{"id":30760,"date":"2018-02-06T08:44:50","date_gmt":"2018-02-06T12:44:50","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=30760"},"modified":"2018-02-06T08:44:50","modified_gmt":"2018-02-06T12:44:50","slug":"can-you-help-luke-identify-this-radio-noise","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2018\/02\/can-you-help-luke-identify-this-radio-noise\/","title":{"rendered":"Can you help Luke identify this radio noise?"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-24367\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish.jpg 800w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish-300x169.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish-768x432.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/02\/Sony-SW100-Dial-6160-Loomish-624x351.jpg 624w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Many thanks to <em>SWLing Post<\/em> contributor, Luke Perry, who writes:<\/p>\n<blockquote><p>I am experiencing a issue with my shortwave reception at my part-time home. I have been helping out my mother so I have brought over my Sony portable, along with the Sony active antenna. I have a constant \u2018clicking\u2019 sound starting at about 5 kHz or thereabouts that make listening unbearable. As the video shows the problem is non-existent below 4 kHz. I tried moving the radio throughout the house thinking it could be something in the room and still get the same interference.<\/p>\n<p>I was hoping that the filter on the active antenna would help but it does little to remedy the problem. I have no issues with MW or FM reception at all.<\/p>\n<p>I have made a short YouTube video to document the problem in the hopes that one of the blog readers can identify it. I looked online at other instances of RFI and I could not find one that is similar. Hope that someone can help me!<\/p><\/blockquote>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/OcEWAkdfmWw?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/youtu.be\/OcEWAkdfmWw\" target=\"_blank\" rel=\"noopener\">Click here to view on YouTube.<\/a><\/p>\n<p>After listening to the first few seconds of your recording, I thought it sounded a bit like an electric fence controller. However the interval between pops is nearly random, which suggests a different source. I suppose it&#8217;s possible a faulty fence controller could do this. I believe the only way you could defeat this noise (without shutting it down at the source) would be to use a radio with a durable noise blanker. Of course, I know of no portable radios with an NB function (though most SDRs and tabletop receivers include an NB).<\/p>\n<p><strong><em>Post<\/em> readers<\/strong>: Can help Luke ID the source of this noise?\u00a0 Does it sound familiar to you? Please comment!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Luke Perry, who writes: I am experiencing a issue with my shortwave reception at my part-time home. I have been helping out my mother so I have brought over my Sony portable, along with the Sony active antenna. I have a constant \u2018clicking\u2019 sound starting at about 5 kHz [&hellip;]<\/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":[3,196,43],"tags":[2222,5221,2650,4089,2651,1296,453,3395],"class_list":["post-30760","post","type-post","status-publish","format-standard","hentry","category-news","category-qrm","category-shortwave-radio","tag-interference","tag-luke-perry","tag-noise","tag-qrm","tag-radio-frequency-interference","tag-rf-noise","tag-rfi","tag-sony-icf-sw100"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-808","jetpack-related-posts":[{"id":20733,"url":"https:\/\/swling.com\/blog\/2016\/08\/200-metre-longwire-radio-verdad-4054-9-khz-guatemala-unprecedented-reception-in-oxford-uk\/","url_meta":{"origin":30760,"position":0},"title":"200 metre longwire: Radio Verdad 4054.9 kHz, Guatemala, unprecedented reception in Oxford, UK","author":"Clint Gouveia","date":"August 22, 2016","format":false,"excerpt":"Radio Verdad, Chiquimula,\u00a0Guatemala is quite a regular catch at home, however,\u00a0their modulation is nearly always weak as the carrier\u00a0struggles to lift above the ubiquitous blanket of local QRM. Another issue with hearing\u00a0this station is the\u00a0digital utility\u00a0signal just above 4055 kHz, thus requiring LSB reception to reject the adjacent noise. This\u2026","rel":"","context":"In &quot;Antennas&quot;","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"verdad","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/verdad.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/verdad.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/verdad.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/verdad.jpg?resize=700%2C400 2x"},"classes":[]},{"id":20626,"url":"https:\/\/swling.com\/blog\/2016\/08\/dxpedition-first-test-of-deployable-200-metre-longwire-antenna-by-oxford-shortwave-log\/","url_meta":{"origin":30760,"position":1},"title":"DX&#8217;pedition: first test of deployable 200 metre longwire antenna by Oxford Shortwave Log","author":"Clint Gouveia","date":"August 15, 2016","format":false,"excerpt":"A view looking toward \u00a0Oxford Shortwave Log\u00a0DX'pedition territory; a wood in rural Oxfordshire Regular viewers of my youtube channel will know that I spend much of my shortwave listening time out in an Oxfordshire wood where QRM is negligable and Tropical Band stations can be heard with, at times, unprecidented\u2026","rel":"","context":"In &quot;Antennas&quot;","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":20853,"url":"https:\/\/swling.com\/blog\/2016\/08\/brazilian-dx-heard-in-oxford-uk-with-venerable-sony-icf-2001d\/","url_meta":{"origin":30760,"position":2},"title":"Brazilian DX heard in Oxford UK, with venerable Sony ICF-2001D","author":"Clint Gouveia","date":"August 27, 2016","format":false,"excerpt":"Hi there, I thought I would share some Brazilian\u00a0shortwave catches with you, obtained using my Sony ICF-2001D receiver and 200 metre experimental longwire. The first is Radio Bandeirantes, Sao Paolo\u00a0on\u00a09645.4 kHz. This is a station that I've only heard once or twice previously, but was received with excellent signal clarity\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.wallpaperfolder.com\/f\/78EB3BB1EE5F\/stock-photos-map-south-america.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":45271,"url":"https:\/\/swling.com\/blog\/2020\/09\/cant-receive-anything-on-your-new-shortwave-radio-read-this\/","url_meta":{"origin":30760,"position":3},"title":"Can&#8217;t receive anything on your new shortwave radio&#8211;? Read this.","author":"Thomas","date":"September 10, 2020","format":false,"excerpt":"This morning, I received a question from Andrew, an SWLing Post reader in the UK.\u00a0 Andrew writes: May I ask a question please? I am very much a newbie to this. I am not really interested in FM, but I would like to listen to international stations on SW, utilities\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/05\/PL-680-BBC-Click-Frequency.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/05\/PL-680-BBC-Click-Frequency.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/05\/PL-680-BBC-Click-Frequency.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/05\/PL-680-BBC-Click-Frequency.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":17569,"url":"https:\/\/swling.com\/blog\/2016\/03\/playing-music-with-computer-emitted-interference\/","url_meta":{"origin":30760,"position":4},"title":"Playing music with computer-emitted interference","author":"Thomas","date":"March 6, 2016","format":false,"excerpt":"SWLing Post reader, Chris Smolinski, writes: Here's my Mac Book Pro (2010 model) playing Mary Had A Little Lamb over the radio, by modulating the RFI (Radio Frequency Interference) produced by it and other computers. As picked up on a Sony 7600G receiver. I found the best reception was on\u2026","rel":"","context":"In &quot;Funny&quot;","block_context":{"text":"Funny","link":"https:\/\/swling.com\/blog\/category\/funny\/"},"img":{"alt_text":"RFI-Sony-7600G","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/03\/RFI-Sony-7600G.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/03\/RFI-Sony-7600G.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/03\/RFI-Sony-7600G.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":11118,"url":"https:\/\/swling.com\/blog\/2014\/10\/video-how-to-fight-radio-noise-in-urban-areas\/","url_meta":{"origin":30760,"position":5},"title":"Video: How to fight radio noise in urban areas","author":"Thomas","date":"October 18, 2014","format":false,"excerpt":"London Shortwave, a regular contributor to the SWLing Post,\u00a0lives in London, England and copes with serious amounts of radio noise (QRM)\u00a0at his home. Unlike many urban radio listeners, the QRM didn't chase him away from the hobby, rather he looked at\u00a0it as a challenge. Besides taking his radio kit outdoors\u2026","rel":"","context":"In &quot;How To&quot;","block_context":{"text":"How To","link":"https:\/\/swling.com\/blog\/category\/how-to\/"},"img":{"alt_text":"London","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/London.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/London.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/London.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/30760","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=30760"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/30760\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=30760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=30760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=30760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}