{"id":17061,"date":"2026-05-10T16:37:06","date_gmt":"2026-05-10T11:07:06","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=17061"},"modified":"2026-05-10T16:44:56","modified_gmt":"2026-05-10T11:14:56","slug":"am-radio-for-emergency-go-kits","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/am-radio-for-emergency-go-kits\/","title":{"rendered":"AM Radio for Emergency Go Kits"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/WPMZE2iBd84?si=tS8r304QnJBKEtvy\" 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><\/p>\n\n\n<p class=\"wp-block-paragraph\">Including an <strong>AM (Medium Wave) radio<\/strong> in a &#8220;Go Kit&#8221; is one of the most practical decisions for emergency preparedness. While FM is great for local music and high-fidelity sound, AM signals travel much further\u2014especially at night\u2014and can penetrate obstacles like buildings and mountains more effectively.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is a breakdown of what to look for and how to integrate an AM radio into your emergency setup.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Why AM is Essential for Emergencies<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Propagation:<\/strong> AM signals use &#8220;ground wave&#8221; propagation during the day to cover large areas and &#8220;sky wave&#8221; at night, reflecting off the ionosphere to travel hundreds or even thousands of kilometers.<\/li>\n\n\n\n<li><strong>Information Hub:<\/strong> In many regions, government emergency broadcast systems and news outlets prioritize AM frequencies because of their wide reach.<\/li>\n\n\n\n<li><strong>Power Efficiency:<\/strong> Simple AM receivers generally consume less power than smartphones or complex digital transceivers.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">I bought XHDATA D219 AM\/FM\/SW 12 Bands Radio from Amazon recently (after a reference from a YouTube Viewer!): <a href=\"https:\/\/amzn.to\/3RvwtS8\">https:\/\/amzn.to\/3RvwtS8<\/a>. If you buy from this link, Amazon will pay me a small amount as an affiliate, at no extra cost to the buyer!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Key Features for a &#8220;Go Kit&#8221; Radio<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When selecting a radio, look for these specific &#8220;survival&#8221; features:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Power Versatility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Your radio should ideally have at least three ways to stay powered:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Disposable Batteries:<\/strong> Standard AA or AAA batteries (alkaline or lithium) are reliable and easy to swap.<\/li>\n\n\n\n<li><strong>Internal Rechargeable Battery:<\/strong> Often 18650 Li-ion cells, which can be charged via USB.<\/li>\n\n\n\n<li><strong>Manual Crank:<\/strong> A built-in dynamo to provide a few minutes of listening for a few minutes of winding.<\/li>\n\n\n\n<li><strong>Solar Panel:<\/strong> Useful for maintaining a &#8220;trickle charge&#8221; while the kit is sitting in the sun.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Band Coverage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">While the focus is AM, additional bands provide extra layers of redundancy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>FM:<\/strong> For local emergency alerts and clear audio.<\/li>\n\n\n\n<li><strong>Shortwave (SW):<\/strong> Essential if local infrastructure fails completely, allowing you to hear international broadcasts.<\/li>\n\n\n\n<li><strong>Weather Bands:<\/strong> In some regions, dedicated frequencies provide 24\/7 meteorological updates.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Build Quality<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Durability:<\/strong> Look for &#8220;ruggedized&#8221; frames or rubberized edges.<\/li>\n\n\n\n<li><strong>Water Resistance:<\/strong> An IPX3 or higher rating is ideal for use during heavy rain or monsoon conditions.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">IPX3 is an Ingress Protection (IP) rating that signifies a device is protected against sprayed water\u2014specifically water sprayed at an angle up to (60\u00b0) from the vertical. While IPX3 deals with sprayed water (60\u00b0 angle), IPX4 offers higher protection against splashing water from all directions. The &#8220;X&#8221; indicates the device has not been formally tested for dust resistance. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Recommended Radio Categories<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Type<\/strong><\/td><td><strong>Pros<\/strong><\/td><td><strong>Cons<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Pocket Radio<\/strong><\/td><td>Ultra-light, very long battery life, discreet.<\/td><td>Limited speaker volume, usually lacks a crank\/solar.<\/td><\/tr><tr><td><strong>All-in-One Emergency<\/strong><\/td><td>Includes flashlight, power bank, and siren.<\/td><td>Can be bulky; solar\/crank components can be fragile.<\/td><\/tr><tr><td><strong>DSP World Band<\/strong><\/td><td>Exceptional sensitivity and selectivity; handles weak signals.<\/td><td>Higher cost; slightly higher power consumption.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">In the context of emergency gear and radio electronics, a <strong>crank<\/strong> is a fold-out handle attached to a small internal <strong>dynamo<\/strong> (a manual generator). It allows you to convert physical muscle power into electrical energy to charge the radio\u2019s battery when no other power source is available. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>DSP (Digital Signal Processing)<\/strong> World Band radio is a modern evolution of the traditional portable receiver. Unlike older &#8220;analog&#8221; radios that used coils, capacitors, and crystals to tune into stations, a DSP radio converts the incoming radio frequency (RF) into a digital signal almost immediately.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Tips for Best Performance<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Internal Ferrite Bar:<\/strong> AM radios use an internal ferrite rod antenna. Because this antenna is directional, you can often &#8220;null out&#8221; interference or boost a weak signal simply by rotating the radio 90 degrees.<\/li>\n\n\n\n<li><strong>External Wire:<\/strong> For shortwave or distant AM stations, carrying a simple 5\u201310 meter length of thin copper wire with an alligator clip can significantly boost reception when clipped to the radio&#8217;s telescopic antenna.<\/li>\n\n\n\n<li><strong>Avoid Interference:<\/strong> Modern electronics (LED lights, cheap solar controllers, and phone chargers) generate significant RF noise on the AM band. When trying to hear a weak emergency broadcast, move away from other electronic devices.<\/li>\n\n\n\n<li><strong>Maintenance:<\/strong> Every 6 months, check the batteries for leakage. If storing the kit long-term, keep the batteries in a separate waterproof bag rather than inside the radio&#8217;s compartment.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. The &#8220;Wildcard&#8221; Addition: A Small SDR<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you already have a laptop or a tablet in your kit, a small <strong>USB SDR (Software Defined Radio) dongle<\/strong> is a powerful backup. It allows you to visualize the RF spectrum and &#8220;see&#8221; where the active signals are across a massive range of frequencies, though it requires significantly more power than a standalone radio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Including an AM (Medium Wave) radio in a &#8220;Go Kit&#8221; is one of the most practical decisions for emergency preparedness. While FM is great for local music and high-fidelity sound, AM signals travel much further\u2014especially at night\u2014and can penetrate obstacles like buildings and mountains more effectively. Here is a breakdown of what to look for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":17064,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-17061","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 v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AM Radio for Emergency Go Kits - 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\/am-radio-for-emergency-go-kits\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AM Radio for Emergency Go Kits - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"Including an AM (Medium Wave) radio in a &#8220;Go Kit&#8221; is one of the most practical decisions for emergency preparedness. 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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\/"}]}},"_links":{"self":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/17061","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=17061"}],"version-history":[{"count":5,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/17061\/revisions"}],"predecessor-version":[{"id":17067,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/posts\/17061\/revisions\/17067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media\/17064"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/media?parent=17061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/categories?post=17061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/techworld\/wp-json\/wp\/v2\/tags?post=17061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}