• Thumbnail for Low-Frequency Array
    The Low-Frequency Array (LOFAR) is a large radio telescope, with an antenna network located mainly in the Netherlands, and spreading across 7 other European...
    34 KB (3,749 words) - 17:25, 26 March 2025
  • Thumbnail for Line array
    to be arrayed horizontally without behaving as a horizontal line source. Modern line arrays use separate drivers for high-, mid- and low-frequency passbands...
    20 KB (2,451 words) - 20:44, 11 November 2024
  • Thumbnail for Very Large Array
    The Karl G. Jansky Very Large Array (VLA) is a centimeter-wavelength radio astronomy observatory in the southwestern United States built in the 1970s...
    22 KB (2,273 words) - 13:04, 18 May 2025
  • Thumbnail for Extremely low frequency
    Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz, and corresponding wavelengths...
    38 KB (4,068 words) - 23:01, 17 April 2025
  • Thumbnail for Active electronically scanned array
    active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled antenna array in which the beam of radio waves...
    46 KB (5,357 words) - 21:15, 10 May 2025
  • include the Precision Array for Probing the Epoch of Reionization (PAPER), Low Frequency Array (LOFAR), Murchison Widefield Array (MWA), and Giant Metrewave...
    2 KB (207 words) - 16:21, 31 October 2024
  • Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz. Since its wavelengths range from 10–1 km, respectively...
    22 KB (2,427 words) - 13:31, 6 February 2025
  • Thumbnail for Nançay Radio Observatory
    Nançay Radio Observatory (category Low-Frequency Array)
    Extension in Nançay Upgrading LOFAR) is a very low-frequency phased array optimised for the frequency range from 10 MHz to 85 MHz (30 m to 4 m). These...
    19 KB (2,369 words) - 22:49, 25 May 2024
  • Thumbnail for PSR J0952–0607
    known within the Milky Way. PSR J0952–0607 was discovered by the Low-Frequency Array (LOFAR) radio telescope during a search for pulsars in 2016. It is...
    20 KB (1,747 words) - 20:44, 6 May 2025
  • Thumbnail for Leviathan of Parsonstown
    Receiver Units (RCUs). The Birr Castle station on its own is the Irish Low Frequency Array (I-LOFAR) telescope. In 2018, I-LOFAR observed for the first time...
    11 KB (1,375 words) - 22:24, 1 May 2025
  • Thumbnail for Porphyrion (radio galaxy)
    It is located in the constellation Draco and it was discovered in Low-Frequency Array (LOFAR) data by an international team led by Martijn Oei. Porphyrion...
    8 KB (706 words) - 01:25, 30 December 2024
  • Thumbnail for Radio telescope
    connected radio telescope array is the Giant Metrewave Radio Telescope, located in Pune, India. The largest array, the Low-Frequency Array (LOFAR), finished in...
    24 KB (2,634 words) - 14:37, 5 April 2025
  • Thumbnail for Dwingeloo Radio Observatory
    also houses most of the staff of ASTRON and a test site for the Low Frequency Array radio telescope, LOFAR. Two galaxies are named after this telescope:...
    4 KB (396 words) - 19:52, 20 May 2025
  • Thumbnail for Alcyoneus (galaxy)
    It is located in the constellation Lynx and it was discovered in Low-Frequency Array (LOFAR) data by a team of astronomers led by Martijn Oei. As of 2024...
    10 KB (964 words) - 04:00, 27 January 2025
  • Thumbnail for Birr Castle
    I-LOFAR". Irish Low Frequency Array (I-LOFAR). Retrieved 15 March 2025. Van Haarlem, M. P.; et al. (2013). "LOFAR: The LOw-Frequency ARray". Astronomy &...
    20 KB (2,051 words) - 19:05, 20 April 2025
  • pulsar timing arrays, the best known is the use of an array of millisecond pulsars to detect and analyse long-wavelength (i.e., low-frequency) gravitational...
    24 KB (2,571 words) - 22:51, 25 March 2025
  • Thumbnail for Very low frequency
    Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km,...
    38 KB (3,957 words) - 21:19, 28 March 2025
  • Thumbnail for Search for extraterrestrial intelligence
    used for radio SETI searches, including the Low Frequency Array (LOFAR) in Europe, the Murchison Widefield Array (MWA) in Australia, and the Lovell Telescope...
    145 KB (15,727 words) - 19:33, 20 May 2025
  • Thumbnail for Murchison Radio-astronomy Observatory
    Murchison Widefield Array (MWA), a low-frequency array operating in the frequency range 80–300 MHz the Australian Square Kilometre Array Pathfinder (ASKAP)...
    15 KB (1,551 words) - 01:20, 19 March 2025
  • Thumbnail for Astronomical interferometer
    Array (CASA) Infrared Optical Telescope Array (IOTA) Interplanetary Scintillation Array (IPS array) also called the Pulsar Array LOFAR (LOw Frequency...
    26 KB (2,657 words) - 02:25, 13 June 2024
  • Thumbnail for Square Kilometre Array
    Kilometre Array (SKA) is an intergovernmental international radio telescope project being built in Australia (low-frequency) and South Africa (mid-frequency)....
    72 KB (6,913 words) - 05:59, 11 May 2025
  • parametric array, in the field of acoustics, is a nonlinear transduction mechanism that generates narrow, nearly side lobe-free beams of low frequency sound...
    13 KB (1,473 words) - 03:18, 11 May 2025
  • Thumbnail for Radio astronomy
    frequencies, synthesised beams less than 1 milliarcsecond are possible. The pre-eminent VLBI arrays operating today are the Very Long Baseline Array (with...
    37 KB (3,871 words) - 14:43, 19 May 2025
  • Thumbnail for Infrasound
    low frequency sound or incorrectly subsonic (subsonic being a descriptor for "less than the speed of sound"), describes sound waves with a frequency below...
    51 KB (5,455 words) - 18:53, 23 May 2025
  • Thumbnail for Effelsberg 100-m Radio Telescope
    Effelsberg 100-m Radio Telescope (category Low-Frequency Array)
    The Effelsberg 100-m Radio Telescope is a radio telescope in the Ahr Hills (part of the Eifel) in Bad Münstereifel, Germany. Inaugurated in 1972, for 29...
    7 KB (620 words) - 01:09, 25 September 2024
  • Thumbnail for Phased array
    antenna array must extend many wavelengths to achieve the high gain needed for narrow beamwidth, phased arrays are mainly practical at the high frequency end...
    46 KB (5,291 words) - 07:28, 10 May 2025
  • Ultra-wideband) Frequency agility, and frequency selection Advanced/irregular scan patterns Coded pulses (coherent detection) High processing gain Low sidelobe...
    11 KB (1,097 words) - 00:43, 13 March 2025
  • Thumbnail for Midway Atoll
    featured two antenna arrays: a low-frequency array covering 2 to 8 MHz and a high-frequency array covering 8 to 32 MHz. Each array consisted of multiple...
    73 KB (6,850 words) - 22:31, 16 April 2025
  • Large Array, Atacama Large Millimeter Array, Murchison Widefield Array, and Low-Frequency Array. The collage above shows antennas from several low-frequency...
    77 KB (9,217 words) - 15:30, 22 May 2025
  • Low Frequency Analyzer and Recorder and Low Frequency Analysis and Recording (LOFAR) are the equipment and process respectively for presenting a visual...
    12 KB (1,392 words) - 03:26, 16 April 2025