MPE

FCC ID: SWX-UAP

RF Exposure Info

Download: PDF

FCCID_1390401

§ 15.247(b) 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 @ 2412 - 2462 MHz; highest
conducted power = 29.68dBm (peak) therefore, Limit for Uncontrolled exposure: 1
mW/cm2 or 10 W/m2

EUT maximum antenna gain = 4 dBi.

Equation from page 18 of OET 65, Edition 97-01

S = PG / 4R2 or R = √PG / 4S

where, S = Power Density (1 mW/cm2)
P = Power Input to antenna (928.966mW)
G = Antenna Gain (2.51 numeric)

S = (928.96*2.51/ 4*3.14*20.02) = (2333.46 / 5024) = 0.46 mW/cm2 @ 20cm separation

Document Created: 2010-12-10 09:01:36
Document Modified: 2010-12-10 09:01:36

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC