{"id":10663,"date":"2026-02-02T02:00:00","date_gmt":"2026-02-02T01:00:00","guid":{"rendered":"https:\/\/www.ik0vve.net\/?p=10663"},"modified":"2026-01-26T09:41:46","modified_gmt":"2026-01-26T08:41:46","slug":"pills-of-technique-the-vertical-ground-plane-go-vertical-go-far","status":"publish","type":"post","link":"https:\/\/www.ik0vve.net\/?p=10663","title":{"rendered":"\u201cPills of Technique\u201d: The Vertical Ground Plane \u2013 Go Vertical, Go Far!"},"content":{"rendered":"\n<p>If you don&#8217;t have two tall trees for a dipole, don&#8217;t worry! You can go <strong>vertical<\/strong>. Vertical antennas are famous for their <strong>low angle of radiation<\/strong>, which is perfect for reaching distant countries (DX).<\/p>\n\n\n\n<h3>1. What is a Ground Plane (GP)?<\/h3>\n\n\n\n<p>A Ground Plane antenna is essentially &#8220;half a dipole&#8221; placed vertically. Since it&#8217;s missing the other half, we create an &#8220;artificial ground&#8221; using wires called <strong>radials<\/strong>.<\/p>\n\n\n\n<ul>\n<li><strong>The Radiator:<\/strong> The vertical element (the signal).<\/li>\n\n\n\n<li><strong>The Radials:<\/strong> The horizontal or sloping wires (the mirror).<\/li>\n<\/ul>\n\n\n\n<h3>2. DIY: A 10-Meter Ground Plane<\/h3>\n\n\n\n<p>The 10-meter band (28 MHz) is perfect for DIY because the antenna is small (only about 2.5 meters tall).<\/p>\n\n\n\n<p><strong>Materials needed:<\/strong><\/p>\n\n\n\n<ul>\n<li>One SO-239 connector (chassis mount).<\/li>\n\n\n\n<li>Stiff wire (aluminum, copper, or even a wire on a insulated rod).<\/li>\n\n\n\n<li>4 wires for radials.<\/li>\n<\/ul>\n\n\n\n<p><strong>How to build it:<\/strong><\/p>\n\n\n\n<ol start=\"1\">\n<li><strong>The Vertical Whip:<\/strong> Cut a wire to <strong>2.6 meters<\/strong> and solder it to the center pin of the SO-239.<\/li>\n\n\n\n<li><strong>The Radials:<\/strong> Connect 4 wires (each <strong>2.7 meters<\/strong> long) to the four holes of the SO-239 flange.<\/li>\n\n\n\n<li><strong>The Secret Angle:<\/strong> Tilt the radials downwards at about <strong>45 degrees<\/strong>. This trick brings the impedance close to <strong>50 Ohms<\/strong>, so you get a perfect SWR!<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2026\/01\/image-6.png\"><img decoding=\"async\" loading=\"lazy\" width=\"330\" height=\"540\" src=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2026\/01\/image-6.png\" alt=\"\" class=\"wp-image-10664\" srcset=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2026\/01\/image-6.png 330w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2026\/01\/image-6-183x300.png 183w\" sizes=\"(max-width: 330px) 100vw, 330px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3>3. Magic on 10 Meters: Few Watts, Thousands of Miles<\/h3>\n\n\n\n<p>The 10-meter band is magical. When the <strong>Solar Cycle<\/strong> is at its peak (like now!), the ionosphere becomes a perfect mirror.<\/p>\n\n\n\n<ul>\n<li><strong>Low Power, High Fun:<\/strong> You don&#8217;t need 100 Watts. With just <strong>5 or 10 Watts<\/strong> (QRP) and this simple vertical antenna, you can easily talk from Europe to South America or the USA.<\/li>\n\n\n\n<li><strong>Compact size:<\/strong> Because it\u2019s small, you can mount it on a simple pole or even take it to a park!<\/li>\n\n\n\n<li><strong>Check your signal:<\/strong> Want to see where your few watts are going? Use the <strong>Reverse Beacon Network (RBN)<\/strong> or check the online <strong>Grabbers<\/strong> (like the ones on my site!). These systems will show you in real-time if your signal is being heard across the ocean.<\/li>\n<\/ul>\n\n\n\n<h3>4. Deepening and Technical Resources<\/h3>\n\n\n\n<ul>\n<li><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/m0ukd.com\/calculators\/quarter-wave-ground-plane-antenna-calculator\/\" target=\"_blank\">M0UKD &#8211; 1:4 Wave Ground Plane Calculator<\/a>:<\/strong> A great tool to calculate the exact length for any frequency.<\/li>\n\n\n\n<li><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.google.com\/search?q=http:\/\/www.arrl.org\/vertical-antennas\" target=\"_blank\">ARRL &#8211; Vertical Antenna Basics<\/a>:<\/strong> For those who want to learn more about the importance of the grounding system.<\/li>\n\n\n\n<li><strong><a rel=\"noreferrer noopener\" href=\"http:\/\/www.reversebeacon.net\" target=\"_blank\">Reverse Beacon Network<\/a>:<\/strong> To see who is receiving your CW or Digital signal.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p><strong>Pro Tip:<\/strong> If you mount your GP at ground level, you need many radials on the grass. If you mount it high (on a roof or mast), just 3 or 4 resonant radials are enough to work the world!<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p><strong>Coming Soon:<\/strong> We have seen the Ground Plane &#8220;in the air&#8221;, but what if you want to mount your antenna directly on the lawn? In a future post, we will talk about <strong>Ground-Mounted Verticals and Buried Radials<\/strong> \u2013 the secret for a stealth and efficient setup!<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Next Step:<\/strong> Ready for something different? In the next pill, we will talk about the <strong>Magnetic Loop<\/strong> \u2013 the small antenna that defies physics!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you don&#8217;t have two tall trees for a dipole,<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[24,179,195,168,192,194],"tags":[197,180,198,169,199,196],"_links":{"self":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/10663"}],"collection":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10663"}],"version-history":[{"count":5,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/10663\/revisions"}],"predecessor-version":[{"id":10672,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/10663\/revisions\/10672"}],"wp:attachment":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}