{"id":6089,"date":"2014-08-19T00:41:00","date_gmt":"2014-08-18T14:41:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2014\/08\/19\/alan-wolke-looks-at-diode-ring-mixers\/"},"modified":"2014-08-19T00:41:00","modified_gmt":"2014-08-18T14:41:00","slug":"alan-wolke-looks-at-diode-ring-mixers","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2014\/08\/19\/alan-wolke-looks-at-diode-ring-mixers\/","title":{"rendered":"Alan Wolke Looks at Diode Ring Mixers"},"content":{"rendered":"<p><iframe loading=\"lazy\" allowfullscreen=\"\" frameborder=\"0\" height=\"248\" src=\"\/\/www.youtube.com\/embed\/junuEwmQVQ8\" width=\"440\"><\/iframe><\/p>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: tahoma, sans-serif; font-size: 13px;\"> <b><i>Bill, I remember in your Soldersmoke book that you had difficulty for a long time trying to understand how a mixer created the sum and difference frequencies, and how this was accomplished in a diode ring mixer. I know that you&#8217;ve got it all sorted out now, but I thought this was a good topic for a video anyway. <\/i><\/b><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: tahoma, sans-serif; font-size: 13px;\"> <b><i><br \/><\/i><\/b><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: tahoma, sans-serif; font-size: 13px;\"> <b><i>Here&#8217;s my video on the subject:<\/i><\/b><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <b><i><span style=\"font-family: tahoma, sans-serif;\"><a href=\"https:\/\/www.youtube.com\/watch?v=junuEwmQVQ8\" style=\"color: #1155cc;\" target=\"_blank\">https:\/\/www.youtube.com\/watch?<wbr><\/wbr>v=junuEwmQVQ8<\/a><\/span><\/i><\/b><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <span style=\"font-family: tahoma, sans-serif;\"><b><i><br \/><\/i><\/b><\/span><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <span style=\"font-family: tahoma, sans-serif;\"><b><i>73,<\/i><\/b><\/span><\/div>\n<div class=\"gmail_default\" style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <span style=\"font-family: tahoma, sans-serif;\"><b><i>Alan<\/i><\/b><\/span><\/div>\n<p> <span style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"><br \/><\/span> <span style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"><br \/><\/span> <span style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\">A<i><b>lan: Thanks. Great stuff. Yea, I&#8217;ve been looking at the innards of mixers for a long time. In my book, I try to explain how I have come to understand the physics of the mixing action &#8212; how the use of a non-linear element causes two signals to &#8220;multiply&#8221; and how this &#8220;multiplication&#8221; results in sum and difference frequencies. I tried to go beyond the trig functions because for me the trig didn&#8217;t really explain anything. <\/b><\/i><\/span> <\/p>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><br \/><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b>In the book I was looking at the classic two diode mixer (beloved of Doug DeMaw!). A few years later, on the blog, I was looking at the action of the diode ring. I concluded that there is a big difference between how the diode ring works and how the two diode mixer works. RSGB provided a great diagram: <\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><br \/><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><a href=\"http:\/\/soldersmoke.blogspot.com\/2009\/04\/are-diode-ring-mixers-fundamentally.html\" style=\"color: #1155cc;\" target=\"_blank\">http:\/\/soldersmoke.blogspot.<wbr><\/wbr>com\/2009\/04\/are-diode-ring-<wbr><\/wbr>mixers-fundamentally.html<\/a><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><br \/><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><br \/><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b>73 Bill <\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b><br \/><\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <i><b>&#8212;&#8211;<\/b><\/i><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"><\/div>\n<div style=\"background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 13px;\"> <b>I guess one way of describing the difference between a two diode mixer and a diode ring would be to say that the more simple mixer multiplies the signal by 0 and 1 (if it is operating in &#8220;switching mode), while the diode ring multiplies by 1 and -1. <\/b><\/div>\n<p> Our book: &#8220;SolderSmoke &#8212; Global Adventures in Wireless Electronics&#8221; <a href=\"http:\/\/soldersmoke.com\/book.htm\">http:\/\/soldersmoke.com\/book.htm<\/a> Our coffee mugs, T-Shirts, bumper stickers: <a href=\"http:\/\/www.cafepress.com\/SolderSmoke\">http:\/\/www.cafepress.com\/SolderSmoke<\/a> Our Book Store: <a href=\"http:\/\/astore.amazon.com\/contracross-20\">http:\/\/astore.amazon.com\/contracross-20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bill, I remember in your Soldersmoke book that you had difficulty for a long time trying to understand how a mixer created the sum and difference frequencies, and how this was accomplished in a diode ring mixer. I know that you&#8217;ve got it all sorted out now, but I thought this was a good topic &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2014\/08\/19\/alan-wolke-looks-at-diode-ring-mixers\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Alan Wolke Looks at Diode Ring Mixers&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,14,161],"tags":[],"class_list":["post-6089","post","type-post","status-publish","format-standard","hentry","category-mixer-theory","category-video","category-wolke-alan"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6089","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=6089"}],"version-history":[{"count":0,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6089\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=6089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=6089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=6089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}