AN/FPS-120 became operational. In 2007, 100 owners/trustees of amateur radio repeaters near AN/FPS-123 radars were notified to lower their power output to mitigate interference, and AN/FPS-123s were part of the Air Force Space Surveillance System by 2009. BAE Systems began a 2007 contract for SSPARS maintenance. The SSPARS radar electronics was subsequently upgraded, e.g., the Beale radar and the Fylingales FPS-126 each became an AN/FPS-132 Upgraded Early Warning Radar (UEWR) by Raytheon. The Beale AN/FPS-123 was upgraded to a Raytheon AN/FPS-132 (UEWR) with capabilities to operate in the Ground-based Midcourse Defense (GMD) ABM system—the Beale UEWR included "Avionics", "T/R modules", "FEX/TTG", "BSG", "Signal Processor", and other changes. After additional UEWR installations for GMD at Thule Site J and the UK (contracted 2003), a 2012 ESD/XRX Request for Information for replacement, and remote operation, of the remaining "PAVE PAWS/BMEWS/PARCS systems" at Cape Cod, Alaska, and North Dakota was issued. The Alaska AN/FPS-132 was contracted in fall 2012 and the Cape Cod installation in 2013. System overview Solid-state phased array radar Each radar installation has multiple faces, where each face provides a 120-degree coverage. Operating frequency: Ultra high frequency (UHF) Range: 3,000 miles Locations Active: Beale Air Force Base, California RAF Fylingdales, United Kingdom Thule Site J (Thule Air Base), Greenland Planned: Clear Space Force Station, Alaska Cape Cod Space Force Station, Massachusetts Qatar References 1987 in military history 2001 in military history Early warning systems Cold War military computer systems of the United States Equipment of the United States Space Force Radar networks United States Space Surveillance Network