X26 Wireless speaker RF Exposure Info RF Exposure SHENZHEN COMISO DIGITAL TECHNOLOGY LIMITED

SHENZHEN COMISO DIGITAL TECHNOLOGY LIMITED Wireless speaker

Page 1 of X26 Wireless speaker RF Exposure Info RF Exposure SHENZHEN COMISO DIGITAL TECHNOLOGY LIMITED

FCC ID: 2AEZG-X26
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 = 97.23dBuV/m @3m
Ant gain =0dBi, so Ant numeric gain=1
So pt={ [10(97.23/20)/106 x 3]2/30x1}x1000 mW =1.586mW
So (1.586mW /5mm)x √2.402 = 0.492
Then SAR evaluation is not required
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Document ID3466490
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Document DescriptionRF Exposure
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize3.19kB (39864 bits)
Date Submitted2017-07-15 00:00:00
Date Available2017-07-16 00:00:00
Creation Date2017-07-04 16:36:20
Producing SoftwareAdobe PDF Library 11.0
Document Lastmod2017-07-04 16:36:21
Document TitleRF Exposure
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Document Author: yhx

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