BSI delivers multiple Viper DIS Radios to Rockwell Collins.  The Viper DIS radios will be used to provide a cost effective and realistic radio communications network.  Viper will better enable Rockwell Collins to create and manage complex communication plans including settings for modulation, frequency hopping, pseudo noise, time hop, and cryptography.  Viper also simulate physics based signal degradation, including propagation losses due to frequency spreading loss and Fresnel diffraction over terrain.