GNU Radio

Make your own “Universal Software Radio Peripheral” – it can do things like…record every FM station, all at once “The UniversalSoftwareRadioPeripheral (USRP) is a low-cost, high speed implementation of GnuRadioHardware, developed by a team led by MattEttus. You can buy your own USRP(s); see [www.ettus.com]. The price for the motherboard is $550, and basic daughterboards cost $75 each. This setup with four daughterboards cost $850:” – [via] Link & Wired article.