MPE

FCC ID: NDD9565040710

RF Exposure Info

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FCCID_810958

FCC TEST REPORT                          Report No.: FR752402




     Appendix A. Maximum Permissible Exposure




                                     Page No.   : 1 of 3
                                     FCC ID     : NDD9565040710


FCC TEST REPORT                                                                                   Report No.: FR752402


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.



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                                                                                              FCC ID        : NDD9565040710


FCC TEST REPORT                                                                 Report No.: FR752402


1.3. Calculated Result and Limit

    Antenna Type : Dipole
    Max Conducted Power for IEEE 802.11b/g : 16.55dBm
                                                                            Limit of
                                 Peak Output                   Power
     Antenna Gain Antenna Gain               Peak Output                     Power
                                   Power                     Density (S)                   Test Result
         (dBi)     (numeric)                 Power ( mW )                  Density (S)
                                   (dBm)                     (mW/cm²)
                                                                           (mW/cm²)
          3          1.9953        16.5500         45.1856    0.017945          1            Complies


    Antenna Type : Dipole
    Max Conducted Power for IEEE 802.11n : 16.15
                                                                            Limit of
                                 Peak Output                   Power
     Antenna Gain Antenna Gain               Peak Output                     Power
                                   Power                     Density (S)                   Test Result
         (dBi)     (numeric)                 Power ( mW )                  Density (S)
                                   (dBm)                     (mW/cm²)
                                                                           (mW/cm²)
          3          1.9953        16.1500         41.2098    0.016366          1            Complies




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                                                                            FCC ID       : NDD9565040710



Document Created: 2007-07-02 18:05:14
Document Modified: 2007-07-02 18:05:14

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