RF exposure

FCC ID: 2AFWN-EL043C2

RF Exposure Info

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FCCID_4498935

                              CTK Co., Ltd.
           (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea
                   Tel: +82-31-339-9970       Fax: +82-31-624-9501
                                     www.e-ctk.com



                       RF EXPOSURE EVALUATION
FCC ID : 2AFWN-EL043C2

Standard Requirement

The following FCC Rule Parts and procedures are applicable :

  Part 1.1310 Radiofrequency radiation exposure limits
  Part 2.1091 Radiofrequency radiation exposure evaluation : Mobile device
  KDB447498 D01 v06 Mobile and Portable Devices RF Exposure Procedures and Equipment
    Authorization Policies

  Table 1 below sets forth limits for Maximum Permissible Exposure (MPE) to
  radiofrequency electromagnetic fields.
                   Table 1—Limits for Maximum Permissible Exposure (MPE)
 Frequency range    Electric field strength   Magnetic field strength   Power density   Averaging time
      (MHz)                 (V/m)                     (A/m)               (mW/cm2)        (minutes)
                              (A) Limits for Occupational/Controlled Exposure
     0.3-3.0                 614                       1.63                 *100              6
                                                                                    2
     3.0-30                 1842/f                    4.89/f               *900/f             6
     30-300                  61.4                     0.163                  1.0              6
    300-1,500                                                               f/300             6
  1,500-100,000                                                              5                6
                          (B) Limits for General Population/Uncontrolled Exposure
     0.3-1.34                614                       1.63                 *100             30
                                                                                    2
     1.34-30                824/f                     2.19/f               *180/f            30
     30-300                  27.5                     0.073                  0.2             30
    300-1,500                                                              f/1500            30
  1,500-100,000                                                              1.0             30
 f = frequency in MHz
 * = Plane-wave equivalent power density




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                       CTK Co., Ltd.
         (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea
                 Tel: +82-31-339-9970       Fax: +82-31-624-9501
                                   www.e-ctk.com




MPE calculation

S = EIRP / (4πR2)
Where          S : Power density
               EIRP : P x G
               P : Maximum transmitter power
               G : Antenna gain
               R : distance to the centre of radiation of the antenna

EUT RF Exposure

                P : 3.18 dBm (2.080 mW)
                G : 4.99 (x 3.155)
                R : 20 cm

                S = 0.0013 mW/cm2


Conclusion
This confirms compliance to the required Radio frequency radiation exposure limit.




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Document Created: 2019-11-02 00:55:16
Document Modified: 2019-11-02 00:55:16

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