RF exposure 2 of 2 (802.11n)

FCC ID: NDD9576111029

RF Exposure Info

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FCCID_1416059

FCC TEST REPORT                        Report No.: FRODO219A!1




      Appendix A. Maximum Permissible Exposure




                                      Page No.   : A1 of A3
                                      FCC ID     : NDD9576111029


FCC TEST REPORT                                                                        Report No.: FRODO219A!1




             ble §

   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




           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




           0.3—1.34               614                   1.63               (100)*                   30
           1.34—30               824/t                 2. 19/f            (180/%)*                  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

   MPE Calculation Method
                                                                         2.

   E (V/m) = V30x PxG                      Power Density: Pd (W/im?) =
                     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

        =30><P><G
   Pd
          377 x d‘
   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     : NDD9576111029


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Document Created: 2011-02-10 15:51:03
Document Modified: 2011-02-10 15:51:03

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