The Defense Advanced Research Projects Agency (DARPA) is seeking innovative solutions through the Small Business Innovation Research (SBIR) program to enhance real-time awareness of the radio frequency (RF) spectrum for military dismounted ground tactical units. The objective is to develop advanced capabilities that allow these units to detect, characterize, and localize RF signals, thereby improving their situational awareness and operational effectiveness in complex environments. This initiative is critical as current technologies limit the ability of ground units to respond swiftly to threats, often relying on delayed feedback from specialized units. Interested parties should prepare an initial white paper outlining their technical approach, with the opportunity opening on February 26, 2025, and closing on March 26, 2025. For more information, visit the official SBIR website at https://www.dodsbirsttr.mil/topics-app/.