An implementation of TEMPEST with GNU Radio. This is basically a re-implementation of Martin Marinov's excelent TempestSDR in GNU Radio (see https://github.com/martinmarinov/TempestSDR). The reason is that I felt it may be easier to maintain and extend. Note however that the basic ideas were imitated, but the synchronization algorithms are different, and some functionalities (particularly in the GUI) are missing.
In addition to the usual toys, they also sell pranks only Satan would try.