How to Hack Radio Frequencies: Hijacking FM Radio with a Raspberry Pi & Wire
In our first part on software-defined radio and signals intelligence, we learned how to set up a radio listening station to find and decode hidden radio signals — just like the hackers who triggered the emergency siren system in Dallas, Texas, probably did. Now that we can hear in the radio spectrum, it's time to explore the possibilities of broadcasting in a radio-connected world. So how did the hackers in Dallas broadcast the code they found to control the sirens and why? Was it a distraction to divert attention from their real goal, a test of a foreign government probing American... more
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