The Department of Homeland Security (DHS) is seeking proposals for the topic of "Software Defined Radio for Public Safety (SDR-PS)" as part of their Small Business Innovation Research (SBIR) program. This topic aims to address the communication needs of first responders, such as firefighters, EMS, and law enforcement, who often work in locations without network infrastructure or during congested or unavailable network situations. The current solution of carrying both land mobile radios (LMR) and broadband devices is cumbersome and impractical. The DHS is looking for a novel approach to SDR that provides flexibility, reconfigurability, and interoperability to maximize the value of radio investments. The proposed SDR-PS solution should support communications on and off network infrastructure, allow for critical transmission on multiple bands and systems, address the needs of first responders, and consider extreme operating conditions. The solution should also support multiple open-standards and be capable of upgrading via software. The required solution objectives include wide band transceivers, high power operation, hardware abstraction, compliance with encryption standards, long battery life, ruggedized design, and lower cost. The project duration is not specified, but the ideal target costs should be less than $3k. The application due date is January 18, 2024. For more information, visit the SBIR topic link: link.