{"id":1253,"date":"2022-03-23T09:51:00","date_gmt":"2022-03-22T22:51:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2022\/03\/23\/first-ever-contact-on-12-meters-homebrew-qrp-ssb-dx-video\/"},"modified":"2025-07-22T18:03:58","modified_gmt":"2025-07-22T08:03:58","slug":"first-ever-contact-on-12-meters-homebrew-qrp-ssb-dx-video","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2022\/03\/23\/first-ever-contact-on-12-meters-homebrew-qrp-ssb-dx-video\/","title":{"rendered":"First Ever Contact on 12 Meters:  Homebrew, QRP, SSB, DX (Video)"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" src=\"https:\/\/www.youtube.com\/embed\/d3KKXmvyp90?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b><span face=\"Roboto, Arial, sans-serif\" style=\"background-color: #f9f9f9; color: #030303; font-size: 14px; white-space: pre-wrap;\">I&#8217;ve recently finished most of the circuitry on the 17-12 meter dual band SSB transceiver. I have had contacts with it on 17 meters, but until yesterday morning (March 22, 2022) I had not had any contacts on 12 meters. This morning I talked to Paul EA5JZ in Valencia, Spain. I was running the 17-12 rig barefoot at about 5 watts with the final being one RD06HHT FET. The antenna was my 75 meter doublet fed with window line &#8212; I had to modify the tuner to get it to work on 24.9 MHz. It was very cool to have my first 12 meter contact be QRP, HB and with Spain.<\/span><br \/><\/b><\/p>\n<p><b>There is a LOT of soul in this new rig. Here is a partial list of contributors: <\/b><\/p>\n<p><b>&#8212; Overall BITX design: Farhan VU2ESE<\/b><\/p>\n<p><b>&#8212; Termination Insensitive Amplifiers (TIA): Wes Hayward W7ZOI and Bob Kopski K3NHI. <\/b><\/p>\n<p><b>&#8212; TIA boards from Todd K7TFC<\/b><\/p>\n<p><b>&#8212; ASK-1 Mixer from Armand WA1UQO<\/b><\/p>\n<p><b>&#8212; VFO design parameters from Joe Carr K4IPV (SK) <\/b><\/p>\n<p><b>&#8212; VFO stability ideas from Frank Harris K0IYE and Mike Murphy WU2D. <\/b><\/p>\n<p><b>&#8212; HT-37 Tuning Capacitor bought from e-bay at suggestion of Pete Juliano N6QW. <\/b><\/p>\n<p><b>&#8212; Pine board base of the rig: Frank Jones (SK) W6AJF&#8217;s preferred building technique. <\/b><\/p>\n<p><b>&#8212; DTC Band-Pass filter circuits from Han Summers G0UPL. <\/b><\/p>\n<p><b>&#8212; Low pass filter values from G-QRP web site. <\/b><\/p>\n<p><b>&#8212; Idea of using RD06HHT instead of IRF-510 in the final: Pete Juliano<\/b><\/p>\n<p><b>&#8212; Heat sink from Chris KD4PBJ<\/b><\/p>\n<p><b>&#8212; Trifilar Toroids used in many places from Farhan VU2ESE.<\/b><\/p>\n<p><b>Thanks to all. 73 Bill <\/b><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve recently finished most of the circuitry on the 17-12 meter dual band SSB transceiver. I have had contacts with it on 17 meters, but until yesterday morning (March 22, 2022) I had not had any contacts on 12 meters. This morning I talked to Paul EA5JZ in Valencia, Spain. I was running the 17-12 &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2022\/03\/23\/first-ever-contact-on-12-meters-homebrew-qrp-ssb-dx-video\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;First Ever Contact on 12 Meters:  Homebrew, QRP, SSB, DX (Video)&#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":[51,52,87,252,253,23],"tags":[],"class_list":["post-1253","post","type-post","status-publish","format-standard","hentry","category-12-meters","category-1712-rig","category-qrp","category-scotland","category-spain","category-ssb"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1253","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=1253"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"predecessor-version":[{"id":11407,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1253\/revisions\/11407"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}