{"id":6363,"date":"2013-04-26T10:51:57","date_gmt":"2013-04-26T14:51:57","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=6363"},"modified":"2013-04-26T10:51:57","modified_gmt":"2013-04-26T14:51:57","slug":"voa-radiogram-for-april-2728-includes-thor50x2-psk63f-and-flamp","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2013\/04\/voa-radiogram-for-april-2728-includes-thor50x2-psk63f-and-flamp\/","title":{"rendered":"VOA Radiogram for April 27\/28 includes Thor50x2, PSK63F, and Flamp"},"content":{"rendered":"

\"VOARadiogram\"<\/a>(Source: VOA Radiogram<\/a>)<\/p>\n

Apologies for not updating this website since the April 20\/21 VOA Radiogram. I have been diverted by deadlines connected to my other full-time job, audience research analyst for the International Broadcasting Bureau.<\/p>\n

Thanks to all who sent reception reports, screenshots, audio samples, and other materials from the past weekend\u2019s program. MFSK held off a challenge from the Thor modes and remains the most successful of the modes we have tested.<\/p>\n

However, because your producer omitted the Thor 50×2 mode \u2014 a mode that might prove to be robust \u2014 from that program, VOA Radiogram on April 27\/28 will include a \u201cmake good\u201d transmission of Thor 50×2. And a transmission of Thor 50×1 for comparison.<\/p>\n

There will also be a transmission of the PSK63F mode. This rather slow mode performed well during VOA Radiogram 1, but we only gave it a minute. There will be a longer transmission of PSK63F this weekend to allow a better evaluation.<\/p>\n

The last text transmission this weekend will be in the Flamp format. If you don\u2019t already have it, please download Flamp from\u00a0www.w1hkj.com<\/a>. Flamp divides a text file into several blocks, each with a specific number of characters. If any block is received without the correct number of characters, that block is rejected. The missing block can be picked up during the repeat transmission. Flamp might be useful for those text transmissions that are received at about 90% copy, when occasional deep fades prevent 100% copy. In Flamp, under Configure, check both of the Auto sync boxes.<\/p>\n

Here is the lineup for the April 27\/28 VOA Radiogram:<\/p>\n

MFSK16 (58 wpm) program preview
\nPSK63F (55 wpm), 2:50
\nMFSK32 text (120 wpm) and image, 4:28
\nThor50x1 (180wpm), 1:48
\nThor50x2 (180wpm), 1:46
\nMFSK64 (240 wpm), 2:16
\nMFSK128* in Flamp X2 format, 3:46
\nMFSK32 image<\/p>\n

*Probably a good idea to set the MFSK128 mode manually rather than depend on the RSID<\/p>\n

All modes will be centered on 1500\u00a0Hz.<\/p>\n

Each mode will be introduced by a brief MFSK16 transmission, same as last weekend.<\/p>\n

Please send reception reports to\u00a0radiogram@voanews.com<\/a><\/p>\n

Twitter: @VOARadiogram<\/p>\n

VOA Radiogram transmission schedule<\/strong>
\n(all days and times UTC)
\nSat 1600-1630\u00a017860\u00a0kHz
\nSun 0230-0300\u00a05745\u00a0kHz
\nSun 1300-1330\u00a06095\u00a0kHz
\nSun 1930-2000\u00a015670\u00a0kHz
\nAll via the Edward R. Murrow transmitting station in North Carolina.<\/p>\n

Kim<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

(Source: VOA Radiogram) Apologies for not updating this website since the April 20\/21 VOA Radiogram. I have been diverted by deadlines connected to my other full-time job, audience research analyst for the International Broadcasting Bureau. Thanks to all who sent reception reports, screenshots, audio samples, and other materials from the past weekend\u2019s program. MFSK held […]<\/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":[56,1114,1167],"tags":[1664,1856,10,1718],"class_list":["post-6363","post","type-post","status-publish","format-standard","hentry","category-broadcasters","category-digital-modes","category-whats-on-shortwave","tag-kim-elliott","tag-radiogram","tag-voa","tag-voa-radiogram"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-1ED","jetpack-related-posts":[{"id":9121,"url":"https:\/\/swling.com\/blog\/2014\/03\/voa-radiogram-battle-of-the-100-wpm-modes-this-weekend\/","url_meta":{"origin":6363,"position":0},"title":"VOA Radiogram: Battle of the 100 wpm modes, this weekend!","author":"Thomas","date":"March 28, 2014","format":false,"excerpt":"If you like the\u00a0VOA Radiogram, don't miss this weekend (March 29-30)--a one year mile marker for the VOA Radiogram service on shortwave radio. I've copied details of the broadcast below, but please bookmark or subscribe to the\u00a0VOA Radiogram\u00a0website to see the results of the 100 wpm battle and details of\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5991,"url":"https:\/\/swling.com\/blog\/2013\/03\/voa-radiogram-march-2324-broadcast\/","url_meta":{"origin":6363,"position":1},"title":"VOA Radiogram: March 23\/24 broadcast","author":"Thomas","date":"March 21, 2013","format":false,"excerpt":"(Source: VOA Radiogram) VOA Radiogram for March 23\/24 will be similar to the past weekend\u2019s program in that it features the PSK modes. Much of Kim\u2019s script will be the same. In this weekend\u2019s broadcast, however, only one mode at a time will be transmitted. This should improve the signal-to-noise\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6477,"url":"https:\/\/swling.com\/blog\/2013\/05\/capture-images-on-the-voa-radiogram-this-weekend\/","url_meta":{"origin":6363,"position":2},"title":"Capture images on the VOA Radiogram this weekend","author":"Thomas","date":"May 11, 2013","format":false,"excerpt":"(Source: VOA Radiogram) VOA Radiogram for the weekend of May 11 and 12 will feature long stretches of VOA News in plain text, using the MFSK 32 and 64 modes. No Flmsg or Flamp this time. This weekend\u2019s program will also include our first test of slow scan television (SSTV).\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6894,"url":"https:\/\/swling.com\/blog\/2013\/07\/voa-radiogram-this-weekend-2\/","url_meta":{"origin":6363,"position":3},"title":"VOA Radiogram this weekend","author":"Thomas","date":"July 20, 2013","format":false,"excerpt":"(Source: VOA Radiogram) Some listeners were impressed with the performance of last weekend\u2019s surprise mode: MT63-1000 long interleave, especially as it was mixed with music. For that reason, VOA Radiogram for the weekend of 20-21 July will include a VOA News story in the MT63-2000L mode (200 wpm), followed by\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7017,"url":"https:\/\/swling.com\/blog\/2013\/08\/voa-radiogram-10-11-august-2013-includes-mfsk-16-22-32\/","url_meta":{"origin":6363,"position":4},"title":"VOA Radiogram, 10-11 August 2013, includes MFSK 16, 22, 32","author":"Thomas","date":"August 10, 2013","format":false,"excerpt":"(Source: VOA Radiogram) In this weekend\u2019s VOA Radiogram, one VOA News item will be in the MFSK22 mode (80 words per minute), a mode we have generally not used for complete VOA News stories. Another \u201cfeature\u201d in this weekend\u2019s program will be five seconds of silence whenever modes are changed.\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6691,"url":"https:\/\/swling.com\/blog\/2013\/06\/voa-radiogram-this-weekend-mixed-bad-noise-with-good-noise\/","url_meta":{"origin":6363,"position":5},"title":"VOA Radiogram this weekend mixes bad noise with good noise","author":"Thomas","date":"June 15, 2013","format":false,"excerpt":"(Source: VOA Radiogram) During the past weekend, we experimented with mixing music with MFSK text modes. Reducing the MFSK modes by 9 dB was not a problem if the signal level was good, but the MFSK text did break up for some listeners if reception conditions were marginal. This weekend,\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/6363","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=6363"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/6363\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=6363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=6363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=6363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}