RF exposure

FCC ID: NKR-RFRBCARD

RF Exposure Info

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FCCID_1328411

Maximum Permissible Exposure (MPE) Evaluation 1. Limits 2. Estimation of compliance boundary For the final determination of the compliance boundary, the method for far-field calculation is used. PG S= 4πR 2 Where: S = power density (in appropriate units, e.g. mW/cm2) P = power input to the antenna (in appropriate units, e.g., mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) The information of the EUT: Frequency range: 2412MHz to 2462MHz Maximum Power input to antenna: 2412MHz, 24.41dBm (276mW) Max Antenna gain: 2 dBi (1.58) The overall exposure at 20 cm from the EUT: 276 × 1.58 S= 2 = 0.087 mW / cm 2 4 × 20 × π The S at the position which is 20cm far from the EUT is smaller than the uncontrolled exposure limit line. So the EUT also complies with the limits for occupational/controlled exposure.


Document Created: 2010-08-18 14:10:03
Document Modified: 2010-08-18 14:10:03
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