RF Exposure Report

FCC ID: 2APN5SONOFF4CH

RF Exposure Info

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FCCID_3837039

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2APN5SONOFF4CH Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Electric Field Magnetic Field Averaging Time Frequency Power Density (S) Strength (E) Strength (H) 2 |E|2,|H|2or S Range (MHz) (mW/ cm ) (V/m) (A/m) (minutes) 0.3-3.0 614 1.63 (100)* 6 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 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Electric Field Magnetic Field Averaging Time Frequency Power Density (S) Strength (E) Strength (H) 2 |E|2,|H|2 or S Range (MHz) (mW/ cm ) (V/m) (A/m) (minutes) 0.3-1.34 614 1.63 (100)* 30 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 Note: f = frequency in MHz * = Plane-wave equivalent power density IEEE 802.11b max possible output power (PK,conducted)：11±1dbm IEEE 802.11g max possible output power (PK,conducted)：10±1dbm IEEE 802.11n(20) max possible output power (PK,conducted)：10±1dbm The max possible output power (PK,conducted) of All (IEEE 802.11b , IEEE 802.11g, IEEE 802.11n(20)) is IEEE 802.11b.

MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna 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,R=20cm Test Result of RF Exposure Evaluation Max Total Output Total Power Target power tune up power to Antenna Density at Limit W/ tolerance power Result antenna Gain(dBi) R=20cm (mW/cm2) (dBm) toleranc (mW) (mW/cm2) e (dBm) 1.0 802.11b 11±1.0 12 15.85 0.00397 1.0 Pass (1.258)


Document Created: 2019-11-08 17:22:54
Document Modified: 2019-11-08 17:22:54
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