{"id":7454,"date":"2014-05-01T09:50:00","date_gmt":"2014-04-30T23:50:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2014\/05\/01\/vfo-for-bitx-20-40\/"},"modified":"2025-07-21T22:57:03","modified_gmt":"2025-07-21T12:57:03","slug":"vfo-for-bitx-20-40","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2014\/05\/01\/vfo-for-bitx-20-40\/","title":{"rendered":"VFO for BITX 20\/40"},"content":{"rendered":"<div class=\"separator\" style=\"clear: both; text-align: center;\"> <a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2014\/05\/BITX2040VFO2.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2014\/05\/BITX2040VFO2.jpg\" height=\"257\" width=\"400\" \/><\/a><\/div>\n<p> <strong>Here&#8217;s the VFO I use in my BITX 20\/40. IF is obviously 11 MHz. VFO normally tunes 3697-3859 kHz for 40 meters. Switching in that 220 pf cap lowers the range to 3292-3189 kHz for 20 meters. It workd very well. The coil is wound on a cardboard tube from a coat hanger. I will put this in the appropriate file on the BITX group site. I like the 20\/40 band combination: Good DX possibilities on 20, with provisions (40!) for the low sunspot counts to come.<\/strong> <\/p>\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>Here&#8217;s the VFO I use in my BITX 20\/40. IF is obviously 11 MHz. VFO normally tunes 3697-3859 kHz for 40 meters. Switching in that 220 pf cap lowers the range to 3292-3189 kHz for 20 meters. It workd very well. The coil is wound on a cardboard tube from a coat hanger. I will &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2014\/05\/01\/vfo-for-bitx-20-40\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;VFO for BITX 20\/40&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":7455,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-7454","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitx20"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7454","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=7454"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7454\/revisions"}],"predecessor-version":[{"id":7456,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7454\/revisions\/7456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/7455"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=7454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=7454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=7454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}