UWB RF Exposure

FCC ID: 2ADAL-VR7401

RF Exposure Info

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FCCID_4434104

                                     RF EXPOSURE EXHIBIT
      EQUIPMENT UNDER TEST:         UWB DATA COLLECTION DEVICE
             MODEL NUMBER:          VR7401
                    FCC ID:         2ADAL-VR7401


Integrated power between 10dB points: 0.0327 mW (-14.86 dBm)




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                                        RF EXPOSURE EXHIBIT
Duty Cycle:    0.577%
Calculation:   Time ‘On’ / (Time ‘On’ + Time ‘Off’)
               0.577 ms / (0.577 ms + 99.4 ms) = 0.577%
                                                      Time ‘On’




                                                      Total Time




                            Parameter                              Observed Value
                            Maximum transmitter on time            0.577 ms
                            Mean transmitter off time              ≥ 99.4 ms



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                                                             RF EXPOSURE EXHIBIT

Source based time-average power: 0.0001558 mW (-37.25 dBm)
Calculation:           Integrated power * Duty Cycle
                       0.033 mW * 0.577% = 0.0001885 mW




SAR Exclusion: SAR testing is not required

                                                    447498 D01 General RF Exposure Guidance v06
                                                                    SAR test exclusion calculations
                            Section 4.3: General SAR test exclusion guidance / Section 4.3.1: Standalone SAR test exclusion considerations
                                               Select
                                    Input                Unit correction
                                               Units
                   Max Power:       -37.25      dBm       0.000188365
     Min separation distance:         0          mm                   0
                 Frequency, f:        4          GHz              4000

              Value reference         Values used
                                                         Reference number definition
                      Number         for Calculation
                           v1         0         mW       [max. power of channel, including tune-up tolerance, mW] 'Rounded to nearest mW
                             v2       5          mm      [min. test separation distance, mm] 'Rounded to nearest mm
                             v3     2.000                [√f(GHz)]

a) For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following:
   [(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,
       1g Exclusion Threshold:      7.5         mW       <== 3 * v2 / v3
       10g Exlusion Threshold:       18.8        mW      <== 7.5 * v2 / v3

                                  The EUT max power is BELOW the threshold. SAR Testing is NOT required for Body applications
             Conclusions:         The EUT max power is BELOW the threshold. SAR Testing is NOT required for Extremity applications




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Document Created: 2019-09-05 12:14:18
Document Modified: 2019-09-05 12:14:18

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