ARSR-4

ARSR-4 Long Range 3D Radar Set - A Long Range 3D Radar set built by Westinghouse and integrated into the FAA Air Traffic Control (ATC) system and jointly used by the USAF for Air Defense as a part of the JSS System. Approximate cost was $6.5 million each, total program cost was $800 million with one half paid by USAF. Forty-four systems were purchased and installed. The first set was commissioned on 12 April 1996 at Tamiami, Florida. The last set was accepted at Ajo, Arizona in July 1999. The ARSR-4 radar sites were primarily arranged along the U.S. Conus border to form a perimeter defense. The interior radar sites remained equipped with legacy radars until they were all upgraded by 2015 with Common Air Route Surveillance Radars (CARSR). The ARSR-4 was designed in the late 1980s to replace then existing FPS-20/60 series vacuum-tube JSS System radar sets. The ARSR-4 is a solid state 3D radar with a limited ability to report aircraft altitudes. North Truro Air Force Station Site, FAA ARSR-4 Radar. ARSR-4 3D Radar ARSR-4 Radar Set Antenna. ARSR-4 Functional Diagram. ARSR-4 3D Radar Element Value Notes Nomenclature ARSR-4 Origins Variants Manufacturer Westinghouse Type 3D Number Made 44 IEEE Band L Frequency 1215-1400MHz PRF 216 Low Stack 72 High Stack Pulse Width 150 us Rotation Speed 5.0 RPM Power 65kw Peak 3.5kw Avg. Range 254nmi Long Range Altitude 100k Introduced 1996 First Accepted at Tamiami Completed 1999 Last Accepted at Ajo See Also: US Radar Sets JSS/FAA Radar Sites Sources: Winkler, David F., Searching the Skies: the Legacy of the United States Cold War Defense Radar Program, USAF Hq Air Combat Command, 1997, 192 pages, Pdf Forecast International - ARSR-4 (FPS-130) Links: Radomes - Radar Equipment Air Route Surveillance Radar Model 4 (ARSR-4) Operational Test and Evaluation (OT&E) Final Report May 1997