MPE

FCC ID: 2AENYE8197

RF Exposure Info

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FCCID_4381776

MPE Calculation Method

Predication of MPE limit at a given distance
Equation from page 19 of OET Bulletin 65, Edition 97-01
𝑬𝑰𝑹𝑷
𝐒 = 𝟒𝝅𝑹𝟐
where:
2
S = power density (in appropriate units, e.g. mW/cm )
EIRP = equivalent (or effective) isotropically radiated power (in appropriate units, e.g., mW)
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm)

As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20
cm from any body part of the user or nearby persons; from the maximum EUT RF output
power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is
2dBi, the RF power density can be obtained. So, the worst result is below:

Max Output Power = 15.98 dBm, Ant gain 3dBi
(18.98/10)
EIRP=PG= (15.98+3) dBm=18.98 dBm=10 mW=79.07mW
𝑬𝑰𝑹𝑷 𝟕𝟗.𝟎𝟕 2 2
So, 𝐒 = = =0.016mW/cm <1.0 mW/cm
𝟒𝝅𝑹𝟐 𝟒𝝅×𝟐𝟎𝟐

So, the SAR evaluation is not required.

Document Created: 2019-07-29 18:27:25
Document Modified: 2019-07-29 18:27:25

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