{"id":5345,"date":"2024-10-30T23:09:00","date_gmt":"2024-10-30T12:09:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2024\/10\/30\/bill-n2cqr-builds-yet-another-mythbuster-transceiver\/"},"modified":"2025-07-22T18:01:20","modified_gmt":"2025-07-22T08:01:20","slug":"bill-n2cqr-builds-yet-another-mythbuster-transceiver","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2024\/10\/30\/bill-n2cqr-builds-yet-another-mythbuster-transceiver\/","title":{"rendered":"Bill N2CQR Builds Yet Another Mythbuster Transceiver"},"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\/1ewnPKx4aP4?si=UNmzJukc-cWr5aK7?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<p><b> <span face=\"Roboto, Arial, sans-serif\" style=\"background-color: rgba(0, 0, 0, 0.05); color: #131313; font-size: 14px; white-space-collapse: preserve;\">This one is for 20 meters (no need for 75) and will go to the Dominican Republic.<\/span><\/b><\/p>\n<p><span face=\"Roboto, Arial, sans-serif\" style=\"background-color: rgba(0, 0, 0, 0.05); color: #131313; font-size: 14px; white-space-collapse: preserve;\"><b>6 crystal filter at 5.2 MHz. VFO from old Yaesu FT-101 Termination Insensitive IF amplifiers using boards from Mostly DIY RF No RF amp ahead of the mixer. First mixer is homebrew diode ring. Bandpass filter has 4 LC circuits. Steep skirts. Low insertion loss. Bal Mod\/Product detector has two diodes (singly balanced) Carrier osc is crystal controlled and homebrew. Audio amp starts with a 2N3904 amplifier followed by an LM386 board. Transmitter portion will be done next.<\/b><\/span><\/p>\n<div><span face=\"Roboto, Arial, sans-serif\" style=\"background-color: rgba(0, 0, 0, 0.05); color: #131313; font-size: 14px; white-space-collapse: preserve;\"><br \/><\/span><\/div>\n<div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8834.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8834.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">The crystal filter as seen on the Antuino<\/div>\n<p><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEjtD48dZY7ULZGST-C6w-GRjEG9IXN_1XtneJmnCA1OwNv_fGU-5NQgyofO6rUQMcjyU8-ADI1VM8TaOb1ecvyIa2pdt7SPzKJMWiDcN_bgWIMaKGFgtrq_-iMA9gnIB9UQQ7e5i9hGd2MB4GQC_MnV9XE1COPc8xQdDdLlCbglXCqXca7G8IS0DsgekRc\/s4032\/IMG_8832.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8832-1.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">Filter on the blank board. <\/div>\n<p><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhFzpARxkN-9USHrB9cTMW6M4vz11wwQxTxVdYoFQU2UwlXwusAZdaNlA6Fk8xRA32AQjl5QquWIozldrNvJhxRCGqnp5reMj7HTWMmq7bmrnRofmXYYo6pwPns-oGZwp8OxVQ0iItSke9RZzJI7Q0_Lq4pI1nZt1YlD68u5JSQN4JIXjYoC0ByANz6g1A\/s4032\/IMG_8856.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"4032\" data-original-width=\"3024\" height=\"400\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8856-1.jpg\" width=\"300\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">Bandpass filter (-20 db = 0)<\/div>\n<p><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8849.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8849.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">VFO box, carrier osc, Bal Mod\/Product Detector, AF amps<\/div>\n<p><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhGeuCjWTPl8-kFTLYkKROcXyCGqSgXv-gig9QcrUqDxKu8Q1cN4Sh5ZPzvsTK7QwaqRNrhDkL4nUj83l9S5WioEe4Q9It-LZMa2UKdHOLeumAN2Q_yfvfvifIPeif17ivK-vn63gZAtpfeBJ5gl-IVsZRGXOjDn0NxddZpzUC4eOzt7HR_PGln3Fgd8IQ\/s4032\/IMG_8833.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2024\/10\/IMG_8833-1.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">The Antuino looks at the Crystal Filter<\/div>\n<p><span face=\"Roboto, Arial, sans-serif\" style=\"background-color: rgba(0, 0, 0, 0.05); color: #131313; font-size: 14px; white-space-collapse: preserve;\"><br \/><\/span><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This one is for 20 meters (no need for 75) and will go to the Dominican Republic. 6 crystal filter at 5.2 MHz. VFO from old Yaesu FT-101 Termination Insensitive IF amplifiers using boards from Mostly DIY RF No RF amp ahead of the mixer. First mixer is homebrew diode ring. Bandpass filter has 4 &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2024\/10\/30\/bill-n2cqr-builds-yet-another-mythbuster-transceiver\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Bill N2CQR Builds Yet Another Mythbuster Transceiver&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":5346,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,109,115,19,66,16,132,23,71],"tags":[],"class_list":["post-5345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-20-meters","category-antuino","category-audio-amplifiers","category-dominican-republic","category-farhan","category-filters","category-mythbuster","category-ssb","category-test-gear"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5345","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=5345"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5345\/revisions"}],"predecessor-version":[{"id":5354,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5345\/revisions\/5354"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/5346"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=5345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=5345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=5345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}