Sporadic E<\/strong>\u00a0is one on the most interesting forms of propagation – as the name indicates it occurs sporadically and many of the mechanisms behind it are not well understood.<\/p>\n Sporadic E arises when clouds of intense ionisation occur in the E region of the ionosphere. Initially these will affect the lower frequency bands, and it can produce openings on 10 metres and as the frequency rises, 6 metres, 4 metres and occasionally 2 metres may be affected. When 2 metres is affected, openings are often quite short – an hour or two is long, but openings of a few minutes only are known.<\/p>\n During the course of an opening the direction of the propagation can change significantly as the ionisation clouds are blown about by the winds in the upper atmosphere.<\/p>\n Find out more about this mysterious form of radio propagation that can be sued to good effect on many of the HF and VHF amateur bands:<\/p>\n https:\/\/www.electronics-notes.com\/articles\/antennas-propagation\/ionospheric\/sporadic-e-es.php<\/a><\/p>\n Best regards,<\/p>\n Ian G3YWX<\/strong><\/em><\/p>\n Ian Poole Facts Behind Sporadic E Sporadic E\u00a0is one on the most interesting forms of propagation – as the name indicates it occurs sporadically and many of the mechanisms behind it are not well understood. Sporadic E arises when clouds of intense Read more\u2026 <\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1319","post","type-post","status-publish","format-standard","hentry","category-archive"],"_links":{"self":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/1319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/comments?post=1319"}],"version-history":[{"count":1,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/1319\/revisions"}],"predecessor-version":[{"id":1320,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/1319\/revisions\/1320"}],"wp:attachment":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/media?parent=1319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/categories?post=1319"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/tags?post=1319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nEditor: Electronics Notes (https:\/\/www.electronics-notes.com<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"