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Los Angeles, California, US A 2.3-meter satellite dish on a fully steerable, motorized azimuth-elevation mount with a low-noise amplifier and super-heterodyne receiver running SRT/VSRT (version 7.5). Currently inactive. OVRO 40 meter Telescope: Owens Valley Radio Observatory, Big Pine, California, US 15 GHz
By the 1970s they were a leading manufacturer of mid-range systems in the US. Among their better-known lines from this period is the ITT-Gilfillan S320 radar, used as the basis for many US military radars, the PAR-2000 and GCA-2000 air traffic radars, the MPN-26 mobile PAR, and a range of airport surveillance radars .
Owens Valley Radio Observatory (OVRO) is a radio astronomy observatory located near Big Pine, California (US) in Owens Valley. It lies east of the Sierra Nevada , approximately 350 kilometers (220 miles) north of Los Angeles and 20 kilometers (12 miles) southeast of Bishop .
The Combined Array for Research in Millimeter-wave Astronomy (CARMA) was an astronomical instrument comprising 23 radio telescopes, dedicated in 2006. [1] These telescopes formed an astronomical interferometer where all the signals are combined in a purpose-built computer (a correlator) to produce high-resolution astronomical images. [2]
Very-long-baseline interferometry (VLBI) is a type of astronomical interferometry used in radio astronomy. In VLBI a signal from an astronomical radio source, such as a quasar, is collected at multiple radio telescopes on Earth or in space. The distance between the radio telescopes is then calculated using the time difference between the ...
To expand on the work of the 20-foot interferometer, Pease, Michelson and George E. Hale designed a 50-foot interferometer which was installed at Mount Wilson Observatory in 1929. It successfully measured the diameter of Betelgeuse, but, other than beta Andromedae, could not measure any stars not already measured by the 20-foot interferometer. [20]
The AN/APG-78 Longbow is a millimeter-wave fire-control radar (FCR) target acquisition system and the Radar Frequency Interferometer (RFI), which are housed in a dome located above the main rotor. [4] [5] The radome's raised position enables target detection while the helicopter is behind obstacles (e.g. terrain, trees or buildings). The APG-78 ...
In 1946 Ryle built the first multi-element astronomical radio interferometer. [10] Ryle guided the Cambridge radio astronomy group in the production of several important radio source catalogues. One such catalogue, the Third Cambridge Catalogue of Radio Sources (3C) in 1959 helped lead to the discovery of the first quasi-stellar object .