{"id":713,"date":"2020-11-21T20:11:10","date_gmt":"2020-11-21T19:11:10","guid":{"rendered":"https:\/\/ok5cav.cz\/?p=713"},"modified":"2020-11-21T20:20:48","modified_gmt":"2020-11-21T19:20:48","slug":"obri-antena-v-arecibu-se-bude-likvidovat","status":"publish","type":"post","link":"https:\/\/ok5cav.cz\/index.php\/2020\/11\/21\/obri-antena-v-arecibu-se-bude-likvidovat\/","title":{"rendered":"Ob\u0159\u00ed ant\u00e9na v Arecibu se bude likvidovat"},"content":{"rendered":"\n<p>Jak <a href=\"https:\/\/www.theverge.com\/2020\/11\/19\/21575025\/arecibo-observatory-puerto-rico-decommission-structural-collapse-cable-break\" data-type=\"URL\" data-id=\"https:\/\/www.theverge.com\/2020\/11\/19\/21575025\/arecibo-observatory-puerto-rico-decommission-structural-collapse-cable-break\">informuje The Verge<\/a>, ob\u0159\u00ed radioteleskop v Arecibu bude rozebr\u00e1n a zlikvidov\u00e1n. V ou\u010dasn\u00e9m stavu je hrozbou pro bezpe\u010dnost a jeho oprava se z\u0159ejm\u011b nevyplat\u00ed. Kdysi \u201enejv\u011bt\u0161\u00ed ant\u00e9na na sv\u011bt\u011b\u201c tedy po v\u00edce ne\u017e pades\u00e1ti letech definitivn\u011b skon\u010d\u00ed. <\/p>\n\n\n\n<p>Nejv\u011bt\u0161\u00ed r\u00e1diovou ant\u00e9nou na sv\u011bt\u011b je od roku 2016 \u010d\u00ednsk\u00e1 FAST (Five-hundred-meter Aperture Spherical Telescope). Radioteleskop v Arecibu byl budov\u00e1n od roku 1960, do provozu byl uveden v roce 1963. V roce 13. \u010dervna 1964 byla ob\u0159\u00ed ant\u00e9na <a href=\"http:\/\/www.ok2kkw.com\/00003016\/sp6kbl\/prednaska\/eme_history2011.pdf\" data-type=\"URL\" data-id=\"http:\/\/www.ok2kkw.com\/00003016\/sp6kbl\/prednaska\/eme_history2011.pdf\">poprv\u00e9 vyu\u017eita k nav\u00e1z\u00e1n\u00ed spojen\u00ed EME<\/a>, pod zna\u010dkou KP4BPZ. Zisk ant\u00e9ny byl neuv\u011b\u0159iteln\u00fdch 49 dBd na dvoumetru a 58 dBd v p\u00e1smu 432 MHz.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jak informuje The Verge, ob\u0159\u00ed radioteleskop v Arecibu bude rozebr\u00e1n a zlikvidov\u00e1n. V ou\u010dasn\u00e9m stavu je hrozbou pro bezpe\u010dnost a jeho oprava se z\u0159ejm\u011b nevyplat\u00ed. Kdysi \u201enejv\u011bt\u0161\u00ed ant\u00e9na na sv\u011bt\u011b\u201c tedy po v\u00edce ne\u017e pades\u00e1ti letech definitivn\u011b skon\u010d\u00ed. Nejv\u011bt\u0161\u00ed r\u00e1diovou ant\u00e9nou na sv\u011bt\u011b je od roku 2016 \u010d\u00ednsk\u00e1 FAST (Five-hundred-meter<span class=\"more-link\"><a href=\"https:\/\/ok5cav.cz\/index.php\/2020\/11\/21\/obri-antena-v-arecibu-se-bude-likvidovat\/\">\u010ct\u011bte d\u00e1le&#8230;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":714,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52,53],"tags":[],"class_list":["entry","author-cavadmin","post-713","post","type-post","status-publish","format-standard","has-post-thumbnail","category-aktuality","category-ze-zahranici"],"_links":{"self":[{"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/posts\/713"}],"collection":[{"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/comments?post=713"}],"version-history":[{"count":2,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/posts\/713\/revisions"}],"predecessor-version":[{"id":717,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/posts\/713\/revisions\/717"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/media\/714"}],"wp:attachment":[{"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/media?parent=713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/categories?post=713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok5cav.cz\/index.php\/wp-json\/wp\/v2\/tags?post=713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}