KS-B777 XMI Wireless Headphone RF Exposure Info RF Exposure Letter Shenzhen Kingstar Industrial Co.,Ltd.

Shenzhen Kingstar Industrial Co.,Ltd. XMI Wireless Headphone

Page 1 of KS-B777 XMI Wireless Headphone RF Exposure Info RF Exposure Letter Shenzhen Kingstar Industrial Co.,Ltd.

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
Ant gain 0dBi; so Ant numeric gain=1.0
For Bluetooth BR/EDR
pt=0.473dBm =1.12mW at 2402MHz
So (1.12mW/5mm)x √2.402GHz = 0.347<3
Then SAR evaluation is not required
Download: KS-B777 XMI Wireless Headphone RF Exposure Info RF Exposure Letter Shenzhen Kingstar Industrial Co.,Ltd.
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Document ID3987467
Application IDoec5lCMDPndrPz+TBI3qAw==
Document DescriptionRF Exposure
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize54.37kB (679641 bits)
Date Submitted2018-09-02 00:00:00
Date Available2018-09-02 00:00:00
Creation Date2017-03-09 15:10:28
Producing SoftwareAcrobat Distiller 9.0.0 (Windows)
Document Lastmod2018-08-30 10:34:44
Document TitleRF Exposure Letter
Document CreatorPScript5.dll Version 5.2.2
Document Author: Administrator

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