RF Exposure

FCC ID: 2AL3B-ESP-M

RF Exposure Info

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FCCID_3413972

FCC ID: 2AL3B-ESP-M 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 E UT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the us ed ant enna, the RF power density can be obtained.

Measurement Result WIFI: Operation Frequency: WIFI 802.11b/g/n HT20: 2412-2462MHz, 2 Power density limited: 1mW/ cm Antenna Type: PCB Antenna WIFI antenna gain: 1.0dBi; R=20cm mW=10^(dBm/ 10) antenna gain Numeric=10^(dBi/10)= 10^(1/10)=1.26 Power conducted Tune-up Evaluation result Max Antenna density Channel power power at 20cm Limits Freq. modulation tune-up power Power Gain (MHz) (dBm) (dBm) (dBm) (mW) Numeric density(mW/cm2 (mW/cm2) ) 2412 12.7 12.0±1 13 19.95262 1.12 0.00445 1 2437 802.11b 12.8 12.0±1 13 19.95262 1.12 0.00445 1 2462 13.5 13.0±1 14 25.11886 1.12 0.00560 1 2412 12 12.0±1 13 19.95262 1.12 0.00445 1 2437 802.11g 12.1 12.0±1 13 19.95262 1.12 0.00445 1 2462 12.3 12.0±1 13 19.95262 1.12 0.00445 1 2412 11.8 11.0±1 12 15.84893 1.12 0.00353 1 802.11n 2437 11.9 11.0±1 12 15.84893 1.12 0.00353 1 H20 2462 12 11.0±1 12 15.84893 1.12 0.00353 1 Conclusion: For the max res ult : 0.00560≤ 1.0 for Max Power Density, No SAR is required. Signature: Date: 2017-06-03 NAME AND TITLE (Pleas e print or type): Jason Chen/Manager COMP ANY (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: 2017-06-03 15:57:01
Document Modified: 2017-06-03 15:57:01
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