RF Exposure

FCC ID: WG8A500

RF Exposure Info

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FCCID_1954278

$Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ121129003-00 FCC§ 15.319 (i) &2.1091 - RF RADIATION EXPOSURE Applicable Standard According to FCC §15.319(i) and §1.1307(b)(1), 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) Frequency Electric Field Magnetic Field Power Density Averaging Time Range (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 842/f 2.19/f *(180/f\2\) 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 MPE Calculation Predication of MPE limit at a given distance S = PG/4πR2 Where: S = 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 R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Frequency Antenna Gain Conducted Power Evaluation Power MPE Limit (MHz) Distance Density (mW/cm2) (dBi) (numeric) (dBm) (mW) (cm) (mW/cm2) 1921.536 0 1 17.98 62.81 20 0.01250 1.0 1924.992 0 1 18.06 63.97 20 0.01273 1.0 1928.448 0 1 17.13 51.64 20 0.01027 1.0 Result: The device meets MPE limit at 20 cm distance. FCC Part 15D Page 8 of 49$

Document Created: 2013-04-26 14:58:18
Document Modified: 2013-04-26 14:58:18