St. Louis FAA Radar Site
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St. Louis FAA Radar Site (bef 1966-Active) - A Federal Aviation Administration (FAA) Long Range Radar (LRR) site first established before 1966 near St, Louis, St. Louis County, Missouri. The site is used to identify and track military and civilian aircraft movements within a 200-mile radius and to provide air-ground radio communication with those aircraft. Assigned an FAA ID of STL. Active FAA Radar Site. HistoryThis site became an FAA radar site before 1966, furnishing radar track data to the FAA ARTCCs and to USAF Direction Centers. The initial FAA ARSR-1 search radar was upgraded to an ARSR-1E and remained in operation until it was modified to become a CARSR radar by 2015. A FYQ-47 Common Digitizer was probably placed in service by February 1973 when the USAF/FAA FST-2 to FYQ-47 replacement program was completed. By 1990 the site was equipped with a CD-2A Common Digitizer and an ARSR-1E search radar. The St. Louis CD-2A was scheduled to receive an upgrade kit to implement three level weather data processing on 22 Jun 1990. CARSR RadarThe nationwide replacement program converting FAA legacy radar systems to the CARSR radar configuration was completed by 17 Aug 2015 and St. Louis FAA Radar Site was a part of that program. Legacy FAA radars underwent a Service Life Extension Program (SLEP) that replaced key components in the vintage ARSR-1, ARSR-2, FPS-20, FPS-66 and FPS-67 radars. The CARSR program replaced legacy klystron radar transmitters with a solid-state transmitter as well as renovating the radar receiver and signal processor. The CARSR modification also included common digitizer functionality making a separate common digitizer unnecessary. The St. Louis FAA Radar Site is now operating with the CARSR radar. At the time of the CARSR changeout, the legacy radar in place was an ARSR-1E and the CARSR conversion included a 7172 Antenna. The secondary radar at this site is an ATCBI-6 Beacon set. The radar site data is now available to the USAF/NORAD Battle Control System-Fixed (BCS-F) operations centers (EADS & WADS) as well as the FAA Kansas City ARTCC (ZKC) and adjacent ARTCCs. Other federal agencies have access to the data under the Homeland Security umbrella.
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