{"id":57725,"date":"2023-09-07T06:30:27","date_gmt":"2023-09-07T10:30:27","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=57725"},"modified":"2023-09-07T06:30:27","modified_gmt":"2023-09-07T10:30:27","slug":"ivan-compares-the-new-rtl-sdr-v4-and-the-airspy-discovery-hf","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2023\/09\/ivan-compares-the-new-rtl-sdr-v4-and-the-airspy-discovery-hf\/","title":{"rendered":"Ivan compares the new RTL-SDR V4 and the Airspy Discovery HF+"},"content":{"rendered":"<p><strong><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-57581\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg\" alt=\"\" width=\"1500\" height=\"1182\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4.jpeg 1500w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4-300x236.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4-1024x807.jpeg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4-768x605.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2023\/08\/RTL-SDR-V4-624x492.jpeg 624w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><\/a>Many thanks to <em>SWLing Post<\/em> contributor, Ivan (NO2CW), who writes:<\/strong><\/p>\n<p style=\"padding-left: 40px;\">I ran a test of weak signals <a href=\"https:\/\/amzn.to\/44haXl2\" target=\"_blank\" rel=\"noopener\">RTL-SDR v4<\/a> against <a href=\"https:\/\/airspy.com\/airspy-hf-discovery\/\" target=\"_blank\" rel=\"noopener\">Airspy HF+ Discovery<\/a>. 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 W6LVP loop antenna from my location near Miami Florida and I was intentionally looking for barely readable weak signals. The <a href=\"https:\/\/amzn.to\/44haXl2\" target=\"_blank\" rel=\"noopener\">RTL-SDR v4<\/a> is a great budget SDR receiver!<\/p>\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\/yWjhMRkmb0U?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","protected":false},"excerpt":{"rendered":"<p>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 W6LVP loop antenna from my [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","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":[836,3,129,43,158],"tags":[7791,5391,2858],"class_list":["post-57725","post","type-post","status-publish","format-standard","hentry","category-new-products","category-news","category-reviews","category-shortwave-radio","category-software-defined-radio","tag-airspy-hf-discovery","tag-ivan-cholakov-no2cw","tag-rtl-sdr"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-f13","jetpack-related-posts":[{"id":39021,"url":"https:\/\/swling.com\/blog\/2019\/08\/airspy-hf-vs-hf-discovery-ivans-blind-daytime-propagation-comparison\/","url_meta":{"origin":57725,"position":0},"title":"AirSpy HF+ vs. HF+ Discovery: Ivan&#8217;s blind daytime propagation comparison","author":"Thomas","date":"August 15, 2019","format":false,"excerpt":"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: https:\/\/youtu.be\/VV4nOWkxACU Click here to view on YouTube. Using the same W6LVP loop. 3\u2026","rel":"","context":"In &quot;Ham Radio&quot;","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/08\/SDRs.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":46253,"url":"https:\/\/swling.com\/blog\/2020\/10\/ivan-demonstrates-the-incredible-sdr-co-channel-canceller\/","url_meta":{"origin":57725,"position":1},"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":20767,"url":"https:\/\/swling.com\/blog\/2016\/08\/ivans-preliminary-review-of-the-new-rtl-sdr-dongle-on-shortwavemediumwave\/","url_meta":{"origin":57725,"position":2},"title":"Ivan&#8217;s preliminary review of the new RTL-SDR dongle on shortwave\/mediumwave","author":"Thomas","date":"August 22, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan Cholakov (NO2CW), who shares the following video review of the\u00a0new\u00a0RTL-SDR dongle on the\u00a0shortwave\u00a0and mediumwave bands. Ivan notes: This is daytime reception comparison. Nighttime could be a different picture. [The RTL-SDR dongle] tunes and frequency is 100% on spot. Using SDR Sharp you have\u2026","rel":"","context":"In &quot;New Products&quot;","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"RTL-SDR-RTL2832U-e1471375714199","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/08\/RTL-SDR-RTL2832U-e1471375714199-1-300x243.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":30277,"url":"https:\/\/swling.com\/blog\/2018\/01\/ivan-compares-the-airspy-hf-to-the-kiwisdr\/","url_meta":{"origin":57725,"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":37967,"url":"https:\/\/swling.com\/blog\/2019\/05\/the-airspy-hf-discovery-a-new-high-performance-sdr\/","url_meta":{"origin":57725,"position":4},"title":"The Airspy HF+ Discovery: A new high-performance SDR","author":"Thomas","date":"May 27, 2019","format":false,"excerpt":"At the 2019 Hamvention, I stopped by the Airspy.US booth and checked out the specifications of Airspy's latest SDR: the Airspy HF+ Discovery. At first glance, the Discovery looks a lot like the Airspy HF+ but even smaller and sporting performance upgrades. Keep in mind, I consider the Airspy HF+\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\/2019\/05\/Airspy-HF-Plus-Discovery-PCB.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/Airspy-HF-Plus-Discovery-PCB.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/Airspy-HF-Plus-Discovery-PCB.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/Airspy-HF-Plus-Discovery-PCB.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":31994,"url":"https:\/\/swling.com\/blog\/2018\/05\/ivan-performs-two-tests-with-the-airspy-hf\/","url_meta":{"origin":57725,"position":5},"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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/57725","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=57725"}],"version-history":[{"count":2,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/57725\/revisions"}],"predecessor-version":[{"id":57727,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/57725\/revisions\/57727"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=57725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=57725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=57725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}