RF Exposure

FCC ID: 2AC7Z-ESPEYE

RF Exposure Info

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FCCID_4210344

Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RSHD181229001-00B FCC §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.247 (i) and subpart 1.1310, 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. 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 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: Frequency Maximum Tune-up Evaluation Power Antenna Gain Conducted Power MPE Limit Mode Range Distance Density (mW/cm2) (MHz) (dBi) (numeric) (dBm) (mW) (cm) (mW/cm2) 2412-2462 2.98 1.99 26.00 398.11 20 0.1576 1.00 Wi-Fi 2422-2452 2.98 1.99 24.00 251.19 20 0.0994 1.00 BLE 2402-2480 2.98 1.99 2.50 1.78 20 0.0007 1.00 Bluetooth 2402-2480 2.98 1.99 6.00 3.98 20 0.0016 1.00 Note: Wi-Fi and BT/BLE cannot transmit simultaneously Conclusion: The EUT meets exemption requirement- RF exposure evaluation greater than 20cm distance specified in § 2.1091. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by§ 2.1093. FCC Part 15.247 Page 15 of 86


Document Created: 2019-03-24 18:04:22
Document Modified: 2019-03-24 18:04:22
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