MPE

FCC ID: 2ASWF-0411

RF Exposure Info

Download: PDF

                           FCC ID: 2ASWF-0411
Maximum Permissible Exposure (MPE)
According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the
environment impact of human exposure to radio frequency(RF) Radiation as specified in
§1.1307(b)

Limits for Maximum Permissible Exposure (MPE)




MPE Calculation Method

             30 * P * G                                                  E2
E (V/m) =                                 Power Density: Pd (W/m²) =
                 d                                                       377
E = Electric field (V/m)
P = Average 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 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.


Measurement Result


BT:
Operation Frequency: BT: 2402MHz~2480MHz
Power density limited: 1mW/ cm2
Antenna Type: PCB Antenna
Antenna gain: 0 dBi,
R=20cm
Bluetooth DTS:

                                                                                                                             Power
                            conducted   conducted                                                              Evaluation
                                                                          Max                   Antenna                      density
   Channel                    power       power       Tune-up                                                    result
               modulation                                                                                                    Limits
 Freq. (MHz)                                        power (dBm)    tune-up power                 Gain
                             (dBm)        (mW)                                                                 (mW/cm2 )    (mW/cm2)
                                                                  (dBm)         (mW)    (dBi)       Numeric
    2402                     4.130       2.588         5±1         6.0          3.981   0.00            1.00    0.00079        1
    2441         GFSK        5.300       3.388         5±1         6.0          3.981   0.00            1.00    0.00079        1
    2480                     4.840       3.048         5±1         6.0          3.981   0.00            1.00    0.00079        1
    2402                     1.750       1.496        2.5±1        3.5          2.239   0.00            1.00    0.00045        1
                π/4-
    2441
               DQPSK
                             3.040       2.014        2.5±1        3.5          2.239   0.00            1.00    0.00045        1
    2480                     2.530       1.791        2.5±1        3.5          2.239   0.00            1.00    0.00045        1
    2402                     2.140       1.637        2.5±1        3.5          2.239   0.00            1.00    0.00045        1
    2441        8DPSK        3.390       2.183        2.5±1        3.5          2.239   0.00            1.00    0.00045        1
    2480                     2.880       1.941        2.5±1        3.5          2.239   0.00            1.00    0.00045        1




Conclusion:
For the max result: 0.00079≤ 1.0 for Max Power Density, Compliance the RF Exposure.




Signature:                                                                                      Date: 2019/4/20


NAME AND TITLE (Please print or type): Murphy.Chen /Manager
COMPANY (Please print or type): Dongguan NTEK Testing Technology Co., Ltd./ Building 3,
Meisaidaxin Park, Keji 8th Road, Songshan Lake High-Tech Industrial Development Zone,
Dongguan, Guangdong, China



Document Created: 2019-05-14 11:31:45
Document Modified: 2019-05-14 11:31:45

© 2019 FCC.report
This site is not affiliated with or endorsed by the FCC