RF expo info

FCC ID: 2AKCY-RL460WHZ

RF Exposure Info

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FCCID_4450432

FCC ID: 2AKCY-RL460WHZ RF Exposure Evaluation 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) Limits for Maximum Permissible Exposure (MPE) Electric field Frequency range Magnetic field strength Power density Averaging time strength 2 (MHz) (A/m) (mW/cm ) (minutes) (V/m) (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 f = frequency in MHz 2 Friis transmission formula: Pd = (Pout*G)/(4*pi*r ) Where 2 Pd = power density in mW/cm , 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 2 Pd id the limit of MPE, 1 mW/cm . 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. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually.

Test Result of RF Exposure Evaluation Power Density at Output power to 2 Frequency R=20cm Limit (mW/cm ) Result antenna (mW) 2 (mW/cm ) 2405MHz 6.78 0.0018 1.0 PASS 2440MHz 6.81 0.0018 1.0 PASS 2475MHz 6.03 0.0016 1.0 PASS 2480MHz 1.44 0.00038 1.0 PASS Remark: antenna gain=1.24dBi


Document Created: 2019-09-19 20:23:12
Document Modified: 2019-09-19 20:23:12
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