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  2. Air Route Surveillance Radar - Wikipedia

    en.wikipedia.org/wiki/Air_Route_Surveillance_Radar

    L band. Range. 290 miles. The Air Route Surveillance Radar is a long-range radar system. It is used by the United States Air Force and the Federal Aviation Administration to control airspace within and around the borders of the United States. The ARSR-4 is the FAA's most recent (late 1980s, early 1990s) addition to the "Long Range" series of ...

  3. Joint Surveillance System - Wikipedia

    en.wikipedia.org/wiki/Joint_Surveillance_System

    The former J-31 San Pedro JSS ARSR-1 radar site, California USAF Battle Control System operators monitor the skies from the floor of the program's Eastern Air Defense Sector location. The Joint Surveillance System (JSS) is a joint United States Air Force and Federal Aviation Administration system for the atmospheric air defense of North America.

  4. Mount Laguna Air Force Station - Wikipedia

    en.wikipedia.org/wiki/Mount_Laguna_Air_Force_Station

    The FAA replaced the AN/FPS-7E with an ARSR-3 search radar, leaving the Air Force only responsible for the height-finder tower (by then an AN/FPS-116), which was removed c. 1988. In the late 1990s, the ARSR-3 was replaced by the ARSR-4. Today Mount Laguna is an FAA site, tied into the Joint Surveillance System (JSS). The former Air Force ...

  5. Radar speed gun - Wikipedia

    en.wikipedia.org/wiki/Radar_speed_gun

    A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement, and in professional sports to measure speeds such as those of baseball pitches, [1] tennis serves, and ...

  6. AN/FPS-20 Early Warning Radar - Wikipedia

    en.wikipedia.org/wiki/AN/FPS-20_Early_Warning_Radar

    The FPS-3. The AN/FPS-20 was a widely used L band early warning and ground-controlled interception radar system employed by the United States Air Force Air Defense Command, the NORAD Pinetree Line in Canada, the USAF CONAD in the continental United States, and a variety of other users. The design started life as the Bendix AN/FPS-3 in 1950, was ...

  7. Radar, Anti-Aircraft No. 3 Mk. 7 - Wikipedia

    en.wikipedia.org/wiki/Radar,_Anti-Aircraft_No._3...

    950 to 36,000 yd (870–32,920 m) Diameter. 5 ft (1.5 m) Power. 200 kW. Other Names. Blue Cedar. Radar, Anti-Aircraft Number 3 Mark 7, also widely referred to by its development rainbow code Blue Cedar, was a mobile anti-aircraft gun laying radar designed by British Thomson-Houston (BTH) in the mid-1940s. It was used extensively by the British ...

  8. 3D printers turn regular guns into machine guns. Feds are ...

    www.aol.com/3d-printers-turn-regular-guns...

    These small pieces modify guns for rapid-fire and are classified as machine guns themselves. As the $2,500 printers showed, hobbyists and criminals can easily exploit rapidly improving technology ...

  9. AN/APG-63 radar family - Wikipedia

    en.wikipedia.org/wiki/AN/APG-63_radar_family

    AN/APG-63. The AN/APG-63 and AN/APG-70 are a family of all-weather multimode radar systems designed by Hughes Aircraft (later Raytheon) for the F-15 Eagle air superiority fighter. These X band pulse-Doppler radar systems are designed for both air-air and air-ground missions; they are able to look up at high-flying targets and down at low-flying ...