DefenceTalkNorthrop Grumman has designed, developed, integrated and fielded a Mode S upgrade to the Identification Friend or Foe (IFF) interrogator for the Sentry E-3D Airborne Warning and Control System (AWACS) fleet based at Royal Air Force Waddington. The IFF interrogator is a sophisticated airborne defence system that provides a long-range, rapid early warning and detection […]https://www.defencetalk.com/northrop-delivers-mode-s-upgrade-for-the-uks-sentry-awacs-system-59511/