Iziteshi zedijithali azisekho: kungani ithelevishini yedijithali ingabonisi nokuthi yini okufanele uyenze uma ingekho isignali

Ifomethi yethelevishini yedijithali isho isithombe esingcono nomsindo, kodwa empeleni, abasebenzisi bavame ukubhekana nenani lezinkinga, enye yazo okuwukuphazanyiswa kwesignali yedijithali. Kungani iziteshi zedijithali zinyamalala, nokuthi yini okufanele uyenze uma
ithelevishini yedijithali ingabonisi .

Umgomo wokuthola iziteshi ze-TV ezidijithali

Naphezu kokuthi ithelevishini yedijithali ikhona muva nje, ithola ukuthandwa kakhulu, njengoba umsebenzisi ethola izithombe eziphezulu nomsindo. Futhi, ama-pluses ahlanganisa iqiniso lokuthi kungenzeka ukuxhuma izinhlelo ezengeziwe, imisebenzi kanye nokusebenzisa i-TV ehlangene.
Isimiso sokusebenza kobuchwepheshe silula – isignali yomsindo nevidiyo ekhodiwe ingena ku-TV ngezinti emfudlaneni okhethekile, futhi isivele isuswe ukubethela ku-TV ngokwayo, futhi umsebenzisi uthola isithombe sekhwalithi ephezulu. Ukwamukela ukusakazwa kwedijithali kwenziwa ngezindlela eziningana:

• ukusakaza – isithombe sitholwa ngemibhoshongo ephindaphindayo;
• i -satellite – ungabuka iziteshi eziningi, kodwa udinga isidlo esikhethekile;
• ikhebula – elisetshenziswa ezakhiweni zamafulethi, isignali idluliselwa nge-antenna ehlangene.

Izizathu zokuthi kungani iziteshi zinyamalale kumabonakude wedijithali

Kunezimo lapho iziteshi ku-TV zinyamalala kungazelelwe noma ngemva kokuvula i-TV – eyodwa, eziningana noma zonke ngesikhathi esisodwa. Kunezizathu eziningi zokuthi kungani lokhu kungase kube njalo.

I-TV ayizitholi zonke iziteshi zedijithali

Kungani zonke iziteshi zedijithali zishabalala:

1. Isiginali evela kumbhoshongo we-TV ayilungile emishinini ekhethiwe , yingakho i-TV ingakutholi ukwamukelwa.
2. Kukhethwe uthi olungalungile . Khetha uthi olususelwe ezimeni zebanga ukusuka kumbhoshongo we-TV. Uma ibanga lingu-3-7 km, ungashiya elingaphakathi, ngaphandle kwalokho, thola i-antenna yangaphandle enamandla ene-amplifier enhle.
3. Ukuxhuma i-digital set-top box ku-TV yedijithali . Ndawonye, ​​lesi sisetshenziswa asisebenzi ngokwanele, amadivayisi ahlala eqalisa kabusha, futhi izilungiselelo ziyalahleka.
4. Oxhumana nabo ku- amplifier bafakwe i-oxidized . Ithinta izinti zasemgwaqweni eziningi, ikakhulukazi uma impilo yazo yesevisi iyinde ngokwanele. Ama-amplifiers amanye ama-antenna yibhokisi lepulasitiki elilula lapho amanzi engena khona ngokukhululeka, okubangela i-oxidation. Izimo ezinjalo kufanele zigwenywe.
5. Imvamisa eyisisekelo ekhethwe ngokungalungile yokwamukela isignali . Ingqikithi yenqubo ukuthola isidlulisi sokusakaza esiseduze nendlu, okukuvumela ukuthi uthole isignali enamandla. Ngakho-ke, qiniseka ukuthi imvamisa yokwamukela isignali ifaneleka kakhulu endaweni yangakini.
6. Ukuba khona kokuphazanyiswa kwe-GSM ne-LTE . Manje kunemibhoshongo yocingo eminingi kunemibhoshongo ye-TV, ngakho ingaphazamisa isignali. Ungakulungisa lokhu ngokuthenga isihlungi esikhethekile esivikela kumasiginali we-GSM ne-LTE. Ixhunywe njengomxhumanisi phakathi kwesixhumi se-antenna ne-TV.
7. Ukuntuleka kokusekelwa kwe-DVB-2 . Uma i-TV noma i-set-top box ingasekeli leli zinga, i-multiplex yesibili yamashaneli ngeke ibonakale – ngeke uwathole.
8. Izikhathi eziningi izinkinga zihambisana nezimo zezulu . Ngemimoya enamandla noma ukuduma kwezulu, isignali iyancipha kakhulu, ngenxa yokuthi isignali yethelevishini yedijithali iyanyamalala futhi iziteshi ziyalahleka. Ngokuvamile, ngemva kokujwayelekile kwezimo zezulu, konke kubuyela kokujwayelekile.
9. Indawo yokwamukela itholakala esigodini futhi isignali indiza phezu kothi . Ungalungisa lesi simo ngokuhambisa uthi ophahleni lwendlu noma ululungise ku-mast ehlukile.

Isiginali yethelevishini yedijithali iyanyamalala, yiziphi izizathu nokuthi yini okufanele uyenze: https://youtu.be/lTEupuNxpJA

Ayikwazi ukukhetha iziteshi eziningi

Cabangela izimo ezivame kakhulu lapho iziteshi ezisebhokisini le-digital set-top zinyamalala kancane kuphela:

1. Umbhalo omayelana nombhalo wekhodi wesiteshi se-DRE uvela kusikrini se-TV . Lokhu kwenzeka uma i-set-top box ivaliwe isikhathi eside – idivayisi idinga ukusebenza ngemodi evamile amahora ambalwa ukuze ukuvumelanisa kwenzeke, ngemva kwalokho zonke iziteshi zibuyiselwa.
2. Umlayezo mayelana nokuba khona kwesiteshi esikhokhelwayo uvele esikrinini . Uma ngempela unazo iziteshi ezikhokhelwayo, nwebisa umsebenzi ngokukhokha. Uma isaziso esinjalo sivela eziteshini zamahhala, xhumana nomhlinzeki wakho.
3. Isofthiwe ayihambisani nesamukeli se-GS-HD . Ungakulungisa lokhu ngokuya kumenyu futhi uvule ukhiye wokubuyisela uhlu lwesiteshi.
4. Umamukeli akabhalisiwe . Kunenombolo kamazisi ngemuva kwedivayisi. Usebenzisa ikhompuyutha, iya kuwebhusayithi ye- Tricolor TV , bese ufaka idatha etholwe kumhlinzeki ukuze ubhalise.

Yini okufanele uyenze uma iziteshi ku-TV zingasekho?

Uma amashaneli edijithali engekho, ungazama ukuwashuna ngokwenza noma usebenzise ukushuna okuzenzakalelayo. Funda i-algorithm evamile yezenzo, ngoba kungakhathaliseki ukuthi iyiphi imodeli ye-TV yakho, isimiso sokusetha siyefana. Into esemqoka ukufunda ngokucophelela lokho okubhalwe esikrinini.

Ukushuna okuzenzakalelayo kokwamukela isiteshi

I-algorithm evamile yezenzo phakathi nokushuna okuzenzakalelayo:

1. Thatha isilawuli kude, cindezela inkinobho ethi “Imenyu”, khetha “Izinketho” – “Ukushuna ngokuzenzakalela”.
2. Uzobona iwindi elinohlu lwemithombo yesignali – i-antenna noma ikhebula. Khetha “Ikhebula” bese uchofoza “Qala”.
3. Iwindi elinohlu lwemithombo yesignali lizovela esikrinini se-TV. Thola “Digital” bese uchofoza “Qala”.
4. Yiya esigabeni Semodi Yokusesha. Khetha isigatshana esithi “Okugcwele” bese ugcwalisa izinkambu ezidingekayo mathupha ngolwazi olulandelayo:
   • ukuguquguquka – 256 QAM;
   • imvamisa – 314 MHz;
   • izinga lokudlulisa – 6875 kS\s.

Ngemva kokushuna kwimodi ezenzakalelayo, uzoba namashaneli angaba ngu-20 ngokuchazwa okuphezulu. Uma kutholwe okungu-10 kuphela kokungu-20, sebenzisa ukusesha okwenziwa ngesandla.

Ukulungiselelwa mathupha

Ukusethwa mathupha kuqukethe izinto ezilandelayo:

1. Iya kumenyu enkulu.
2. Thola into engaphansi “Ukushuna mathupha”.
3. Faka idatha evela kumhlinzeki endaweni evelayo.
4. Qala ukusesha.
5. Ngemva kokutholwa kwesiteshi ngasinye, chofoza inkinobho “Okulandelayo”.

Kwenzeka ukuthi udinga ukwenza izinguquko ochungechungeni lwedijithali ukuze uthuthukise ikhwalithi yesithombe. Ukushuna mathupha kuthatha isikhathi esiningi kunokushuna okuzenzakalelayo, kodwa uzokwazi ukushuna isiteshi ngasinye.

Izici zezilungiselelo zesiteshi kuye ngemodeli ye-TV

Imodeli ye-TV ngayinye ine-firmware yayo yasembonini kanye nokusebenza komuntu ngamunye. Cabangela indlela yokumisa iziteshi zamamodeli athile.

Iziteshi zedijithali zinyamalale / azibanjwanga ku-Samsung TV – ukuthi ungasetha kanjani

Ukusetha iziteshi zedijithali zamamodeli amaningi e-Samsung, landela lezi zinyathelo:

1. Cindezela inkinobho ethi “Imenyu” kusilawuli kude, ngemva kwalokho imenyu ye-TV izovuleka.
2. Khetha “Isiteshi” – “Izwe” kumenyu.
3. I-TV izokucela i-PIN khodi. Uma ungakaze uyisebenzise ngaphambilini, faka u-0000. Ukuze uthole amapharamitha okusesha adingekayo, qiniseka ukuthi uno “Okunye” kulayini “Izwe”.
4. Setha imenyu “Isiteshi” – “I-Antenna” ipharamitha “Ikhebula”.
5. Vula imenyu ethi “Izinketho Zokusesha Ikhebula” bese usetha:
   • imvamisa yokuqala 298,000 kHz;
   • imvamisa yokuphela 362,000 kHz;
   • izinga lokudlulisa 6 952 Ks/s;
   • Ukushintsha kwe-256 QAM
6. Vula “Ukusethwa ngokuzenzakalela”. Umthombo wesiginali – “Ikhebula”, uhlobo lweziteshi – “Idijithali”.
7. Khetha uhlobo lwesiteshi ngokubona kwakho – kungaba “Idijithali” kuphela noma “Idijithali + i-analogi”.
8. Setha imodi yokusesha kunethiwekhi.
9. Chofoza inkinobho ethi “Sesha”.

Ngemva kokusesha okuzenzakalelayo, uzothola zonke iziteshi zedijithali ezikhona kunethiwekhi yekhebula, kodwa ungabuka kuphela lezo ezifakwe kuphakheji yakho.

Ngezansi umyalo wevidiyo wokusetha iziteshi zedijithali ku-Samsung TV: https://www.youtube.com/watch?v=Uh9YgK5agL0

Ukusetha iziteshi kuma-LG TV

Ukusetha ama-LG TVs kanje:

• cindezela inkinobho ethi “Imenyu” kusilawuli kude;
• khetha “Izinketho” bese uchofoza kumingcele oyifunayo ukuze ushintshe (ngokwesibonelo, engxenyeni ethi “Izwe”, khetha iFinland noma iJalimane);
• hamba entweni ethi “Izilungiselelo” bese ukhetha usesho oluzenzakalelayo, ucacise uxhumano lwekhebula;
• gcwalisa iwindi elivela ngokwemiyalelo onayo.

Ungasebenzisa ukuvuselela okuzenzakalelayo kweziteshi ze-TV, lesi sici sitholakala kwa-LG. Ngenxa yalokho, uhlu lwangaphambilini luzosethwa kabusha futhi iziteshi zizoshunwa ngokulandelana okusha.

Philips

Cabangela izilungiselelo ze-Philips TV:

1. Ngenkinobho yemenyu kusilawuli kude, faka ingxenye ethi “Izilungiselelo”.
2. Chofoza engxenyeni ethi “Ukufaka”.
3. Ngemva kokuvela kwemenyu yesibili, khetha ukuhlela isiteshi.
4. Enye imenyu yesibili izovela. Khetha Izilungiselelo ezizenzakalelayo.
5. Uma izinguquko zenziwe ngendlela efanele futhi ngokungaguquguquki, kuzovela umlayezo othi iziteshi manje zizobuyekezwa.
6. Chofoza “Qala”.

Uhlelo luzibekela iziteshi ngokwalo. Ngemva kokuphothula, awudingi ukwenza noma yini enye. Kunezizathu eziningi zokuthi kungani iziteshi zedijithali ziyeka ukusakaza futhi asikho isignali yethelevishini yedijithali, kodwa cishe zonke zingaxazululwa ngokwakho. Okubalulekile wukunquma ukuthi yini ngempela engahambanga kahle. Azikho izinkinga ngokusetha okulandelayo noma, njengoba zonke izilungiselelo ziyefana, futhi ungathola ulwazi oludingekayo kumhlinzeki noma emiyalweni ye-TV.