TSC has provided radar systems engineering and interface support to the FAA to investigate the effects of the addition of an Airport Surveillance Radar Version 11 (ASR-11) radar system at O’Hare International Airport (ORD). This analysis identified the potential impacts of the ASR-11 installation on the automation system operations and interfaces at the Elgin TRACON, and resulted in recommendations and suggested hardware modifications required to interface the ASR-11 with the ARTS-IIIE system at the Elgin TRACON. The work was divided into two phases:

· Phase I: Identify and describe the current surveillance automation components and interfaces at the Elgin TRACON
Results: The development of an interface description document describing the interfaces and providing schematics of the automation system component interfaces at the Elgin TRACON.

· Phase II: Detail the potential changes to the automation system operations and interfaces, and hardware modifications that may be required for installation of the ASR-11 at ORD.
Results: Two recommended implementations for interfacing the ASR-11 to the ARTS-IIIE, and three hardware modifications to accommodate the ASR-11 at the Elgin TRACON.