The PP141 is a software radio transceiver platform suitable for the development of SDR applications. The PP141 comprises up to sixteen 125MSPS A/D channels and sixteen 500MSPS D/A channels. The combination of Virtex-4 FPGAs and 1GHz C6416T DSPs provides this system with much processing power for large bandwidth signals. A USB and RS232 connections to a host computer enable users to control the system, modify algorithm settings on-the-fly and extract data for further analysis.