{"id":16719,"date":"2026-03-20T05:42:04","date_gmt":"2026-03-20T00:12:04","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=16719"},"modified":"2026-03-20T05:42:05","modified_gmt":"2026-03-20T00:12:05","slug":"tuning-toko-bandpass-filters-in-easy-bitx","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/tuning-toko-bandpass-filters-in-easy-bitx\/","title":{"rendered":"Tuning TOKO bandpass filters in Easy BITX"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/HzrhUzns8i8?si=T1fj7AXGbkIyKEjg\" 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\">I was wondering which steady signal to use of tuning TOKO bandpass filters in Easy BITX. In my earlier stint on homebrewing about 4 decades back, I used to use signals from broadcast stations to help me tune the IF transformers in the L-board assembled radio which was very popular in those days. The Easy BITX VFO covers only the amateur band, but it went up to 7300 kHz on 40m to cover the larger band plan of some other countries like the United States of America. Our 40m band is only up to 7200 kHz. It was then that VU3IZD told me that there is a broadcast station on 7225 kHz, audible at night, useful for tuning TOKO band pass filters. That was a very useful information. I listened to that station at night and peaked up the audio by turning the inner core of 40m band pass filters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I was wondering which steady signal to use of tuning TOKO bandpass filters in Easy BITX. In my earlier stint on homebrewing about 4 decades back, I used to use signals from broadcast stations to help me tune the IF transformers in the L-board assembled radio which was very popular in those days. The Easy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-16719","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>Tuning TOKO bandpass filters in Easy BITX - 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\/tuning-toko-bandpass-filters-in-easy-bitx\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tuning TOKO bandpass filters in Easy BITX - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"I was wondering which steady signal to use of tuning TOKO bandpass filters in Easy BITX. In my earlier stint on homebrewing about 4 decades back, I used to use signals from broadcast stations to help me tune the IF transformers in the L-board assembled radio which was very popular in those days. 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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":"Tuning TOKO bandpass filters in Easy BITX - 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\/tuning-toko-bandpass-filters-in-easy-bitx\/","og_locale":"en_US","og_type":"article","og_title":"Tuning TOKO bandpass filters in Easy BITX - Johnson&#039;s Techworld","og_description":"I was wondering which steady signal to use of tuning TOKO bandpass filters in Easy BITX. 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