MPE report

FCC ID: 2AO8RNI-3311

RF Exposure Info

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FCCID_3843737

FCC ID: 2AO8RNI-4501 RF EXPOSURE EVALUATION 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 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R2) Where 2 Pd= Power density in mW/cm Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.14115926 R= distance between observation point and center of the radiator in cm(20cm) 2 Pd the limit of MPE, 1mW/cm . If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached.

Measurement Result WIFI: Operation Frequency: WIFI 802.11b/g/n HT20 : 2412-2462MHz, HT40: 2422-2452MHz 2 Power density limited: 1mW/ cm Antenna Type: Internal Antenna; WIFI antenna gain: 3.68dBi (ANT A); R=20cm mW=10^(dBm/10) antenna gain Numeric=10^(dBi/10)= 10^(3.68/10)=2.33 Evaluation Power conducted Tune-up Max Antenna result at density power power Channel 20cm Limits Freq. modulation tune-up power Gain Power (MHz) (dBm) (dBm) density(m (dBm) (mW) Numeric W/cm2 ) (mW/cm2) Ant A Ant A Ant A Ant A Ant A Ant A 2412 13.8 13±1 14 25.118864 2.33 0.01164 1 2437 802.11b 13.2 13±1 14 25.118864 2.33 0.01164 1 2462 12.8 13±1 14 25.118864 2.33 0.01164 1 2412 12.3 12±1 13 19.952623 2.33 0.00925 1 2437 802.11g 11.8 12±1 13 19.952623 2.33 0.00925 1 2462 11.4 12±1 13 19.952623 2.33 0.00925 1 2412 11.6 11±1 12 15.848932 2.33 0.00735 1 802.11n 2437 11.2 11±1 12 15.848932 2.33 0.00735 1 H20 2462 11.8 11±1 12 15.848932 2.33 0.00735 1 2422 11.2 10.5±1 11.5 14.125375 2.33 0.00655 1 802.11n 2437 H40 10.8 10.5±1 11.5 14.125375 2.33 0.00655 1 2452 10.5 10.5±1 11.5 14.125375 2.33 0.00655 1 Conclusion: For the max result : 0.01164≤ 1.0 for 1g SAR, No SAR is required. Signature: Date: 2018-04-28 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 518126P.R. China.


Document Created: 2018-05-07 09:18:10
Document Modified: 2018-05-07 09:18:10
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