The PP111 is a software radio transceiver PCI card dedicated to the development of SDR applications. The PP111 comprises two 125MSPS A/D channels and two 500MSPS D/A channels. The combination of a Virtex-4, Virtex-5 FPGA and embedded PowerPC resources provide this system with much processing power for muti-band signals. Communication with a host computer via the PCI bus enables users to control the card, modify algorithm settings on-the-fly and extract data for further analysis or real-time recording.