{"id":16734,"date":"2026-03-25T12:23:13","date_gmt":"2026-03-25T06:53:13","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=16734"},"modified":"2026-03-25T12:23:14","modified_gmt":"2026-03-25T06:53:14","slug":"troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/","title":{"rendered":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/zTd9sy85MEI?si=JmnZk7kjGOZjanp5\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n<p class=\"wp-block-paragraph\">VFO output of the Raduino board in Easy BITX is from the 34th pin of the long 40 pin connector soldered to the PCB. That goes to the input of T3 trifilar transformer. From T3 it goes to C42 capacitor at the input of Q10 transistor as well as to the BAT54S diode ring mixer. I checked sequentially at this point and then at the input of the final IRF 510 transistor and found increase in RF voltage while modulating with mic. But no output was noted at the antenna output. So I presume that the IRF 510 final transistor has blown off!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>VFO output of the Raduino board in Easy BITX is from the 34th pin of the long 40 pin connector soldered to the PCB. That goes to the input of T3 trifilar transformer. From T3 it goes to C42 capacitor at the input of Q10 transistor as well as to the BAT54S diode ring mixer. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16736,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-16734","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amateur-radio-ham-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"VFO output of the Raduino board in Easy BITX is from the 34th pin of the long 40 pin connector soldered to the PCB. That goes to the input of T3 trifilar transformer. From T3 it goes to C42 capacitor at the input of Q10 transistor as well as to the BAT54S diode ring mixer. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-25T06:53:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-25T06:53:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe\",\"datePublished\":\"2026-03-25T06:53:13+00:00\",\"dateModified\":\"2026-03-25T06:53:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/\"},\"wordCount\":115,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/\",\"name\":\"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg\",\"datePublished\":\"2026-03-25T06:53:13+00:00\",\"dateModified\":\"2026-03-25T06:53:14+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#primaryimage\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg\",\"contentUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg\",\"width\":1200,\"height\":675},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#website\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/\",\"name\":\"Johnson's Techworld\",\"description\":\"Johnson&#039;s Techworld\",\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\",\"name\":\"Johnson Francis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/channels4_profile.jpg\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/channels4_profile.jpg\",\"contentUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/channels4_profile.jpg\",\"width\":600,\"height\":600,\"caption\":\"Johnson Francis\"},\"logo\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/channels4_profile.jpg\"},\"description\":\"Amateur Radio Operator VU2JO. Originally licensed as VU2JFP with Grade 1 license in 1985. Upgraded to Advanced Grade in 1988 and was allotted new callsign to VU2JO\",\"sameAs\":[\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\",\"https:\\\/\\\/www.youtube.com\\\/@johnsonstechworld\\\/\"],\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/author\\\/jf\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/","og_locale":"en_US","og_type":"article","og_title":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld","og_description":"VFO output of the Raduino board in Easy BITX is from the 34th pin of the long 40 pin connector soldered to the PCB. That goes to the input of T3 trifilar transformer. From T3 it goes to C42 capacitor at the input of Q10 transistor as well as to the BAT54S diode ring mixer. [&hellip;]","og_url":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/","og_site_name":"Johnson&#039;s Techworld","article_published_time":"2026-03-25T06:53:13+00:00","article_modified_time":"2026-03-25T06:53:14+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg","type":"image\/jpeg"}],"author":"Johnson Francis","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Johnson Francis","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#article","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/"},"author":{"name":"Johnson Francis","@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027"},"headline":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe","datePublished":"2026-03-25T06:53:13+00:00","dateModified":"2026-03-25T06:53:14+00:00","mainEntityOfPage":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/"},"wordCount":115,"publisher":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027"},"image":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg","articleSection":["Amateur Radio (Ham Radio)"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/","url":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/","name":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe - Johnson&#039;s Techworld","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/#website"},"primaryImageOfPage":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#primaryimage"},"image":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg","datePublished":"2026-03-25T06:53:13+00:00","dateModified":"2026-03-25T06:53:14+00:00","breadcrumb":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#primaryimage","url":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg","contentUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/03\/Troubleshooting-TX-side-of-Easy-BITX-with-my-homebrew-N5ESE-Classic-RF-Probe.jpg","width":1200,"height":675},{"@type":"BreadcrumbList","@id":"https:\/\/johnsonfrancis.org\/techworld\/troubleshooting-tx-side-of-easy-bitx-with-my-homebrew-n5ese-classic-rf-probe\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/johnsonfrancis.org\/techworld\/"},{"@type":"ListItem","position":2,"name":"Troubleshooting TX side of Easy BITX with my homebrew N5ESE Classic RF Probe"}]},{"@type":"WebSite","@id":"https:\/\/johnsonfrancis.org\/techworld\/#website","url":"https:\/\/johnsonfrancis.org\/techworld\/","name":"Johnson's Techworld","description":"Johnson&#039;s Techworld","publisher":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/johnsonfrancis.org\/techworld\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":["Person","Organization"],"@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027","name":"Johnson Francis","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/01\/channels4_profile.jpg","url":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/01\/channels4_profile.jpg","contentUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/01\/channels4_profile.jpg","width":600,"height":600,"caption":"Johnson Francis"},"logo":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/01\/channels4_profile.jpg"},"description":"Amateur Radio Operator VU2JO. Originally licensed as VU2JFP with Grade 1 license in 1985. Upgraded to Advanced Grade in 1988 and was allotted new callsign to VU2JO","sameAs":["https:\/\/johnsonfrancis.org\/techworld","https:\/\/www.youtube.com\/@johnsonstechworld\/"],"url":"https:\/\/johnsonfrancis.org\/techworld\/author\/jf\/"}]}},"_links":{"self":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/16734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/comments?post=16734"}],"version-history":[{"count":2,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/16734\/revisions"}],"predecessor-version":[{"id":16737,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/16734\/revisions\/16737"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media\/16736"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media?parent=16734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/categories?post=16734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/tags?post=16734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}