Re: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro Exceeds the FCC's Limit

2020-02-13 Thread Charlie Blackham 
Following a publication of a similar report earlier last year, the FCC tested a 
number of phones and found no issue
https://www.fcc.gov/document/rf-exposure-compliance-test-report


Charlie Blackham
Sulis Consultants Ltd
Tel: +44 (0)7946 624317
Web: https://sulisconsultants.com/
Registered in England and Wales, number 05466247

From: Ken Javor 
Sent: 13 February 2020 21:03
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro 
Exceeds the FCC's Limit

NOT a SAR expert, but this excerpt from the article is demonstrably false:
"More fundamentally, the SAR test doesn't accurately replicate how most people 
interact with their phones. Testing phones from 5 millimeters away from the 
body may seem close, but for anyone carrying their phone in a pocket, the 
distance is closer to 2 millimeters. Because wireless power falls off 
exponentially with distance, what might be a safe amount of RF exposure at 5 
millimeters could?be much higher at 2 millimeters."

Electric field or power density never falls off exponentially and in close it 
does not fall off as 1/r (electric field) or 1/r² (power density). Very close 
in it plateaus out.

Ken Javor
Phone: (256) 650-5261



From: Richard Nute mailto:ri...@ieee.org>>
Reply-To: mailto:ri...@ieee.org>>
Date: Thu, 13 Feb 2020 10:19:35 -0800
To: mailto:EMC-PSTC@LISTSERV.IEEE.ORG>>
Subject: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro Exceeds 
the FCC's Limit



spectrum.ieee.org/tech-talk/telecom/wireless/radio-frequency-exposure-test-iphone-11-pro-double-fcc-limits?utm_source=techalert&utm_medium=email&utm_campaign=techalert-02-13-20&mkt_tok=eyJpIjoiTXpReU5qTmtPV014TXpSaSIsInQiOiJcL1pienhwR2ZRSVwvK3REMVNaR0dRSkdKXC9wYXNkcTVUQVdJTFdXSENvN2xYeGdwQXQ0TzBveWpPTWM5WHBocEg2UXMwVFhOdElsNGR0VmtueFEwODJQVEtnV0gzdDBabzl2b0k2UVp2SU9nYnhOanBYZlkyWTRpZFk5RzdrbkhpaiJ9

Comments from SAR testing experts?

Best regards,
Rich




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Re: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro Exceeds the FCC's Limit

2020-02-13 Thread Ken Javor 
NOT a SAR expert, but this excerpt from the article is demonstrably false:

> “More fundamentally, the SAR test doesn’t accurately replicate how most people
> interact with their phones. Testing phones from 5 millimeters away from the
> body may seem close, but for anyone carrying their phone in a pocket, the
> distance is closer to 2 millimeters. Because wireless power falls off
> exponentially with distance, what might be a safe amount of RF exposure at 5
> millimeters could?be much higher at 2 millimeters.”

Electric field or power density never falls off exponentially and in close
it does not fall off as 1/r (electric field) or 1/r² (power density). Very
close in it plateaus out.

Ken Javor
Phone: (256) 650-5261




From: Richard Nute 
Reply-To: 
Date: Thu, 13 Feb 2020 10:19:35 -0800
To: 
Subject: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro
Exceeds the FCC's Limit

 
 
spectrum.ieee.org/tech-talk/telecom/wireless/radio-frequency-exposure-test-i
phone-11-pro-double-fcc-limits?utm_source=techalert&utm_medium=email&utm_cam
paign=techalert-02-13-20&mkt_tok=eyJpIjoiTXpReU5qTmtPV014TXpSaSIsInQiOiJcL1p
ienhwR2ZRSVwvK3REMVNaR0dRSkdKXC9wYXNkcTVUQVdJTFdXSENvN2xYeGdwQXQ0TzBveWpPTWM
5WHBocEg2UXMwVFhOdElsNGR0VmtueFEwODJQVEtnV0gzdDBabzl2b0k2UVp2SU9nYnhOanBYZlk
yWTRpZFk5RzdrbkhpaiJ9
 
Comments from SAR testing experts?
 
Best regards,
Rich
 
 
 
 
-


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discussion list. To post a message to the list, send your e-mail to


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well-used formats), large files, etc.

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Mike Cantwell 

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formats), large files, etc.

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List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
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