{"id":13637,"date":"2025-03-26T22:53:52","date_gmt":"2025-03-26T17:23:52","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=13637"},"modified":"2025-03-26T23:06:58","modified_gmt":"2025-03-26T17:36:58","slug":"comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/","title":{"rendered":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/h4-QFS9pQ_Y?si=DrDBYH4Fy4x52RiN\" 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\">Trying to compare values shown in <a href=\"https:\/\/johnsonfrancis.org\/techworld\/mastering-the-smith-chart-in-nanovna\/\">Smith Chart in NanoVNA<\/a> to that shown in Antenna Tuner after tuning antenna for a non-resonant frequency. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I was checking my 80m antenna for harmonic resonance on 12m band. It was seen to resonate a bit above the 12m amateur radio band. Antenna  tuner brings back the resonance to the 12m amateur radio band by using the required values of inductance and capacitance. Being an automatic antenna tuner, the process was automated by the microcontroller in the ATU. If it was a manual tuner, adding required inductance from a variable inductor and required capacitance from a variable capacitor would have been my job.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trying to compare values shown in Smith Chart in NanoVNA to that shown in Antenna Tuner after tuning antenna for a non-resonant frequency. I was checking my 80m antenna for harmonic resonance on 12m band. It was seen to resonate a bit above the 12m amateur radio band. Antenna tuner brings back the resonance to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13643,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-13637","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>Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - 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\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"Trying to compare values shown in Smith Chart in NanoVNA to that shown in Antenna Tuner after tuning antenna for a non-resonant frequency. I was checking my 80m antenna for harmonic resonance on 12m band. It was seen to resonate a bit above the 12m amateur radio band. Antenna tuner brings back the resonance to [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-26T17:23:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-26T17:36:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1209\" \/>\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\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner\",\"datePublished\":\"2025-03-26T17:23:52+00:00\",\"dateModified\":\"2025-03-26T17:36:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/\"},\"wordCount\":120,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/\",\"name\":\"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - Johnson&#039;s Techworld\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg\",\"datePublished\":\"2025-03-26T17:23:52+00:00\",\"dateModified\":\"2025-03-26T17:36:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#primaryimage\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg\",\"contentUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg\",\"width\":1209,\"height\":675},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner\"}]},{\"@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":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - 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\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/","og_locale":"en_US","og_type":"article","og_title":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - Johnson&#039;s Techworld","og_description":"Trying to compare values shown in Smith Chart in NanoVNA to that shown in Antenna Tuner after tuning antenna for a non-resonant frequency. I was checking my 80m antenna for harmonic resonance on 12m band. It was seen to resonate a bit above the 12m amateur radio band. Antenna tuner brings back the resonance to [&hellip;]","og_url":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/","og_site_name":"Johnson&#039;s Techworld","article_published_time":"2025-03-26T17:23:52+00:00","article_modified_time":"2025-03-26T17:36:58+00:00","og_image":[{"width":1209,"height":675,"url":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.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\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#article","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/"},"author":{"name":"Johnson Francis","@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027"},"headline":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner","datePublished":"2025-03-26T17:23:52+00:00","dateModified":"2025-03-26T17:36:58+00:00","mainEntityOfPage":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/"},"wordCount":120,"publisher":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/#\/schema\/person\/6201c843e80ccd3578e6196b1d007027"},"image":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg","articleSection":["Amateur Radio (Ham Radio)"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/","url":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/","name":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner - Johnson&#039;s Techworld","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/#website"},"primaryImageOfPage":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#primaryimage"},"image":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg","datePublished":"2025-03-26T17:23:52+00:00","dateModified":"2025-03-26T17:36:58+00:00","breadcrumb":{"@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#primaryimage","url":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg","contentUrl":"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/03\/Comparing-Smith-Chart-in-NanoVNA-and-Tuning-Values-in-Antenna-Tuner.jpg","width":1209,"height":675},{"@type":"BreadcrumbList","@id":"https:\/\/johnsonfrancis.org\/techworld\/comparing-smith-chart-in-nanovna-and-tuning-values-in-antenna-tuner\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/johnsonfrancis.org\/techworld\/"},{"@type":"ListItem","position":2,"name":"Comparing Smith Chart in NanoVNA and Tuning Values in Antenna Tuner"}]},{"@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\/13637","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=13637"}],"version-history":[{"count":6,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/13637\/revisions"}],"predecessor-version":[{"id":13645,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/13637\/revisions\/13645"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media\/13643"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media?parent=13637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/categories?post=13637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/tags?post=13637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}