Near Field Power Density Total Exposure Ratio Report

FCC ID: ZNFV500EM

RF Exposure Info

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FCCID_4257630

APPENDIX D: TOTAL EXPOSURE RATIO

The total exposure ratio (TER) is calculated by combining all SAR measurements and power density
measurements after normalizing to their respective limits. The general expression is below.
                                                                            𝑁𝑁                                   𝑀𝑀
                                                                                          𝑆𝑆𝑆𝑆𝑆𝑆𝑛𝑛                          𝑆𝑆𝑚𝑚,𝑎𝑎𝑎𝑎𝑎𝑎
                                                             𝑇𝑇𝑇𝑇𝑇𝑇 = �                                     +�                              < 1
                                                                                      𝑆𝑆𝑆𝑆𝑆𝑆𝑛𝑛 , 𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙               𝑆𝑆𝑚𝑚 , 𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙
                                                                           𝑛𝑛=1                                𝑚𝑚=1

The TER shall be less than unity to ensure compliance with the limits.

                                                                          Table D-1
                                                      Total Exposure Ratio (1g SAR and 60 GHz Keyssa)
                      Max Σ                                    Max Σ
                                          1g SAR                         60 GHz Keyssa                                                 Max Σ Reported
                     Reported                               Reported 1g                                           S Limit
                                           Limit                               S                                                       Power Density                Σ Ratio to Limit
                      1g SAR                                SAR Ratio to
                                                                                                                                        Ratio to Limit
                         W/kg               W/kg               Limit         mW/cm²                               mW/cm²
                        1.341               1.600                0.838                   0.013                        1.000                     0.013                       0.851


                                                                         Table D-2
                                                     Total Exposure Ratio (10g SAR and 60 GHz Keyssa)
                       Max Σ                                  Max Σ
                                         10g SAR                        60 GHz Keyssa                                                  Max Σ Reported
                     Reported                              Reported 10g                                           S Limit
                                          Limit                               S                                                        Power Density                Σ Ratio to Limit
                      10g SAR                              SAR Ratio to
                                                                                                                                        Ratio to Limit
                         W/kg               W/kg              Limit         mW/cm²                                mW/cm²
                        1.365               4.000                0.341                   0.013                        1.000                     0.013                       0.354




                                                                                                                                                                                 Approved by:
                                                                                                NEAR-FIELD POWER DENSITY
   FCC ID: ZNFV500EM
                                                                                                   EVALUATION REPORT                                                             Quality Manager


   Test Dates:                                        DUT Type:                                                                                                                  APPENDIX D:
                                                                                                                                                                                 Page 1 of 1
  04/01/2019 – 04/02/2019                             Portable Handset
© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                                             REV 1.0
                                                                                                                                                                                                    03/26/2019
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Document Created: 2019-05-09 17:06:40
Document Modified: 2019-05-09 17:06:40

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