[cma-l] Singing posters and talking shirts stealing from your FM signal...

[Alex Gray, Two Lochs Radio]

Exactly Ian -    I guess he means ".without significantly affecting the
original transmissions." or perhaps he's found some new laws of physics. 

 

Interesting technique though if you read the full details. Reminds me of the
cunning Russian passively bugged 'friendship' emblem that sat in the US
Embassy in Moscow for some time. Also the (apocryphal I think) tale of the
farmer prosecuted for lighting his house using power tapped off the near
field of the Droitwich log wave transmitter.

 

Alex

 

From: cma-l-bounces at mailman.commedia.org.uk
[mailto:cma-l-bounces at mailman.commedia.org.uk] On Behalf Of Ian Hickling
Sent: 08 March 2017 22:37
To: The Community Media Association Discussion List
<cma-l at mailman.commedia.org.uk>
Subject: Re: [cma-l] Singing posters and talking shirts stealing from your
FM signal...

 

".......we developed a new way of communication where we send information by
reflecting ambient FM radio signals that are already in the air, which
consumes close to zero power." The UW team has - for the first time -
demonstrated how to apply a technique called "backscattering" to outdoor FM
radio signals. The new system transmits messages by reflecting and encoding
audio and data in these signals that are ubiquitous in urban environments,
without affecting the original radio transmissions......"
Oh yeah? 

Ian Hickling

Partner





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