{"id":30824,"date":"2018-02-11T07:38:32","date_gmt":"2018-02-11T11:38:32","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=30824"},"modified":"2018-02-11T07:38:32","modified_gmt":"2018-02-11T11:38:32","slug":"paul-explores-the-luxembourg-effect","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2018\/02\/paul-explores-the-luxembourg-effect\/","title":{"rendered":"Paul explores the Luxembourg Effect"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Many thanks to SWLing Post<\/em> contributor, Mike Hansgen, who shares the following article by\u00a0Paul Litwinovich at WSHU:<\/p>\n

In this article I\u2019ll look at two things that, unless you are a serious ham operator or an absolute radio geek, you probably are unfamiliar with.<\/p>\n

First, we will take a look at a very rare phenomenon first noted by radio listeners back in 1933. It generated several theories, but the correct one was only verified experimentally in recent times.<\/p>\n

Second, we will look at a government-funded project that, while built for other purposes, was used to confirm the phenomenon 75 years later.<\/p>\n

The Luxembourg Effect was first documented by electrical engineer and professor Bernard Tellegen. The professor is also credited with the invention of the tetrode vacuum tube. My past article, A Radio for the Roaring Twenties, features one of the first radios to use the tube.<\/p>\n

One night, Mr. Tellegen was in the Netherlands, listening to a station transmitting from Beromunster, Switzerland, on 652 kHz. In the background of the Swiss signal, he could hear the audio of Radio Luxembourg, which normally broadcast on 252 kHz. He was far enough away from each station that neither station’s signal would have been strong enough to overload his receiver. The two signals seemed to be mixing somehow, but by what means?[…]<\/p><\/blockquote>\n

Click here to continue reading at WSHU.<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post contributor, Mike Hansgen, who shares the following article by\u00a0Paul Litwinovich at WSHU: In this article I\u2019ll look at two things that, unless you are a serious ham operator or an absolute radio geek, you probably are unfamiliar with. First, we will take a look at a very rare phenomenon first […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[8,3,43],"tags":[2757,2758,6836,3422,3232,3234],"class_list":["post-30824","post","type-post","status-publish","format-standard","hentry","category-articles","category-news","category-shortwave-radio","tag-haarp","tag-high-frequency-active-auroral-research-program","tag-luxembourg-effect","tag-mike-k8rat","tag-paul-litwinovich","tag-wshu"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-81a","jetpack-related-posts":[{"id":12864,"url":"https:\/\/swling.com\/blog\/2015\/03\/paul-litwinovich-sheds-light-on-the-royalty-of-radios\/","url_meta":{"origin":30824,"position":0},"title":"Paul Litwinovich sheds light on the “Royalty of Radios”","author":"Thomas","date":"March 29, 2015","format":false,"excerpt":"Many thanks to SWLing Post reader, Paul, who points out this excellent article about the Zenith Transoceanic\u00a0by\u00a0Paul Litwinovich of WSHU.\u00a0 Litwinovich's article covers a brief history\u00a0of the Zenith Transoceanic series including photos from his amazing collection (check out his model 7G605 above). Here's a short clip from his full article:\u2026","rel":"","context":"In "Articles"","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"Zenith Model 7G605, the first in the line of Trans-Oceanic radios. Credit P. Litwinovich collection via WSHU","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/03\/Zenith-Paul-Litwinovich.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/03\/Zenith-Paul-Litwinovich.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/03\/Zenith-Paul-Litwinovich.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":17852,"url":"https:\/\/swling.com\/blog\/2016\/03\/paul-litwinovich-on-the-life-decline-and-possible-rebirth-of-am\/","url_meta":{"origin":30824,"position":1},"title":"Paul Litwinovich on “The Life, Decline and Possible Rebirth of AM”","author":"Thomas","date":"March 20, 2016","format":false,"excerpt":"Many thanks to the SWLing Post reader who noted this latest post by Paul Litwinovich at WSHU (Paul is frequently referenced here on the Post). A short excerpt: \"AM occurs elsewhere in nature. A lightning strike or manmade electrical discharge will produce a burst of electrical noise that varies in\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"Zenith-Shuttle-Dial","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/Zenith-Shuttle-Dial-1024x678.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/Zenith-Shuttle-Dial-1024x678.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/Zenith-Shuttle-Dial-1024x678.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":10790,"url":"https:\/\/swling.com\/blog\/2014\/09\/paul-litwinovichs-vintage-radio-series\/","url_meta":{"origin":30824,"position":2},"title":"Paul Litwinovich’s Vintage Radio series","author":"Thomas","date":"September 12, 2014","format":false,"excerpt":"Many thanks to SWLing Post reader, Richard Cuff, for pointing out\u00a0a brilliant series of articles called Vintage Radio\u00a0by WSHU Chief Engineer,\u00a0Paul Litwinovich. Here are links to each article written thus far in the Vintage Radio series. If you would like to start at the beginning of the series, go to\u2026","rel":"","context":"In "Boat Anchors"","block_context":{"text":"Boat Anchors","link":"https:\/\/swling.com\/blog\/category\/boat-anchors-2\/"},"img":{"alt_text":"SX-99-Dial","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":54704,"url":"https:\/\/swling.com\/blog\/2022\/11\/radio-physics-explained-the-luxemburg-gorky-effect\/","url_meta":{"origin":30824,"position":3},"title":"Radio physics explained: The Luxemburg-Gorky effect","author":"13dka","date":"November 21, 2022","format":false,"excerpt":"Get it while you still can: The Luxemburg-Gorky effect by 13dka \"In radiophysics, the Luxemburg-Gorky effect (named after Radio Luxemburg and the city of Gorky (Nizhny Novgorod)) is a phenomenon of cross modulation between two radio waves, one of which is strong, passing through the same part of a medium,\u2026","rel":"","context":"In "Longwave"","block_context":{"text":"Longwave","link":"https:\/\/swling.com\/blog\/category\/longwave\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/LE-JunglinsterTransmitter680-300x182.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/LE-JunglinsterTransmitter680-300x182.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/LE-JunglinsterTransmitter680-300x182.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":24283,"url":"https:\/\/swling.com\/blog\/2017\/02\/haarp-campaign-update-luxembourg-broadcast-artificial-aurora\/","url_meta":{"origin":30824,"position":4},"title":"HAARP campaign update: Luxembourg Broadcast & Artificial Aurora","author":"Thomas","date":"February 19, 2017","format":false,"excerpt":"Many thanks to Chris Fallen (KL3WX), Assistant research professor in the University of Alaska Fairbanks Geophysical \u2013 Space Physics group\u00a0, who shares the following update from the High Frequency Active Auroral Research Program (HAARP): Campaign time! Experiments begin in the mid morning 19 February Alaska Standard Time (AKST) and continue\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/HAARP.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/HAARP.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/HAARP.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/HAARP.jpg?resize=700%2C400 2x"},"classes":[]},{"id":16479,"url":"https:\/\/swling.com\/blog\/2015\/12\/mediumwave-france-luxembourg-and-germany-go-silent\/","url_meta":{"origin":30824,"position":5},"title":"Mediumwave: France, Luxembourg and Germany go silent","author":"Thomas","date":"December 31, 2015","format":false,"excerpt":"On Facebook, Mike Terry reminded me: \"Tomorrow France, Germany and Luxembourg go very quiet on medium wave.\" He's right--there will be more empty space on the AM broadcast\u00a0band for those living in or near France, Germany or Luxembourg. I\u00a0hope\u00a0there are Post readers out there who might be able to make\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"france-germany","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/france-germany.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/france-germany.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/france-germany.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/30824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=30824"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/30824\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=30824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=30824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=30824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}