{"id":1420,"date":"2011-07-23T13:20:09","date_gmt":"2011-07-23T18:20:09","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=1420"},"modified":"2011-07-23T13:20:09","modified_gmt":"2011-07-23T18:20:09","slug":"silicon-labs-si4734-dsp-shortwave-radios","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2011\/07\/silicon-labs-si4734-dsp-shortwave-radios\/","title":{"rendered":"Silicon Labs Si4734 DSP-based shortwave radios"},"content":{"rendered":"<div id=\"attachment_1422\" style=\"width: 220px\" class=\"wp-caption alignright\"><a href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2011\/07\/SI4735-circuits.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1422\" class=\"size-medium wp-image-1422 \" title=\"SI4735-circuits\" src=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2011\/07\/SI4735-circuits-300x194.jpg\" alt=\"\" width=\"210\" height=\"136\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2011\/07\/SI4735-circuits-300x194.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2011\/07\/SI4735-circuits.jpg 630w\" sizes=\"auto, (max-width: 210px) 100vw, 210px\" \/><\/a><p id=\"caption-attachment-1422\" class=\"wp-caption-text\">The Silicon Labs Si4734\/35<\/p><\/div>\n<p>I have gone through our <a title=\"SWRI\" href=\"http:\/\/swling.com\/db\" target=\"_blank\">Shortwave Radio Index<\/a> (SWRI) and <a title=\"SWRI\" href=\"http:\/\/swling.com\/db\/tag\/si4734\/\" target=\"_blank\">tagged every portable radio<\/a> that is based on the Silicon Labs Si4734 DSP chipset.<\/p>\n<p>The <a title=\"The Silicon Labs Si4734\" href=\"http:\/\/www.silabs.com\/products\/audiovideo\/amfmreceivers\/Pages\/Si473435.aspx\" target=\"_blank\">Si4734<\/a> has been one of the biggest innovations to happen to portable receivers in recent years. When implemented well into a receiver design, the Si4734 can give a small portable exceptional selectivity and sensitivty through the power of <a title=\"What is DSP?\" href=\"http:\/\/en.wikipedia.org\/wiki\/Digital_signal_processing\" target=\"_blank\">DSP (Digital Signal Processing)<\/a>.<\/p>\n<p>Simply click on this link to see a list of portable shortwave radios that are designed around the Silicon Labs Si4734:<br \/>\n<a href=\"http:\/\/swling.com\/db\/tag\/si4734\/\">http:\/\/swling.com\/db\/tag\/si4734\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have gone through our Shortwave Radio Index (SWRI) and tagged every portable radio that is based on the Silicon Labs Si4734 DSP chipset. The Si4734 has been one of the biggest innovations to happen to portable receivers in recent years. When implemented well into a receiver design, the Si4734 can give a small portable [&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":[26,357],"tags":[4096,489,434,435,358],"class_list":["post-1420","post","type-post","status-publish","format-standard","hentry","category-radios","category-shortwave-radio-index","tag-shortwave-radio-index","tag-si4734","tag-silabs","tag-silicon-labs","tag-swri"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-mU","jetpack-related-posts":[{"id":14182,"url":"https:\/\/swling.com\/blog\/2015\/07\/silicon-labs-dsp-chip-homebrew-receiver\/","url_meta":{"origin":1420,"position":0},"title":"Silicon Labs DSP chip homebrew receiver","author":"Thomas","date":"July 27, 2015","format":false,"excerpt":"The Silicon Labs Si4730 series DSP receiver chip powers many of the portable shortwave radios currently on the market. Manufacturers are not the only ones implementing the chip in receiver design, however; radio enthusiasts are too. I recently discovered this short video by a Japanese hobbyist who implemented the Si4734\u2026","rel":"","context":"In &quot;How To&quot;","block_context":{"text":"How To","link":"https:\/\/swling.com\/blog\/category\/how-to\/"},"img":{"alt_text":"DSP-Homebrew","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/DSP-Homebrew.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/DSP-Homebrew.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/DSP-Homebrew.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/07\/DSP-Homebrew.jpg?resize=700%2C400 2x"},"classes":[]},{"id":1372,"url":"https:\/\/swling.com\/blog\/2011\/07\/the-elusive-kchibo-d96l-on-sale-for-47-us\/","url_meta":{"origin":1420,"position":1},"title":"The elusive Kchibo D96L on sale for $47 US","author":"Thomas","date":"July 22, 2011","format":false,"excerpt":"Actually, the price is showing as $46.78 from DinoDirect. The Kchibo D96L is considered a bargian small radio and always reviews well. \u00a0Based on the Silicon Labs Si4734 DSP chip, this receiver has excellent selectivity and sensitivity for a radio in its price range--especially on the AM broadcast or Mediumwave\u2026","rel":"","context":"In &quot;Radios&quot;","block_context":{"text":"Radios","link":"https:\/\/swling.com\/blog\/category\/radios\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/db\/wp-content\/uploads\/2011\/01\/D96L.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14801,"url":"https:\/\/swling.com\/blog\/2015\/09\/guest-post-joris-home-brew-si4835-based-receiver\/","url_meta":{"origin":1420,"position":2},"title":"Guest Post: Joris&#8217; home brew Si4835-based receiver","author":"Thomas","date":"September 21, 2015","format":false,"excerpt":"Many thanks to Joris van Scheindelen (PE1KTH)--an\u00a0SWLing Post contributor from the Netherlands--for the following guest post: High Tech AM-FM DSP Receiver From The old mode AM is still an interesting mode for amateur radio communication, also in amplitude CW. Building your receiver is not difficult and quite fun. The semiconductor\u2026","rel":"","context":"In &quot;AM&quot;","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"AM FM ontvanger P3060601","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/AM-FM-ontvanger-P3060601-e1442179065549.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/AM-FM-ontvanger-P3060601-e1442179065549.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/AM-FM-ontvanger-P3060601-e1442179065549.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":31454,"url":"https:\/\/swling.com\/blog\/2018\/04\/video-band-scanning-with-the-c-crane-ccradio-ep-pro\/","url_meta":{"origin":1420,"position":3},"title":"Video: Band scanning with the C. Crane CCRadio-EP Pro","author":"Thomas","date":"April 3, 2018","format":false,"excerpt":"I'm in the process of writing up a review of the C. Crane CCRadio-EP Pro, but a number of readers have been asking about how pronounced muting is between frequencies while band scanning. To be clear, the CCRadio-EP Pro is not a true analog set like the original CCRadio-EP (even\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\/03\/CCRadio-EP-Pro-Dial-e1521806501474.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/CCRadio-EP-Pro-Dial-e1521806501474.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/CCRadio-EP-Pro-Dial-e1521806501474.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/CCRadio-EP-Pro-Dial-e1521806501474.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":11523,"url":"https:\/\/swling.com\/blog\/2014\/11\/a-look-inside-the-radioshack-model-2000669-shortwave-radio\/","url_meta":{"origin":1420,"position":4},"title":"A look inside the RadioShack Model 2000669 shortwave radio","author":"Thomas","date":"November 25, 2014","format":false,"excerpt":"After submitting his mini review of the RS Model 2000669, SWLing Post reader, Mike, writes: Attached [above] is an annotated photo of the RS radio's PC board. As you'll see, there is a mystery \"blob\" chip, which probably handles the DSP functions. The TDA2922 is an audio amplifier, but I\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"RS SW Portable small (1)-001","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-SW-Portable-small-1-001-1016x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-SW-Portable-small-1-001-1016x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-SW-Portable-small-1-001-1016x1024.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":1227,"url":"https:\/\/swling.com\/blog\/2011\/07\/silicon-labs-ships-one-billionth-dsp-radio-chip\/","url_meta":{"origin":1420,"position":5},"title":"Silicon Labs ships one billionth DSP radio chip","author":"Thomas","date":"July 3, 2011","format":false,"excerpt":"Silicon Labs, the chip manufacturer behind some of the best portable shortwave radios in the market (including Tecsun and Grundig) has sold its one billionth DSP radio chip. Silicon Labs has been one of the best things to happen to the portable shortwave market this century. Their DSP chips lower\u2026","rel":"","context":"In &quot;Manufacturers&quot;","block_context":{"text":"Manufacturers","link":"https:\/\/swling.com\/blog\/category\/manufacturers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2011\/07\/silabslogo.gif?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/1420","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=1420"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/1420\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=1420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=1420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=1420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}