mpe

FCC ID: K7SF7D5301V3

RF Exposure Info

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FCCID_1348720

Compliance Certification Services Inc. Report No.: KS100824A01-RC FCC ID: K7SF7D5301V3 Date of Issue: August 12, 2010 ELECTROMAGNETIC COMPATIBILITY CRITERIA FOR INTENTIONAL RADIATORS § 15.247(b), A8.5 Peak Power Output and RF 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. MPE Limit Calculation: EUT’s operating frequencies @2.412GHz ~ 2.462GHz；2.422GHz ~ 2.452GHz; highest conducted power = 19.12dBm (peak) therefore, 2 2 Limit for Uncontrolled exposure: 1 mW/cm or 10 W/m EUT maximum antenna gain =0.13dBi. Equation from page 18 of OET 65, Edition 97-01 S = PG / 4πR2 or R = √PG / 4πS where, S = Power Density (1 mW/cm2) P = Power Input to antenna (78.34mW) G = Antenna Gain (4.10 numeric) R = (81.66*1.03/ 4*3.14*1.0)1/2= (321.20 / 12.56) 1/2 = 2.59cm separation required in order to comply with the limit of 1 mW/cm2 for Uncontrolled Exposure.


Document Created: 2010-09-23 15:02:34
Document Modified: 2010-09-23 15:02:34
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