MPE

FCC ID: ZJPCK308

RF Exposure Info

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FCCID_3193144

                         RF Exposure evaluation


According to KDB447498D01 General RF Exposure Guidance v06
4.3.1. Standalone SAR test exclusion considerations
Unless specifically required by the published RF exposure KDB procedures,
standalone 1-g head or body and 10-g extremity SAR evaluation for general
population exposure conditions, by measurement or numerical simulation, is not
required when the corresponding SAR Exclusion Threshold condition, listed below,
is satisfied.

The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test
separation distances ≤ 50 mm are determined by:

[(max. power of channel, including tune-up tolerance, mW)/(min. test separation
distance, mm)] ·
[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,
where f(GHz) is the RF channel transmit frequency in GHz
                                                                                17
  Power and distance are rounded to the nearest mW and mm before calculation
  The result is rounded to one decimal place for comparison
The test exclusions are applicable only when the minimum test separation distance
is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When
the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to
determine SAR test exclusion


       eirp = pt x gt = (E x d)2/30
       where:
       pt = transmitter output power in watts,
       gt = numeric gain of the transmitting antenna (unitless),
                                                        ((dBuV/m)/20)   6
       E = electric field strength in V/m,      ---10               /10 ,,
       d = measurement distance in meters (m)---3m,
       So pt = (E x d)2/30 x gt


       The worst case (refer to report CK308 FCC16104070A 4.0) is below:
       For 2.4G wireless:

           Pmax      Pmax      Distance                        Calculati     Standalone SAR
                                                                                               SAR test
Mode                                           f(GHz)             on          test exclusion
           (dBm)      (mW)        (mm)                                                         exclusion
                                                                Result          Threshold
  BT        0.64      1.16        <5.00        2.450             0.36              3.00          Yes
       0.36<3.0 for 1-g SAR
       So the SAR report is not required.

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Document Created: 2016-11-11 09:25:41
Document Modified: 2016-11-11 09:25:41

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