{"id":6277,"date":"2025-05-17T10:06:00","date_gmt":"2025-05-17T00:06:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2025\/05\/17\/paul-9v1-km7abzs-fb-singapore-soldersmoke-direct-conversion-receiver\/"},"modified":"2025-07-22T12:36:17","modified_gmt":"2025-07-22T02:36:17","slug":"paul-9v1-km7abzs-fb-singapore-soldersmoke-direct-conversion-receiver","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2025\/05\/17\/paul-9v1-km7abzs-fb-singapore-soldersmoke-direct-conversion-receiver\/","title":{"rendered":"Paul 9V1\/KM7ABZ&#8217;s FB SINGAPORE SolderSmoke Direct Conversion Receiver"},"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\/Pek-wT96I2Q?si=eCXTOz1_NBCa_VZ0?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>Wow, I had been feeling a bit discourged about the slow-down in receiver completions, then I woke up this morning and found this e-mail from Singapore. My faith in ham radio was restored. Welcome to the Hall of Fame Paul. You get extra credit for doing it from far-off and exotic Singapore. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Paul includes in his &#8220;proof of life&#8221; video not only some Malaysian SSB and some CW, but also some very close-by China Radio International. FB Paul. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>I also liked the way Paul used the local library to burn the schematic of the receiver burned into the board upon which it was placed. And the library also 3D printed his PTO coil form. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEicT27cR_LJoLvWh6BzGP8Lso_olP2DUI3wFaRC6QfxPhbKs0fOAxVUfWvuI-nlqsytOr5XpoEdFAm0hfa3MaoR7XRBTNy6XWZAVPE_VbQpxfCEtcNwaNI6mmFccpi2IAfukB9-Ktl0m0UNg2c7PP3ykdwWZJwsCE0G965QwTsgMYhF9Omz6qv4MLiRtLE\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" data-original-height=\"960\" data-original-width=\"1280\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2025\/05\/image_1753094343.png\" width=\"400\" \/><\/a><\/div>\n<p><\/b><b>And ET confirmed Proof of Life! FB! <\/b><\/div>\n<div><\/div>\n<div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEgjgnCVVXxSAKTGNO6d191aEUXLoWcxwohCKd552JotZXcLL5LUF2Ta3PttdxLn4ud7kGwg1oaqMtqICfQT7xPG-KXzR3EW-c17YC_nxZrAAxEgqjjcsnvpiNOB-3xiTxTO_2N_qACxHPT9jMQtggMAKCcZDmFr-muQYHMlqrsltD9OVGGLzZ0VY8Escbk\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" data-original-height=\"503\" data-original-width=\"444\" height=\"400\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2025\/05\/image_1753094340.png\" width=\"353\" \/><\/a><\/div>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><b>Be sure to check out the really nice build description in Paul&#8217;s blog and Github page (links below):<\/b> <\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<div><b>Paul writes: <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div>\n<div><b><i>Hi Bill, Pete, and Dean,<\/i><\/b><\/div>\n<div><b><i><br \/><\/i><\/b><\/div>\n<div><b><i>I&#8217;ve finally made a &#8220;proof of life&#8221; video for you, plucking some CW, voice and shortwave signals from the 40 and 41m bands here in Singapore. What fun this was, and I am amazed at how well this works, even from the confines of my 15th floor apartment.<\/i><\/b><\/div>\n<div><b><i><br \/><\/i><\/b><\/div>\n<div><a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.youtube.com\/watch?v%3DPek-wT96I2Q&#038;source=gmail&#038;ust=1747557966217000&#038;usg=AOvVaw2MsaPFIFMPoLLAX8MdBOXn\" href=\"https:\/\/www.youtube.com\/watch?v=Pek-wT96I2Q\" style=\"color: #1155cc;\" target=\"_blank\"><b><i>https:\/\/www.youtube.com\/watch?<wbr><\/wbr>v=Pek-wT96I2Q<\/i><\/b><\/a><\/div>\n<div><b><i><br \/><\/i><\/b><\/div>\n<div><b><i>Thank you so much for laying down the challenge &#8211; it came at just the right time for me, rekindling my enthusiasm and electronics and radio. It even encouraged me to finally get my license &#8211; I&#8217;m newly minted general class KM7ABZ (yet to get a 9V1 conversion license for my home here in Singapore). I can honestly say that listening to the SolderSmoke and Ham Radio Workbench podcasts since 2018 or so was worth *at least* 50% on the exam&#8230; somehow I already knew a bunch of stuff by pure osmosis!<\/i><\/b><\/div>\n<div><b><i><br \/><\/i><\/b><\/div>\n<div><b><i>Everything went pretty smoothly with the build. The only real issue I had was adding some caps to tame persistent motor-boating in the audio amp. Other than that, the build follows the official SolderSmoke schematic and parts selections.<\/p>\n<p>I used the laser cutters at our local library to cut and etch a custom base. The library is a great resource: it\u2019s also where I printed the PTO former.<\/p>\n<p>To get on the air from my apartment in Singapore, I\u2019m using an MLA-30 Active Loop antenna, with a PLJ-1601 frequency counter attached to the PTO to take some of the guesswork out of tuning.<\/i><\/b><\/div>\n<div><b><i><br \/><\/i><\/b><\/div>\n<div><b><i>All the details of my build are published at <a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/leap.tardate.com\/radio\/soldersmokedcrx\/&#038;source=gmail&#038;ust=1747557966217000&#038;usg=AOvVaw0QrdQdkwhE8jgf9PwDDa2x\" href=\"https:\/\/leap.tardate.com\/radio\/soldersmokedcrx\/\" style=\"color: #1155cc;\" target=\"_blank\">https:\/\/leap.tardate.com\/<wbr><\/wbr>radio\/soldersmokedcrx\/<\/a> (from GitHub).<\/i><\/b><\/div>\n<p><b><i><br \/><\/i><\/b><\/p>\n<div><b><i>Cheers,<\/i><\/b><\/div>\n<div><b><i>Paul<\/i><\/b><\/div>\n<div><b><i><img decoding=\"async\" alt=\"\ud83c\udf89\" aria-label=\"\ud83c\udf89\" class=\"an1\" data-emoji=\"\ud83c\udf89\" draggable=\"false\" loading=\"lazy\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2025\/05\/72.png\" style=\"height: 1.2em; vertical-align: middle; width: 1.2em;\" \/>KM7ABZ<img decoding=\"async\" alt=\"\ud83c\udf89\" aria-label=\"\ud83c\udf89\" class=\"an1\" data-emoji=\"\ud83c\udf89\" draggable=\"false\" loading=\"lazy\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2025\/05\/72.png\" style=\"height: 1.2em; vertical-align: middle; width: 1.2em;\" \/> from 9V1 land<\/i><\/b><\/div>\n<div><a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/leap.tardate.com&#038;source=gmail&#038;ust=1747557966217000&#038;usg=AOvVaw2vdWIvvKLKaRfyGA3xlBvO\" href=\"https:\/\/leap.tardate.com\/\" style=\"color: #1155cc;\" target=\"_blank\"><b><i>https:\/\/leap.tardate.com<\/i><\/b><\/a><\/div>\n<div class=\"yj6qo\"><\/div>\n<div class=\"adL\"><br style=\"background-color: white; color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small;\" \/><\/div>\n<div class=\"adL\">______________________________<\/div>\n<div class=\"adL\"><\/div>\n<div class=\"adL\">\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\">Join the discussion &#8211; SolderSmoke Discord Server:<\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"color: #1155cc; font-size: 12pt;\"><a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/discord.gg\/Fu6B7yGxx2&#038;source=gmail&#038;ust=1739470652838000&#038;usg=AOvVaw1ZoxkyzfQb8pwED_KtyCKW\" href=\"https:\/\/discord.gg\/Fu6B7yGxx2\" style=\"color: #1155cc; cursor: pointer; text-decoration-line: none;\" target=\"_blank\"><span style=\"color: #0066cc;\">https:\/\/discord.gg\/Fu6B7yGxx2<\/span><\/a><\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"> <\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\">Documentation on Hackaday:<\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/hackaday.io\/project\/190327-high-schoolers-build-a-radio-receiver&#038;source=gmail&#038;ust=1739470652838000&#038;usg=AOvVaw026vJuHIWdv6aJ9NJ9QDHJ\" href=\"https:\/\/hackaday.io\/project\/190327-high-schoolers-build-a-radio-receiver\" style=\"color: #1155cc; cursor: pointer; text-decoration-line: none;\" target=\"_blank\">https:\/\/hackaday.io\/project\/<wbr><\/wbr>190327-high-schoolers-build-a-<wbr><\/wbr>radio-receiver<\/a><\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"> <\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"background: rgb(255, 255, 255); color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small; margin: 0px;\"><b><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\">SolderSmoke YouTube channel:<\/span><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><u><\/u><u><\/u><\/span><\/b><\/p>\n<div style=\"background-color: white; color: #333333; font-family: \"Trebuchet MS\", Verdana, Arial, sans-serif; font-size: 12.61px;\"><b style=\"color: #222222; font-family: Arial, Helvetica, sans-serif; font-size: small;\"><span face=\"Arial, sans-serif\" style=\"font-size: 12pt;\"><a data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.youtube.com\/@soldersmoke&#038;source=gmail&#038;ust=1739470652838000&#038;usg=AOvVaw3FnV3eIUU7IiaVG8c_Qd3v\" href=\"https:\/\/www.youtube.com\/@soldersmoke\" style=\"color: #1155cc; cursor: pointer; text-decoration-line: none;\" target=\"_blank\">https:\/\/www.youtube.com\/@<wbr><\/wbr>soldersmoke<\/a><\/span><\/b><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Wow, I had been feeling a bit discourged about the slow-down in receiver completions, then I woke up this morning and found this e-mail from Singapore. My faith in ham radio was restored. Welcome to the Hall of Fame Paul. You get extra credit for doing it from far-off and exotic Singapore. Paul includes in &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2025\/05\/17\/paul-9v1-km7abzs-fb-singapore-soldersmoke-direct-conversion-receiver\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Paul 9V1\/KM7ABZ&#8217;s FB SINGAPORE SolderSmoke Direct Conversion Receiver&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":6278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,11,103,37,12],"tags":[],"class_list":["post-6277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-receiver-build","category-dc-rx-hall-of-fame","category-knack-stories","category-singapore","category-tj-dc-rx"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6277","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=6277"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6277\/revisions"}],"predecessor-version":[{"id":6281,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6277\/revisions\/6281"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/6278"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=6277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=6277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=6277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}