MPE - FCC Rev. 1

FCC ID: SWX-AF2X

RF Exposure Info

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FCCID_2713940

§ 15.247(i) Maximum Permissible Exposure RF Exposure Requirements: §1.1307(b)(1) and §1.1307(b)(2): 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 levels in excess of the Commission’s guidelines. RF Radiation Exposure Limit: §1.1310: As specified in this section, the Maximum Permissible Exposure (MPE) Limit shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in Sec. 1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of Sec. 2.1093 of this chapter. 6 dBi Antenna MPE Limit Calculation: EUT’s operating frequencies @ 2400-2483.5; highest conducted power = 985.37 mW (i.e. 29.936 dBm) (peak) therefore, Limit for Uncontrolled exposure: 1 mW/cm2 or 10 W/m2 EUT maximum antenna gain = 6 dBi. Equation from page 18 of OET 65, Edition 97-01 S = PG / 4ΠR2 where, S = Power Density (1 mW/cm2) P = Power Input to antenna (985.37 mW) G = Antenna Gain (3.981072 numeric) R = Distance to the center of Radiation of the antenna P = 985.37 mW R = 20 cm G = 3.98107 S = 985.37 *3.98107/ 4(3.1416)(20)^2 S = 0.78 mW/cm^2 Therefore, EUT meets the Uncontrolled Exposure limit at 20 cm


Document Created: 2015-08-12 13:01:07
Document Modified: 2015-08-12 13:01:07
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