RF Exposure

FCC ID: O6ZT3

RF Exposure Info

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FCCID_3564394

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG170604001-00B FCC §15.407 (f) & §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.407(f)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. Calculation formula: Prediction of power density at the distance of the applicable MPE limit S = PG/4R² = 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); For simultaneously transmit system, the calculated power density should comply with: FCC Part 15.407 Page 13 of 97

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG170604001-00B Calculated Data: Conducted output power Evaluation Power MPE Frequency Antenna Gain including Tune- Distance Density Limit (MHz) up Tolerance (cm) (mW/cm2) (mW/cm2) (dBi) (numeric) (dBm) (mW) 2412-2462 4 2.51 28 630.96 20.00 0.315 1.0 5180-5825 4 2.51 21 125.89 20.00 0.063 1.0 The 2.4GHz band and 5GHz band can transmit simultaneously: =S2.4/Slimit- 2.4 + S5/Slimit- 5 =0.315/1+0.063/1 =0.378 < 1.0 Result: The device meet FCC MPE at 20 cm distance FCC Part 15.407 Page 14 of 97


Document Created: 2017-09-15 14:05:07
Document Modified: 2017-09-15 14:05:07
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