MPE

FCC ID: 2ADBM-LS9AC11DBT

RF Exposure Info

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FCCID_3586812

                             Prediction of MPE at a given distance
    1. Limits
The criteria listed in the following table shall be used to evaluate the environment impact of human exposure
to radio frequency (RF) radiation as specified in 1.1307(b)
 Frequency range       Electric field strength    Magnetic field strength     Power density        Averaging time
                                                                                               2
       (MHz)                   (V/m)                       (A/m)                (mW/cm )             (minutes)
                               (A) Limits for Occupational/Controlled Exposures
      0.3–3.0                    614                       1.63                   *(100)                 6
                                                                                           2
      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
                                                                                           2
      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


 2. Test Procedure
Equation from page 18 of OET Bulletin 65, Edition 97-01




      Where:
             S = power density
             P = power input to the antenna
             G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator
             R = distance to the centre of radiation of the antenna


3. Result
                                                                                             Limits for
              Maximum      Maximum                                                            General
                                        Antenna          Antenna
Frequency      Output        Output                                Distance    Result       Population/
                                          Gain            Gain                          2
  (MHz)         power        power                                  (cm)      (mW/cm )      Uncontrolled
                                          (dBi)       (numeric)
                (dBm)        (mW)                                                            Exposure
                                                                                                     2
                                                                                             (mW/cm )
                                                  5G WiFi
                                       Band 1 for 802.11a mode
  5200          13.82        24.10         5.9            3.89       20        0.0187            1
                                       Band 2 for 802.11a mode
  5260          13.11        20.47         5.9            3.89       20        0.0158            1
                                       Band 3 for 802.11a mode
  5700          12.79        19.01         5.9            3.89       20        0.0147            1
                                       Band 4 for 802.11a mode
  5745          13.81        24.04         5.9            3.89       20        0.0186            1
                                                 2.4G WIFI
                                            802.11b mode
  2412          15.20        33.11         3.5            2.24       20        0.0147            1
                                                    BT
  2402          7.19          5.24         3.5            2.24       20        0.0023            1
                                                   BLE
  2402          6.57          4.54         3.5            2.24       20        0.0020            1


Note: Just the worst case mode was shown in report.



Document Created: 2017-09-16 16:58:08
Document Modified: 2017-09-16 16:58:08

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