{"id":15168,"date":"2015-10-15T08:07:41","date_gmt":"2015-10-15T12:07:41","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=15168"},"modified":"2015-10-15T08:07:41","modified_gmt":"2015-10-15T12:07:41","slug":"help-identifying-longwave-transmitters","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2015\/10\/help-identifying-longwave-transmitters\/","title":{"rendered":"Help identifying longwave transmitters"},"content":{"rendered":"

\"SX-99-Dial-Nar\"<\/a><\/p>\n

As many of you know, I’ve been catching up on correspondence recently as the past few weeks have been quite hectic.\u00a0<\/em><\/p>\n

SWLing Post<\/em> reader,\u00a0Andy (G0FTD)<\/a>, sent the following message several weeks ago, but is still seeking help:<\/p>\n

I came across your website recently, so good to read something dealing\u00a0with proper SWLing!<\/p>\n

Last night I set up an experiment on 279Khz.<\/p>\n

This is because of my interest in something called QRSS beacons in \u00a0amateur radio. I use the HF bands, but recently became interested in the LF \u00a0bands, 136 \/ 475Khz amateur bands and propagation.<\/p>\n

I thought it would be interesting to test for the times that the day \/ nightime\u00a0occurs at LF.<\/p>\n

To do this I decided to use 279Khz, which by rights only has 2 transmitters\u00a0on them, and at a convenient distance.<\/p>\n

The only list I have says that Belarus and Turkey operate transmitters,\u00a0so in theory I should only see 2 traces on my Argo software.<\/p><\/blockquote>\n

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

But I was surprised to see 3 traces.<\/p>\n

Two of them have about a 1Hz offset to the main one, exactly on 279Khz.<\/p>\n

I wonder if your readers can confirm the transmitters ?<\/p>\n

Maybe Belarus is operating two TX sites with the offset, and the other\u00a0is Turkey ?<\/p>\n

You can see that the two offset ones go QRT at the same time.<\/p><\/blockquote>\n

If you can help Andy, please comment. Again, Andy, apologies for the delay in posting your inquiry!<\/p>\n","protected":false},"excerpt":{"rendered":"

As many of you know, I’ve been catching up on correspondence recently as the past few weeks have been quite hectic.\u00a0 SWLing Post reader,\u00a0Andy (G0FTD), sent the following message several weeks ago, but is still seeking help: I came across your website recently, so good to read something dealing\u00a0with proper SWLing! Last night I set […]<\/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":[2436,3],"tags":[4322,4123,4321],"class_list":["post-15168","post","type-post","status-publish","format-standard","hentry","category-longwave","category-news","tag-andy-g0ftd","tag-longwave","tag-lw"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-3WE","jetpack-related-posts":[{"id":21827,"url":"https:\/\/swling.com\/blog\/2016\/10\/lf-closure-in-ireland-postponed-yet-again\/","url_meta":{"origin":15168,"position":0},"title":"LF Closure in Ireland Postponed Yet Again","author":"Robert Gulley","date":"October 18, 2016","format":false,"excerpt":"In yet another reversal concerning the fate of Longwave in the UK, this was reported in Radio Survivor Oct 10: Ireland\u2019s Longwave Station RT\u00c9 252 Spared from Imminent Closure By Paul Riismandel on October 10, 2016 in International, Radio Bands Listeners located in the U.K. who enjoy Ireland\u2019s RT\u00c9 252\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"rte","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/rte.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":24462,"url":"https:\/\/swling.com\/blog\/2017\/03\/hro-consignment-deal-heros-technology-vlf-lf-up-converter\/","url_meta":{"origin":15168,"position":1},"title":"HRO consignment deal: HEROS technology VLF-LF up-converter","author":"Thomas","date":"March 1, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ron, who is a fan of longwave DX and notes that HRO has a Heros Technology VLF\/LF up-converter on consignment\/used. Ron mentions that the $140 price tag is quite a bargain for customers in the US market. Ron notes:: Here is a Link to\u2026","rel":"","context":"In "Accessories"","block_context":{"text":"Accessories","link":"https:\/\/swling.com\/blog\/category\/accessories\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/03\/Heros-Technology-Converter.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":50224,"url":"https:\/\/swling.com\/blog\/2021\/09\/hidden-connector-on-tecsun-pl-660\/","url_meta":{"origin":15168,"position":2},"title":"Hidden connector on Tecsun PL-660?","author":"Thomas","date":"September 15, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Andy (G0FTD), who writes: Thomas Not sure if you've come across this, but earlier when I was cleaning my Tecsun PL660 and took the main tuning knob off the spindle, I discovered what looked like 4 holes of a hidden connector behind it !\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\/2014\/05\/ECSS-PL-660.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/ECSS-PL-660.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/ECSS-PL-660.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/ECSS-PL-660.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":31743,"url":"https:\/\/swling.com\/blog\/2018\/04\/grimeton-radio-saq-lf-transmitter-on-the-air-may-1-2018\/","url_meta":{"origin":15168,"position":3},"title":"Grimeton Radio \/ SAQ LF transmitter on the air May 1, 2018","author":"Thomas","date":"April 22, 2018","format":false,"excerpt":"(Source: ARRL via Mike Hansgen) Low-frequency World Heritage Grimeton Radio Station, SAQ, will transmit from Sweden on May 1 as participation in the European Route of Industrial Heritage\u2019s \u201cWork It Out\u201d observance. \u201cAs part of the event, we plan for the first SAQ transmission since 2016,\u201d said Lars Kalland, SM6NM.\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\/2012\/10\/SAQ%2Bsandare_svartvitt.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":61456,"url":"https:\/\/swling.com\/blog\/2024\/12\/wi2xlq-brian-justins-annual-longwave-broadcast-starting-christmas-eve-and-new-years-eve\/","url_meta":{"origin":15168,"position":4},"title":"WI2XLQ: Brian Justin\u2019s annual longwave broadcast starting Christmas Eve and New Year\u2019s Eve","author":"Thomas","date":"December 20, 2024","format":false,"excerpt":"Many thanks to SWLing Post contributor Brian (WA1ZMS), who writes: What has now become an annual LF listening event, WI2XLQ (an FCC Experimental Callsign) will once again be QRV for a recreation of the alleged first voice transmission made by Reginald Fessenden in 1909. Transmission on 486kHz in full carrier\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\/2017\/12\/reginald-fessenden-1906_sn635.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/reginald-fessenden-1906_sn635.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/reginald-fessenden-1906_sn635.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":46758,"url":"https:\/\/swling.com\/blog\/2020\/12\/david-shares-a-recording-of-the-rte-longwave-interval-signal\/","url_meta":{"origin":15168,"position":5},"title":"David shares a recording of the RTE longwave interval signal","author":"Thomas","date":"December 2, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, David Shannon, who writes: Hi Thomas A little treat for my fellow readers of your blog (is that the right word?). The RTE interval signal, a rendition of O'Donnell Ab\u00fa (\"O'Donnell Forever\"), that is played at 0529 daily, apart from the weekend when it's\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\/2020\/12\/RTE-Radio-Logo.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/15168","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=15168"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/15168\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=15168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=15168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=15168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}