RF Exposure evaluation

FCC ID: 2AQ3A-HM203

RF Exposure Info

Download: PDF
FCCID_4135264

Shenzhen Zhongjian Nanfang Testing Co., Ltd. Prediction of MPE at a given distance 1. Limits 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) Frequency range Electric field strength Magnetic field strength Power density Averaging time 2 (MHz) (V/m) (A/m) (mW/cm ) (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 2 3.0–30 1842/f 4.89/f *(900/f ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 2 1.34–30 824/f 2.19/f *(180/f ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 2. Test Procedure Equation from page 18 of OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to the antenna G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the centre of radiation of the antenna

Shenzhen Zhongjian Nanfang Testing Co., Ltd. 3. Result Limits for Maximum General Maximum Antenna Antenna Frequency Output Distance Result Population/ Output power Gain Gain 2 (MHz) power (cm) (mW/cm ) Uncontrolled (dBm) (dBi) (numeric) (mW) Exposure 2 (mW/cm ) 2.4G Wi-Fi 802.11b mode 2412.00 14.92 31.05 3.0 2.00 20.00 0.012 1.00 2437.00 15.68 36.98 3.0 2.00 20.00 0.014 1.00 2462.00 14.78 30.06 3.0 2.00 20.00 0.012 1.00 2.4G Wi-Fi 802.11g mode 2412.00 12.58 18.11 3.0 2.00 20.00 0.007 1.00 2437.00 13.40 21.88 3.0 2.00 20.00 0.008 1.00 2462.00 13.63 23.07 3.0 2.00 20.00 0.009 1.00 2.4G Wi-Fi 802.11n(HT20) mode 2412.00 11.76 15.00 3.0 2.00 20.00 0.006 1.00 2437.00 12.49 17.74 3.0 2.00 20.00 0.007 1.00 2462.00 12.68 18.54 3.0 2.00 20.00 0.007 1.00 2.4G Wi-Fi 802.11n(HT40) mode 2422.00 12.52 17.87 3.0 2.00 20.00 0.007 1.00 2437.00 12.83 19.19 3.0 2.00 20.00 0.008 1.00 2452.00 12.97 19.82 3.0 2.00 20.00 0.008 1.00 4. Conclusion The device is exempt from the RF exposure evaluation.


Document Created: 2019-01-18 15:24:28
Document Modified: 2019-01-18 15:24:28
© 2025 FCC.report
This site is not affiliated with or endorsed by the FCC