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- [[File:UK amateur radio regional locators.svg|thumb|200px|Regional secondary locators]] ...ocator forms part of a UK callsign and identifies which region the amateur radio station is being operated from. The regional secondary locator for England, ...3 KB (487 words) - 19:01, 13 January 2020
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- [[File:UK amateur radio regional locators.svg|thumb|200px|Regional secondary locators]] ...ocator forms part of a UK callsign and identifies which region the amateur radio station is being operated from. The regional secondary locator for England, ...3 KB (487 words) - 19:01, 13 January 2020
- ...ems above and representative wavelengths for submillimeter, microwave, and radio waves, calculate the width of each wavelength channel and the total detecto # Amateur astronomers may be able to build or buy a spectrograph. ...6 KB (883 words) - 21:00, 12 April 2023
- ..... [Using the] Karl G. Jansky Very Large Array (VLA) of telescopes ... The radio waves emanating ... are about 4.5 times fainter than the previous record .. |title=Faint Radio Signals Reveal Secrets of Failed Stars ...18 KB (2,848 words) - 23:51, 29 April 2020
- |title=Amateur astronomer discovers Jupiter collision ...tralia, and was later discovered to have been captured on video by another amateur astronomer in the Philippines.<ref name=Bakich>{{ cite book ...130 KB (18,908 words) - 09:02, 12 September 2023
- ...ght, or electromagnetic radiation. They span a spectrum from gamma rays to radio waves. ...equency] SHF band (3 to 30 GHz, or 10 to 1 cm) at minimum, with [radio frequency] RF engineering often putting the lower boundary at 1 GHz (3 ...114 KB (17,436 words) - 01:58, 31 August 2022
- ...t was only with the latest eruption on 2006 February 12 that very detailed radio imagery and X-ray observations in particular could be performed."<ref name= | isbn=0-387-48941-X }}</ref> The discrepancy was first noted by amateur astronomer [[w:Thomas Barker (meteorologist)|Thomas Barker]], who prepared ...85 KB (12,831 words) - 05:11, 5 December 2020
- The surface of the Sun emits radio waves, including microwaves. {{main|Radiation astronomy/Radios|Radio astronomy|Radio astronomy}} ...97 KB (14,511 words) - 09:48, 30 May 2023
- ...ew minutes. The brightness increase is across the spectrum, from X rays to radio waves. |title=NASA Says Solar Flare Caused Radio Blackouts ...100 KB (14,584 words) - 05:11, 5 December 2020
- | isbn=0-387-48941-X }}</ref> The discrepancy was first noted by amateur astronomer [[w:Thomas Barker (meteorologist)|Thomas Barker]], who prepared |title=Discovery of Hydroxyl Radio Emission from Infrared Stars ...46 KB (6,963 words) - 22:28, 23 August 2021
- ...of [[w:Coherence (physics)|coherent]] radiation in the [[w:radio frequency|radio]] or [[w:microwave|microwave]] part of the [[w:electromagnetic spectrum|ele "In particular we recognize a first trace of Vela, brightest gamma and radio galactic source, and smeared sources along Galactic Plane and Center [as a ...113 KB (16,951 words) - 01:02, 18 April 2023
- ...t|300px|This image is a composite of several types of radiation astronomy: radio, infrared, visual, ultraviolet, soft and hard X-ray. Credit: NASA.{{tlx|fre ...io images at successive epochs using the VLBA of the jet in the broad-line radio galaxy 3C 111. Credit: M. Kadler, E. Ros, M. Perucho, Y. Y. Kovalev, D. C. ...204 KB (30,334 words) - 12:29, 6 June 2023