Hypres Inc. has delivered two Digital-RFTM receiver systems to the U.S. Department of Defense’s Office of Naval Research (ONR). The systems are designed to serve as versatile test beds for evaluating Digital-RF technology for wireless communications applications such as satellite and tactical communications, signals intelligence, electronic warfare, and software defined radio. The ONR will locate the Digital-RF receiver system test beds within facilities at Space and Naval Warfare Systems Command (SPAWAR) and prime contractors as directed by ONR. Hypres has been working closely with SPAWAR on a number of contracts related to the continued development of Digital-RF technology. Work on the two test bed systems was supported through an ONR Small Business Innovative Research (SBIR) Phase 3 contract valued at $650,000, with an exercised option of $75,000 to develop an improved analog-to-digital converter (ADC) chip. Each Digital-RF receiver system features a pre-characterized low-pass single-chip digital-RF receiver, a cryocooler with two temperature stages and appropriate cryopackaging, temperature controller, interface amplifiers, dc bias current source, FPGA-based data acquisition hardware, data acquisition software and graphical user interface, and operating manual. Of note, these systems include an additional temperature-controlled stage to permit integration of a high-temperature superconductor analog filter with Hypres’ low-temperature digital electronics.