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  2. 10-meter band - Wikipedia

    en.wikipedia.org/wiki/10-meter_band

    10-meter band. The 10-meter band is a portion of the shortwave radio spectrum internationally allocated to amateur radio and amateur satellite use on a primary basis. The band consists of frequencies stretching from 28.000 to 29.700 MHz. [1]

  3. Owens Valley Radio Observatory - Wikipedia

    en.wikipedia.org/wiki/Owens_Valley_Radio_Observatory

    The COMAP receiver is installed on one of the 10-meter telescopes of the former millimeter array. KuPol, or Ku-band Polarimeter, is an instrument that was installed on the OVRO 40 meter Telescope in 2007 and is used to monitor blazars. [4] The Expanded Owens Valley Solar Array (EOVSA) is a solar radio telescope array currently in operation at ...

  4. Hallicrafters - Wikipedia

    en.wikipedia.org/wiki/Hallicrafters

    Hallicrafters Company. The Hallicrafters Company manufactured, marketed, and sold radio equipment, and to a lesser extent televisions and phonographs, beginning in 1932. The company was founded by William J. Halligan and based in Chicago, Illinois, United States. In 1966 Halligan sold the company to the Northrop Corporation and Halligan family ...

  5. Cygnus A - Wikipedia

    en.wikipedia.org/wiki/Cygnus_A

    Cygnus A (3C 405) is a radio galaxy, one of the strongest radio sources in the sky. A concentrated radio source in Cygnus was discovered by Grote Reber in 1939. In 1946 Stanley Hey and his colleague James Phillips identified that the source scintillated rapidly, and must therefore be a compact object. [4]

  6. World Radio Laboratories - Wikipedia

    en.wikipedia.org/wiki/World_Radio_Laboratories

    World Radio Laboratories, WRL, was a major supplier of amateur radio equipment from the 1950s to the 1970s. WRL was located in Council Bluffs, Iowa, USA, and run by Leo Meyerson, amateur callsign W0GFQ, and his family. Gray Instrument-Globe Scout Cluster. WRL manufactured some of its own products, notably under the Globe and Galaxy brand names.

  7. List of radio telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_telescopes

    RT-7.5 (Bauman's radio telescope) Moscow Oblast, Russia. Two 7.75-meter diameter antennas (only one is working at the moment) [35] Yebes RT 40 m. Spanish National Observatory, Yebes, Guadalajara, Spain [36] 40 m parabolic steerable telescope for mm and cm wavelengths. ToruĊ„ RT4 32 m.