MPE

FCC ID: 2AQPCVGT-GC04-CAZ

RF Exposure Info

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FCCID_4461098

                                      FCC ID : 2AQPCVGT-GC04-CAZ


RF EXPOSURE EVALUATION

According to FCC 1.1310: 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)

Limits for Maximum Permissible Exposure (MPE)

 Frequency          Electric Field     Magnetic Field        Power      Average Time
 Range(MHz)         Strength(V/m)      Strength(A/m) Density(mW/cm ) 2

                       (A) Limits for Occupational/Control Exposures
  300-1500                 --                --              F/300           6
 1500-100000               --                --                5             6
                  (B) Limits for General Population/Uncontrol Exposures
  300-1500                 --                --             F/1500           6
 1500-100000               --                --                1             30


    11.1 Friis transmission formula: Pd= (Pout*G)/(4*pi*R2)

Where
Pd= Power density in mW/cm2
Pout=output power to antenna in mW
G= Numeric gain of the antenna relative to isotropic antenna


Pi=3.1416
R= distance between observation point and center of the radiator in cm
Pd the limit of MPE, 1mW/cm2,If we know the maximum gain of the nd total power input to the antenna, through the calculation, we
will know the distance where the MPE limit is reached.


    11.2 Measurement Result

BT RF Exposure Evaluation
Antenna gain: 0 dBi
             Channel    Measured                         Max tune-up   Antenna             Evaluation   Power density
                                     Tune-up power                                 R
Modulation     Freq.     power                             power        Gain                  result       Limits
                                        (dBm)                                    (cm)
              (MHz)      (dBm)                             (dBm)       Numeric             (mW/cm2 )     (mW/cm2 )
               2402      -0.413         -1 to 1               1           1      20          0.0003          1
  GFSK         2440      -0.756         -1 to 1               1           1      20          0.0003          1
               2480      -0.801         -1 to 1               1           1      20          0.0003          1



Document Created: 2019-09-25 16:58:55
Document Modified: 2019-09-25 16:58:55

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