MPE report

FCC ID: 2AHIS-WH21BBUS02

RF Exposure Info

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FCCID_4023235

FCC ID: 2AHIS-WH21BBUS02 Maximum Permissible Exposure (MPE) 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) MPE Calculation Method 30 * P * G E2 E (V/m) ＝ Power Density: Pd (W/m²) ＝ d 377 E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to 30 * P * G Pd ＝ 377 * D 2 From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained.

Measurement Result BT: Operation Frequency: 2402MHz~2480MHz Power density limited: 1mW/ cm2 Antenna Type: Cable Antenna WIFI antenna gain: 5.24dBi; R=20cm mW=10^(dBm/10) antenna gain Numeric=10^(dBi/10)= 10^(1/10)=3.34 Power conducted Tune-up Evaluation Max Antenna density Channel power power result at 20cm Limits Freq. modulation tune-up power Gain Power (MHz) (dBm) (dBm) density(mW/cm (mW/cm2) (dBm) (mW) Numeric 2) 2402 3.384 3±1 4 2.511886 3.34 0.00167 1 2441 GFSK 3.958 3±1 4 2.511886 3.34 0.00167 1 2480 3.599 3±1 4 2.511886 3.34 0.00167 1 2402 3.510 3.5±1 4.5 2.818383 3.34 0.00187 1 π/4- 2441 DQPSK, 4.075 3.5±1 4.5 2.818383 3.34 0.00187 1 2480 4.117 3.5±1 4.5 2.818383 3.34 0.00187 1 2402 4.233 4±1 5 3.162278 3.34 0.00210 1 2441 8DPSK 4.841 4±1 5 3.162278 3.34 0.00210 1 2480 4.958 4±1 5 3.162278 3.34 0.00210 1 2402 0.139 1±1 2 1.584893 3.34 0.00105 1 BLE(GFSK 2441 0.031 1±1 2 1.584893 3.34 0.00105 1 ) 2480 0.26 1±1 2 1.584893 3.34 0.00105 1 2.4G WIFI: Operation Frequency: WIFI 802.11b/g/n HT20: 2412-2462MHz, HT40:2422-2452MHz Power density limited: 1mW/ cm2 Antenna Type: FPCB Antenna WIFI antenna gain: 5.24dBi; R=20cm mW=10^(dBm/10) antenna gain Numeric=10^(dBi/10)= 10^(1/10)=3.34 Power conducted Tune-up Evaluation Max Antenna density Channel power power result at 20cm Limits Freq. modulation tune-up power Gain Power (MHz) (dBm) (dBm) density(mW/cm (mW/cm2) (dBm) (mW) Numeric 2) 2412 15.4 16.0±1 17 50.11872 3.34 0.03330 1 2437 802.11b 17 16.0±1 17 50.11872 3.34 0.03330 1 2462 16.4 16.0±1 17 50.11872 3.34 0.03330 1 2412 12.1 13.1±1 14.1 25.70396 3.34 0.01708 1 2437 802.11g 14.1 13.1±1 14.1 25.70396 3.34 0.01708 1 2462 13.4 13.1±1 14.1 25.70396 3.34 0.01708 1 2412 11.6 12.5±1 13.5 22.38721 3.34 0.01488 1 802.11n 2437 13.5 12.5±1 13.5 22.38721 3.34 0.01488 1 H20 2462 12.8 12.5±1 13.5 22.38721 3.34 0.01488 1 2422 11.1 12±1 13 19.95262 3.34 0.01326 1 802.11n 2437 12.6 12±1 13 19.95262 3.34 0.01326 1 H40 2452 11.9 12±1 13 19.95262 3.34 0.01326 1

Conclusion: For the max result : 0.03330≤ 1.0 for Max Power Density, compliance RF exposure.. Signature: Date: 2018-09-25 NAME AND TITLE (Please print or type): Jason Chen/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China


Document Created: 2018-09-26 06:08:34
Document Modified: 2018-09-26 06:08:34
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