Re: [PSES] RF shielding in clothing.

Fri, 05 Sep 2014 13:17:04 -0700

Hey Gary, at least this one is relatively mundane but not necessarily benign.  The picture had GPS coordinates in the meta data inserted by the device that took the original picture (geo-tagged).  When you received a copy of the picture that meta data came along with it.  Any picture manipulation software worth its salt can strip out that information, I even think Windows 7 and 8 can do that natively in properties.  Smart phones don't necessarily have that ability built-in though they would have the option to not geo-tag the picture to begin with in the picture taking options somewhere.
 
 
 
-- 
Dan Roman, N.C.E.
Senior Member, IEEE
VP Communications Services
IEEE Product Safety Engineering Society
 
On 09/05/14, Gary McInturff<gary.mcintu...@esterline.com> wrote:
 

Snooping just poked it’s little head into my life recently. There are about a bazillion people monitoring, or capable of monitoring,  you,  Apple, Samsung, NSA, local police, etc. And even though I knew it was being done I posted a picture to social media that was taken by someone else. The app I was using asked where it was taken. Even thought I had never been to the particular location myself and was physically about 300 miles from that location the app listed several places that were nearby and central to where the picture was actually taken. Yoicks!

 

Oh did I mention Microsoft? J (Actually I don’t know about Microsoft Ted – primarily pulling your chain this morning)

 

Gmac

 

From: Ted Eckert [mailto:ted.eck...@microsoft.com]
Sent: Friday, September 05, 2014 9:39 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] RF shielding in clothing.

 

I’m curious if users of these shielding pockets will discover the law of unintended consequences. If a cell phone is placed in the pocket, it will have trouble picking up the signal from any cell towers. The phone will boost its transmit power and my try linking to the towers more frequently. I find that my phone’s battery is drained much faster in areas with fringe reception. Users of this shielded pocket may find that their battery is dead when they retrieve their phone.

 

Of course, this just bring up the question of why people don’t turn off their phone if they are worried about snooping. Even if you use the pocket, your phone has to be pulled out and exposed to be used.

 

On a related note, this article may have been posted before but it has some relation to the subject at hand.

 

http://www.theatlantic.com/health/archive/2012/09/tin-foil-hats-actually-make-it-easier-for-the-government-to-track-your-thoughts/262998/

 

Full details with the test setup and results can be found at the following link.

 

http://web.archive.org/web/20100708230258/http://people.csail.mit.edu/rahimi/helmet/

 

Ted Eckert

Compliance Engineer

Microsoft Corporation

ted.eck...@microsoft.com

 

The opinions expressed are my own and do not necessarily reflect those of my employer.

 

 

-----Original Message-----
From: John Woodgate [mailto:j...@jmwa.demon.co.uk]
Sent: Friday, September 5, 2014 7:28 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] RF shielding in clothing.

 

In message <20140905135401.6037649.303.13...@gmail.com>, dated Fri, 5 Sep 2014, Doug Powell <doug...@gmail.com> writes:

 

>Ah yes,

> 

>But can coax cable with a double layer shield claim that much

>attenuation at all frequencies?

 

I doubt that braided shields made of such fine filaments would be mechanically strong enough. Semi-rigid coax does pretty well, I believe, with one solid shield.

--

OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Quid faciamus nisi sit?

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

 

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