RF Exposure evaluation

FCC ID: 2AOVX-S4

RF Exposure Info

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FCCID_3959851

RF Exposure evaluation

According to 447498 D01 General RF Exposure Guidance v05
The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at
test separation distances≤ 50 mm are determined by:
[(max. power of channel, including tune-up tolerance, mW)/(min. test
separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for
10-g extremity SAR, where
 f(GHz) is the RF channel transmit frequency in GHz
 Power and distance are rounded to the nearest mW and mm before
calculation
 The result is rounded to one decimal place for comparison

eirp = pt x gt = (EXd)2/30
where:
pt = transmitter output power in watts,
gt = numeric gain of the transmitting antenna (unitless),
E = electric field strength in V/m, --- 10((dBuV/m)/20)/106
d = measurement distance in meters (m)---3m
So pt = (EXd)2/30 x gt

Antenna gain= 0dBi ; so numerical antenna gain= 1

Field strength =85.85dBuV/m @3m
So pt ={ [10(85.85/20)/106 x3]2/30X1}x1000 =0.115 mW

So (0.115mW/5mm)x √0.43392GHz = 0.0152 < 3

Document Created: 2018-08-09 22:40:02
Document Modified: 2018-08-09 22:40:02

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