Deterrence Begins with Detection
In an era of rapidly evolving global threats, Lockheed Martin’s S4R technology delivers the speed, precision, and reliability needed to protect what matters most.
Powered by advanced solid-state gallium-nitride (GaN) technology, S4R enables high-performance S-band radars capable of detecting and discriminating threats at extreme distances. Its wideband capability and advanced software algorithms provide exceptional track quality, combining wide-area search with high-resolution tracking and discrimination. Operators can detect, track, and distinguish real threats from decoys, debris, and countermeasures in real time—strengthening defense systems and enhancing mission readiness.
Built on proven technology fielded in systems such as LRDR, TPY-6, and SPY-7, S4R’s modular radar architecture provides flexible, high-power coverage across land, sea, and space domains. It serves as the first line of detection in layered missile defense, offering unmatched situational awareness and superior target discrimination.
With S4R technology, operators gain decision advantage, multi-domain integration, and the ability to protect critical assets around the world—today and for the future.
Explore S4R Technology - Protecting Today, Preparing for Tomorrow.
