{"id":27683,"date":"2017-08-23T06:45:42","date_gmt":"2017-08-23T10:45:42","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=27683"},"modified":"2017-08-23T06:45:42","modified_gmt":"2017-08-23T10:45:42","slug":"wnahs-solar-eclipse-propagation-test","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2017\/08\/wnahs-solar-eclipse-propagation-test\/","title":{"rendered":"WNAH&#8217;s solar eclipse propagation test"},"content":{"rendered":"<p>Many thanks to <em>SWLing Post<\/em> contributor,\u00a0Ivan Cholakov (NO2CW), who writes:<\/p>\n<blockquote><p>If you ever loved AM radio you will love this.<\/p>\n<p>Thank you WNAH for recognizing there&#8217;s more to radio than plugging into a programming network and walking away!<\/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\/ApOqz7RDZnY?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=\"http:\/\/youtu.be\/ApOqz7RDZnY\" target=\"_blank\" rel=\"noopener\">Click here to view on YouTube.<\/a><\/p>\n<p>Very cool! Many thanks, Ivan!<\/p>\n<p>As I mentioned <a href=\"https:\/\/swling.com\/blog\/2017\/08\/solar-eclipse-2017-in-the-path-of-totality\/\">in a previous post<\/a>, I recorded the entire mediumwave (AM broadcast) band from my North Carolina home with a WinRadio Excalibur on August 21 (day of the eclipse). After receiving Ivan&#8217;s message last night, I played back my recording and moved the time forward to around the moment of totality.<\/p>\n<p>The mediumwave band was hopping! Several stations were competing for 1360 kHz with eclipse-enhanced propagation. There were two large signals flanking 1360 as well.<\/p>\n<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Fullscreen-capture-8232017-14637-AM-e1503483667186.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27686\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Fullscreen-capture-8232017-14637-AM-e1503483667186.jpg\" alt=\"\" width=\"800\" height=\"536\" \/><\/a><\/p>\n<p>I thought I would never hear WNAH, but as I listened, their ID in CW (Morse Code) popped out of the signal mix. Here&#8217;s a short recording of the first station ID I received around\u00a02:26 PM EDT (1826 UTC):<\/p>\n<audio class=\"wp-audio-shortcode\" id=\"audio-27683-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/WNAH-CWID-1.36MHz-21AUG2017-TotalSol.mp3?_=1\" \/><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/WNAH-CWID-1.36MHz-21AUG2017-TotalSol.mp3\">https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/WNAH-CWID-1.36MHz-21AUG2017-TotalSol.mp3<\/a><\/audio>\n<p style=\"text-align: center;\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/WNAH-CWID-1.36MHz-21AUG2017-TotalSol.mp3\" target=\"_blank\" rel=\"noopener\">Click here to download the audio.<\/a><\/p>\n<p>True: this is rough audio, but it always amazes me how CW can so effectively punch through noise. Nice touch, WNAH!<\/p>\n<p>WNAH&#8217;s signal strength increased with time, but so did the competing signals on 1360 kHz. Within 10 minutes, about the time of totality in western North Carolina, WNAH was 40% stronger.<\/p>\n<p>I did submit my recording and notes to WNAH last night.<\/p>\n<p>Due to my schedule, I haven&#8217;t had any meaningful time to go over my eclipse spectrum recordings. Indeed, I think I&#8217;ll need several dedicated days to review them. While searching for WNAH&#8217;s signal, I could see a significant difference in propagation on the waterfall display within a 26 minute span of time:<\/p>\n<h3>\u00a014:15 EDT<\/h3>\n<h3><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-27687\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21-1024x639.jpg\" alt=\"\" width=\"625\" height=\"390\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21-1024x639.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21-300x187.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21-768x479.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21-624x389.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1415-Local-Aug-21.jpg 1093w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a>14:41 EDT<a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-27688\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21-1024x641.jpg\" alt=\"\" width=\"625\" height=\"391\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21-1024x641.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21-300x188.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21-768x481.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21-624x391.jpg 624w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/MW-at-1441-Local-Aug-21.jpg 1091w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><\/h3>\n<p>Note that local time of totality was 14:36 EDT.<\/p>\n<p>I made spectrum recordings spanning 0-2 MHz, 6-8 MHz and 13.5-15 MHz.<\/p>\n<p><strong><em>Post<\/em> readers<\/strong>: Did anyone else log WNAH? Log any other shortwave or mediumwave DX? Please comment!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor,\u00a0Ivan Cholakov (NO2CW), who writes: If you ever loved AM radio you will love this. Thank you WNAH for recognizing there&#8217;s more to radio than plugging into a programming network and walking away! Click here to view on YouTube. Very cool! Many thanks, Ivan! As I mentioned in a previous [&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":[373,433,3,43],"tags":[6343,6282,5391,4099,6449],"class_list":["post-27683","post","type-post","status-publish","format-standard","hentry","category-am","category-mediumwave","category-news","category-shortwave-radio","tag-2017-solar-eclipse","tag-eclipse","tag-ivan-cholakov-no2cw","tag-mediumwave","tag-wnah"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-7cv","jetpack-related-posts":[{"id":28094,"url":"https:\/\/swling.com\/blog\/2017\/09\/video-ivan-shares-a-bandscan-from-the-2017-eclipse-qso-party\/","url_meta":{"origin":27683,"position":0},"title":"Video: Ivan shares a bandscan from the 2017 Eclipse QSO Party","author":"Thomas","date":"September 5, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Ivan Cholakov (NO2CW) who shares the following: I finally got around to listening through some of the amateur radio band spectrum captures from the 2017 Solar Eclipse QSO party. I used an SDRPlay receiver with an end fed LNR antenna in portable field setting in\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\/2017\/09\/SDRuno-Eclipse-QSO-Party-Ivan.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/SDRuno-Eclipse-QSO-Party-Ivan.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/SDRuno-Eclipse-QSO-Party-Ivan.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/SDRuno-Eclipse-QSO-Party-Ivan.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":29831,"url":"https:\/\/swling.com\/blog\/2017\/12\/am-radio-ivan-compiles-2017-solar-eclipse-logs\/","url_meta":{"origin":27683,"position":1},"title":"AM Radio: Ivan compiles 2017 solar eclipse logs","author":"Thomas","date":"December 27, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Ivan Cholakov (NO2CW), who writes: I never got a chance to summarize my results of the AM scans I did during the 2017 total eclipse. I used an SDR and a 40 foot end-fed antenna located in a park near the Nashville, TN airport. On\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\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Waterfall-SDR.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":29398,"url":"https:\/\/swling.com\/blog\/2017\/12\/video-ivan-compares-the-sdrplay-rsp1-and-rsp1a\/","url_meta":{"origin":27683,"position":2},"title":"Video: Ivan compares the SDRplay RSP1 and RSP1A","author":"Thomas","date":"December 1, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan Cholakov (NO2CW), who shares the following video and notes: Comparing side to side reception performance on RSP1A vs. RSP1 on medium wave and shortwave using SDR Console 3. Audio level is uneven because two laptops were used. Antenna is the same, 80m OCF\u2026","rel":"","context":"In &quot;Mediumwave&quot;","block_context":{"text":"Mediumwave","link":"https:\/\/swling.com\/blog\/category\/mediumwave\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/RSP1a-comparison-video-Ivan-C.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/RSP1a-comparison-video-Ivan-C.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/RSP1a-comparison-video-Ivan-C.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/12\/RSP1a-comparison-video-Ivan-C.jpeg?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":27683,"position":3},"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":20767,"url":"https:\/\/swling.com\/blog\/2016\/08\/ivans-preliminary-review-of-the-new-rtl-sdr-dongle-on-shortwavemediumwave\/","url_meta":{"origin":27683,"position":4},"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":36394,"url":"https:\/\/swling.com\/blog\/2019\/03\/ivan-checks-out-the-kenwood-th-d74s-mediumwave-performance\/","url_meta":{"origin":27683,"position":5},"title":"Ivan checks out the Kenwood TH-D74&#8217;s mediumwave performance","author":"Thomas","date":"March 8, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ivan (NO2CW), who writes: One category of receivers not much talked about are the wideband handhelds. I first owned one of those in 1992 when I paid a ton of money for an AOR-1000. Not only did it cost me a lot but I\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\/2019\/03\/Kenwood-HT-AM-Dial.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/03\/Kenwood-HT-AM-Dial.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/03\/Kenwood-HT-AM-Dial.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/03\/Kenwood-HT-AM-Dial.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/27683","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=27683"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/27683\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=27683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=27683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=27683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}