MPE 11n

FCC ID: H8N-WLU5040

RF Exposure Info

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FCCID_1279943

FCC TEST REPORT Report No.: FR040706AI Appendix A. Maximum Permissible Exposure Page No. : A1 of A3 FCC ID : H8N-WLU5040

FCC TEST REPORT Report No.: FR040706AI 1 Maximum Permissible Exposure 1.1 Applicable Standard 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 levels in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2 m normally can be maintained between the user and the device. (A) Limits for Occupational / Controlled Exposure Averaging Time Frequency Range Electric Field Magnetic Field Power Density (S) |E|²,|H|² or S (MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²) (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 (B) Limits for General Population / Uncontrolled Exposure Averaging Time Frequency Range Electric Field Magnetic Field Power Density (S) |E|²,|H|² or S (MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²) (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz ; *Plane-wave equivalent power density 1.2 MPE Calculation Method 30  P  G E2 E (V/m) ＝ Power Density: Pd (W/m²) ＝ d 377 E ＝ Electric field (V/m) P ＝ Peak RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 30  P  G 377  d 2 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. Page No. : A2 of A3 FCC ID : H8N-WLU5040

FCC TEST REPORT Report No.: FR040706AI 1.3 Calculated Result and Limit Antenna Type : PIFA Antenna For Single Chain: Max Conducted Power for IEEE 802.11n: 25.48dBm Power Test Min. User Conducted Conducted Gain (dBi) Numeric Gain Density Mode Distance (cm) Power (dBm) Power (mW) (mW/cm2) 5G 20 4.58 2.870781 25.48 353.1832 0.2018 Max Conducted Power for IEEE 802.11n: 23.88dBm Power Test Min. User Conducted Conducted Gain (dBi) Numeric Gain Density Mode Distance (cm) Power (dBm) Power (mW) (mW/cm2) 2.4G 20 1.41 1.383566 23.88 244.3431 0.0673 For Two Chain: Max Conducted Power for IEEE 802.11n: 27.69dBm Power Test Min. User Conducted Conducted Gain (dBi) Numeric Gain Density Mode Distance (cm) Power (dBm) Power (mW) (mW/cm2) 5G 20 4.58 2.870781 27.69 587.4894 0.3357 Max Conducted Power for IEEE 802.11n: 26.94dBm Power Test Min. User Conducted Conducted Gain (dBi) Numeric Gain Density Mode Distance (cm) Power (dBm) Power (mW) (mW/cm2) 2.4G 20 1.41 1.383566 26.94 494.3107 0.1361 Page No. : A3 of A3 FCC ID : H8N-WLU5040


Document Created: 2010-05-10 18:41:54
Document Modified: 2010-05-10 18:41:54
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