View source for ARSR-2

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'''{{PAGENAME}} Long-Range Search Radar Set''' - A long-range ground search radar set built by Raytheon for the Federal Aviation Administration (FAA). First deployed about 1960.
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== ARSR-2 Search Radar ==
The ARSR-2 was a long-range L-band (1215- 1400 MHz) air-route-surveillance radar built by Raytheon for the FAA. Eighteen ARSR-2s were deployed by the FAA starting about 1960. The ARSR-2 was used as a surveillance system to detect azimuth and range of en-route aircraft operating between FAA terminal areas. The ARSR-2 was an upgrade of the ARSR-1 and also used a conventional magnetron feeding 400 kW peak power into an amplitron to provide an additional 10 dB gain.
[[File:ARSR-1 Typical Equip Layout.jpg|thumb|center|800px|ARSR-2 Typical Equipment Layout prior to the Solid State Receiver/Digital Moving Target Indicator (SSR/DMTI) Modification.]]
== ARSR-2 Upgrades ==
The ARSR-2 was based on a 1960s vintage radar that has been updated through the Service Life Extension Program (SLEP).

The ARSR-2 is usually interfaced with 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-2s 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 into 2025.

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! Element
! Value
! Notes
|-
| Nomenclature || ARSR-2 ||
|-
| Origins || [[ARSR-1]] ||
|-
| Variants || ||
|-
| Manufacturer || Raytheon ||
|-
| Type || Search ||
|-
| Number Made|| 18 ||
|-
| IEEE Band || L ||
|-
| Frequency || 1215-1350 MHz ||
|-
| PRF || 360 Hz||
|-
| Pulse Width || 2 us || 
|-
| Rotation Speed || 5 rpm ||
|-
| Antenna || ||
|-
| Power || 4 MW<br>2.9 KW || Peak<br>Average
|-
| Range || 200 nmi || long range
|-
| Altitude || 61,000 ||
|-
| Introduced || 1960 ||

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{{ARSR-2Components}}

'''See Also:'''
* [[ARSR-1]]
* [[CARSR]]
* [[US Radar Sets]]

'''Sources:''' 
* {{Winkler}}, page 88.
* [https://rosap.ntl.bts.gov/view/dot/8829/dot_8829_DS1.pdf? FAA - Recommendation on Transition from Primary/Secondary Radar to Secondary-Only Radar Capability.]

'''Links:''' 
* [http://www.radomes.org/museum/equip.php Radar Equipment]
* [http://www.radartutorial.eu/19.kartei/11.ancient/karte170.en.html Radar Tutorial - ARSR-1,-2]
* [https://faaco.faa.gov/index.cfm/attachment/download/75353 Attachment 4: Typical Legacy Site Infrastructure]
* [https://www.its.bldrdoc.gov/publications/download/82-92_ocr.pdf NTIA Report 82-92 - Output Tube Emission Characteristics of Operational Radars]
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[[Category:Radar Sets]]
[[Category:ARSR-2]]