For Immediate Release

June 15, 1998
Contact: Jim Peters, William Shumann
Phone: (718) 553-3015, (202) 267-8521


New York – The Federal Aviation Administration (FAA) on June 7 completed installation of software and hardware modifications to the ARSR-4 long range radar at Gibbsboro, New Jersey. These modifications significantly improved the performance of the radar and reduced the occurrence of overlapping beacon replies.

The ARSR-4 was returned to service to the New York Air Route Traffic Control Center in Ronkonkoma, New York, on Tuesday, June 9, following special flight inspections and evaluation and certification of the radar data to the center from the Gibbsboro site. The results from the flight checks indicated significant improvements in the radar.

Additionally, initial reports from air traffic controllers in Ronkonkoma are very positive.

Garbled beacon replies occur when two or more aircraft are at the same approximate range and bearing but at different altitudes. The phenomenon of garbled beacon replies is a limitation common to all secondary radar systems, especially in congested airspace.

In previous situations where garbled beacon replies caused a partial loss of radar data, the primary radar was always able to track the aircraft. The full data block associated with the aircraft in those situations was present on the controller’s radar display.

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