Universal Software Radio Peripheral
http://en.wikipedia.org/wiki/Universal_ ... Peripheral (http://en.wikipedia.org/wiki/Universal_Software_Radio_Peripheral)
The Universal Software Radio Peripheral (USRP) is a high-speed USB-based board for making software radios.
The USRP is intended to be a comparatively inexpensive hardware device facilitating the building of a software radio. The USRP has an open design[dubious – discuss], with freely available schematics (provided approved tools are used for downloading) and drivers, and free software to integrate with GNU Radio. It is also designed to be flexible, allowing developers to make their own daughterboards for specific needs with regard to connectors, different frequency bands, etc.
The USRP is developed by a team led by Matt Ettus.
Its also horrendously expensive for what it is. The Perseus is just as capable and available at much lower cost.
http://www.woodboxradio.com/it/perseus.html (http://www.woodboxradio.com/it/perseus.html)