RF Exposure

FCC ID: P4Q-N584M

RF Exposure Info

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FCCID_3518966

                                                                   FCC ID: P4Q-N584M

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

Field strength = 94.17dBuV/m @3m
Ant gain =0.4dBi, so Ant numeric gain=1.1

So pt={ [10(94.17/20)/106 x 3]2/30x1.1}x1000 mW =0.715mW
So (0.715mW /5mm)x √2.480 = 0.225<3

Then SAR evaluation is not required



Document Created: 2017-08-18 15:47:36
Document Modified: 2017-08-18 15:47:36

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