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AN/CPS-4

AN/CPS-4 Radar
Type	Medium-Range Height Finding
Frequency	2700 to 2900 MHz

The AN/CPS-4 Radar was a medium-range height-finding radar used by the United States Air Force Air Defense Command.

Developed by MIT's Radiation Laboratory, this height-finding radar was nicknamed "Beaver Tail." The radar was designed to be used in conjunction with the SCR-270 and SCR-271 search sets. The CPS-4 required six operators. This S-band radar, operating in the 2700 to 2900 MHz range, could detect targets at a distance of ninety miles. The vertical antenna was twenty feet high and five feet wide. This radar was often paired with the AN/FPS-3 search radar during the early 1950s at permanent network radar sites.

See also

• List of radars
• List of military electronics of the United States

References

 This article incorporates public domain material from the Air Force Historical Research Agency

• AN/CPS-4 @ radomes.org
• Winkler, David F. (1997), Searching the skies: the legacy of the United States Cold War defense radar program. Prepared for United States Air Force Headquarters Air Combat Command.

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