Cheap, accessible commercial-off-the-shelf drones present a serious challenge to defence and security. This is exacerbated by their limited radar signature, making them difficult to detect by traditional air defence systems. As the use of unmanned air systems (UAS) continues to rise and pose greater risks to both military forces and vital national infrastructure, it has become more important than ever to develop a portable, cost-efficient solution that can be easily integrated with existing systems. This is a challenge area that was recognised by West Sussex-based SME LiveLink Aerospace, which pivoted their commercial technology to focus on supporting defence and security.