF Exposure Report Issue Date : September 27, 2019

HaAinc Korea Company Wireless charger FCC ID : 2AULFGSWD-SW01 - Mode : WPT : RF Specification of EUT Operating mode Frequency RF Output Power (W) WPT 117.82 ~ 146.62 kHz 10 W 1) Power transfer frequency is less than 1MHz Frequency Limit Result 117.82 ~ 146.62 < 1MHz Pass 2) Output power from each primary coil is less than or equal to 15 watts. RF Output power Limit Result 10 W ≤ 15 W Pass (3) The transfer system includes only single primary and secondary coils. This includes charging systems that may have multiple primary coils and clients that are able to detect and allow coupling only between individual pairs of coils. - This EUT use only single primary coils. (the number of coils has two.) - Pass (4) Client device is placed directly in contact with the transmitter. - This EUT is a power charger that operates only in direct contact with the client device. - Pass (5) Mobile exposure conditions only (portable exposure conditions are not covered by this exclusion). - N/A RF Exposure Report Issue Date : September 27, 2019

HaAinc Korea Company Wireless charger FCC ID : 2AULFGSWD-SW01 (6) The aggregate 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. 6-1) Test Limit 6-2) Description of Test Setup RF Exposure Report Issue Date : September 27, 2019

HaAinc Korea Company Wireless charger FCC ID : 2AULFGSWD-SW01 6-4) Test result : Pass E-Field Strength at 15 cm surrounding the EUT and 15cm above the surface of the EUT Test Test Test Test Test Test Frequency 50% Bettery Position Position Position Position Position Position Limit Range Limit Result Power (Top) (Bottom) (Left) (Right) (Front) (Rear) (V/m) (kHz) (V/m) (V/m) (V/m) (V/m) (V/m) (V/m) (V/m) 117.82 ~ 1% 9.16 3.67 3.12 3.11 15.26 9.33 307 614 Pass 146.62 117.82 ~ 50 % 9.37 3.71 3.23 3.25 15.77 9.48 307 614 Pass 146.62 117.82 ~ 99 % 9.51 3.89 3.28 3.29 15.98 9.64 307 614 Pass 146.62 Stand- 117.82 ~ 9.14 3.52 3.19 3.12 15.13 9.27 307 614 Pass by 146.62 H-Field Strength at 15 cm surrounding the EUT and 15cm above the surface of the EUT Test Test Test Test Test Test Frequency 50% Bettery Position Position Position Position Position Position Limit Range Limit Result Power (Top) (Bottom) (Left) (Right) (Front) (Rear) (A/m) (kHz) (A/m) (A/m) (A/m) (V/m) (V/m) (V/m) (V/m) 117.82 ~ 1% 0.527 0.352 0.272 0.311 0.397 0.664 0.815 1.63 Pass 146.62 117.82 ~ 50 % 0.613 0.384 0.275 0.332 0.415 0.725 0.815 1.63 Pass 146.62 117.82 ~ 99 % 0.625 0.401 0.283 0.347 0.442 0.756 0.815 1.63 Pass 146.62 Stand- 117.82 ~ 0.511 0.349 0.270 0.316 0.389 0.657 0.815 1.63 Pass by 146.62 3.2 Total test result. - Pass Note : The power density Pd (4th column) at a distance of 20 cm calculated from the Friis transmission formula is far below the limit of 1 mW/ cm2 . RF Exposure Report Issue Date : September 27, 2019


Document Created: 2019-11-05 15:43:14
Document Modified: 2019-11-05 15:43:14
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