{"id":7470,"date":"2025-04-26T11:58:00","date_gmt":"2025-04-26T01:58:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/26\/rob-vk5rcs-fb-soldersmoke-direct-conversion-receiver-mds\/"},"modified":"2025-07-22T12:36:17","modified_gmt":"2025-07-22T02:36:17","slug":"rob-vk5rcs-fb-soldersmoke-direct-conversion-receiver-mds","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/26\/rob-vk5rcs-fb-soldersmoke-direct-conversion-receiver-mds\/","title":{"rendered":"Rob VK5RC&#8217;s FB SolderSmoke Direct Conversion Receiver.  MDS?"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/ZaUo6oLZ2cY?si=yOu_bId6_n1kyuqJ?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>Rob VK5RC has completed his SolderSmoke direct conversion receiver. Congratulations Rob. And it is good to know what we have a Medical Doctor among our builders &#8212; this adds prestige and expertise to the project. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Rob measures a Minimum Discernible Signal at -95 dbm. I think that is kind of weak performance. Much depends, of course, on how you define &#8220;descernible.&#8221; Some books say you need a 10 db increase in audio. Others say you just need to be able to tell there is a signal there. I have gone with the latter definition and have measured MDS of around -120 dbm. I wonder why there is such a difference in measured MDS. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>In any case, it is great to see Rob&#8217;s receiver inhaling all of that great Australian SSB (see video above). Thanks Rob, and congratulations. <\/b><\/div>\n<div><\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Rob VK5RC has completed his SolderSmoke direct conversion receiver. Congratulations Rob. And it is good to know what we have a Medical Doctor among our builders &#8212; this adds prestige and expertise to the project. Rob measures a Minimum Discernible Signal at -95 dbm. I think that is kind of weak performance. Much depends, of &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/26\/rob-vk5rcs-fb-soldersmoke-direct-conversion-receiver-mds\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Rob VK5RC&#8217;s FB SolderSmoke Direct Conversion Receiver.  MDS?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,9,11,71],"tags":[],"class_list":["post-7470","post","type-post","status-publish","format-standard","hentry","category-australia","category-dc-receiver-build","category-dc-rx-hall-of-fame","category-test-gear"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=7470"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7470\/revisions"}],"predecessor-version":[{"id":11094,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7470\/revisions\/11094"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=7470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=7470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=7470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}