{"id":92889,"date":"2022-05-07T06:04:35","date_gmt":"2022-05-07T04:04:35","guid":{"rendered":"https:\/\/xm.cz\/blog\/?p=92889"},"modified":"2022-05-04T09:50:53","modified_gmt":"2022-05-04T07:50:53","slug":"jak-funguje-fm-radio-v-mobilu-a-proc-potrebuje-pripojena-sluchatka","status":"publish","type":"post","link":"https:\/\/xm.cz\/blog\/jak-funguje-fm-radio-v-mobilu-a-proc-potrebuje-pripojena-sluchatka\/","title":{"rendered":"Jak funguje FM r\u00e1dio v mobilu a pro\u010d pot\u0159ebuje p\u0159ipojen\u00e1 sluch\u00e1tka?"},"content":{"rendered":"

Chytr\u00e9 telefony jsou skoro a\u017e neuv\u011b\u0159iteln\u00e1 za\u0159\u00edzen\u00ed pln\u00e1 zaj\u00edmav\u00fdch funkc\u00ed, je\u017e leckdy ani nevyu\u017e\u00edv\u00e1me. Jednou z nejm\u00e9n\u011b pou\u017e\u00edvan\u00fdch je p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed v p\u00e1smu velmi kr\u00e1tk\u00fdch vln. Pozitivem je, \u017ee funguje i bez internetov\u00e9ho p\u0159ipojen\u00ed – sta\u010d\u00ed jen p\u0159ipojit sluch\u00e1tka a spustit p\u0159\u00edslu\u0161nou aplikaci. P\u0159em\u00fd\u0161leli jste ale n\u011bkdy nad t\u00edm, jak funguje FM r\u00e1dio v mobilu?<\/b> A pro\u010d k jeho p\u0159\u00edjmu pot\u0159ebujete sluch\u00e1tka s kabelem?<\/p>\n

Telefon v t\u00e9to roli funguje podobn\u011b jako b\u011b\u017en\u00fd p\u0159ij\u00edma\u010d rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed. Umo\u017e\u0148uje tedy lad\u011bn\u00ed stanic a jejich n\u00e1sledn\u00fd poslech, v n\u011bkter\u00fdch p\u0159\u00edpadech i z\u00e1znam do zvukov\u00e9ho souboru. Poj\u010fme se pono\u0159it do v\u011bt\u0161\u00ed hloubky a pod\u00edvat se na funkci FM r\u00e1dia o n\u011bco podrobn\u011bji.<\/p>\n

Jak funguje FM r\u00e1dio v mobilu?<\/h2>\n

Za\u010dn\u011bme od p\u00edky. P\u0159enos energie z jednoho m\u00edsta na druh\u00e9 bez pou\u017eit\u00ed p\u0159\u00edm\u00e9ho kabelov\u00e9ho spojen\u00ed se ozna\u010duje jako r\u00e1diov\u00fd p\u0159enos<\/b>. R\u00e1diov\u00e9 vlny proud\u00ed bezdr\u00e1tov\u011b z jednoho za\u0159\u00edzen\u00ed ozna\u010dovan\u00e9ho jako vys\u00edla\u010d do jin\u00fdch za\u0159\u00edzen\u00ed naz\u00fdvan\u00fdch jako p\u0159ij\u00edma\u010d. Chytr\u00fd telefon je vybaven \u010dipem umo\u017e\u0148uj\u00edc\u00edm p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed.<\/p>\n

Chytr\u00fd telefon prost\u0159ednictv\u00edm tohoto \u010dipu zpracov\u00e1v\u00e1 r\u00e1diov\u00e9 sign\u00e1ly, p\u0159ev\u00e1d\u00ed je a pot\u00e9 pos\u00edl\u00e1 hudbu nebo mluven\u00e9 slovo do kabelov\u00fdch sluch\u00e1tek p\u0159ipojen\u00fdch k za\u0159\u00edzen\u00ed. Samotn\u00e1 implementace \u010dipu do telefonu v\u0161ak k fungov\u00e1n\u00ed nesta\u010d\u00ed, pokud jeho v\u00fdrobce nevy\u0159e\u0161\u00ed technick\u00e9 z\u00e1le\u017eitosti s rozhlasov\u00fdmi stanicemi ve va\u0161\u00ed oblasti.<\/p>\n

FM p\u0159ij\u00edma\u010de jsou v sou\u010dasnosti v telefonech pom\u011brn\u011b roz\u0161\u00ed\u0159en\u00e9, a to p\u0159edev\u0161\u00edm d\u00edky \u010dipov\u00e9 sad\u011b Qualcomm, kterou dnes obsahuje v\u011bt\u0161ina telefon\u016f. V\u00e1\u0161 telefon tedy za p\u0159edpokladu, \u017ee byl vyroben v posledn\u00edch n\u011bkolika letech a m\u00e1 procesor tohoto v\u00fdrobce, by m\u011bl b\u00fdt schopen poskytovat mo\u017enost p\u0159\u00edjmu r\u00e1dia bez datov\u00fdch p\u0159enos\u016f<\/b>.<\/p>\n

Na rozd\u00edl od mobiln\u00edch datov\u00fdch p\u0159enos\u016f tento zp\u016fsob p\u0159\u00edjmu spot\u0159ebov\u00e1v\u00e1 v\u00fdrazn\u011b m\u00e9n\u011b baterie. Samotn\u00fd p\u0159ij\u00edma\u010d v\u0161ak k zachycen\u00ed r\u00e1diov\u00fdch vln nesta\u010d\u00ed. K tomu je pot\u0159eba ant\u00e9na<\/b> – tuto roli zast\u00e1vaj\u00ed dr\u00e1tov\u00e1 sluch\u00e1tka, respektive jejich kabel.<\/p>\n

Pro\u010d pot\u0159ebujete sluch\u00e1tka?<\/h2>\n

Poj\u010fme se pod\u00edvat na podstatu rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed. Na za\u010d\u00e1tku m\u00e1me zvuk – p\u00edse\u0148, mluven\u00e9 slovo, nebo cokoli jin\u00e9ho. Zvuk je n\u00e1sledn\u011b p\u0159em\u011bn\u011bn na elektrickou energii. Ta je pot\u00e9 vedena do vys\u00edla\u010de – tedy velk\u00e9 ant\u00e9ny, je\u017e energii zesiluje a vys\u00edl\u00e1 vzduchem v podob\u011b r\u00e1diov\u00fdch vln.<\/p>\n

Tyto vlny je n\u00e1sledn\u011b mo\u017en\u00e9 zachytit prost\u0159ednictv\u00edm ant\u00e9ny<\/b>. Mobiln\u00ed telefony v\u0161ak nejsou vybaveny ant\u00e9nou pro p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed, proto tuto roli zast\u00e1v\u00e1 kabel sluch\u00e1tek, kter\u00fd sign\u00e1l zachyt\u00ed. Kabel je vyroben z izolovan\u00fdch kovov\u00fdch dr\u00e1t\u016f, na jejich\u017e konci je konektor zapojen\u00fd do telefonu.<\/p>\n

Nejen z tohoto d\u016fvodu nefunguje poslech r\u00e1dia na mobiln\u00edm telefonu s bezdr\u00e1tov\u00fdmi sluch\u00e1tky<\/b>, kter\u00e1 pochopiteln\u011b \u017e\u00e1dn\u00fd kabel nemaj\u00ed. Dal\u0161\u00edm d\u016fvodem je skute\u010dnost, \u017ee cel\u00fd proces p\u0159\u00edjmu rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed prob\u00edh\u00e1 analogov\u011b, tak\u017ee by bylo nutn\u00e9 zvuk p\u0159ed odesl\u00e1n\u00edm do bezdr\u00e1tov\u00fdch sluch\u00e1tek digitalizovat.<\/p>\n

Podporuje v\u00e1\u0161 telefon poslech r\u00e1dia?<\/h2>\n

Nejjednodu\u0161\u0161\u00edm zp\u016fsobem, jak zjistit, zda v\u00e1\u0161 telefon podporuje p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed, je pod\u00edvat se do p\u0159edinstalovan\u00fdch aplikac\u00ed. V\u011bt\u0161ina v\u00fdrobc\u016f na takov\u00e9 mobily instaluje program nazvan\u00fd jednodu\u0161e FM R\u00e1dio<\/b>, respektive R\u00e1dio<\/b>. Pokud takovou aplikaci najdete v z\u00e1kladn\u00ed softwarov\u00e9 v\u00fdbav\u011b, pak je vysoce pravd\u011bpodobn\u00e9, \u017ee v\u00e1\u0161 telefon p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed umo\u017e\u0148uje.<\/p>\n

\"FM<\/a>
FM r\u00e1dio v mobilu<\/figcaption><\/figure>\n

Jestli\u017ee aplikaci FM R\u00e1dio\/R\u00e1dio v telefonu nenajdete, pak je velmi pravd\u011bpodobn\u00e9, \u017ee v\u00e1\u0161 telefon touto funkc\u00ed nedisponuje. To je nap\u0159\u00edklad p\u0159\u00edpad za\u0159\u00edzen\u00ed Apple iPhone, ale i mnoha dal\u0161\u00edch – nej\u010dast\u011bji (ale nejen) s procesory MediaTek. U n\u011bkter\u00fdch telefon\u016f je sice p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed \u010dipem podporov\u00e1n, ale m\u016f\u017ee b\u00fdt v\u00fdrobcem uzamknut. Pak nezb\u00fdv\u00e1 ne\u017e vyhledat, zda je mo\u017en\u00e9 ho odemknout, p\u0159\u00edpadn\u011b jak.<\/p>\n

Jestli\u017ee v\u00e1\u0161 mobil nepodporuje p\u0159\u00edjem rozhlasov\u00e9ho vys\u00edl\u00e1n\u00ed v p\u00e1smu velmi kr\u00e1tk\u00fdch vln, pak prost\u011b m\u00e1te sm\u016flu. Jedn\u00e1 se o hardwarovou funkci, kterou nelze do telefonu doinstalovat ani jinak p\u0159idat<\/b>. V takov\u00e9m p\u0159\u00edpad\u011b je jedin\u00e1 mo\u017en\u00e1 cesta: vyu\u017e\u00edt online vys\u00edl\u00e1n\u00ed p\u0159es internet. To samoz\u0159ejm\u011b bude fungovat jen tam, kde je dostupn\u00e9 dostate\u010dn\u011b kvalitn\u00ed a rychl\u00e9 internetov\u00e9 p\u0159ipojen\u00ed. V takov\u00e9m p\u0159\u00edpad\u011b je nutn\u00e9 po\u010d\u00edtat s nemal\u00fdmi datov\u00fdmi p\u0159enosy, proto je sp\u00ed\u0161e ne\u017e mobiln\u00ed data vhodn\u00e9 vyu\u017e\u00edvat Wi-Fi.<\/p>\n

Vyu\u017e\u00edv\u00e1te na sv\u00e9m telefonu mo\u017enost p\u0159\u00edjmu FM r\u00e1dia?<\/b><\/p>\n

Zdroj: xiaomiui.net<\/a>.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

Chytr\u00e9 telefony jsou skoro a\u017e neuv\u011b\u0159iteln\u00e1 za\u0159\u00edzen\u00ed pln\u00e1 zaj\u00edmav\u00fdch funkc\u00ed, je\u017e leckdy ani nevyu\u017e\u00edv\u00e1me. Jednou z nejm\u00e9n\u011b pou\u017e\u00edvan\u00fdch je p\u0159\u00edjem<\/p>\n","protected":false},"author":3,"featured_media":92892,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[2],"tags":[6601,6600,6602],"class_list":["post-92889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanky","tag-fm-radio","tag-radio","tag-rozhlasove-vysilani"],"wppr_data":{"cwp_meta_box_check":"No"},"yoast_head":"\nJak funguje FM r\u00e1dio v mobilu a pro\u010d pot\u0159ebuje p\u0159ipojen\u00e1 sluch\u00e1tka?<\/title>\n<meta name=\"description\" content=\"P\u0159em\u00fd\u0161leli jste ale n\u011bkdy nad t\u00edm, jak funguje FM r\u00e1dio v mobilu? 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