RF EXPO INFO

FCC ID: FSUGG00A4

RF Exposure Info

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FCCID_4485548

FCC ID: FSUGG00A4




                         FCC 47 CFR MPE REPORT




                                 KYE SYSTEMS CORP.

                                    Multimedia Speaker

                            Model Number: SP-HF2800 BT

          Additional Model: SP-HFXXXX XX (X can be 0-9 & A-Z)

                                  FCC ID: FSUGG00A4




Prepared for:   KYE SYSTEMS CORP.
                No. 492, Sec. 5,Chongxin Rd., Sanchong Dist.,New Taipei City 24160,
                Taiwan (R.O.C.)


Prepared By:    EST Technology Co., Ltd.
                Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China
                                  Tel: 86-769-83081888-808




                    Report Number:        ESTE-R1909128
                    Date of Test:         Aug. 06~Sep. 25, 2019
                    Date of Report:       Sep. 26, 2019




                EST Technology Co. ,Ltd         Report No. ESTE-R1909128   Page 1 of 4


 FCC ID: FSUGG00A4


                         Maximum Permissible Exposure
1. Applicable Standards
    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 limit for maximum permissible exposure. In accordance with
    47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as
    a mobile device whereby a distance of 0.2m normally can be maintained
    between the user and the device.


1.1. Limits for Maximum Permissible Exposure (MPE)
(a) Limits for Occupational/Controlled Exposure
  Frequency      Electric Field      Magnetic Field     Power Density (S)       Averaging Times
                                                                        2           2           2
    Range        Strength (E)         Strength (H)           (mW/cm )          ︱E︱ ,︱H︱ or S
    (MHz)           (V/m)                (A/m)                                    (minutes)
   0.3-3.0            614                  1.63                (100)*                   6
    3.0-30           1842/f                4.89/f             (900/f)*                  6
   30-300             61.4                 0.163                 1.0                    6
  300-1500                                                     F/300                    6
 1500-10000                                                       5                     6


(b) Limits for General Population / Uncontrolled Exposure
 Frequency       Electric Field      Magnetic Field     Power Density (S)       Averaging Times
                                                                        2           2           2
Range (MHz)      Strength (E)         Strength (H)           (mW/cm )          ︱E︱ ,︱H︱ or S
                    (V/m)                (A/m)                                    (minutes)
  0.3-1.34            614                  1.63                (100)*                   30
   1.34-30           824/f                 2.19/f             (180/f)*                  30
   30-300            27.5                  0.073                 0.2                    30
  300-1500                                                    F/1500                    30
 1500-10000                                                      1.o                    30
Note: f=frequency in MHz; *Plane-wave equivalent power density




                 EST Technology Co. ,Ltd            Report No. ESTE-R1909128      Page 2 of 4


 FCC ID: FSUGG00A4




1.2. MPE Calculation Method
              30 × P × G                                2    E2
E (V/m) =                        Power Density: Pd (W/m ) =
                  d                                         377
E = Electric Field (V/m)
P = Peak RF output Power (W)
G = EUT Antenna numeric gain (numeric)
d = Separation distance between radiator and human body (m)
The formula can be changed to
       30 × P × G
Pd =
        377 × d 2
From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as
well as the gain of the used antenna, the RF power density can be obtained




                    EST Technology Co. ,Ltd   Report No. ESTE-R1909128    Page 3 of 4


   FCC ID: FSUGG00A4




 2. Conducted Power Result


                                                                            Target Antenna gain
            Frequency Peak output power Peak output power
  Mode                                                                      power
              (MHz)         (dBm)             (mW)                                 (dBi) (Linear)
                                                                           (dBm)
                2402                -0.81              0.8299                0±1      -0.58 0.8750
  GFSK          2441                -0.89              0.8147                0±1      -0.58 0.8750
                2480                -0.89              0.8147                0±1      -0.58 0.8750
                2402                -0.24              0.9462                0±1      -0.58 0.8750
π/4-DQPSK       2441                -0.38              0.9162                0±1      -0.58 0.8750
                2480                -0.36              0.9204                0±1      -0.58 0.8750




 3. Calculated Result and Limit
                                            Antenna gain                  Limited
                                                     Power                    of
                               Target                Density              Power
                                                                                         Test
         Mode                  power                    (S)               Density
                                      (dBi) (Linear)                                    Result
                              (dBm)                    (mW                   (S)
                                                      /cm2)                (mW
                                                                           /cm2)
         GFSK                      1        -0.58 0.8758     0.00022          1        Compiles
     π/4-DQPSK                     1        -0.58 0.8758     0.00022          1        Compiles


                                       End of Test Report




                       EST Technology Co. ,Ltd             Report No. ESTE-R1909128        Page 4 of 4



Document Created: 2019-10-22 03:57:57
Document Modified: 2019-10-22 03:57:57

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