RF Exposure

FCC ID: V7THG305-GP

RF Exposure Info

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FCCID_3536598

Bay Area Compliance Laboratories Corp. (Dongguan)                             Report No.: RDG170817001-00


FCC §15.247 (i) & §1.1310 & §2.1091- MAXIMUM PERMISSIBLE
EXPOSURE (MPE)
Applicable Standard
According to subpart 15.247(i)and subpart §1.1310, 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 level in
excess of the Commission’s guidelines.

Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091)

                          (B) Limits for General Population/Uncontrolled Exposure
Frequency Range         Electric Field       Magnetic Field        Power Density            Averaging Time
     (MHz)             Strength (V/m)        Strength (A/m)           (mW/cm2)                (minutes)
    0.3–1.34                 614                   1.63                 *(100)                    30
    1.34–30                 824/f                 2.19/f               *(180/f²)                  30
    30–300                   27.5                 0.073                   0.2                     30
   300–1500                   /                      /                  f/1500                    30
 1500–100,000                 /                      /                    1.0                     30

f = frequency in MHz; * = Plane-wave equivalent power density;

According to §1.1310 and §2.1091 RF exposure is calculated.


Calculation formula:
Prediction of power density at the distance of the applicable MPE limit
S = PG/4R² = power density (in appropriate units, e.g. mW/cm2);
P = power input to the antenna (in appropriate units, e.g., mW);
G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain
factor, is normally numeric gain;
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm);


Calculated Data:

                                               Conducted
                                              output power      Evaluation       Power         MPE
       Frequency        Antenna Gain
                                            including Tune-      Distance       Density        Limit
         (MHz)
                                              up Tolerance        (cm)         (mW/cm2)      (mW/cm2)
                      (dBi)    (numeric)    (dBm)     (mW)
       2412-2462        5         3.16        28      630.96       20.00         0.3971          1.0

Result: The device meet FCC MPE at 20 cm distance




FCC Part 15.247                                                                                  Page 12 of 60



Document Created: 2017-08-28 22:29:42
Document Modified: 2017-08-28 22:29:42

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