{"id":33217,"date":"2018-07-16T18:25:56","date_gmt":"2018-07-16T22:25:56","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=33217"},"modified":"2018-07-17T06:30:30","modified_gmt":"2018-07-17T10:30:30","slug":"shortwave-trading-part-iv-final-post","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2018\/07\/shortwave-trading-part-iv-final-post\/","title":{"rendered":"Shortwave Trading Part IV (Final Post)"},"content":{"rendered":"

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

(Source:\u00a0SNIPER IN MAHWAH & FRIENDS<\/a>)<\/p>\n

After my first few public posts about shortwave trading, I gradually realized that I\u2019d inadvertently created a worldwide network of deputy antenna sleuths. This is the final post in the Shortwave Trading series since the terms of my forthcoming employment agreement will prohibit me from future public talk on the technology of trading. I want to leave behind details on some of the research tools and techniques I\u2019ve used. This is how the sausage is made.<\/p>\n

I\u2019ll also leave a list of locations that may be worth watching. Some may be near you. Even if I can\u2019t talk about what\u2019s found in the future, maybe you can? The comments below might be a good place to document new findings until there\u2019s a better place offered.<\/p>\n

In addition, following sections will set out the criteria I\u2019ve used to assess the confidence that a shortwave trading site has been found, give example FCC searches, list links to web-based research tools I\u2019ve found useful, give some tips on research techniques, and acknowledge the many people behind the scenes who\u2019ve contributed to this work.<\/p>\n

Plausibility Criteria<\/h3>\n

If you find something that looks like a shortwave trading site, how confident can you be that you\u2019ve found the real thing and not a landing beacon for body-snatching space aliens? Since a shortwave trading site exists to link a local market to a remote market, I can think of two things that set a minimum bar for plausibility:<\/p>\n

    \n
  1. Visual evidence of a shortwave antenna with a heading toward a remote market. Previous posts in this series have shown many shortwave antennas you can use as models of what to expect. Examples have included headings around 50\u00ba from Chicago which cover Europe.<\/li>\n
  2. A path for connectivity to a local market. Visual evidence of this can be a microwave dish pointed in the direction of a local market.[…]<\/li>\n<\/ol>\n<\/blockquote>\n

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

    (Source:\u00a0SNIPER IN MAHWAH & FRIENDS) After my first few public posts about shortwave trading, I gradually realized that I\u2019d inadvertently created a worldwide network of deputy antenna sleuths. This is the final post in the Shortwave Trading series since the terms of my forthcoming employment agreement will prohibit me from future public talk on the […]<\/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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,43],"tags":[34,7024,4655],"class_list":["post-33217","post","type-post","status-publish","format-standard","hentry","category-news","category-shortwave-radio","tag-shortwave","tag-shortwave-trading","tag-why-shortwave"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-8DL","jetpack-related-posts":[{"id":33193,"url":"https:\/\/swling.com\/blog\/2018\/07\/shortwave-trading-part-iii\/","url_meta":{"origin":33217,"position":0},"title":"Shortwave Trading Part III","author":"Thomas","date":"July 15, 2018","format":false,"excerpt":"(Source:\u00a0SNIPER IN MAHWAH & FRIENDS) I\u2019ve heard that years ago, there was a stable business selling microwave data radios to local governments for networking their offices. Then the traders discovered microwave and everything changed for the radio vendors. Their new customers weren\u2019t so much concerned about the cost\u2014they just wanted\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\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":31945,"url":"https:\/\/swling.com\/blog\/2018\/05\/mystery-traders-using-shortwave-to-cross-oceans-with-less-latency-than-any-fiber\/","url_meta":{"origin":33217,"position":1},"title":"Mystery: Traders using “shortwave to cross oceans with less latency than any fiber”","author":"Thomas","date":"May 9, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0London Shortwave,\u00a0who shares this fascinating article which takes a look at\u00a0high-frequency trading firms: (Source: Sniper in Mahwah & Friends) Shortwave Trading | Part I | the West Chicago Tower Mystery Since 2014 this blog has extensively covered the wireless networks built by high-frequency trading (HFT)\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\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":32745,"url":"https:\/\/swling.com\/blog\/2018\/06\/shortwave-trading-part-ii\/","url_meta":{"origin":33217,"position":2},"title":"Shortwave Trading Part II","author":"Thomas","date":"June 10, 2018","format":false,"excerpt":"Last month, we posted a link to an article that explained why traders might use shortwave radio for high-speed, faster-than-optical-fiber communications. The article by Bob Van Valzah originally appeared on the blog,\u00a0Sniper in Mahwah & Friends\u00a0where they've just posted part two in the series: I have previously claimed that trading\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\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":57216,"url":"https:\/\/swling.com\/blog\/2023\/07\/radio-waves-fcc-comments-on-shortwave-trading-qtc-ebook-golden-years-and-sdrconnect-demo\/","url_meta":{"origin":33217,"position":3},"title":"Radio Waves: FCC Comments on Shortwave Trading, QTC eBook, Golden Years, and SDRconnect Demo","author":"Thomas","date":"July 13, 2023","format":false,"excerpt":"Radio Waves:\u00a0 Stories Making Waves in the World of Radio Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a collection of links to interesting stories making waves in the world of radio.\u00a0Enjoy! Many thanks to SWLing Post contributors Ron Chester, Benn Kobb, Chuck Rippel, Pietschman, Dennis Dura, and Dave Zantow for the\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\/2018\/07\/Boat-Anchor-Dial-2-1024x678.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/Boat-Anchor-Dial-2-1024x678.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/Boat-Anchor-Dial-2-1024x678.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":62569,"url":"https:\/\/swling.com\/blog\/2025\/04\/radio-world-three-mysterious-new-shortwave-stations-approved-in-the-u-s\/","url_meta":{"origin":33217,"position":4},"title":"Radio World: Three Mysterious New Shortwave Stations Approved in the U.S.","author":"Thomas","date":"April 11, 2025","format":false,"excerpt":"From Radio World: In a rare move, the FCC has approved two new construction permits and granted a full license for international shortwave broadcasting\u2014prompting questions about their true purpose. All three applicants\u2014DPA Mac, Parable Broadcasting, and Turms Tech\u2014claim intentions to use the DRM standard, yet past filings and meeting summaries\u2026","rel":"","context":"In "DRM"","block_context":{"text":"DRM","link":"https:\/\/swling.com\/blog\/category\/drm\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":54620,"url":"https:\/\/swling.com\/blog\/2022\/11\/high-frequency-trading-service-fcc-posts-two-lobbying-documents-by-dpa-mac\/","url_meta":{"origin":33217,"position":5},"title":"High-Frequency Trading Service: FCC posts two lobbying documents by DPA Mac","author":"Thomas","date":"November 11, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Benn Kobb (AK4AV), who notes that the FCC has posted for public inspection two lobbying documents by DPA Mac, applicant for a new DRM HF broadcast station with 2 kW of transmitter output power. Benn notes: \"Regardless of DPA's claims that its broadcasts will\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\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/11\/Black-and-White-Spectrum-Dark-1.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/33217","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=33217"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/33217\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=33217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=33217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=33217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}