{"id":1508,"date":"2013-04-10T20:05:40","date_gmt":"2013-04-10T18:05:40","guid":{"rendered":"http:\/\/www.dotmana.com\/weblog\/?p=1508"},"modified":"2013-04-10T20:08:36","modified_gmt":"2013-04-10T18:08:36","slug":"skytraxx-2-0-interferences-vhf-radio","status":"publish","type":"post","link":"http:\/\/www.dotmana.com\/weblog\/2013\/04\/skytraxx-2-0-interferences-vhf-radio\/","title":{"rendered":"Skytraxx 2.0 interferences VHF radio"},"content":{"rendered":"<p>I&#8217;m facing this problem: I have a <a href=\"http:\/\/www.flugvario.de\/index.php?lang=en\" target=\"_blank\">Skytraxx 2.0<\/a> (GPS variometer for paraglider) and a <a href=\"http:\/\/www.409shop.com\/409shop_product.php?id=104131\" target=\"_blank\">Puxing PX-888 <\/a>VHF ham radio.<br \/>\nWhen the variometer emits sounds, it triggers the radio whatever the squelch setting is set on.<br \/>\nA quick video of the problem:<br \/>\n<iframe loading=\"lazy\" src=\"http:\/\/player.vimeo.com\/video\/63732464\" frameborder=\"0\" width=\"500\" height=\"281\"><\/iframe><\/p>\n<p>While I&#8217;m doubtful about the CE certification of this very cheap Chinese radio (a CE sticker is present in the battery tray but doesn&#8217;t mean much&#8230;).<\/p>\n<p>So, as I&#8217;m not planning to change neither the radio or the variometer, I came along with this fix: put aluminum foil inside the variometer case.\n\t\t<style>\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 25%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-1508 gallery-columns-4 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123602-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123602-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123635-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123635-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123510-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123510-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123543-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123543-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123755-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123755-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123820-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123820-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123852-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123852-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123906-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_123906-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124009-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124009-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124055-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124055-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124319-resized.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.dotmana.com\/weblog\/wp-content\/uploads\/IMG_20130410_124319-resized-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n<\/p>\n<p>Very easy to do, juste make sure the aluminium touches the usb connector when you close it and everything else is well insulated (pin with kapton tape, etc..).<\/p>\n<p>Now the same test with the aluminium shield:<br \/>\n<iframe loading=\"lazy\" src=\"http:\/\/player.vimeo.com\/video\/63732462\" frameborder=\"0\" width=\"500\" height=\"281\"><\/iframe><\/p>\n<p>Much better: can use for competitions now, with the mini solar vario <a href=\"http:\/\/www.lebipbip.com\/the-bip-bip\/\" target=\"_blank\">leBipBip<\/a>.<\/p>\n<p>It even seems to improve the time to fix, usualy took 5min and now about 1-2min.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m facing this problem: I have a Skytraxx 2.0 (GPS variometer for paraglider) and a Puxing PX-888 VHF ham radio. When the variometer emits sounds, it triggers the radio whatever the squelch setting is set on. A quick video of &hellip; <a href=\"http:\/\/www.dotmana.com\/weblog\/2013\/04\/skytraxx-2-0-interferences-vhf-radio\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,25,28],"tags":[],"class_list":["post-1508","post","type-post","status-publish","format-standard","hentry","category-electronics","category-embedded","category-parapente"],"_links":{"self":[{"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/posts\/1508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/comments?post=1508"}],"version-history":[{"count":19,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/posts\/1508\/revisions"}],"predecessor-version":[{"id":1537,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/posts\/1508\/revisions\/1537"}],"wp:attachment":[{"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/media?parent=1508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/categories?post=1508"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dotmana.com\/weblog\/wp-json\/wp\/v2\/tags?post=1508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}