{"id":6062,"date":"2012-08-16T13:40:23","date_gmt":"2012-08-16T20:40:23","guid":{"rendered":"http:\/\/offgridsurvival.com\/?p=6062"},"modified":"2023-05-15T15:10:45","modified_gmt":"2023-05-15T22:10:45","slug":"2meterantenna-homebrewdroopygroundplane","status":"publish","type":"post","link":"https:\/\/offgridsurvival.com\/2meterantenna-homebrewdroopygroundplane\/","title":{"rendered":"The \u00bc Wave Droopy Ground Plane 2 Meter Ham Radio Antenna"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2019\/02\/droppyantenna.jpg\" alt=\"\u00bc Wave Droopy Ground Plane Antenna\" class=\"wp-image-28936\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2019\/02\/droppyantenna.jpg 1200w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2019\/02\/droppyantenna-80x42.jpg 80w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2019\/02\/droppyantenna-326x171.jpg 326w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2019\/02\/droppyantenna-678x356.jpg 678w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>In the past we\u2019ve talked about the many <a title=\"Survival Communications \u2013 HAM RADIO\" href=\"https:\/\/offgridsurvival.com\/survivalcommunicationshamradio\/\">benefits of Ham Radio<\/a>, and how every good survival plan should include some type of emergency communications equipment. When the power lines go down and cell phones stop working; the ability to send and receive information is going to be a critical factor in determining the outcome of your situation<\/p>\n\n\n\n<p>In the coming month\u2019s we are going to give some attention to the topic of emergency communication, and show you what it takes to communicate when the grid goes down.<\/p>\n\n\n\n<p>Today, I&#8217;m going to show you how you can easily build a homebrew 2 Meter \u00bc Wave vertical antenna for under $10. This antenna is perfect for HAMS that need a quick reliable solution for local 2 meter communication. It&#8217;s also a great antenna for emergency communication and can be fabricated and launched in a matter of minutes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The \u00bc Wave Droopy Ground Plane Antenna<\/h2>\n\n\n\n<p><strong>ANTENNA PARTS LIST:<\/strong><\/p>\n\n\n\n<p>Keep in mind that this, and most HAM antennas, can be made with parts that you probably already have lying around your home. The parts below are what I used to build the antenna, but you can substitute most of these parts with whatever you have around your house.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1- 1 1\/2&#8243; PVC Pipe<\/li>\n\n\n\n<li>2 &#8211; 1 1\/2&#8243; Adapter<\/li>\n\n\n\n<li>1 -1 1\/2&#8243; &nbsp;Cap<\/li>\n\n\n\n<li>1 -SO-239 Connector<\/li>\n\n\n\n<li>50 ohm Coax<\/li>\n\n\n\n<li>Galvanized Utility Wire (16-14 Gauge) \u2013 Straightened and cut into 5 pieces (lengths below)<\/li>\n\n\n\n<li>4 \u2013 6-32 Stainless Machine Screws<\/li>\n\n\n\n<li>4 \u2013 6-32 Stainless Machine Hex Nuts<\/li>\n\n\n\n<li>4 &#8211; #6 Crimp on Ring Tongue Terminals (16-14 Gauge)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"200\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennaparts.jpg\" alt=\"antenna parts\" class=\"wp-image-6067\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennaparts.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennaparts-326x112.jpg 326w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennaparts-100x34.jpg 100w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Assembling the Antenna<\/h3>\n\n\n\n<p>The first thing I did was to assemble the actual working part of the antenna. To do this I cut and straightened 5 pieces of the galvanized utility wire down to about 20 inches.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"255\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennawireelements.jpg\" alt=\"antenna wire elements\" class=\"wp-image-6071\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennawireelements.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennawireelements-326x143.jpg 326w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antennawireelements-100x44.jpg 100w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p><strong>To figure out the length of your antenna&#8217;s vertical and radial elements, you can use the following formula:<\/strong><\/p>\n\n\n\n<p>Length (in.) = 2808 \/ F<br>F= 146 <span class=\"st\"><em>MHz<\/em><\/span>.<\/p>\n\n\n\n<p>I used the middle of the band which is 146<span class=\"st\"><em>MHz<\/em><\/span>. This calculated out to about 19.25\u201d, which is what I eventually cut the wire down to when I had everything assembled.<\/p>\n\n\n\n<p><strong>Attaching the Vertical Element and Radials<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"289\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radialsso239.jpg\" alt=\"Antenna Radials on a SO-239 Connector\" class=\"wp-image-6073\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radialsso239.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radialsso239-326x162.jpg 326w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radialsso239-100x50.jpg 100w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>Take 4 pieces of wire, which will be used as the antenna&#8217;s radials, and attach them to SO239 mounting holes using the machine screws and the ring tongue terminals.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"241\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/verticalelement.jpg\" alt=\"vertical element soldered to SO-239 center connector\" class=\"wp-image-6075\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/verticalelement.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/verticalelement-326x135.jpg 326w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>Next, solder the vertical element of antenna to the center connector of the SO239 connector.<strong> After you are done soldering and connecting the radials, your connector should look like the picture above.<\/strong><\/p>\n\n\n\n<p class=\"headline\">Final Antenna Assembly:<\/p>\n\n\n\n<p><strong>PVC<\/strong> \u2013 The PVC is used to stabilize the antenna so you can attach it to a tree, a tripod stand or anything that gets it up off ground. If you don\u2019t have PVC, you can use any non-conductive material to build the base.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"245\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/pvccap.jpg\" alt=\"PVC Antenna Base with Cap\" class=\"wp-image-6077\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/pvccap.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/pvccap-326x138.jpg 326w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>Take the 1 1\/2\u201d adapters and glue them to your PVC pipe; one on the top and one on the bottom (the bottom adapter can be used to mount the antenna to a flange for stability). Next drill a 5\/8 inch hole in the top of your 1 1\/2\u201d cap and then attach it to the top adapter.<\/p>\n\n\n\n<p>Slide the coax through the PVC pipe and connect to your SO-239 connector.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"309\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45.jpg\" alt=\"Wire Radials attached to Ground Plane\" class=\"wp-image-6080\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45-80x42.jpg 80w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45-321x171.jpg 321w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45-100x53.jpg 100w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/radials45-326x174.jpg 326w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>Bend your radials at a 45 degree angle; <strong>you now have a working antenna.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"406\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/homebrew2meterantenna.jpg\" alt=\"homebrew 2 meter antenna\" class=\"wp-image-6081\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/homebrew2meterantenna.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/homebrew2meterantenna-244x171.jpg 244w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/homebrew2meterantenna-100x70.jpg 100w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/homebrew2meterantenna-326x228.jpg 326w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p class=\"headline\">Antenna Performance<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"870\" src=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter.jpg\" alt=\"2meter 1\/4 wave antenna\" class=\"wp-image-6082\" srcset=\"https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter.jpg 580w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter-114x171.jpg 114w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter-420x630.jpg 420w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter-67x100.jpg 67w, https:\/\/offgridsurvival.com\/wp-content\/themes\/church_10\/images\/2012\/08\/antenna2meter-200x300.jpg 200w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>For under $10 worth of material, I was able to build a reliable antenna that can easily access all of the local repeaters with only 5 watts of power. At 25 watts, I was able to hit repeaters over 100 miles away<\/p>\n\n\n\n<p><strong>For more information on Ham Radio and Emergency Communication, check out these articles:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.amazon.com\/dp\/B0C52773QD\/?tag=offgridsurvival-20\"><strong>Prepper Radio: The No-BS Ham Radio Technician Exam Prep Guide<\/strong><\/a><br>Your Key to Passing the Amateur Radio Technician License Test and Taking Your Emergency Communication Skills to the Next Level<\/li>\n\n\n\n<li><a href=\"https:\/\/offgridsurvival.com\/shtf-emergency-communications\/\">Emergency Communications When TSHTF<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/offgridsurvival.com\/hamradiocheatsheet\/\">Ham Radio Cheat Sheet<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/offgridsurvival.com\/situational-intel-knowledge-is-power-during-a-crisis\/\">Situational Intel: Knowledge is Power during a Crisis<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/offgridsurvival.com\/hamradiofaq\/\">Ham Radio FAQs<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to can easily build a quick homemade 2 meter antenna for emergency communications.<\/p>\n","protected":false},"author":3,"featured_media":28939,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[42,62],"tags":[],"class_list":{"0":"post-6062","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-emergencycommunication","8":"category-ham-radio"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Make a \u00bc Wave Droopy Ground Plane 2 Meter Radio Antenna<\/title>\n<meta name=\"description\" content=\"Learn how to can easily build a quick homemade 2 meter antenna for emergency communications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/offgridsurvival.com\/2meterantenna-homebrewdroopygroundplane\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Make a \u00bc Wave Droopy Ground Plane 2 Meter Radio Antenna\" \/>\n<meta property=\"og:description\" content=\"Learn how to can easily build a quick homemade 2 meter antenna for emergency communications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/offgridsurvival.com\/2meterantenna-homebrewdroopygroundplane\/\" \/>\n<meta property=\"og:site_name\" content=\"Off Grid Survival - Wilderness &amp; 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