Mode S Section Supervisor - Mehdi Rashidifard (609) 485-4763

About the Mode S

The Mode S system provides cooperative (secondary) aircraft surveillance in terminal and en route airspace. Mode S uses selective beacon detection technology to provide target data as digital formatted messages and analog video tailored for automation and display systems. Mode S systems are co-located with Airport Surveillance Radar Model 8 (ASR-8), ASR-9 and the Common Air Route Surveillance Radar. The Mode S system and the co-located non-cooperative (primary) radars are capable of providing correlated radar and beacon reports to National Airspace System (NAS) en route and terminal automation systems at Terminal Radar Approach Control facilities, Air Route Traffic Control Center facilities, the U.S. Department of Defense and other users. Terminal Mode S systems support aircraft separation standards, reduce delays, and improve safety at congested airports. Currently, there are 146 Mode S radar systems consisting of 137 operational and nine support in the NAS that have been in operation since 1989.