DeTect’s HARRIER Beyond Visual Line of Sight (BVLOS) system is based on DeTect’s HARRIER Airspace Surveillance Radar technology and provides long-range airspace monitoring with automatic aircraft risk advisories including cooperative and non-cooperative aircraft detection to extend UAV operations beyond line-of-sight (BVLOS). HARRIER Airspace Surveillance Radar technology has been used for UAS ground-based detect and avoid (GBDAA) since 2008 by Unmanned Aerial Systems operators and drone detection defence developersNon-cooperative and cooperative