{"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\/ro\/satellite_television\/","title":{"rendered":"Televiziune prin satelit"},"content":{"rendered":"
\n

Ast\u0103zi, consider\u0103m ca fiind ceva firesc faptul c\u0103 putem urm\u0103ri \u00een direct la televizor evenimente precum Cupa Mondial\u0103 sau Jocurile Olimpice. Aceste imagini au ajuns adesea pe ecranul dumneavoastr\u0103 de la cel\u0103lalt cap\u0103t al lumii.<\/p>\n<\/div>\n

Ceea ce face acest lucru posibil este un inel de sateli\u021bi de comunica\u021bii afla\u021bi pe orbita geosta\u021bionar\u0103. Trec\u00e2nd la o altitudine de aproximativ 36.000 km deasupra ecuatorului, ace\u0219ti sateli\u021bi par s\u0103 pluteasc\u0103 deasupra aceleia\u0219i p\u0103r\u021bi a suprafe\u021bei P\u0103m\u00e2ntului. Ei recep\u021bioneaz\u0103 semnale TV de la antenele parabolice de la sol \u0219i apoi le amplific\u0103. Apoi, satelitul retransmite imaginile \u0219i sunetul c\u0103tre telespectatori.<\/p>\n

Era modern\u0103 a televiziunii prin satelit a \u00eenceput \u00een iulie 1962, c\u00e2nd Telstar 1 a transmis primele programe TV \u00een direct din Statele Unite c\u0103tre Marea Britanie. Apoi, \u00een 1965, Early Bird a devenit primul satelit utilizat pentru transmisii TV regulate \u00eentre America de Nord \u0219i Europa.<\/p>\n

\u00cen trecut, semnalele TV trebuiau transmise c\u0103tre antene parabolice de mari dimensiuni amplasate la sta\u021bii terestre speciale, \u00eenainte de a fi difuzate c\u0103tre antenele locale. Ast\u0103zi, semnalele satelitare sunt at\u00e2t de puternice \u00eenc\u00e2t pot fi recep\u021bionate de antene parabolice mici, amplasate pe acoperi\u0219urile birourilor \u0219i locuin\u021belor. Aceast\u0103 televiziune digital\u0103 cu recep\u021bie direct\u0103 la domiciliu a devenit foarte popular\u0103 \u00een multe \u021b\u0103ri.<\/p>\n

De asemenea, se pot stabili leg\u0103turi live prin satelit \u00eentre birouri aflate la distan\u021b\u0103 sau \u00eentre medicii din spitalele urbane \u0219i pacien\u021bii din satele izolate de la \u021bar\u0103. Sateli\u021bii sunt folosi\u021bi \u0219i pentru transmisiile radio digitale, care pot fi recep\u021bionate de ma\u0219ini \u0219i de aparate radio portabile.<\/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\/ro\/wp-json\/wp\/v2\/posts\/803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=803"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/803\/revisions"}],"predecessor-version":[{"id":1946,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/803\/revisions\/1946"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=803"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=803"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=803"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=803"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=803"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=803"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=803"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}