Testing Modern Radios

Several techniques are now being employed to ensure efficient communications across the chaotic radio spectrum. Chief among them is Software Defined Radio (SDR), which uses software to dynamically control communications parameters such as the frequency band used, modulation type, data rates, and frequency hopping schemes. The United States Department of Defense is driving the development of SDR technology through its multi-billion-dollar Joint Tactical Radio System (JTRS) program that employs SDRs for applications in a wide range of footprints, from compact, portable units, to vehicle-mounted and shipboard platforms.