enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Radio telescope - Wikipedia

   en.wikipedia.org/wiki/Radio_telescope

   A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. [ 1 ] [ 2 ] [ 3 ] Radio telescopes are the main observing instrument used in radio astronomy , which studies the radio frequency portion of the electromagnetic spectrum , just as optical telescopes are used to ...

3. Transient Array Radio Telescope - Wikipedia

   en.wikipedia.org/wiki/Transient_Array_Radio...

   The antenna array consists of 24 antennas arranged on four identical 'tiles' with 6 antennas each. Each tile is a 1x1 meter square. The antennas used are low-cost, widely available commercial GPS active antennas. More recent installations use multi-arm antenna arrays in either a three-arm 'Y' configuration, or a five-arm star configuration.

4. Radio astronomy - Wikipedia

   en.wikipedia.org/wiki/Radio_astronomy

   RADIO ASTRONOMY: 25 550–25 650 RADIO ASTRONOMY: 37.5–38.25 MHz FIXED MOBILE Radio astronomy: 322–328.6 FIXED MOBILE RADIO ASTRONOMY: 406.1–410 FIXED MOBILE except aeronautical mobile RADIO ASTRONOMY: 1 400–1 427 EARTH EXPLORATION-SATELLITE (passive) RADIO ASTRONOMY SPACE RESEARCH (passive) 1 610.6–1 613.8

5. List of radio telescopes - Wikipedia

   en.wikipedia.org/wiki/List_of_radio_telescopes

   TRAO was established in October 1986 with the 13.7 meter Radio Telescope. It opened the new era of the millimeter-wave radio astronomy in Korea as one of the main facilities of Korea Astronomy and Space science Institute [24] (KASI). It is operated by Radio astronomy division in KASI. [25] Korean VLBI Network (KVN) Republic of Korea 22/43/86 ...

6. Beam waveguide antenna - Wikipedia

   en.wikipedia.org/wiki/Beam_waveguide_antenna

   Diagram of a beam waveguide antenna from NASA, showing the signal path (red). A beam waveguide antenna is a particular type of antenna dish, at which waveguides are used to transmit the radio beam between the large steerable dish and the equipment for reception or transmission, like e.g. RF power amplifiers.

7. Holmdel Horn Antenna - Wikipedia

   en.wikipedia.org/wiki/Holmdel_Horn_Antenna

   Bell Labs' horn antenna, April 2007. The horn antenna at Bell Telephone Laboratories in Holmdel, New Jersey, was constructed on Crawford Hill in 1959 to support Project Echo, the National Aeronautics and Space Administration's passive communications satellites, [8] [5] which used large aluminized plastic balloons (satellite balloon) as reflectors to bounce radio signals from one point on the ...

8. Very Long Baseline Array - Wikipedia

   en.wikipedia.org/wiki/Very_Long_Baseline_Array

   The Very Long Baseline Array usually makes radio observations at wavelengths from three millimeters to 90 centimeters, or in other words, at frequencies from 0.3 gigahertz to 96 gigahertz. Within this frequency range, the VLBA observes in eight different frequency bands that are useful for radio astronomy. The VLBA also makes observations in ...

9. Stanford Dish - Wikipedia

   en.wikipedia.org/wiki/Stanford_Dish

   The Stanford Dish, known locally as the Dish, is a radio antenna in the Stanford foothills. The 150-foot-diameter (46 m) dish was built in 1961 by the Stanford Research Institute (now SRI International). The cost to construct the antenna was $4.5 million, and was funded by the United States Air Force. [1]