RF Exposure

FCC ID: 2ABCB-RPI32

RF Exposure Info

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FCCID_2912429

Report Number: TRA-029073-45-00A 19 RF Exposure As per KDB 447498 47 CFR §§1.1307 and 2.1091 2.1091 Radio frequency radiation exposure evaluation: Portable devices. For purposes of these requirements mobile devices are defined by the FCC as transmitters designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimetres is normally maintained between radiating structures and the body of the user or nearby persons. These devices are normally evaluated for exposure potential with relation to the MPE limits. As the 20cm separation specified under FCC rules may not be achievable under normal operation of the EUT, an RF exposure calculation is needed to show the minimum distance required to be less than 0.6mW/cm2 power density limit, as required under FCC rules Prediction of MPE limit at a given distance Equation from KDB 447498 D01 1 . 64 ERP 1 . 64 ERP S  re - arranged R  4 R 2 S 4 where: S = power density R = distance to the centre of radiation of the antenna ERP = EUT Maximum power Result: Prediction Maximum Distance (R) cm required to be less than Power density limit Frequency ERP 0.6mW/cm2 (S) (mW/cm2) (MHz) (mW) (cm) 2462 118.89 0.6 5.1 RF915 2.0 Page 236 of 236


Document Created: 2019-05-02 06:52:51
Document Modified: 2019-05-02 06:52:51
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