{"id":803,"date":"2011-07-05T08:28:00","date_gmt":"2011-07-05T06:28:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellite_television\/"},"modified":"2026-10-08T00:32:26","modified_gmt":"2026-10-07T22:32:26","slug":"satellite_television","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/satellite_television\/","title":{"rendered":"Satellit-tv"},"content":{"rendered":"
\n

I dag tager vi det for givet, at vi kan se live-tv-billeder fra begivenheder som VM eller De Olympiske Lege. Disse billeder er ofte kommet til din sk\u00e6rm fra den anden side af verden.<\/p>\n<\/div>\n

Det, der g\u00f8r dette muligt, er en kreds af kommunikationssatellitter i geostation\u00e6r bane. Disse satellitter, der kredser ca. 36.000 km over \u00e6kvator, ser ud til at sv\u00e6ve over den samme del af Jordens overflade. De modtager tv-signaler fra paraboler p\u00e5 jorden og forst\u00e6rker dem derefter. Derefter sender satellitten billederne og lyden videre tilbage til seerne.<\/p>\n

Den moderne \u00e6ra inden for satellit-tv begyndte i juli 1962, da Telstar 1 sendte de f\u00f8rste direkte tv-programmer fra USA til Storbritannien. I 1965 blev Early Bird den f\u00f8rste satellit, der blev brugt til regelm\u00e6ssige tv-udsendelser mellem Nordamerika og Europa.<\/p>\n

Tidligere skulle tv-signaler sendes til store parabolantenner p\u00e5 s\u00e6rlige jordstationer, f\u00f8r de blev udsendt til lokale antenner. I dag er satellitsignalerne s\u00e5 kraftige, at de kan modtages af sm\u00e5 paraboler p\u00e5 tagene af kontorer og huse. Dette digitale tv, der sendes direkte til hjemmet, er blevet meget popul\u00e6rt i mange lande.<\/p>\n

Der kan ogs\u00e5 oprettes direkte satellitforbindelser mellem fjerntliggende kontorer eller mellem l\u00e6ger p\u00e5 byhospitaler og patienter i afsidesliggende landsbyer. Satellitter bruges desuden til digitale radioudsendelser, som kan modtages i biler og p\u00e5 b\u00e6rbare radioer.<\/p>","protected":false},"excerpt":{"rendered":"

Today, we take it for granted that we can see live TV pictures of events such as the World Cup or the Olympic Games. These pictures have often travelled to […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2008\/11\/satellite_control_software_expertise_simplifies_digital_tv_channel_broadcasting2\/17878107-2-eng-GB\/Satellite_control_software_expertise_simplifies_digital_TV_channel_broadcasting.jpg","esa_banner_description":"","esa_banner_credit":"AFP","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/11\/Satellite_control_software_expertise_simplifies_digital_TV_channel_broadcasting2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,65,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-803","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=803"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/803\/revisions"}],"predecessor-version":[{"id":1946,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/803\/revisions\/1946"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=803"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=803"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=803"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=803"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=803"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=803"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=803"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}