{"id":12023,"date":"2015-01-23T11:52:50","date_gmt":"2015-01-23T15:52:50","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=12023"},"modified":"2015-01-23T11:52:50","modified_gmt":"2015-01-23T15:52:50","slug":"23-january-2015-a-friday-morning-31-meter-band-scan","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2015\/01\/23-january-2015-a-friday-morning-31-meter-band-scan\/","title":{"rendered":"23 January 2015: A Friday morning 31 meter band scan"},"content":{"rendered":"<p><a href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-12026\" src=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum-1024x444.jpg\" alt=\"31-Meter-Waterfall-Spectrum\" width=\"640\" height=\"278\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum-1024x444.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum-300x130.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum.jpg 1057w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a>This morning, I tuned around the 31 meter band and was surprised with favorable\u00a0propagation out of Asia (see spectrum waterfall above&#8211;<a title=\"click to enlarge\" href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/31-Meter-Waterfall-Spectrum.jpg\" target=\"_blank\">click to enlarge<\/a>).<\/p>\n<p>I started logging\u00a0a few stations, but the effort\u00a0quickly turned into a full band scan\/survey. \u00a0I logged everything I could easily hear between the 9,390-10,000 kHz portion of the 31 meter band.<\/p>\n<p>I logged 52 stations and omitted eight that I considered too weak for good copy.<\/p>\n<p>I used my <a title=\"A review of the WiNRADiO WR-G31DDC \u201cExcalibur\u201d software defined radio (SDR)\" href=\"http:\/\/swling.com\/blog\/2012\/10\/a-review-of-the-winradio-wr-g31ddc-excalibur-software-defined-radio-sdr\/\">WinRadio Excalibur<\/a> SDR connected to a large horizontal delta loop wire antenna.<\/p>\n<p>The number of broadcasts originating in or targeting China is pretty phenomenal: the 31 band is your oyster, if you speak Chinese.<\/p>\n<h2>31 Meter Band 1200 &#8211; 1300 UTC, all frequencies in kHz<\/h2>\n<ul>\n<li>9390 Radio Thailand <em>Malaysian (1200Z)<\/em> then <em>English (1230Z)<\/em><\/li>\n<li>9410 China National Radio 5 <em>Chinese<\/em><\/li>\n<li>9430 FEBC Radio <em>Chinese<\/em><\/li>\n<li>9440 China Radio International <em>Cambodian<\/em><\/li>\n<li>9460 China Radio International <em>English<\/em><\/li>\n<li>9475 Radio Australia <em>English<\/em><\/li>\n<li>9490 Voice Of America <em>Korean<\/em><\/li>\n<li>9500 China National Radio 1 <em>Chinese<\/em><\/li>\n<li>9515 China National Radio 2 <em>Chinese<\/em><\/li>\n<li>9530 Voice Of America <em>Chinese<\/em><\/li>\n<li>9540 China Radio International <em>Chinese<\/em><\/li>\n<li>9550 China Radio International <em>Vietnamese<\/em> (covered by CRI Cantonese distortion)\n<p><div id=\"attachment_12025\" style=\"width: 277px\" class=\"wp-caption alignright\"><a href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/CRI-Cantonese-Transmitter-Noise.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-12025\" class=\"size-full wp-image-12025\" src=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/CRI-Cantonese-Transmitter-Noise.jpg\" alt=\"Note the CRI signal on 9,570 kHz which is blanketing the surrounding spectrum with noise.\" width=\"267\" height=\"304\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/CRI-Cantonese-Transmitter-Noise.jpg 267w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2015\/01\/CRI-Cantonese-Transmitter-Noise-263x300.jpg 263w\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" \/><\/a><p id=\"caption-attachment-12025\" class=\"wp-caption-text\">Note the blowtorch CRI signal on 9,570 kHz which was blanketing the surrounding spectrum with noise.<\/p><\/div><\/li>\n<li>9570 China Radio International <em>Cantonese<\/em> (<em>transmitter spewing\u00a0distortion 50\u00a0kHz\u00a0wide<\/em>)<\/li>\n<li>9580 Radio Australia <em>English<\/em> (covered by CRI Cantonese distortion)<\/li>\n<li>9590 China Radio International <em>Russian<\/em> (covered by CRI\u00a0Cantonese distortion)<\/li>\n<li>9600 China Radio International <em>English<\/em><\/li>\n<li>9620 China National Radio 6 <em>Chinese<\/em><\/li>\n<li>9635 Voice of Vietnam 1 <em>Vietnamese<\/em> (slightly below freq)<\/li>\n<li>9640 Radio Havana Cuba <em>Spanish<\/em><\/li>\n<li>9645 China Radio International <em>English<\/em><\/li>\n<li>9655 China Radio International <em>Chinese<\/em><\/li>\n<li>9660 Radio Taiwan International <em>Chinese<\/em><\/li>\n<li>9680 Radio Taiwan International <em>Chinese<\/em><\/li>\n<li>9700 Lower Sideband communication (UNID)<\/li>\n<li>9710 China National Radio 1 <em>Chinese<\/em><\/li>\n<li>9720 China Radio International<em> Filipino<\/em><\/li>\n<li>9730 China Radio International <em>English<\/em><\/li>\n<li>9735 Radio Taiwan International <em>Indonesian<\/em><\/li>\n<li>9740 BBC <em>English<\/em><\/li>\n<li>9745 Guanghua zhi Sheng <em>Chinese<\/em><\/li>\n<li>9750 Radio Kuwait <em>Arabic<\/em><\/li>\n<li>9730 China Radio International <em>English<\/em><\/li>\n<li>9770 KBS World Radio <em>Chinese<\/em><\/li>\n<li>9775 China National Radio 2 <em>Chinese<\/em> (vy weak)<\/li>\n<li>9785 China Radio International <em>Laotian<\/em><\/li>\n<li>9790 Voice Of Islamic Republic of Iran <em>Pashto<\/em><\/li>\n<li>9810 China National Radio 2 <em>Chinese<\/em> and All India Radio <em>Telugu<\/em><\/li>\n<li>9820 Radio Havana Cuba <em>Spanish<\/em><\/li>\n<li>9825 Voice Of America <em>Chinese<\/em><\/li>\n<li>9830 China National Radio 1 <em>Chinese<\/em><\/li>\n<li>9840 Voice of Vietnam <em>English<\/em><\/li>\n<li>9850 Radio Habana Cuba <em>Spanish<\/em><\/li>\n<li>9855 China Radio International <em>Chinese<\/em><\/li>\n<li>9860 China National Radio 1 <em>Chinese<\/em> (vy weak)<\/li>\n<li>9880 KSDA-AWR Guam <em>Korean<\/em> (vy weak)<\/li>\n<li>9900 Radio France International <em>Chinese<\/em><\/li>\n<li>9920 FEBC Radio <em>Bahnar<\/em> (w\/Jamming)<\/li>\n<li>9940 Reach Beyond Australia (HCJB) <em>Indonesian<\/em><\/li>\n<li>9955 Radio Slovakia International <em>English<\/em> (via WRMI\/WRN)<\/li>\n<li>9975 KTWR Guam <em>Chinese<\/em><\/li>\n<li>9990 Radio Farda <em>Persian<\/em><\/li>\n<li>10000 WWV Fort Collins <em>English<\/em><\/li>\n<\/ul>\n<p>I recorded two broadcasts during the scan&#8211;both at 12:30 UTC: <em>Radio Thailand<\/em> (9,390 kHz) and <em>Radio Slovakia<\/em> (9,955 kHz). I will post them soon.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This morning, I tuned around the 31 meter band and was surprised with favorable\u00a0propagation out of Asia (see spectrum waterfall above&#8211;click to enlarge). I started logging\u00a0a few stations, but the effort\u00a0quickly turned into a full band scan\/survey. \u00a0I logged everything I could easily hear between the 9,390-10,000 kHz portion of the 31 meter band. 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":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":[56,3,651,158,1167],"tags":[3537,1911,4082,4087,1395],"class_list":["post-12023","post","type-post","status-publish","format-standard","hentry","category-broadcasters","category-news","category-schedules-and-frequencies","category-software-defined-radio","category-whats-on-shortwave","tag-31-meter-band","tag-shortwave-logs","tag-shortwave-radio","tag-software-defined-radio","tag-winradio-excalibur"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-37V","jetpack-related-posts":[{"id":8755,"url":"https:\/\/swling.com\/blog\/2014\/02\/nothing-on-shortwave-i-still-disagree\/","url_meta":{"origin":12023,"position":0},"title":"Nothing on shortwave?  I still disagree.","author":"Thomas","date":"February 10, 2014","format":false,"excerpt":"One of the most popular posts on the SWLing Post is one published nearly two years ago: \"Is there anything to listen to on shortwave?\" In that article, I posted recordings made on the 31 meter band of eight different broadcasters, all of which I found within a 250 kHz\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"SpectrumDisplay-31Meters-WinRadioExcalibur","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/02\/SpectrumDisplay-31Meters-WinRadioExcalibur.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/02\/SpectrumDisplay-31Meters-WinRadioExcalibur.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/02\/SpectrumDisplay-31Meters-WinRadioExcalibur.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/02\/SpectrumDisplay-31Meters-WinRadioExcalibur.jpg?resize=700%2C400 2x"},"classes":[]},{"id":11183,"url":"https:\/\/swling.com\/blog\/2014\/10\/recording-and-logging-band-openings-last-night\/","url_meta":{"origin":12023,"position":1},"title":"Capturing spectrum and logging band openings last night","author":"Thomas","date":"October 25, 2014","format":false,"excerpt":"Last night, band conditions were superb above 7 MHz. Both the 31 and 25 meter bands\u00a0seemed crowded with stations; for a moment, it felt like a true solar peak. This morning, solar flares have dampened down the excitement but I imagine conditions could favorably change at times this weekend, so\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"My 31 meter band spectrum display last night. Strong signals across the board. ","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/31M-Band-Spectrum.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/31M-Band-Spectrum.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/31M-Band-Spectrum.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/31M-Band-Spectrum.jpg?resize=700%2C400 2x"},"classes":[]},{"id":15211,"url":"https:\/\/swling.com\/blog\/2015\/10\/excellent-current-conditions-evidenced-by-todays-31-meter-logs\/","url_meta":{"origin":12023,"position":2},"title":"Excellent current conditions, evidenced by today&#8217;s 31 meter logs","author":"Thomas","date":"October 20, 2015","format":false,"excerpt":"This morning, before heading out the door, I tuned around the\u00a031 meter broadcast band. I've actually been recording 640 kHz of the 31 meter band for almost 24 hours, trying to capitalize on the fact that propagation conditions have been the best I've seen in several months. At some point\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"31meterband-waterfall","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/31meterband-waterfall.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/31meterband-waterfall.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/31meterband-waterfall.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/31meterband-waterfall.jpg?resize=700%2C400 2x"},"classes":[]},{"id":10968,"url":"https:\/\/swling.com\/blog\/2014\/10\/shortwave-listening-in-a-hospital-lobby\/","url_meta":{"origin":12023,"position":3},"title":"Shortwave listening in a hospital lobby","author":"Thomas","date":"October 2, 2014","format":false,"excerpt":"This morning,\u00a0at 6:00\u00a0am,\u00a0I had to take a friend to the hospital for a scheduled (minor) operation. The hospital waiting room is spartan for a projected three hour wait, but the complimentary wi-fi Internet is quite speedy.\u00a0I had planned to catch up on a movie or two via Netflix, but the\u2026","rel":"","context":"In &quot;How To&quot;","block_context":{"text":"How To","link":"https:\/\/swling.com\/blog\/category\/how-to\/"},"img":{"alt_text":"ExcaliburviaTeamviewer","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/ExcaliburviaTeamviewer.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":17408,"url":"https:\/\/swling.com\/blog\/2016\/02\/guest-post-listening-to-10-meter-radio-beacons\/","url_meta":{"origin":12023,"position":4},"title":"Guest Post: Listening to 10 Meter Radio Beacons","author":"Thomas","date":"February 19, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mario\u00a0Filippi (N2HUN) for the following guest post: Listening in to 10 Meter Radio Beacons Mario Filippi, N2HUN (All photos courtesy of author--click to enlarge.) Radio beacons can be found across the RF spectrum from the LF (low frequency) band all the way up to\u2026","rel":"","context":"In &quot;Articles&quot;","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"SX-99-Dial-Nar","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=700%2C400 2x"},"classes":[]},{"id":18198,"url":"https:\/\/swling.com\/blog\/2016\/04\/one-year-with-the-titansdr\/","url_meta":{"origin":12023,"position":5},"title":"One year with the TitanSDR","author":"Thomas","date":"April 11, 2016","format":false,"excerpt":"Last year, I reviewed the TitanSDR Pro by the Italian manufacturer, Enablia,. I\u00a0was very impressed with not only this receiver's performance, but also its accompanying\u00a0application's user interface. I also noted in the review that the TitanSDR is pricier than many other benchmark SDRs on the market ($1380-1970 EUR) but it\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"TitanSDR-VOG","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/TitanSDR-VOG.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/TitanSDR-VOG.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/TitanSDR-VOG.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/12023","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=12023"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/12023\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=12023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=12023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=12023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}