ARSR-1

ARSR-1 Long-Range Search Radar Set - A long-range ground search radar set built by Raytheon for the Federal Aviation Administration (FAA). First deployed in 1958. ARSR-1 Search Radar The ARSR-1 was an long-range L-band (1215- 1400 MHz) air-route-surveillance radar built by Raytheon for the FAA. Twenty nine ARSR-1s were deployed by the FAA starting in 1958. The ARSR-1 was used as a surveillance system to detect azimuth and range of en route aircraft operating between FAA terminal areas.The ARSR-1 used a conventional magnetron feeding 400 kW peak power into an amplitron to provide an additional 10 dB gain. ARSR-1 Typical Equipment Layout prior to the Solid State Receiver/Digital Moving Target Indicator (SSR/DMTI) Modification. ARSR-1E Search Radar By the mid-1990s the FAA had updated the ARSR-1 to the ARSR-1E Model and was operating it at 29 JSS and FAA Sites. The ARSR-1E was based on the 1960s vintage ARSR-1 radar that was updated through a Service Life Extension Program (SLEP). It was still basically a long-range radar system with a maximum detection range of about 200 nautical miles (nmi). It also provided weather intensity data. The ARSR-1E could also be interfaced to a collocated Common Digitizer Model 1/2 (CD-1/CD-2) or other digital processors which provided digitized output. By 2015 all of the operating ARSR-1Es had been further transformed into Common Air-Route-Surveillance (CARSR) radars with additional solid state components that would extend the supportable life of the set. ARSR-1 Search Radar Element Value Notes Nomenclature ARSR-1 Origins Variants ARSR-1A/B/C/D/E Manufacturer Raytheon Type Search Number Made 29~ IEEE Band L Frequency 1215-1350 MHz PRF 360 Hz Pulse Width 2 us Rotation Speed 5 rpm Antenna Type 7172 Power 4 MW 2.9 KW Peak Average Range 200 nmi long range Altitude 61,000 Introduced 1958 See Also: CARSR US Radar Sets 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, page 88. FAA - Site Listing of Legacy Radars as of 23 Dec 2016. U.S. DoT - Recommendation on Transition from Primary/Secondary Radar to Secondary-Only Radar Capability 1994. FAA - Three Level Weather For ARTCC Displays - Project Implementation Plan, FAA Order 7110.14A, 14 Feb 1990. FAA - SSR/DMTI Modification - Project Implementation Plan, FAA Order 6340.20, 6 Jul 1988. ADTAC Communications Digest, July 1982, Tactical Air Command. Links: Radomes - Radar Equipment Radar Tutorial - ARSR-1,-2 Attachment 4: Typical Legacy Site Infrastructure NTIA Report 82-92 - Output Tube Emission Characteristics of Operational Radars