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I'm kinda amazed at how easy it apparently is to intercept even the encrypted GSM traffic. All you need is a Software Defined Radio, available in a USB stick for $20, and a half-dozen open-source packages? I might have to mess with that sometime.

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I think SDR is really amazing technology. I got one of the RTL sticks I think about 2 years ago, for no money ($20 ? or less). Within about a day I was receiving FM radio using GNU Radio on my laptop, and wishing I had a better aerial. Now I have a small discone antenna ($100) and I'm still playing with receiving all sorts of radio broadcasts off and on. So yes you should definitely try it.

This was an intro I wrote back when I started: https://rwmj.wordpress.com/2012/12/05/real-cheap-software-de...

Yeah, it's awesome stuff. Listening to the HAM guys on the local repeaters occasionally makes for some entertainment.

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