Spectrum dominance, taking control of the unseen but vital RF spectrum, is now key to taking control of the overall battlefield. To help achieve this, advances in software-defined radio (SDR) technology are moving multi-purpose RF sensing capabilities from bulky systems directly into the hands of the warfighter and onto small drones. Epiq Solutions is a field-proven supplier of radically small SDRs and in this presentation/demonstration, we describe the current art of the possible for RF sensing on the go, and our insights into the near future of portable RF threat identification, localization, and elimination.