De kwaba yiminyaka embalwa edluleyo, amakhaya amaninzi aye anengxaki eqhelekileyo xa ebukele umabonwakude: mhlawumbi umqondiso wawuphuma okanye umfanekiso nesandi savela ngokuphazanyiswa. Ngubani ongazange wenzeke kuye? Ukuba ukwiminyaka ethile, ngokuqinisekileyo uyakhumbula ukuba wawukhe wayiphila. Kuyinkathazo xa ufika ekhaya ulindele ukucula kumdlalo owuthandayo, okanye umdlalo webhola ekhatywayo ekudala ulindelwe okanye umdlalo wokuqala kwaye, xa ungawulindelanga, kungekho mqondiso! Sala kakuhle kwizicwangciso zakho zeseshini kamabonakude ephumlileyo. I I-eriyali ye-DTT yangaphakathi ize kubonelela ngesisombululo kwezi ngxaki. Andazi ukuba imalunga nantoni? Sikubonisa yona.
Ukungabikho komqondiso kuya kuba yinto yexesha elidlulileyo nokuba unomabonwakude omdala okanye i-Smart TV. Ezi eriyali ziluncedo kakhulu xa umqondiso unesiphene okanye ungafikeleli, into eqhelekileyo kwiindawo ezikude zesixeko.
Yintoni i-eriyali ye-DTT yangaphakathi
Sisixhobo sedijithali sobuchwepheshe bale mihla esivumelayo bamba ngcono umqondiso wemifanekiso kunye nezandi. Ngokuqhelekileyo kulula ukuzifaka kunye nokuqwalasela. ezi eriyali qhagamshela ngqo kumabonakude, zenziwe ngobuhle kwaye, ukuba kukho iingxaki zomqondiso, zilungelelaniswa ngokulula.
Uninzi lwezi eriyali zangaphakathi zine uhambo olungaphantsi kwe-50 km, ngoko ke phambi kokuba uyifake kufuneka ukhangele ukuba kukho ukuhambelana. ubunzulu be isignali yayo ayisoloko ilungile ukuba ifakwe ngaphakathi kwigumbi elinemiqobo emininzi, eyenza ukuphazamiseka.
Kubalulekile ukuba i-antenna ibe semgangathweni kwaye, ukuze ibe nokwamkelwa kakuhle, kufuneka ibekwe kufuphi nefestile. Ukuba ubona ukuba i-eriyali yakho yangaphakathi inobunzima bokufumana isignali ye-DTT (i-Digital Terrestrial Television), kubhetele ukuba uyibuyisele endaweni yayo nge-eriyali yangaphandle.
Sebenzisa enye I-eriyali ye-DTT yangaphakathi ukuba uhlala kwenye kwindawo ecacileyo okanye kwisixeko esikhulu, kwaye uyibeke kufuphi nefestile. Ngamanye amaxesha xa kungekho mgca othe ngqo kwisikhululo se-DTT, i-eriyali kufuneka ikwazi ukudlulisela kwi-decoder ubuncinane i-23 dB ye-C/N (Carrier to Noise) isignali. Ulwamkelo lwe-eriyali luya kuba ngcono ngakumbi xa lunokuqina ngakumbi.
Yenzelwe ntoni i-eriyali ye-DTT yangaphakathi?
Olona setyenziso luphambili lolu hlobo lwe-eriyali kukuba ungonwabela umabonakude wakho ngaphandle kokukhwela phezu kophahla lwendlu yakho ukuya. beka i-eriyali ye-DTT. Ukuba awubekanga sokethi ye-eriyali kuyo nayiphi na indawo endlwini yakho, akusayi kufuneka ukuba ufakele intambo ye-coaxial apho umabonakude ukhoyo, kodwa bhenela kwi I-eriyali ye-DTT yangaphakathi.
Ukusebenzisa le-eriyali kuqoqosho kwaye, ukongeza, ibonelela ngesitayela esihle kunye nenhle, ukuphepha ukubonisa intambo ewela indlu. I ii-eriyali zangaphakathi azinasiphoso, kuxhomekeke kwi Inika amandla angakanani kunye nomgangatho wophawu?. Kuya kuba yimfuneko ukuba ibe nobuncinci ubuncinci besignali kunye namandla ayimfuneko ukwenzela ukuba isixhobo sinokuyibamba.
Kule nto, kuya kufuneka ukuyikhulula ekuphazamiseni, njengezinto ezithintelayo; iindonga, iishelufu, njl. Xa i umqondiso umbi Los Imijelo inokuba pixelated.
Ezi eriyali kufuneka zisetyenziswe kwiindawo apho umqondiso ungaphazanyiswa kukuphazamiseka. Ukuba uhlala kwisakhiwo esijikelezwe ezinye izakhiwo, umntu ohlala kumgangatho ophantsi uya kuba nobunzima obuninzi kunye nomqondiso kunomntu okwi-attic, kuba kwindawo yokugqibela baya kukhululeka ukufumana umqondiso kwaye kuya kuba yinto efanelekileyo. indawo ukuya bona i-DTT.
Isebenza njani i-eriyali ye-DTT yangaphakathi
Le eriyali inomgaqo wokusebenza, guqula imiqondiso yombane ibe ngamaza e-electromagnetic and vice versa. Isekelwe kumthetho kaFaraday wokufakelwa kwe-electromagnetic. Xa i-electromagnetic wave ifikelela kwi-eriyali ye-DTT, umsinga wombane uveliswa kuyo.
Ithe yangoku ibaleka kwi-eriyali, ivelisa intsimi ye-electromagnetic esasazwa njengamaza kuyo yonke indawo. Ngokufanayo, xa i-eriyali ifumana i-electromagnetic wave, i-oscillation yayo ivelisa umsinga wombane kwi-eriyali, evumela ukuba isignali iqhutywe kwaye ibhalwe.
Xa i-eriyali ifumana isignali yeTV, iyalungiswa kwaye yandisiwe ukuze kubekho umgangatho ongcono kunye namandla. Uqhagamshelo olusuka kwi-eriyali ukuya kumabonwakude lwenziwa kusetyenziswa intambo ye-coaxial kwigalelo likamabonwakude. Xa uqhagamshelwe i-eriyali, kufuneka uqale ukuthungela amajelo, uwakhangele, kwaye uwagcine.
Ukwenza oku kokugqibela, kufuneka uye kwimenyu yezicwangciso zeTV kwaye ukhethe naluphi na olu khetho: "Auto Tuning"Okanye"Uphendlo lweSitishi”. Ngoku, ukucofa amajelo qhubeka nokusebenzisa la manyathelo:
- Khangela ukuba i-eriyali iqhagamshelwe kakuhle kwi-TV yakho.
- Layita umabonakude kwaye usebenzise isilawuli kude fikelela kwimenyu yoqwalaselo.
- Khangela nayiphi na kwezi zimbini iinketho: “Ukulungisa"Okanye"uqwalaselo lwetshaneli".
- Kuya kuxhomekeka kwimodeli onayo kamabonwakude, uya kukhetha ukulungiswa okuzenzekelayo o ngezandla. Eyokuqala, iya kukhangela ngokuzenzekelayo kwaye igcine onke amajelo. Kwimeko ye-manual, amajelo aya kukhangelwa nganye nganye.
Wakuba ukhethe amajelo, ungawagcina kwimemori yeTV ukuze ufikeleleke lula.
Eyona DTT ieriyali zangaphakathi
Ezi eriyali azibizi kwaye azinazinto ezikuxelela ukuba enye inketho ingcono kunolunye. Nazi ezinye iinketho.
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Enye yazo Zonke i-eriyali ye-TV eyandisiweyo yi-eriyali yanamhlanje ye-4K Ultra HD yolwamkelo lwedijithali lweTV. Inesihluzo esikhethekileyo sokuthintela i-3G / 4G, ukwenzela ukuba ingaphazamisi isignali yeselula. Uyilo olutsha, ulwamkelo olusuka kwi-0 ukuya kwi-25 km.
Ngoku uyazi yonke into oyifunayo kwi-Intanethi I-eriyali ye-DTT yangaphakathi ke, ukuba uza kufumana enye, unokwenza esona sigqibo silungileyo.