RF Exposure

FCC ID: O6ZX1

RF Exposure Info

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FCCID_3334668

Bay Area Compliance Laboratories Corp. (Chengdu)

FCC §15.247 (i) & §1.1310 & §2.1091- MAXIMUM PERMISSIBLE
EXPOSURE (MPE)
Applicable Standard
According to subpart 15.247(i)and subpart §1.1310, 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 Maximum Permissible Exposure (MPE) (§1.1310, §2.1091)

(B) Limits for General Population/Uncontrolled Exposure
Frequency Range Electric Field Magnetic Field Power Density Averaging Time
(MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes)
0.3–1.34 614 1.63 *(100) 30
1.34–30 824/f 2.19/f *(180/f²) 30
30–300 27.5 0.073 0.2 30
300–1500 / / f/1500 30
1500–100,000 / / 1.0 30

f = frequency in MHz; * = Plane-wave equivalent power density;

According to §1.1310 and §2.1091 RF exposure is calculated.

Calculated Formulary:

Predication of MPE limit at a given distance
S = PG/4πR² = power density (in appropriate units, e.g. mW/cm2);
P = power input to the antenna (in appropriate units, e.g., mW);
G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the
power gain factor, is normally numeric gain;
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm);

Calculated Data:

Tune-up Evaluation Power MPE
Frequency Antenna Gain
Power Distance Density Limit
(MHz)
(dBi) (numeric) (dBm) (mW) (cm) (mW/cm2) (mW/cm2)
2412-2462 4 2.51 25 316.23 20.00 0.1581 1.0

Note: The maximum tune-up power including tolerance is 25dBm, that declared by manufacturer.

Result: The device meet FCC MPE at 20 cm distance

Report No.: RDG170303007 Page 11 of 59

Document Created: 2017-03-20 15:12:00
Document Modified: 2017-03-20 15:12:00

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