RF Exposure Info

FCC ID: VLJ-CN28BU

RF Exposure Info

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Prüfbericht - Nr.:             50264671 001                                                    Seite 28 von 30
Test Report No.                                                                                Page 28 of 30


6 Safety Human Exposure
6.1 Radio Frequency Exposure Compliance
6.1.1 Electromagnetic Fields
RESULT:                                                                                                 Pass
Test Specification
Test standard                                  :   CFR47 FCC Part 2: Section 2.1091
                                                   CFR47 FCC Part 1: Section 1.1310
                                                   FCC KDB Publication 447498 v06
                                                   FCC KDB Publication 865664 D01 v01r04
                                                   FCC KDB Publication 865664 D02 v01r02
                                                   RSS-102 Issue 5 March 2015


 FCC requirements
FCC requirement: 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 20cm normally can be maintained between the user
and the device.


MPE Calculation Method according to KDB 865664 D01
Power Density: S(mW/cm2)= PG/4πR2 or EIRP/4πR2


Where:
S = power density (mW/cm 2)
P = power input to the antenna (mW)
G = power gain of the antenna in the direction of interest relative to an isotropic radiator
R = distance to the center of radiation of the antenna (cm)


The nominal maximum conducted output power specified:
2.4GHz FHSS: 20.00 dBm
Wi-Fi 802.11 b/g/n: 22.00 dBm


From the peak RF output power, the minimum mobile separation distance, d=20 cm, as well as the antenna
gain (Max. 0.0 dBi for 2.4GHz FHSS, 0.0 dBi for Wi-Fi 802.11 b/g/n), the RF power density can be
calculated as below:


For 2.4GHz FHSS: S(mW/cm2)= PG/4πR2 = 0.005 mW/cm2
For Wi-Fi 802.11 b/g/n: S(mW/cm2)= PG/4πR2 = 0.016 mW/cm2


Limits for Maximum Permissible Exposure (MPE) according to FCC Part 1.1310:
1.0 mW/cm2



Document Created: 2019-06-25 13:42:54
Document Modified: 2019-06-25 13:42:54

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