{"id":2164,"date":"2016-06-10T18:24:00","date_gmt":"2016-06-10T18:24:00","guid":{"rendered":"http:\/\/www.tsgarc.uk\/?p=2164"},"modified":"2016-06-10T18:25:11","modified_gmt":"2016-06-10T18:25:11","slug":"what-are-iq-signals","status":"publish","type":"post","link":"https:\/\/www.tsgarc.uk\/?p=2164","title":{"rendered":"What are IQ signals?"},"content":{"rendered":"<p>The terms IQ are increasingly commonplace in amateur radio literature. \u00a0Open any copy of Radcom or read anything about Software Defined Radio (SDR) and you will see the terms IQ. \u00a0But what are they?<\/p>\n<p>Since transitioning from a cherished black-box radio last Autumn to SDR I&#8217;ve been meaning to understand the mysteries of IQ. \u00a0Fundamentally, its really very simple. \u00a0But I&#8217;ve read several descriptions on the Internet which, quite frankly, are just confusing &#8211; too many words all trying to convey something that is much easier done visually.<\/p>\n<p>Tonight, I discovered the video below. \u00a0It is\u00a0an excellent description of, not only, IQ but of modulation and especially BPSK, 4PSK and 16PSK. \u00a0I highly recommend taking a few minutes and watching even if you are not interested in SDR and IQ.<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/h_7d-m1ehoY\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><em>Andrew<br \/>\nG0RVM<\/em><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>The terms IQ are increasingly commonplace in amateur radio literature. \u00a0Open any copy of Radcom or read anything about Software Defined Radio (SDR) and you will see the terms IQ. \u00a0But what are they? Since transitioning from a cherished black-box &hellip; <a href=\"https:\/\/www.tsgarc.uk\/?p=2164\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt --><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[17,189,191,190,148],"class_list":["post-2164","post","type-post","status-publish","format-standard","hentry","category-news","tag-g0rvm","tag-iq","tag-modulation","tag-psk","tag-sdr"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/2164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2164"}],"version-history":[{"count":2,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/2164\/revisions"}],"predecessor-version":[{"id":2166,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/2164\/revisions\/2166"}],"wp:attachment":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}