{"id":3686,"date":"2011-07-20T10:49:00","date_gmt":"2011-07-20T00:49:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2011\/07\/20\/doug-demaw-and-vlad-polyakov\/"},"modified":"2025-07-21T15:54:07","modified_gmt":"2025-07-21T05:54:07","slug":"doug-demaw-and-vlad-polyakov","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2011\/07\/20\/doug-demaw-and-vlad-polyakov\/","title":{"rendered":"Doug Demaw and Vlad Polyakov"},"content":{"rendered":"<p><a onblur=\"try {parent.deselectBloggerImageGracefully();} catch(e) {}\" href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2011\/07\/DemawPolyakov.jpeg\"><img decoding=\"async\" style=\"display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 244px;\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2011\/07\/DemawPolyakov.jpeg\" alt=\"\" id=\"BLOGGER_PHOTO_ID_5631386675712330706\" border=\"0\" \/><\/a><span style=\"font-size:130%;\"><span style=\"font-weight: bold;\">I was looking through <span style=\"font-style: italic;\">W1FB&#8217;s Design Notebook<\/span> the other day and I came across the above schematic for a direct conversion receiver (page 111). Note the Polyakov detector. One strange thing though: Doug was running the oscillator at the operating frequency. I thought the big advantage of the Polyakov design was that you ran the oscillator at half the operating frequency (that&#8217;s why it is sometimes called a &#8220;subharmonic&#8221; detector). Any ideas on why Doug did it this way?<\/span><\/p>\n<p><span style=\"font-weight: bold;\">Check out &#8220;SolderSmoke &#8212; Global Adventures in Wireless Electronics&#8221;<br \/><a href=\"http:\/\/soldersmoke.com\/book.htm\">http:\/\/soldersmoke.com\/book.htm<\/a><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I was looking through W1FB&#8217;s Design Notebook the other day and I came across the above schematic for a direct conversion receiver (page 111). Note the Polyakov detector. One strange thing though: Doug was running the oscillator at the operating frequency. I thought the big advantage of the Polyakov design was that you ran the &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2011\/07\/20\/doug-demaw-and-vlad-polyakov\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Doug Demaw and Vlad Polyakov&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3687,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,55],"tags":[],"class_list":["post-3686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-demaw-doug","category-polyakov-vladimir"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3686","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=3686"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3686\/revisions"}],"predecessor-version":[{"id":3688,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3686\/revisions\/3688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/3687"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}