03 FCC RF Exposure_DSS

FCC ID: AK8DMPZ1

RF Exposure Info

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FCCID_4022511

                                  RF Exposure / MPE Calculation

           No.                         :    12442164S-C-R1
           Applicant                   :    Sony Corporation
           Type of Equipment           :    Digital Music Player
           Model No.                   :    DMP-Z1
           FCC ID                      :    AK8DMPZ1


Sony Corporation declares that Model: DMP-Z1 complies with FCC radiation exposure
requirement specified in the FCC Rule 2.1091 (for mobile).

RF Exposure Calculations:

The following information provides the minimum separation distance for the highest gain antenna
provided with the “DMP-Z1“ as calculated from (B) Limits for General Population / Uncontrolled
Exposure of TABLE 1- LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) of
§1.1310 Radiofrequency radiation exposure limits.

This calculation is based on the highest EIRP possible from the system,
considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled
exposure limit. The Friis formula used was:

                   PG
          S 
Where
                  4  r2
     P=       3.29 mW (Maximum average output power)
        Time average was used for the above value in consideration of 6-minutes time-averaging
        Burst power average was used for the above value in consideration of worst condition.
     G=      1.549 Numerical Antenna gain; equal to 1.9 dBi
     r=         20 cm (Separation distance)


                                                    2
     Power Density Result S =      0.00101 mW/cm


Even taking into account the tolerance, this device can be satisfied with the limits.



Document Created: 2018-09-25 13:17:57
Document Modified: 2018-09-25 13:17:57

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