RF Exposure

FCC ID: VLJ-SH039

RF Exposure Info

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FCCID_4408884

                                        FCC ID: VLJ-SH039

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: Left
                    Conduct                    Max       Max
          Channel           Conducte Tune-up tune-up                      Result     SAR
                       ed                              tune-up   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    -3.932    0.40    -4.9±1   -3.9     0.41       <5      0.12627      3.00       YES
  GFSK     2.441    -4.711    0.34    -4.9±1   -3.9     0.41       <5      0.12730      3.00       YES
           2.480     -5.68    0.27    -4.9±1   -3.9     0.41       <5      0.12831      3.00       YES
           2.402    -4.063    0.39    -4.8±1   -3.8     0.42       <5      0.12922      3.00       YES
  π/4-
           2.441    -4.834    0.33    -4.8±1   -3.8     0.42       <5      0.13026      3.00       YES
 DQPSK
           2.480    -5.726    0.27    -4.8±1   -3.8     0.42       <5      0.13130      3.00       YES
           2.402    -4.081    0.39    -4.7±1   -3.7     0.43       <5      0.13223      3.00       YES
 8-DPSK    2.441    -4.791    0.33    -4.7±1   -3.7     0.43       <5      0.13330      3.00       YES
           2.480    -5.677    0.27    -4.7±1   -3.7     0.43       <5      0.13436      3.00       YES


BLE:Left
                    Conduct                    Max       Max
          Channel           Conducte Tune-up tune-up                      Result     SAR
                       ed                              tune-up   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    -3.759    0.42    -3±1     -2       0.63       <5      0.19558      3.00       YES
  GFSK     2.440    -5.405    0.29    -5±1     -4       0.40       <5      0.12437      3.00       YES
           2.480    -6.593    0.22    -5±1     -4       0.40       <5      0.12539      3.00       YES


BT: Right
                    Conduct                    Max       Max
          Channel           Conducte Tune-up tune-up                      Result     SAR
                       ed                              tune-up   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   -3.889    0.41    -4.7±1   -3.7     0.43       <5      0.13223      3.00       YES
  GFSK      2.441    -4.73    0.34    -4.7±1   -3.7     0.43       <5      0.13330      3.00       YES
            2.480   -5.671    0.27    -4.7±1   -3.7     0.43       <5      0.13436      3.00       YES
            2.402   -4.077    0.39    -4.8±1   -3.8     0.42       <5      0.12922      3.00       YES
  π/4-
            2.441   -4.861    0.33    -4.8±1   -3.8     0.42       <5      0.13026      3.00       YES
 DQPSK
            2.480   -5.743    0.27    -4.8±1   -3.8     0.42       <5      0.13130      3.00       YES
            2.402   -4.044    0.39    -4.7±1   -3.7     0.43       <5      0.13223      3.00       YES
 8-DPSK     2.441   -4.751    0.33    -4.7±1   -3.7     0.43       <5      0.13330      3.00       YES
            2.480   -5.695    0.27    -4.7±1   -3.7     0.43       <5      0.13436      3.00       YES


BLE
                    Conduct                    Max       Max
          Channel           Conducte Tune-up tune-up                      Result     SAR
                       ed                              tune-up   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    -4.5     0.35    -4±1     -3       0.50       <5      0.15535      3.00       YES
  GFSK      2.440   -5.427    0.29    -5.8±1   -4.8     0.33       <5      0.10345      3.00       YES
            2.480   -6.711    0.21    -5.8±1   -4.8     0.33       <5      0.10429      3.00       YES


Conclusion:
For the max result : 0.19558 ≤ 3.0 for 1g SAR, No SAR is required.




Signature:                                                               Date: 2019-08-06


NAME AND TITLE (Please print or type): Alex li /Manager
COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E,
Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.



Document Created: 2019-08-07 14:53:04
Document Modified: 2019-08-07 14:53:04

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