IP-BS-US BLE USB TYPE SCANNER RF Exposure Info People and Technology

People and Technology BLE USB TYPE SCANNER

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                                      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



Worse case WIFI is as below: [2412 MHz    7.23dBm( 5.28 mW )output power]



( 5.28 mW /5mm) ·[√2.412(GHz)]=     1.64 <3.0 for 1-g SAR



BLE 1 is as below: [2402 MHz -0.65dBm( 0.86 mW)output power]



( 0.86 mW /5mm) ·[√2.402(GHz)]=     0.27 <3.0 for 1-g SAR



BLE 2 is as below: [2402 MHz -1.24dBm( 0.752 mW)output power]



(0.752 mW /5mm) ·[√2.402(GHz)]= 0.23 <3.0 for 1-g SAR



1.64+0.27+0.23=2.14 <3.0



Then SAR evaluation is not required



Document Created: 2019-04-29 12:04:51
Document Modified: 2019-04-29 12:04:51
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Document ID4256891
Application IDw7pmvN8X5C9GiaGhPc/spA==
Document DescriptionRF exposure letter
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Permanent ConfidentialNo
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Document TypeRF Exposure Info
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Date Submitted2019-04-28 00:00:00
Date Available2019-04-29 00:00:00
Creation Date2019-04-28 16:22:21
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Document Lastmod2019-04-29 12:04:51
Document TitleRF Exposure Info
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Document Author: Nemko