{"id":1446,"date":"2010-03-18T12:37:58","date_gmt":"2010-03-18T10:37:58","guid":{"rendered":"http:\/\/lukse.lt\/uzrasai\/?p=1446"},"modified":"2010-10-11T17:52:54","modified_gmt":"2010-10-11T15:52:54","slug":"gsm3g-galingumai","status":"publish","type":"post","link":"https:\/\/lukse.lt\/uzrasai\/2010-03-gsm3g-galingumai\/","title":{"rendered":"GSM\/3G galingumai"},"content":{"rendered":"<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-2750\" title=\"hameg\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/hameg.png\" alt=\"\" width=\"200\" height=\"155\" \/>Senai \u017einomas dalykas, jog GSM telefonai labai \u012ftakoja prastesn\u0119 garso aparat\u016br\u0105. Tik prie\u0161 kelias dienas pama\u010diau, jog perjungus telefon\u0105 i 3G re\u017eim\u0105 \u0161i \u012ftaka suma\u017e\u0117ja iki minimumo (tiksliau jos visai nesijau\u010dia). Kadangi darbe po ranka pasitaik\u0117 spektro analizatorius u\u017eme\u010diau ak\u012f kas vyksta eteryje. Eksperimentas atliktas \u012fd\u0117jus telefon\u0105 \u012f radijo bangas sugerent\u012f mai\u0161el\u012f ir pastoviai siun\u010diant duomenis (taip apgaunamas telefonas, ir si\u0173stuvas dirba pilna galia). Triuk\u0161mas ant prastesn\u0117s aparat\u016bros atsidanda ne tik d\u0117l to, jog skiriasi da\u017enis (900MHz ir 1800MHz), bet skiriasi signalo moduliacija bei galia.<\/p>\n<p style=\"text-align: center;\"><!--more--><\/p>\n<ul>\n<li><span style=\"color: #888888;\">900 MHz\u00a0\u00a0 E-GSM-900\u00a0\u00a0 (880-2 &#8211; 914.8 MHz Tx;\u00a0 925.2 &#8211; 959.8 MHz Rx)<\/span><\/li>\n<li><span style=\"color: #888888;\">1800 MHz\u00a0 DCS-1800\u00a0\u00a0\u00a0 (1710.2 &#8211; 1784.8 MHz Tx; 1805.2 &#8211; 1879.8 MHz Rx)<\/span><\/li>\n<\/ul>\n<div id=\"attachment_1454\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00231.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00231.png\" rel=\"lightbox[1446]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1454\" class=\"size-full wp-image-1454\" title=\"SCR0023\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00231.png\" alt=\"SCR0023\" width=\"400\" height=\"300\" \/><\/a><p id=\"caption-attachment-1454\" class=\"wp-caption-text\">GSM suminis spektras<\/p><\/div>\n<div id=\"attachment_1455\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00241.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00241.png\" rel=\"lightbox[1446]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1455\" class=\"size-full wp-image-1455\" title=\"SCR0024\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR00241.png\" alt=\"SCR0024\" width=\"400\" height=\"300\" \/><\/a><p id=\"caption-attachment-1455\" class=\"wp-caption-text\">3G suminis spektras<\/p><\/div>\n<div id=\"attachment_1458\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0013.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0013.png\" rel=\"lightbox[1446]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1458\" class=\"size-full wp-image-1458 \" title=\"SCR0013\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0013.png\" alt=\"SCR0013\" width=\"400\" height=\"300\" \/><\/a><p id=\"caption-attachment-1458\" class=\"wp-caption-text\">GSM pikai<\/p><\/div>\n<div id=\"attachment_1459\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0005.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0005.png\" rel=\"lightbox[1446]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1459\" class=\"size-full wp-image-1459\" title=\"SCR0005\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2010\/03\/SCR0005.png\" alt=\"SCR0005\" width=\"400\" height=\"300\" \/><\/a><p id=\"caption-attachment-1459\" class=\"wp-caption-text\">3G pikai<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Senai \u017einomas dalykas, jog GSM telefonai labai \u012ftakoja prastesn\u0119 garso aparat\u016br\u0105. Tik prie\u0161 kelias dienas pama\u010diau, jog perjungus telefon\u0105 i 3G re\u017eim\u0105 \u0161i \u012ftaka suma\u017e\u0117ja iki minimumo (tiksliau jos visai nesijau\u010dia). Kadangi darbe po ranka pasitaik\u0117 spektro analizatorius u\u017eme\u010diau ak\u012f kas vyksta eteryje. Eksperimentas atliktas \u012fd\u0117jus telefon\u0105 \u012f radijo bangas sugerent\u012f mai\u0161el\u012f ir pastoviai siun\u010diant [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_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},"jetpack_post_was_ever_published":false},"categories":[5],"tags":[],"class_list":["post-1446","post","type-post","status-publish","format-standard","hentry","category-uzrasai"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2rU5c-nk","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/1446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/comments?post=1446"}],"version-history":[{"count":12,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/1446\/revisions"}],"predecessor-version":[{"id":3045,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/1446\/revisions\/3045"}],"wp:attachment":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/media?parent=1446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/categories?post=1446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/tags?post=1446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}