[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.feso.cz\/jak-vlastne-funguje-mobilni-telefon\/#Article","mainEntityOfPage":"https:\/\/www.feso.cz\/jak-vlastne-funguje-mobilni-telefon\/","headline":"Jak vlastn\u011b funguje mobiln\u00ed telefon?","name":"Jak vlastn\u011b funguje mobiln\u00ed telefon?","description":"Vyn\u00e1lez telefonu pat\u0159\u00ed bezesporu k\u00a0jedn\u011bm z\u00a0velk\u00fdch miln\u00edk\u016f lidstva. D\u00edky n\u011bmu spolu lid\u00e9 mohou bez pot\u00ed\u017e\u00ed mluvit i na dlouh\u00e9 vzd\u00e1lenosti, a na rozd\u00edl od tehdej\u0161\u00edch","datePublished":"2022-08-03","dateModified":"2023-06-05","author":{"@type":"Person","@id":"https:\/\/www.feso.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.feso.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4b051168bd2ace843d503d3432ebc4a96ac13303845197b3f2a2634cb21029f6?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4b051168bd2ace843d503d3432ebc4a96ac13303845197b3f2a2634cb21029f6?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"feso.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.feso.cz\/wp-content\/uploads\/fitness4_5.jpg","url":"https:\/\/www.feso.cz\/wp-content\/uploads\/fitness4_5.jpg","height":0,"width":0},"url":"https:\/\/www.feso.cz\/jak-vlastne-funguje-mobilni-telefon\/","about":["Mobil"],"wordCount":425,"articleBody":"Vyn\u00e1lez telefonu pat\u0159\u00ed bezesporu k\u00a0jedn\u011bm z\u00a0velk\u00fdch miln\u00edk\u016f lidstva. D\u00edky n\u011bmu spolu lid\u00e9 mohou bez pot\u00ed\u017e\u00ed mluvit i na dlouh\u00e9 vzd\u00e1lenosti, a na rozd\u00edl od tehdej\u0161\u00edch telegraf\u016f k\u00a0tomu nepot\u0159ebuj\u00ed zn\u00e1t Morseovu abecedu.\u00a0I zde v\u0161ak spojen\u00ed dlouhou dobu prob\u00edhalo po dr\u00e1t\u011b. Na\u0161e slova byla p\u0159em\u011bn\u011bna v\u00a0elektrick\u00e9 sign\u00e1ly, kter\u00e9 byly p\u0159eneseny p\u0159es kabely a\u017e k\u00a0p\u0159\u00edjemci. Doba v\u0161ak pokro\u010dila a klasick\u00e9 telefony dnes ji\u017e nikdo nepou\u017e\u00edv\u00e1. Prakticky v\u0161ude je nahradily mobily, kter\u00e9 je mo\u017en\u00e9 vz\u00edt kamkoliv sebou, a kter\u00e9 nav\u00edc maj\u00ed i mnohem v\u00edce funkc\u00ed.\u00a0Ov\u0161em zat\u00edmco p\u0159enos sign\u00e1lu p\u0159es kabel je snadno pochopiteln\u00fd i pro laika, v\u011bt\u0161ina lid\u00ed p\u0159\u00edli\u0161 nech\u00e1pe, jak vlastn\u011b prob\u00edh\u00e1 bezdr\u00e1tov\u00e1 komunikace. V\u011bt\u0161inou v\u00ed, \u017ee to m\u00e1 cosi spole\u010dn\u00e9ho se sign\u00e1ln\u00edmi v\u011b\u017eemi a satelity, detaily jsou v\u0161ak pro n\u011b ztraceny.\u00a0\u00a0Je pravdou, \u017ee cel\u00fd proces je pon\u011bkud slo\u017eit\u011bj\u0161\u00ed, ne\u017e tomu bylo d\u0159\u00edv. Zjednodu\u0161en\u011b \u0159e\u010deno, telefonn\u00ed v\u011b\u017ee vys\u00edlaj\u00ed sign\u00e1l o ur\u010dit\u00e9 frekvenci, kter\u00e1 je n\u00e1sledn\u011b zachycena mobilem. Zde je nutn\u00e9 podotknout, \u017ee ka\u017ed\u00fd oper\u00e1tor m\u00e1 vlastn\u00ed v\u011b\u017ee a tak\u00e9 vlastn\u00ed frekvenci sign\u00e1lu.\u00a0Tento samoz\u0159ejm\u011b m\u016f\u017ee b\u00fdt blokov\u00e1n, nap\u0159\u00edklad okoln\u00edm ter\u00e9nem, jako jsou vysok\u00e9 kopce \u010di dokonce hory, nebo i lidsk\u00fdmi stavbami. I rozm\u00edst\u011bn\u00ed v\u011b\u017e\u00ed u jednotliv\u00fdch oper\u00e1tor\u016f se li\u0161\u00ed. To je tak\u00e9 d\u016fvod, pro\u010d na n\u011bkter\u00fdch m\u00edstech nen\u00ed sign\u00e1l a pro\u010d se pokryt\u00ed r\u016fzn\u00fdch poskytovatel\u016f li\u0161\u00ed.\u00a0\u00a0Pokud vol\u00e1me, vy\u0161leme sign\u00e1l z\u00a0na\u0161eho p\u0159\u00edstroje. Ten zachyt\u00ed ona telefonn\u00ed v\u011b\u017e, kter\u00e1 jej n\u00e1sledn\u011b ode\u0161le do p\u0159\u00edslu\u0161n\u00e9ho satelitu. Ten vyhled\u00e1 telefon, kter\u00fd kontaktujeme, a vy\u0161le povel nejbli\u017e\u0161\u00ed v\u011b\u017ei. Ta vy\u0161le sign\u00e1l do dan\u00e9ho p\u0159\u00edstroje, \u010d\u00edm\u017e se vytvo\u0159\u00ed propojen\u00ed mezi dv\u011bma telefony.\u00a0Cel\u00fd tento proces m\u016f\u017ee zn\u00edt pon\u011bkud slo\u017eit\u011b, av\u0161ak vzhledem k\u00a0rychlosti, jakou sign\u00e1l cestuje, v\u0161e trv\u00e1 jen n\u011bkolik vte\u0159in. Nav\u00edc je tento proces pom\u011brn\u011b spolehliv\u00fd, nebo\u0165 nehroz\u00ed, \u017ee se n\u011bkde nap\u0159\u00edklad poru\u0161\u00ed kabel.\u00a0D\u00edky tomu se pak m\u016f\u017eeme okam\u017eit\u011b spojit s\u00a0k\u00fdmkoliv na cel\u00e9m sv\u011bt\u011b. A to je rozhodn\u011b v\u00fdhodn\u00e9.                                                                                                                                                                                                                                                                                                                                                                                        3.9\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak vlastn\u011b funguje mobiln\u00ed telefon?","item":"https:\/\/www.feso.cz\/jak-vlastne-funguje-mobilni-telefon\/#breadcrumbitem"}]}]