{"id":50524,"date":"2024-10-29T11:34:41","date_gmt":"2024-10-29T09:34:41","guid":{"rendered":"https:\/\/www.cqdx.ru\/ham\/?p=50524"},"modified":"2024-10-29T11:34:41","modified_gmt":"2024-10-29T09:34:41","slug":"kv4p-ht-homebrew-vhf-radio","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/diy\/kv4p-ht-homebrew-vhf-radio\/","title":{"rendered":"kv4p HT &#8211; homebrew VHF radio"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong>kv4p HT<\/strong> is a homebrew VHF radio that makes your phone capable of voice and text communication completely off-grid with at least a Technician class amateur radio license.<\/p>\n<p style=\"text-align: justify;\">The radio simply plugs into the USB C port on your Android smartphone and transforms it into a fully-fledged handheld radio transceiver. It&#8217;s completely open source (<a href=\"https:\/\/www.gnu.org\/licenses\/gpl-3.0.en.html#license-text\" target=\"_new\" rel=\"noopener\">GPL3<\/a>): the Android app, ESP32 firmware, PCB designs, and 3D printer files.<\/p>\n<p style=\"text-align: justify;\">It&#8217;s small enough to fit in your pocket and take anywhere, and since it has no internal battery it&#8217;s the perfect radio to put in a go-bag or your car&#8217;s glove compartment.<\/p>\n<p style=\"text-align: justify;\"><b>NOTE:<\/b>\u00a0kv4p HT is an open source project you build yourself and has absolutely no warranty, or guarantees on functionality or reliability!<\/p>\n<p style=\"text-align: justify;\">Can be built with parts costing a total of $35 (approximately 5,300 yen ~ 34 USD).<\/p>\n<p style=\"text-align: center;\"><div class=\"lyte-wrapper\" title=\"kv4p HT step-by-step build instructions - turn your phone into a modern ham radio\" style=\"width:640px;max-width:100%;margin:5px auto;\"><div class=\"lyMe hidef\" id=\"WYL_TTboBthcY18\"><div id=\"lyte_TTboBthcY18\" data-src=\"https:\/\/i.ytimg.com\/vi\/TTboBthcY18\/maxresdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\">kv4p HT step-by-step build instructions - turn your phone into a modern ham radio<\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/TTboBthcY18\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/TTboBthcY18\/0.jpg\" alt=\"kv4p HT step-by-step build instructions - turn your phone into a modern ham radio\" width=\"640\" height=\"340\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:640px;margin:5px auto;\"><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-50510 aligncenter\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2024\/10\/00_m.jpg\" alt=\"\" width=\"560\" height=\"315\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-50511 aligncenter\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2024\/10\/12_m.png\" alt=\"\" width=\"560\" height=\"359\" \/><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-50512 aligncenter\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2024\/10\/01_m.jpg\" alt=\"\" width=\"560\" height=\"315\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-50513 aligncenter\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2024\/10\/04_m.jpg\" alt=\"\" width=\"560\" height=\"420\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-50514 aligncenter\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2024\/10\/05_m.jpg\" alt=\"\" width=\"560\" height=\"420\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.kv4p.com\/\" target=\"_blank\" rel=\"noopener\">Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>kv4p HT is a homebrew VHF radio that makes your phone capable of voice and text communication completely off-grid with at least a Technician class amateur radio license. The radio simply plugs into the USB C port on your Android smartphone and transforms it into a fully-fledged handheld radio transceiver. It&#8217;s completely open source (GPL3):&hellip;<\/p>\n","protected":false},"author":1,"featured_media":50510,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[554],"class_list":["post-50524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diy","tag-diy","category-2","description-off"],"_links":{"self":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/50524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/comments?post=50524"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/50524\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/50510"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=50524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=50524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=50524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}