{"id":9948,"date":"2014-06-19T09:00:18","date_gmt":"2014-06-19T13:00:18","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=9948"},"modified":"2017-02-16T13:27:19","modified_gmt":"2017-02-16T17:27:19","slug":"testing-sdrs-noise-reduction-in-a-london-park","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2014\/06\/testing-sdrs-noise-reduction-in-a-london-park\/","title":{"rendered":"Testing SDR#&#8217;s noise reduction in a London park"},"content":{"rendered":"<p><a href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/06\/LondonShortwave-ParkSDR.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9962\" src=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/06\/LondonShortwave-ParkSDR.jpg\" alt=\"LondonShortwave-ParkSDR\" width=\"575\" height=\"766\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/06\/LondonShortwave-ParkSDR.jpg 575w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/06\/LondonShortwave-ParkSDR-225x300.jpg 225w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/06\/LondonShortwave-ParkSDR-75x100.jpg 75w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/a><\/p>\n<p>Yesterday, <em>SWLing Post<\/em> reader\u00a0<a title=\"London Shortwave\" href=\"https:\/\/twitter.com\/LondonShortwave\" target=\"_blank\">London Shortwave<\/a> took his laptop, FunCube Dongle Pro+, and 6 meter long wire antenna to a local park\u00a0where he tested <a title=\"SDR# on the web\" href=\"http:\/\/sdrsharp.com\/#\" target=\"_blank\">SDR#<\/a>&#8216;s new IF noise reduction.<\/p>\n<p><a title=\"Link to the YouTube video\" href=\"https:\/\/www.youtube.com\/watch?v=8mQjycXo9nw&amp;feature=youtu.be\" target=\"_blank\">He made the following screencast\/video<\/a>\u00a0where he toggles the IF noise reduction feature while receiving the BBC World Service&#8217;s Pashto language service on shortwave:<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/8mQjycXo9nw\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Most impressive! Indeed, I believe SDR#&#8217;s noise reduction might rival that of OEM applications. While I&#8217;m not the biggest fan of noise reduction for everyday use (due to inherent digital artifacts) it is a <em>valuable<\/em> tool when noise levels are high.<\/p>\n<p><strong>\u00a0<a title=\"@LondonShortwave\" href=\"https:\/\/twitter.com\/LondonShortwave\" target=\"_blank\">Click here to follow @LondonShortwave<\/a><\/strong> on Twitter.<\/p>\n<p>If you would like to experiment with <strong>SDR#<\/strong>, <a title=\"SDR# downloads\" href=\"http:\/\/sdrsharp.com\/#\" target=\"_blank\">click here to download your free copy<\/a>. SDR# has a number of <a title=\"SDR# plugins\" href=\"http:\/\/sdrsharp.com\/#plugins\" target=\"_blank\">additional plugins<\/a> and dedicated users\/developers who communicate via\u00a0this\u00a0<a href=\"https:\/\/uk.groups.yahoo.com\/neo\/groups\/SDRSharp\/info\" target=\"_blank\">this Yahoo! Group<\/a>.<\/p>\n<p>Many thanks to\u00a0<a title=\"@LondonShortwave\" href=\"https:\/\/twitter.com\/LondonShortwave\" target=\"_blank\">@LondonShortwave<\/a>.<\/p>\n<p>Any other readers using SDR#? Please comment.<\/p>\n<p><script src=\"\/\/platform.twitter.com\/widgets.js\" async=\"\" charset=\"utf-8\"><\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yesterday, SWLing Post reader\u00a0London Shortwave took his laptop, FunCube Dongle Pro+, and 6 meter long wire antenna to a local park\u00a0where he tested SDR#&#8216;s new IF noise reduction. He made the following screencast\/video\u00a0where he toggles the IF noise reduction feature while receiving the BBC World Service&#8217;s Pashto language service on shortwave: Most impressive! Indeed, I [&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":true,"_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":[627,3,26,43,158],"tags":[2504,3026,3028,2704,3025,3027,157,3024],"class_list":["post-9948","post","type-post","status-publish","format-standard","hentry","category-how-to","category-news","category-radios","category-shortwave-radio","category-software-defined-radio","tag-londonshortwave","tag-dnr","tag-if-noise-reduction","tag-london-shortwave","tag-noise-reduction","tag-nr","tag-sdr","tag-sdr-sharp"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-2As","jetpack-related-posts":[{"id":49456,"url":"https:\/\/swling.com\/blog\/2021\/07\/guest-post-recording-music-on-shortwave-part-2-weak-signal-recovery\/","url_meta":{"origin":9948,"position":0},"title":"Guest Post: Recording Music on Shortwave Part 2 \u2013 Weak signal recovery","author":"Thomas","date":"July 2, 2021","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor,\u00a0TomL, who shares the following guest post: Recording Music on Shortwave Part 2 \u2013 Weak signal recovery by TomL The QRM noise cloud surrounding my condominium motivated my first foray into noise reduction software to find a little relief (Please refer to Part 1 posted here) using\u2026","rel":"","context":"In &quot;Guest Posts&quot;","block_context":{"text":"Guest Posts","link":"https:\/\/swling.com\/blog\/category\/guest-posts\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/07\/WindowsSonic.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/07\/WindowsSonic.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/07\/WindowsSonic.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":54104,"url":"https:\/\/swling.com\/blog\/2022\/09\/how-jake-configures-sdr-to-listen-to-encore-classical-music\/","url_meta":{"origin":9948,"position":1},"title":"How Jake configures SDR# to listen to Encore classical music","author":"Thomas","date":"September 19, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Jake Brodsky (AB3A), who shares the following guest post: How I Listen to Encore on Radio Tumbril Listening to Classical music on shortwave is a challenge. It has loud and soft parts to the music. There may be selective fading. It isn\u2019t a simple\u2026","rel":"","context":"In &quot;Articles&quot;","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/09\/LOGO-Encore-Tumbril-292-WRMI-SWLING-copy.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":48848,"url":"https:\/\/swling.com\/blog\/2021\/05\/tomls-guide-to-making-and-optimizing-shortwave-radio-sdr-music-recordings\/","url_meta":{"origin":9948,"position":2},"title":"TomL&#8217;s guide to making and optimizing shortwave radio SDR music recordings","author":"Thomas","date":"May 9, 2021","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor,\u00a0TomL, who shares the following guest post: Recording Music on Shortwave by TomL I recently became curious about the seasonal music updates posted by Alan Roe.\u00a0 It is a nicely detailed list of musical offerings to be heard.\u00a0 Kudos to Alan who has spent the time and\u2026","rel":"","context":"In &quot;Guest Posts&quot;","block_context":{"text":"Guest Posts","link":"https:\/\/swling.com\/blog\/category\/guest-posts\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/05\/noiseprofile.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/05\/noiseprofile.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/05\/noiseprofile.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/05\/noiseprofile.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":63912,"url":"https:\/\/swling.com\/blog\/2025\/09\/noise-reduction-ideas-via-hackaday-electronics-unmessed\/","url_meta":{"origin":9948,"position":3},"title":"Noise-Reduction Ideas via Hackaday &#038; Electronics Unmessed","author":"Thomas","date":"September 9, 2025","format":false,"excerpt":"Many thanks to SWLing Post contributor Dennis Dura for sharing this excellent Hackaday feature: Quieting That Radio. If you\u2019ve ever struggled to hear weak signals through modern RFI, this piece, featuring content from Electronics Unmessed, is well worth checking out. It explores the hidden interference SDR setups often face and\u2026","rel":"","context":"In &quot;News&quot;","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-Digital-Modes-e1482065447566.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":12910,"url":"https:\/\/swling.com\/blog\/2015\/04\/london-shortwave-updates-his-portable-sdr\/","url_meta":{"origin":9948,"position":4},"title":"London Shortwave updates his portable SDR","author":"Thomas","date":"April 4, 2015","format":false,"excerpt":"SWLing Post contributor, London Shortwave, has updated his portable SDR setup to achieve a lower noise floor by implementing a Wellbrook UMB130 balun. Click here to read his post.","rel":"","context":"In &quot;Articles&quot;","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"London-Shortwave-Portable-SDR","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/04\/London-Shortwave-Portable-SDR.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/04\/London-Shortwave-Portable-SDR.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/04\/London-Shortwave-Portable-SDR.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":30277,"url":"https:\/\/swling.com\/blog\/2018\/01\/ivan-compares-the-airspy-hf-to-the-kiwisdr\/","url_meta":{"origin":9948,"position":5},"title":"Ivan compares the AirSpy HF+ to the KiwiSDR","author":"Thomas","date":"January 14, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Ivan (NO2CW), who writes: I have been running a public Kiwisdr server for a while and yesterday decided to plug in the new Airspy HF + into the same antenna for a side to side comparison. The antenna is an 80m dipole and the test\u2026","rel":"","context":"In &quot;News&quot;","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\/01\/Airspy-waterfall.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/01\/Airspy-waterfall.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/01\/Airspy-waterfall.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/01\/Airspy-waterfall.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/9948","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=9948"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/9948\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=9948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=9948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=9948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}