FAA Selects L3Harris for $300M ADS-B Ground Station Modernization

The Federal Aviation Administration has contracted L3Harris Technologies to upgrade more than 700 Automatic Dependent Surveillance–Broadcast (ADS-B) ground stations across the United States. These stations form the backbone of aircraft position reporting, delivering real-time surveillance data critical to air traffic control operations. The modernization effort aims to enhance the reliability and performance of the national airspace surveillance infrastructure.

L3Harris's upgrade involves installing advanced equipment capable of processing increased data volumes and integrating seamlessly with next-generation air traffic management systems. These improvements are expected to support higher airspace capacity and bolster safety margins by providing more accurate and robust aircraft tracking information to FAA controllers.

ADS-B technology has become mandatory for many classes of aircraft operating in US controlled airspace since 2020, representing a significant advancement over traditional radar. The FAA's expansive network of ground stations continuously receives signals emitted by ADS-B-equipped aircraft, allowing controller facilities to monitor real-time positions with precision. Upgrading this infrastructure is essential to maintain current surveillance capabilities as airborne traffic volumes grow.

This contract marks a substantial investment in the FAA's NextGen modernization program, underscoring the agency's commitment to leveraging state-of-the-art technology for airspace management. By enhancing ground station hardware and software, the FAA can better accommodate evolving demands, such as integrating unmanned aircraft systems and supporting increasingly complex flight trajectories.

The project timeline anticipates staged deployment of upgraded equipment, minimizing disruptions to ongoing surveillance operations. Once completed, the network will provide FAA controllers with higher fidelity tracking, enabling safer and more efficient routing of aircraft. Stakeholders in aviation operations will likely benefit from improved predictability and responsiveness within the national airspace system.

Looking ahead, this modernization will support future advancements in air traffic management and enhance US leadership in aviation technology. It also lays groundwork to adapt to emerging aviation domains, including urban air mobility and commercial spaceflight, which will require reliable, precise surveillance platforms.