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- {{Short description|Type of satellite that transmits over amateur radio frequencies}} {{amateur radio}} ...51 KB (6,526 words) - 03:34, 11 October 2024
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- {{Short description|Character encoding used in radio data protocols}} '''CCIR 476''' is a [[character encoding]] used in radio data protocols such as [[SITOR]], [[AMTOR]] and [[Navtex]]. It is a recast ...14 KB (1,597 words) - 13:42, 2 March 2023
- {{Short description|Type of satellite that transmits over amateur radio frequencies}} {{amateur radio}} ...51 KB (6,526 words) - 03:34, 11 October 2024
- {{Short description|Radio standard}} [[File:ICOM IC-F3162dt.jpg|thumb|150px|IDAS Radio IC-F3162DT]] ...14 KB (1,896 words) - 19:32, 5 February 2025
- | radio (filter) | radio (filter) ...91 KB (11,342 words) - 02:39, 11 December 2024
- ...m.cn/d/2008-07-29/16522358390.shtml}}</ref> In addition, the first amateur radio communication experiment during a total solar eclipse in mainland China,<re ...12 KB (1,537 words) - 04:50, 15 February 2025
- * 1884 – 4 October: [[Lincoln City F.C.]], founded as an amateur [[Association football]] club, play their first match, at [[John O'Gaunts]] ...07 – 11th August: Siren Radio ([[Siren_FM]]) starts broadcasting community radio ...20 KB (2,694 words) - 20:44, 22 September 2024
- ...scans essentially map the location of water and fat in the body. Pulses of radio waves excite the [[Spin (physics)|nuclear spin]] energy transition, and mag ...s align parallel to ''B''<sub>0</sub> as this is a lower energy state. A [[radio frequency]] pulse is then applied, which can excite protons from parallel t ...47 KB (6,916 words) - 06:26, 14 February 2025
- ...ted tilings have been used since the late 1930s in the [[Smith chart]] for radio engineering, and appear in a 1957 print by [[M. C. Escher]]. The [[Smith chart]], a graphical method of visualizing parameters in [[radio engineering]], resembles a binary tiling on the [[Poincaré disk model]] of ...26 KB (3,830 words) - 00:35, 11 January 2025
- ...w {{nowrap|2 kHz}} bandwidth signals in [[single-sideband modulation|SSB]] radio receivers. It operates at {{nowrap|455 kHz}}, a common [[intermediate frequ ...r]] usually used in place of an [[electronic filter]] at [[radio frequency|radio frequencies]]. Its purpose is the same as that of a normal electronic filt ...57 KB (8,456 words) - 05:48, 18 March 2024
- ...ns at higher frequencies than printed circuits, and this is done in some [[radio frequency]] integrated circuits. This choice is particularly significant fo ...d uses, such as [[Lecher line]]s and the [[twin-lead]] used for [[antenna (radio)|antenna]] [[feed line]]s.<ref>{{multiref|Hura & Singhal, pp. 178–179| Magn ...48 KB (6,671 words) - 00:23, 23 May 2024
- ...mical" alternatives, which posit that heat is a kind of motion. Brewer and amateur scientist [[James Prescott Joule]] was one of the proponents of the latter. ...rtz generated and detected what are now called radio waves and built crude radio antennas and the predecessors of satellite dishes.<ref name="Baigrie-2007b" ...63 KB (9,305 words) - 21:16, 1 October 2024
- *[[Amateur astronomy]] *[[Radio Galaxy Zoo]] ...50 KB (6,967 words) - 08:46, 1 March 2025
- ** 14 August: [[Oliver Lodge]] demonstrates radio transmission (of [[Morse code]]) from the [[Clarendon Laboratory]] to the [ ...ditions; H. F. Hodges scores the first goal. {{cite web|title=1905–06 F.A. Amateur Cup|work=Football Club History Database|url=http://fchd.info/cups/amcup1905 ...237 KB (32,484 words) - 01:34, 16 February 2025