Military communications technologies are beginning to transition from single function “stove pipe” architectures to software defined radio systems (SDR) that can be dynamically reconfigured based on mission requirements. These new SDR platforms must support both legacy waveforms for voice and low-speed data, and new wideband waveforms providing high-speed data, multimedia content, and video conferencing. This shift in paradigm is being driven by interoperability requirements of various military forces. Therefore, the next generation of military radios will present a variety of challenges for the communications systems design engineer.