RF Exposure report

FCC ID: XHWEWT118

RF Exposure Info

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FCCID_4472849

                                                               Shenzhen BCTC Testing Co., Ltd.

                                      FCC ID: XHWEWT118

Portable device
According to §15.247(e)(i) and §1.1307(b)(1), 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.
According to KDB447498 D01 General RF Exposure Guidance V06
The 1-g SAR 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
  •     Power and distance are rounded to the nearest mW and mm before calculation
  •     The result is rounded to one decimal place for comparison
When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to
determine SAR test exclusion.


BT-BLE:
                    Conduct                    Max       Max
          Channel      ed   Conducte Tune-up tune-up   tune-up            Result        SAR
                                                                 Distance                           SAR test
Modulation Freq.     power   d power power    power     power             calculatio Exclusion
                                                                  (mm)                              exclusion
           (GHz)     (dBm)    (mW)    (dBm)   (dBm)     (mW)              n             threshold
           2.402     4.25     2.66     4±1    5.00      3.16        <5        0.98020      3.00       YES
  GFSK     2.440     4.50     2.82     4±1    5.00      3.16        <5        0.98793      3.00       YES
           2.480     4.73     2.97     4±1    5.00      3.16        <5        0.99599      3.00       YES



BT-EDR

                    Conduct                    Max       Max
          Channel      ed   Conducte Tune-up tune-up   tune-up            Result        SAR
                                                                 Distance                           SAR test
Modulation Freq.     power   d power power    power     power             calculatio Exclusion
                                                                  (mm)                              exclusion
           (GHz)     (dBm)    (mW)    (dBm)   (dBm)     (mW)              n             threshold
           2.402     4.32     2.70     4±1    5.00      3.16        <5        0.98020      3.00       YES
  GFSK     2.441     4.56     2.86     4±1    5.00      3.16        <5        0.98813      3.00       YES
           2.480     4.75     2.99     4±1    5.00      3.16        <5        0.99599      3.00       YES
           2.402     5.45     3.51     6±1    7.00      5.01        <5        1.55352      3.00       YES
  Pi/4
           2.441     5.82     3.82     6±1    7.00      5.01        <5        1.56608      3.00       YES
 DQPSK
           2.480     6.13     4.10     6±1    7.00      5.01        <5        1.57854      3.00       YES
           2.402     5.78     3.78     6±1    7.00      5.01        <5        1.55352      3.00       YES
 8DPSK     2.441     5.94     3.93     6±1    7.00      5.01        <5        1.56608      3.00       YES
           2.480     6.12     4.09     6±1    7.00      5.01        <5        1.57854      3.00       YES


                                                            Shenzhen BCTC Testing Co., Ltd.


WIFI:2.4G

                     Conduct                    Max       Max
           Channel      ed   Conducte Tune-up tune-up   tune-up            Result        SAR
                                                                  Distance                           SAR test
Modulation  Freq.     power   d power power    power     power             calculatio Exclusion
                                                                   (mm)                              exclusion
            (GHz)     (dBm)    (mW)    (dBm)   (dBm)     (mW)              n             threshold
            2.412     9.16     8.24    9±0.5    9.50     8.91       <5         2.76834      3.00       YES
  802.11b   2.437     9.33     8.57    9±0.5    9.50     8.91       <5         2.78264      3.00       YES
            2.462     9.12     8.17    9±0.5    9.50     8.91       <5         2.79688      3.00       YES
            2.412     8.10     6.46   8.5±0.5   9.00     7.94       <5         2.46728      3.00       YES
  802.11g   2.437     8.26     6.70   8.5±0.5   9.00     7.94       <5         2.48003      3.00       YES
            2.462     8.45     7.00   8.5±0.5   9.00     7.94       <5         2.49272      3.00       YES
            2.412     8.55     7.16   8.5±0.5   9.00     7.94       <5         2.46728      3.00       YES
802.11n20   2.437     8.75     7.50   8.5±0.5   9.00     7.94       <5         2.48003      3.00       YES
            2.462     8.87     7.71   8.5±0.5   9.00     7.94       <5         2.49272      3.00       YES
            2.422     8.52     7.11   8.5±0.5   9.00     7.94       <5         2.47239      3.00       YES
802.11n40   2.437     8.84     7.66   8.5±0.5   9.00     7.94       <5         2.48003      3.00       YES
            2.452     8.71     7.43   8.5±0.5   9.00     7.94       <5         2.48766      3.00       YES


Conclusion:
For the max result : 2.79688W/Kg ≤ FCC Limit 3.0 for 1g SAR.



Document Created: 2019-09-26 20:02:41
Document Modified: 2019-09-26 20:02:41

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