During the HackerSpaceFestival 2008, we installed a room with a TES92 ElectroSmog FieldMeter (50MHz – 3.5GHz) to be used to measure the Magnetic Field from different cellphones during a call. The people were asked to make a call with their cellphone at less than 5 cms from the field meter. The TES 92 had been verified using a spectrum analyzer and modulation generator at 1v/m. The EU regulation usually make the measurement using W/kg.

Please find below the results from the different cellphones :

Cell phone EMF Results

Hackers et sans complexe | InternetActu.net

01net. - Tentative d’intrusion de hackers à Vitry-sur-Seine

The root cause of it was an antenna (a wire in the ground at the exit of the parking lot) which sent a “Lock” signal to 2 of the 4 shopping cart wheels.

If an antenna can do it, I can do it too! The first idea that emerged was to create some hardware to generate such signal… but the hardware didn’t work, so the logic was to test the generated signal against the original signal… and to use a soundcard to record both!

Well… if one soundcard can record, maybe it could be used also to replay??? Replay of course in the adequate coil that serves as an antenna… But hey, wait! What if the coil to be used was the one in the computer’s speaker? Guess what: IT WORKS.

And what about an MP3 File on mobile phones? Guess what again, IT WORKS TOO!!!

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http://www.tmplab.org/subscribe/

Le site du tmplab se prepare aux differentes conferences, workshops et activites performances artistiques en esperant vous y voir nombreux. Les aides sont les bienvenus dans les jours precedents le HSF en suivant les activites depuis l`IRC #frlab sur Freenode.

See ya there.

/tmp/lab.

Space is limited ! So, if you plan to attend, please fill in the subscription form to make sure you will get a place. You will be given a registration number that you should note down and give at the entrance.

The entrance fee is at your discretion, you can give whatever you want. Using the online form, you will be billed via Paypal. The recommended donation is 50 EUR for the whole event, in order to cover the expenses of the conferences.

To subscribe: http://www.tmplab.org/subscribe/

We are looking forward to seeing you at HSF !

The goal of the event is to be a mix of Arts, Crafts, Engineering, Green Tech, Music, Science & Technology.

I was a lucky guy to be here for the Maker Faire in San Mateo, a city in the Silicon Valley between San Francisco & San Jose. The weather was perfect, sunny, perfect temperature.

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The first Hacker Space Fest (HSF) will be held at the /tmp/lab near
Paris, France in June 2008. The goal of this festival is to bring
together people from many cultural and technological backgrounds and
from different Hacker Spaces and Autonomous zones in France and
Europe (and from beyond, if they can attend) to share and show what’s
going on.

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