{"id":720,"date":"2023-02-22T10:56:04","date_gmt":"2023-02-22T05:26:04","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=720"},"modified":"2024-02-07T08:04:41","modified_gmt":"2024-02-07T02:34:41","slug":"what-is-a-ground-plane-vertical-antenna-in-amateur-radio","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\/","title":{"rendered":"What is a Ground Plane Vertical Antenna in Amateur Radio?"},"content":{"rendered":"<h2><span style=\"color: #008000;\">What is a Ground Plane Vertical Antenna in Amateur Radio?<\/span><\/h2>\n<p>Ground plane vertical antenna is often used for VHF transmission in Amateur Radio. The vertical portion of the antenna is quarter wave-length. Usually the ground plane is formed by four equally spaced radials, of quarter wave-length each. Central conductor of the coaxial cable is connected to the vertical element and the metallic sleeve of the coax is connected to the radials which form the ground plane.<\/p>\n<figure id=\"attachment_728\" aria-describedby=\"caption-attachment-728\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-728 size-full\" src=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2023\/02\/Ground-Plane-Vertical-Antenna-in-Amateur-Radio.jpg\" alt=\"Ground Plane Vertical Antenna in Amateur Radio\" width=\"650\" height=\"545\" srcset=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2023\/02\/Ground-Plane-Vertical-Antenna-in-Amateur-Radio.jpg 650w, https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2023\/02\/Ground-Plane-Vertical-Antenna-in-Amateur-Radio-300x252.jpg 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><figcaption id=\"caption-attachment-728\" class=\"wp-caption-text\">Ground Plane Vertical Antenna in Amateur Radio<\/figcaption><\/figure>\n<p>Another option is to have a conducting ground plane of at least quarter wave-length in radius. This can be considered for a mobile antenna mounted on top of a metallic vehicle body. It is an omnidirectional antenna which radiates equally in all directions. Feed point impedance is usually half that of a dipole, about 36 Ohms. <a href=\"_wp_link_placeholder\" data-wplink-edit=\"true\">SWR<\/a> will be less than 2:1 when connected with a 50 Ohms coaxial cable.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a Ground Plane Vertical Antenna in Amateur Radio? Ground plane vertical antenna is often used for VHF transmission in Amateur Radio. The vertical portion of the antenna is quarter wave-length. Usually the ground plane is formed by four equally spaced radials, of quarter wave-length each. Central conductor of the coaxial cable is connected [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":727,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-720","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>What is a Ground Plane Vertical Antenna in Amateur Radio? - 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\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a Ground Plane Vertical Antenna in Amateur Radio? - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"What is a Ground Plane Vertical Antenna in Amateur Radio? Ground plane vertical antenna is often used for VHF transmission in Amateur Radio. The vertical portion of the antenna is quarter wave-length. Usually the ground plane is formed by four equally spaced radials, of quarter wave-length each. Central conductor of the coaxial cable is connected [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-22T05:26:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-07T02:34:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2023\/02\/What-is-a-Ground-Plane-Vertical-Antenna-in-Amateur-Radio.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"795\" \/>\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\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"What is a Ground Plane Vertical Antenna in Amateur Radio?\",\"datePublished\":\"2023-02-22T05:26:04+00:00\",\"dateModified\":\"2024-02-07T02:34:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/\"},\"wordCount\":167,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2023\\\/02\\\/What-is-a-Ground-Plane-Vertical-Antenna-in-Amateur-Radio.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/what-is-a-ground-plane-vertical-antenna-in-amateur-radio\\\/\",\"name\":\"What is a Ground Plane Vertical Antenna in Amateur Radio? 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