RF Exposure

FCC ID: ZHZDRAGINOMS12

RF Exposure Info

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FCCID_1481812

1. Maximum Permissible Exposure
1.1 Limits
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)
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 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
f = frequency in MHz

MPE Calculation Method

,
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

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.

Document Created: 2019-09-17 21:52:25
Document Modified: 2019-09-17 21:52:25

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