Bruce Perens writes "Ettus Research produces the USRP or Universal Software Radio Peripheral. When used with the GNU Radio software, this device allows the construction of radio receivers and transmitters that are primarily software. It's been used for everything from medical imaging to espionage. USRP is Open Hardware, the design and other data needed to implement it have been published. Matt Ettus today announced that his company has been acquired by National Instruments. Operation will remain separate from NI and Matt says that little will change." Link to Original Source
The reason that every major university maintains a department of
mathematics is that it's cheaper than institutionalizing all those people.