Digital TV umfumani
Nigeria DVB-T2
| uhlobo | DVB-T / T2 H.265 | DVB-T / T2 H.264 | DVB-T | ISDB-T |
| 4 Sombhalo 4 Uthi | DVB-T26540 | DVB-T240 | / | ISDB-T7800 |
| 2 Sombhalo 2 Uthi | DVB-T265 | DVB-T221 | DVB-T7200 | ISDB-T9820 |
| 1 Sombhalo 1 Uthi | / | DVB-T2K | DVB-T7000 | ISDB-T63 |
It is a deal enkulu. Okukhulu kunokuba Ucinga xa uhlola iziphumo. Mhlawumbi, mhlawu ngephutha, ukuba akahlawulwa elininzi ingqalelo, yokufudukela lwedijithali utshintsho ukusuka analogu TV ukuya usasazo lwedijithali TV ezisentlabathini, apho amazwe ehlabathini lonke kulindeleke ukuba bathathe. Kwenzeka njani?
Digital yemfuduko ibandakanya ukudluliselwa umqondiso umabonakude wedijithali phezu komhlaba ukusuka imasti ukuba balwamkele ekhaya.
Xa DSO kwenzeka, umbukeli TV kuya kufuneka ukuba ube iseti-top-ibhokisi (NJL) okanye usebenzise i TV yedijithali ukuze ufumane iinkonzo kumabonakude. A Box Set-Top into udla ngokubizwa ngokuba idikhowuda. Xa ukufumana Set Top Box ukuba iyahambelana DVB-T2, isizukulwana yesibini broadcast technology (Togu usebenzisa DVB-T okanye T-1 iintlobo), kunye okanye ngaphandle umrhumo wenyanga okanye umabonakude wedijithali, umbukeli umabonakude uya kukwazi ukufumana umqondiso xa DSO kuthatha indawo, kulandela analogu yicime. Oku kuthetha ukuba oyibonayo uya kukwazi ukubukela analogu umabonwakude ukuba / eye alikafiki bafudukele.
Ukuba ufuna ukuqhubeka ubukele iTV xa DSO kuthatha indawo, kuya kufuneka ukuthenga Free-to-Air STB / idikhowuda (ngexesha elinye-ukuthenga yaye akukho umrhumo wenyanga), i iseti Integrated Digital Television okanye pay-TV STB / idikhowuda (oku kuza nokubhaliswa ngenyanga).
DVB (Digital Video Broadcasting) na umgangatho umabonakude wedijithali ukuba iye yamkelwa kumazwe ezininzi Region ITU 1, apho Afrika uwela.
DVB-T, emele Digital Video Broadcasting neeNdawo, lolusezantsi DVB yokuqala yileyo indawo DVB-T2.
DVB-T2 ufuzisela Digital Video Broadcasting (Generation Second neeNdawo), inkqubo entsha enika inzuzo ngomsebenzi ogqwesileyo zobugcisa kunye nokusebenza aphezulu. DVB-T2 ayihambelani ngasemva DVB-T. Njenge, DVB-T balwamkele awukwazi ukufumana imiyalezo DVB-T2, kwaye akukho itoti DVB-T2 kufumana Imiqondiso DVB-T.
Oku kuthetha ukuba abemi kumazwe apho yokufudukela kuthiwa efikelelweyo yi-Juni 2015 umhla wokugqibela, kodwa kwiteknoloji T-1 kuya kufuneka ukuba bathenge balwamkele DVB-T2 oluxhasa umgangatho DVB-T2.
Ukukhetha uphawu kusasazo yedijithali, umntu kufuneka abe TV yedijithali. Digital TV, lowo TV Lowo Sombhalo wedijithali inbuilt. Ke ukuba ubani usenalo TV analogu, omnye kuya kufuneka ukuba ufumane i-digital in uhlobo kwibhokisi iseti-top, oguqula imiyalezo evela umabonakude wedijithali kwifomu apho ingakhangelwa kwi zemveli isethi analogu kamabonakude.
Ngaba oku kuthetha ngoku kufuneka ukuba ahlawule ukubukela amajelo siye abafumana simahla phantsi yosasazo ezisentlabathini?
Kukho iindidi ezimbini iipakethe inkonzo yosasazo eqongeni ukuzivala: i.e. Free-to-moya and Pay TV.
Imiphantsi Free-to-Air abo bafumana ngaphandle kokuba sibhalise okanye ahlawule intlawulo yenyanga ukufumana. Ezi ndlela ziza kuqhubeka free nasemva kokuba ukufuduka ukusuka analogu usasazo lwedijithali.
Pay-TV ifuna ukuba ubhalise uze ubhatale imali yobulungu ukubukela amajelo ezinxulumene ezifana DStv okanye GOtv.
In yosasazo analogu, uphawu usasazwa ugqithiselwa zibe ngumtshangatshangiso okuqhubekayo, ngelixa transmission yedijithali iquka ukudluliselwa umqondiso zibe ngumtshangatshangiso ekhethekileyo. Ukuze TV yedijithali, uphawu ufakwe kwaye zixinaniswe ukuvumela amajelo amaninzi kusasazwa. Digital yokufudukela inika uluhlu olubanzana nezahlulo ngaphezu analogu.
Ngesizathu, ithi iqinisekise umgangatho engcono ezibonwayo kwaye inike iinkonzo ezininzi ezifana radio, teletext, iinkonzo interactive, imidlalo, nokuxhasa ukuba abangaboniyo kakuhle kwaye intanethi.
Ukwengeza, ivumela iziseko-ukwabelana ngokusebenzisa iimasti ngomzi uphawu kwaye inika amathuba angcono kwimveliso umxholo wendawo, uya Bavelisa amathuba emisebenzi ngenxa kwabayili umxholo. Ngalo ndlela, kwenza akukho umlinganiselo omncinane kwimpilo-ntle kwezoqoqosho kumazwe afuduka.
imithombo evela:http://allafrica.com/stories/201508032065.html
VCAN ukwazi ukunikela imveliso Romania DVB-T2 ngezantsi:
