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Sporadic E propagation
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==Occasional "bonanza" events== On 12 June 2009, sporadic E allowed some television viewers in the eastern United States to see VHF analog TV stations from other states at great distances, in places and on TV channels where local stations had already done their permanent analog shutdown on the final day of the DTV transition in the United States. This was possible because VHF has been mostly avoided by digital TV stations, leaving the analog stations the last ones on the band. As of April 2010, it was possible for many in the U.S. to see Canadian and Mexican analog in this manner during sporadic E events; this should continue until all parts of those countries complete their own analog TV shutdowns over the succeeding few years. In some cases it is even possible to get DTV E{{sub|s}} receptions from well over 1,000 miles (1,600 km), since even for DTV, some U.S. stations still use band 1. These signals are characterized for being either extremely clear, or extremely blocky. They are also much easier to identify. Furthermore, [[ATSC 3.0]] could make sporadic E DTV reception easier, due to its usual modulation scheme being more resistant to multipath propagation, as well as impulse noise encountered on those frequencies.{{citation needed|date=July 2019}} === Notable sporadic E DX reception events === * In 1939, there were some news reports of reception of an early [[Italy|Italian]] television service in [[England]] about {{convert|900|mi|km}} away.<ref>{{cite web |title=Early Television in Italy |date=16 March 2007 |url=http://www.etedeschi.ndirect.co.uk/database/it.tv.htm |url-status=dead |archive-url=https://web.archive.org/web/20070316080809/http://www.etedeschi.ndirect.co.uk/database/it.tv.htm |archive-date=16 March 2007}}</ref> * The Medford Mail Tribune in [[Medford, Oregon]] reported on June 1, 1953, that [[KAMR|KGNC-TV]], channel A4 in [[Amarillo, Texas|Amarillo]], and [[KWGN-TV|KFEL-TV]], channel A2 from [[Denver]] had been received on the Trowbridge and Flynn Electric Company's television set at their Court Street warehouse, and with a pre-amplifier, a New York station's test pattern was reportedly picked up.<ref>{{cite web |author=Kramer, Ronald |title=History of Television in Southern Oregon |publisher=Western States Museum of Broadcasting |url=http://www.wsmb.org/page.asp?navid=17 |access-date=2009-08-16 |url-status=dead |archive-url=https://web.archive.org/web/20160112202838/http://www.wsmb.org/page.asp?navid=17 |archive-date=2016-01-12 }}</ref> * The June 4, 1953 issue of the Brimfield News in [[Brimfield, Illinois]] reported that area residents " 'saw' Salt Lake City Monday (via television)". It reported that a local farm family witnessed interference to [[WHBF-TV]], channel A4 of [[Rock Island, Illinois]] by [[KTVX|KDYL-TV]] in [[Salt Lake City]], which "blocked out all their favorite programs."<ref>{{cite web |title=The Brimfield News |url=https://brimfield.advantage-preservation.com/viewer/?k=%22channel%204%22&t=30606&i=t&d=01011876-12311977&m=between&ord=k1&fn=the_brimfield_news_usa_illinois_brimfield_19530604_english_1&df=1&dt=3 |access-date=2020-08-06}}</ref> * In June 1981, Rijn Muntjewerff, in the [[Netherlands]], received 55.25 MHz TV-2 Guaiba, [[Porto Alegre, Brazil]], via a combination of sporadic E and afternoon TEP at a distance of {{convert|6320|mi|km}}.<ref name="Rijn-Muntjewerff-TV-DX.html">{{cite web | title=Rijn Muntjewerff's 1961–2005 TV DX | work=Todd Emslie's TV DX Page | url=http://home.iprimus.com.au/toddemslie/Rijn-Muntjewerff-TV-DX.html | access-date=August 29, 2005}}</ref> * On May 30, 2003, Girard Westerberg, in [[Lexington, Kentucky]],<ref>{{cite web |url=http://www.dxfm.com/ |title=Welcome to DX FM<!-- Bot generated title --> |archive-url=https://web.archive.org/web/20090412030636/http://dxfm.com/ |archive-date=2009-04-12 }}</ref> made the first known reception of digital television by sporadic E when he decoded the [[Program and System Information Protocol|PSIP]] identification of [[KHME|KOTA-DT]], broadcasting on channel A2 from [[Rapid City, South Dakota]], {{convert|1062|mi|km}} away. * On June 26, 2003, Paul Logan, in [[Lisnaskea]], Ireland, was the first DXer to receive transatlantic sporadic E at frequencies above 88 MHz. Stations received included 88.5 MHz [[WHCF]] [[Bangor, Maine]] ({{convert|2732|mi|km|disp=or}}), and 97.5 MHz [[WFRY]] [[Watertown (city), New York|Watertown, New York]] ({{convert|3040|mi|km|disp=or}}). David Hamilton from [[Cumnock]] in [[Ayrshire]], [[Scotland]], received [[CBT-FM|CBTB-FM]] from [[Baie Verte, Newfoundland and Labrador]], Canada, on 97.1 MHz on this day also.<ref>{{cite web |title=Trans-Atlantic FM, 26 June 2003 |website=www.dxradio.co.uk |url=http://www.dxradio.co.uk/transatlanticfm.html}}</ref><ref>{{cite web |title=Transatlantic FM 03 |url=https://band2dx.webs.com/tafm03.htm}}</ref> * On July 20, 2003, Jozsef Nemeth, in [[Győr]], Hungary, received TR3 Radio Miras on [[OIRT]] FM 70.61 MHz from [[Uly Balkan]], [[Türkmenistan]], transmitter {{convert|1895|mi|km|disp=or}} away.<ref>{{cite AV media |title=Signal from 70.61 MHz <!-- Bot generated title --> |format=mp3 |medium=audio recording |website=ucoz.hu |url=http://enjoe.ucoz.hu/_ld/3/381_u706_4.mp3}}</ref> * On July 6, 2004, an intense high [[Maximum usable frequency|MUF]] Sporadic-E opening allowed Mike Bugaj of [[Enfield, Connecticut]],<ref>{{Cite web |url=http://pages.cthome.net/fmdx |title=Mike's TV and FM DX page |access-date=February 12, 2008 |archive-url=https://web.archive.org/web/20080130183048/http://pages.cthome.net/fmdx/ |archive-date=January 30, 2008 |url-status=dead }}</ref> to receive [[KATV]] A7<ref>{{cite web | title=High Band E Skip | work=Mike's TV and FM DX Page | url=http://fmdx.usclargo.com/hibandes.html | access-date=April 26, 2005}}</ref> {{convert|1176|mi|km}} from [[Little Rock, Arkansas]].<ref>See [[E-skip#Notable sporadic E DX receptions]]</ref> * On June 15, 2005, Danny Oglethorpe in [[Shreveport]], [[Louisiana]], received a [[KBEJ-TV]] test signal on channel A2, from [[Fredericksburg, Texas]], by sporadic E, at a very short distance for this propagation mode: {{convert|327|mi|km}}.<ref>{{cite web |title=KBEJ-2 via E{{sub|s}} |website=tvdxtips.com |url=http://www.tvdxtips.com/kbej2es.html}}</ref><ref>{{cite web |title=Short E-skip |website=www.tvdxexpo.com |url=http://www.tvdxexpo.com/usac/shortes.htm}}</ref> * On June 26, 2009, Paul Logan, in [[Lisnaskea]], Ireland, had transatlantic sporadic E reception on the FM band from eight US States and one Canadian Province. The most distant signal received was that of 90.7 [[WVAS]] radio in [[Montgomery, Alabama]], at 6,456 km (4,012 miles). This reception was recorded and later confirmed by [[WVAS]] newsreader Marcus Hyles.<ref>{{cite web |title = Transatlantic FM 09 |url=https://band2dx.webs.com/tafm09.htm}}</ref> * On May 31, 2010, Mike Fallon, in [[East Sussex]], United Kingdom, received a transatlantic signal from the religious station La Voz de la Luz,<ref>{{Cite web |title=La Luz FM Higüey En Línea RD |url=https://radios.com.do/luz-higuey/ |access-date=2025-01-29 |website=Radios.com.do |language=es-DO}}</ref> in Salvaléon de Higüey,<ref>{{Citation |title=Salvaleón de Higüey |date=2022-07-09 |work=Simple English Wikipedia, the free encyclopedia |url=https://simple.wikipedia.org/wiki/Salvale%C3%B3n_de_Hig%C3%BCey |access-date=2025-01-29 |language=en}}</ref>{{cite needed|date=May 2025}} a radio station in the Dominican Republic on 88.7MHz from 12:48 UTC for approximately 20 minutes at a distance of {{convert|4302|mi|km}} via multihop Sporadic-E. This reception was confirmed via an email from the station.{{cn|date=May 2025}} * On November 24, 2016, many radio listeners from Australia and New Zealand were able to listen to radio stations from other states of Australia, overlapping many radio signals. Many people complained about this, saying that many of their favorite radio stations got replaced by different radio stations from other states. Later, the [[Australian Communications and Media Authority|ACMA]] confirmed that this was caused by sporadic E.<ref>{{cite web |title=Sporadic E causing strange phenomena for Aussie radio stations |website=Radioinfo.com.au |date=24 November 2016 |url=https://www.radioinfo.com.au/news/sporadic-e-causing-strange-phenomena-aussie-radio-stations |access-date=26 November 2016}}</ref> <!-- Please only add items to this section if they are described in reliable sources, accompanied by complete citations. -->
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