{"id":4837,"date":"2012-11-06T18:26:57","date_gmt":"2012-11-06T22:26:57","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=4837"},"modified":"2012-11-06T18:26:57","modified_gmt":"2012-11-06T22:26:57","slug":"the-mighty-kbc-tests-9450-khz-and-will-send-a-digital-message-this-weekend","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2012\/11\/the-mighty-kbc-tests-9450-khz-and-will-send-a-digital-message-this-weekend\/","title":{"rendered":"The Mighty KBC tests 9,450 kHz and will send a digital message this weekend"},"content":{"rendered":"
\"\"<\/a>

KBC Propagation Map (Source: The Mighty KBC)<\/p><\/div>\n

This Sunday, from 00:00-02:00 UTC, The Mighty KBC will again broadcast 2 hours of music\u00a0on the 31 meter band. \u00a0This time, they will be testing on 9,450 kHz<\/em> to avoid adjacent signal interference heard on 9,500 kHz last week.<\/p>\n

They will also broadcast a special digital message at 01:30 and then again prior to the end of their broadcast. They have sent full details about the broadcast in a press release (below). Note that though the mode is different, the\u00a0procedure\u00a0of decoding the digital message is similar to the one WBCQ broadcast this year. We published a short primer on decoding the WBCQ message in May.<\/p>\n

Here are the details on Sunday’s broadcast and how to decode the QPSK125 message:<\/p>\n

(Source: The Might KBC<\/a>)<\/p>\n

The Mighty KBC will test to the USA on Sunday 11 November 2012 00.00 – 02.00 UTC on 9450 kHz!<\/p>\n

Please join the Mighty KBC for a test of a digital text sent via a shortwave broadcast transmitter. This will take place during the next transmission to North America, Sunday 0000-0200 UTC, at approximately\u00a00130 and just before the end of the broadcast at 0200.<\/p>\n

All you need is a basic shortwave receiver (no SSB mode is necessary), and a basic personal computer. Using a patch cord, you will feed the audio out of the earphone jack (or line out) of your radio into the\u00a0microphone jack of your PC. If you don’t have a patch cord, you can try placing the speaker of your radio close to the built-in microphone of a laptop PC.<\/p>\n

You will also need software. There are several freeware or shareware programs used by the amateur radio community that decode digital text modes. One is FLDIGI, available from\u00a0http:\/\/www.w1hkj.com<\/a>\u00a0.<\/p>\n

After installing FLDIGI, pull down the Configure menu, then click Sound Card, and select the soundcard your PC is using.<\/p>\n

You might also have to adjust your audio settings. In Windows 7, left click twice on the speaker icon in the lower right of PC display, then click Options, then click Properties, then click Recording, then click\u00a0the input that works. Other operating systems will have different procedures. A good way to test your audio settings is to try to decode the radio amateurs using the PSK31 mode on 14070 kHz.<\/p>\n

For the test digital text transmissions on Sunday, The Mighty KBC will be using the QPSK125 mode. On your software, your cursor should be centered on 1500 Hertz, where you will see the “waterfall” of the\u00a0QPSK125 signal. You can decode the transmission while you receive it, or record the transmission and decode from the recording. The latter will give you more opportunities to perfect the technique.<\/p>\n

The test to be transmitted will be a formatted html file. Copy it from <html> to (and including) <\/html>, and paste it to a text editor (such as Notepad in Windows). Save the file, using any file name, with the suffix .htm or .html. Then open the file in any web browser. If all goes well, this might be the first time you receive a shortwave radio broadcast in color!<\/p>\n

In the future, an app will be developed to make this process simpler!<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

This Sunday, from 00:00-02:00 UTC, The Mighty KBC will again broadcast 2 hours of music\u00a0on the 31 meter band. \u00a0This time, they will be testing on 9,450 kHz to avoid adjacent signal interference heard on 9,500 kHz last week. They will also broadcast a special digital message at 01:30 and then again prior to the […]<\/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":[56,1114,3],"tags":[4114,1111,1116,576,573,1383],"class_list":["post-4837","post","type-post","status-publish","format-standard","hentry","category-broadcasters","category-digital-modes","category-news","tag-digital-modes","tag-digital-shortwave","tag-fldigi","tag-kbc","tag-the-mighty-kbc","tag-the-mighty-kbc-test-transmission"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-1g1","jetpack-related-posts":[{"id":5395,"url":"https:\/\/swling.com\/blog\/2013\/01\/the-mighty-kbc-testing-fast-digital-modes-this-weekend\/","url_meta":{"origin":4837,"position":0},"title":"The Mighty KBC testing fast digital modes this weekend","author":"Thomas","date":"January 17, 2013","format":false,"excerpt":"The Mighty KBC will broadcast this Sunday (January 20) on 9,450 kHz between 00:00-02:00 UTC (that's Saturday night in North America from 19:00-21:00 EST). Details below: (Source: The Mighty KBC) We will try some fast text modes this weekend on The Mighty KBC, to see if they can survive the\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"KBC Propagation Map (Source: The Mighty KBC)","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/09\/PropagationMapKBC-300x228.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5073,"url":"https:\/\/swling.com\/blog\/2012\/12\/the-mighty-kbc-repeating-digital-tests-this-weekend\/","url_meta":{"origin":4837,"position":1},"title":"The Mighty KBC repeating digital tests this weekend","author":"Thomas","date":"December 15, 2012","format":false,"excerpt":"The Mighty KBC is repeating the digital test they broadcast last weekend. If you tune in (9,450 kHz, from 00:00-02:00 UTC) you should try decoding their digital message. If you configure FLDIGI according to their instructions, below, their broadcast should automatically launch your web browser with a message: Because shortwave\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/12\/MightyKBCTruck-300x170.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5666,"url":"https:\/\/swling.com\/blog\/2013\/02\/shortwave-radio-recordings-the-mighty-kbc\/","url_meta":{"origin":4837,"position":2},"title":"Shortwave Radio Recordings: The Mighty KBC","author":"Thomas","date":"February 17, 2013","format":false,"excerpt":"The Mighty KBC broadcast again early this morning (from 00:00-02:00 UTC) on 9,450 kHz. Their signal was quite strong into North America and there was very little interference of any sort. As we've come to expect, the KBC's Giant Jukebox of music has a lot of rock-n-roll variety, spanning the\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"tom-petty","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/02\/tom-petty-244x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4895,"url":"https:\/\/swling.com\/blog\/2012\/11\/saturday-from-bulgaria-dr-elliott-will-control-your-web-browser\/","url_meta":{"origin":4837,"position":3},"title":"Saturday, from Bulgaria, Dr. Elliott will control your web browser","author":"Thomas","date":"November 23, 2012","format":false,"excerpt":"As DRMNA.info says: \"Let Dr. Elliott take control of your PC!\" I agree. On several\u00a0occasions now, Dr. Kim Elliott has transmitted digital messages via shortwave radio in an assortment of digital modes. We've mentioned this in the past (and we even posted a tutorial on decoding his WBCQ message). Early\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/11\/1-ontheairmicrophone-002-300x233.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5547,"url":"https:\/\/swling.com\/blog\/2013\/02\/shortwave-radio-recordings-the-giant-jukebox-and-kim-elliotts-digital-text-on-the-mighty-kbc\/","url_meta":{"origin":4837,"position":4},"title":"Shortwave Radio Recordings: The Giant Jukebox and Kim Elliott’s digital text on The Mighty KBC","author":"Thomas","date":"February 3, 2013","format":false,"excerpt":"The Mighty KBC's broadcast from Bulgaria was mighty strong last night into North America. I recorded the full 2 hour show of The Giant Jukebox on 9,450 kHz beginning at 00:00 UTC. As I've come to expect from The Mighty KBC, this show has an marvelous mix of rock-n-roll through\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"wurlitzerJukebox","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/01\/wurlitzerJukebox-181x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4967,"url":"https:\/\/swling.com\/blog\/2012\/12\/the-mighty-kbc-to-broadcast-in-drm-digital-radio-mondiale\/","url_meta":{"origin":4837,"position":5},"title":"The Mighty KBC to broadcast in DRM (Digital Radio Mondiale)","author":"Thomas","date":"December 2, 2012","format":false,"excerpt":"The Mighty KBC has announced that they're going to broadcast in DRM again on the 22, 23, 25 & 26 of December from 16:00 - 18:00 UTC. This is in addition to their previous announced December specials. The DRM broadcasts will come from a 100 kW transmitter and curtain antenna\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/12\/KBCpropMapDRM-300x294.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/4837","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=4837"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/4837\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=4837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=4837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=4837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}