{"id":39021,"date":"2019-08-15T09:12:00","date_gmt":"2019-08-15T13:12:00","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=39021"},"modified":"2019-08-15T09:12:00","modified_gmt":"2019-08-15T13:12:00","slug":"airspy-hf-vs-hf-discovery-ivans-blind-daytime-propagation-comparison","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2019\/08\/airspy-hf-vs-hf-discovery-ivans-blind-daytime-propagation-comparison\/","title":{"rendered":"AirSpy HF+ vs. HF+ Discovery: Ivan&#8217;s blind daytime propagation comparison"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/aurspy-hfplus_discovery.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-37968\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/aurspy-hfplus_discovery.png\" alt=\"\" width=\"475\" height=\"300\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/aurspy-hfplus_discovery.png 475w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/aurspy-hfplus_discovery-300x189.png 300w\" sizes=\"auto, (max-width: 475px) 100vw, 475px\" \/><\/a><\/p>\n<p>Many thanks to <em>SWLing Post<\/em> contributor, Ivan NO2CW, who shares the following:<\/p>\n<blockquote><p>I did this video where I compared the two Airspy editions [HF+ and the new HF+ Discovery] only calling them Receiver 1 and Receiver 2:<\/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\/VV4nOWkxACU?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\/VV4nOWkxACU\" target=\"_blank\" rel=\"noopener noreferrer\">Click here to view on YouTube.<\/a><\/p>\n<blockquote><p>Using the same W6LVP loop. 3 PM local time daytime propagation. Testing on Medium Wave and Short Wave, no VHF. AM broadcast signals only.<\/p><\/blockquote>\n<p>Ivan also included an image comparing the size of the HF+ discovery with other popular SDRs:<\/p>\n<div id=\"attachment_39022\" style=\"width: 610px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-39022\" class=\"wp-image-39022 size-full\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg\" alt=\"\" width=\"600\" height=\"870\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg 600w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs-207x300.jpg 207w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><p id=\"caption-attachment-39022\" class=\"wp-caption-text\">From top to bottom: the Microtelecom Perseus, SDRplay RSP, AirSpy HF+, Airspy HF+ Discovery, and the RTL-SDR.com SDR dongle.\u00a0<\/p><\/div>\n<p>When I demo the <a href=\"https:\/\/swling.com\/blog\/2019\/05\/the-airspy-hf-discovery-a-new-high-performance-sdr\/\">AirSpy HF+<\/a> to radio clubs, folks are amazed that such a tiny SDR can provide benchmark performance. It&#8217;s hard to believe the HF+ Discovery might even provide <em>more<\/em> performance from an even <em>smaller<\/em> package!<\/p>\n<p>Thanks, Ivan for sharing these comparisons!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Ivan NO2CW, who shares the following: I did this video where I compared the two Airspy editions [HF+ and the new HF+ Discovery] only calling them Receiver 1 and Receiver 2: Click here to view on YouTube. Using the same W6LVP loop. 3 PM local time daytime propagation. Testing [&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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[545,836,3,43,158],"tags":[3724,6613,7791,7940,5391],"class_list":["post-39021","post","type-post","status-publish","format-standard","hentry","category-ham-radio","category-new-products","category-news","category-shortwave-radio","category-software-defined-radio","tag-airspy","tag-airspy-hf","tag-airspy-hf-discovery","tag-hf-discovery","tag-ivan-cholakov-no2cw"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-a9n","jetpack-related-posts":[{"id":57725,"url":"https:\/\/swling.com\/blog\/2023\/09\/ivan-compares-the-new-rtl-sdr-v4-and-the-airspy-discovery-hf\/","url_meta":{"origin":39021,"position":0},"title":"Ivan compares the new RTL-SDR V4 and the Airspy Discovery HF+","author":"Thomas","date":"September 7, 2023","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan (NO2CW), who writes: I ran a test of weak signals RTL-SDR v4 against Airspy HF+ Discovery. Using sdr # and a few gain adjustments particular to each of the receivers. I ran the test at approximately 9 pm local time using the same\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":31994,"url":"https:\/\/swling.com\/blog\/2018\/05\/ivan-performs-two-tests-with-the-airspy-hf\/","url_meta":{"origin":39021,"position":1},"title":"Ivan performs two tests with the AirSpy HF+","author":"Thomas","date":"May 11, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Ivan Cholakov (NO2CW), who shares the following: Thomas, there has been a lot of discussions regarding Airspy HF+ ever since it came out - heated exchanges regarding comparisons with peers, modifications and firmware updates. I took my Airspy HF+ and conducted two tests with it:\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\/2018\/05\/Airspy-Ivan.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/05\/Airspy-Ivan.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/05\/Airspy-Ivan.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/05\/Airspy-Ivan.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":46253,"url":"https:\/\/swling.com\/blog\/2020\/10\/ivan-demonstrates-the-incredible-sdr-co-channel-canceller\/","url_meta":{"origin":39021,"position":2},"title":"Ivan demonstrates the incredible SDR# Co-Channel Canceller","author":"Thomas","date":"October 31, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan (NO2CW), who shares the following short demo of the new SDR# Co-Channel interference canceller tool: https:\/\/youtu.be\/4JSM4yfBzN8 That is simply amazing! Readers note: this powerful tool for DXing is a free upgrade for SDR# users! Click here to read more about the Co-Channel Canceller.\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\/2020\/06\/AirSpy-HF-PLus-Discovery-e1591531263729.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/06\/AirSpy-HF-PLus-Discovery-e1591531263729.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/06\/AirSpy-HF-PLus-Discovery-e1591531263729.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/06\/AirSpy-HF-PLus-Discovery-e1591531263729.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":30277,"url":"https:\/\/swling.com\/blog\/2018\/01\/ivan-compares-the-airspy-hf-to-the-kiwisdr\/","url_meta":{"origin":39021,"position":3},"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":[]},{"id":30735,"url":"https:\/\/swling.com\/blog\/2018\/02\/video-comparing-the-sdrplay-rsp1a-and-airspy-hf-on-hf-mw\/","url_meta":{"origin":39021,"position":4},"title":"Video: Comparing the SDRplay RSP1A and Airspy HF+ on HF &#038; MW","author":"Thomas","date":"February 5, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan Cholakov, who shares the following video where he compares the SDRplay RSP1A and the AirSpy HF+ software defined radios on shortwave and mediumwave: https:\/\/youtu.be\/Ff3SG_Mwt9Y Click here to watch on YouTube.","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\/2018\/02\/Ivan-RSP1a-screen-grab.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/Ivan-RSP1a-screen-grab.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/Ivan-RSP1a-screen-grab.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/Ivan-RSP1a-screen-grab.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":54246,"url":"https:\/\/swling.com\/blog\/2022\/10\/mario-shares-a-short-review-of-the-airspy-hf-discovery\/","url_meta":{"origin":39021,"position":5},"title":"Mario shares a short review of the Airspy HF+ Discovery SDR","author":"Thomas","date":"October 9, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mario Filippi (N2HUN), who shares the following guest post: A Short Review of the Airspy HF+ Discovery SDR by Mario Filippi (N2HUN) I recently purchased an AirSpy HF+ Discovery.\u00a0 As a SWL for over 60 years who\u2019s owned many shortwave radios by manufacturers such\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\/10\/20221005Airspy-HF_-Discovery-SDR-Mario.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/10\/20221005Airspy-HF_-Discovery-SDR-Mario.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/10\/20221005Airspy-HF_-Discovery-SDR-Mario.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/10\/20221005Airspy-HF_-Discovery-SDR-Mario.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/10\/20221005Airspy-HF_-Discovery-SDR-Mario.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/39021","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=39021"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/39021\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=39021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=39021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=39021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}