RF Exposure

FCC ID: 2ASRT-SCN450

RF Exposure Info

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FCCID_4346725

FCC ID: 2ASRT-SCN450

RF Exposure Evaluation
LIMIT
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)
Electric field
Frequency range Magnetic field strength Power density Averaging time
strength 2
(MHz) (A/m) (mW/cm ) (minutes)
(V/m)
(A) Limits for Occupational/Controlled Exposures
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
300–1500 - - f/300 6
1500–100,000 - - 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
300–1500 - - f/1500 30
1500–100,000 - - 1.0 30
Note: f = frequency in MHz

EVALUATION METHOD
2
Transmission formula: Pd = (Pout*G)/(4*pi*r )
Where
2
Pd = power density in mW/cm , Pout = output power to antenna in mW, G = gain of antenna in linear scale;
Pi = 3.1416, R = distance between observation point and center of the radiator in cm

TEST RESULT

Passed Not Applicable
Note: only show the worse case for wifi 2.4G

Maximum conducted
Type Power Density (mW/cm2) Limit (mW/cm2) Result
output power(dBm)

802.11b 17.85 0.0165 1.0000 Pass

802.11g 14.64 0.0157 1.0000 Pass

802.11n(H20) 13.60 0.0062 1.0000 Pass

802.11n(H40) 12.50 0.0048 1.0000 Pass

Note:
1) The exposure safety distance is less than 20cm.

Document Created: 2019-06-22 12:19:12
Document Modified: 2019-06-22 12:19:12

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