Homemade TEMPEST Receiver
Tom’s Guide writes about home brew TEMPEST receivers:
Today, dirt-cheap technology and free software make it possible for ordinary citizens to run their own Tempest programs and listen to what their own—and their neighbors’—electronic devices are doing.
Elliott, a researcher at Boston-based security company Veracode, showed that an inexpensive USB dongle TV tuner costing about $10 can pick up a broad range of signals, which can be “tuned” and interpreted by software-defined radio (SDR) applications running on a laptop computer.
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