DVB S kunye DVB S2 yintoni na kumabonakude kwaye yintoni umahluko phakathi kwabo

Xa umsebenzisi esiva isishunqulelo se-DVB, usenokungasoloko eyazi into ethethwayo. Esi sishunqulelo simele “uSasazo lweVidiyo yeDijithali”. I-DVB S, i-DVB S2, i-DVB T,
i-DVB T2 , i-DVB C idla ngokukhankanywa.Izikhundla ezongezelelweyo zibonisa indlela yokufumana amajelo. I-DVB T kunye ne-DVB T2 zibonelela ngolwamkelo lukamabonakude osemhlabeni. I-DVB C isebenza
nomabonakude wedijithali . Izishunqulelo ze-DVB S kunye ne-DVB S2 zibhekisa
kumabonakude wesathelayithi . Umgangatho we-DVB S2 luguqulelo olutsha noluhambele phambili ngakumbi xa kuthelekiswa ne-DVB S.

Uthini umahluko phakathi kwemigangatho yedvb kunye ne-s2

I-TV nganye iyakwazi ukusebenza ngemigangatho echazwe ngumenzi. Oku kuthetha ukuba ukusuka kumbono wezobugcisa, ngokudibanisa ikhebula ukusuka kumthombo ofanelekileyo ukuya kwisixhumi esifanelekileyo, ummkeli wethelevishini unokubonelela ngokufumana umgangatho ophezulu womthombo wesignali. Ngokwenza umsebenzi, ukufumana ividiyo kuyinkimbinkimbi yinto yokuba umgangatho wesignali engenayo ungabi phezulu ngokwaneleyo. Oku akuyi kukuvumela ukuba ufumane umfanekiso kunye nesandi esihle. Umzekelo, imeko enjalo iyenzeka ukuba ukulungiswa kwesathelayithi kwenziwa kakubi. Enye ingxaki inxulumene noguqulelo oluntsonkothileyo lwetshaneli. Kwezinye iimeko, ukuze ukwazi ukujonga iinkqubo ezithile, kufuneka uzihlawulele kumnikezeli. Iya kukhupha nokuba ngaba umamkeli okwaziyo ukubonelela ngokwamkela kwabo okanye
ikhadi leCAM, eya kuthi ikhuphe uguqulelo oluntsonkothileyo ngokuzenzekelayo ividiyo kwaye iyenze ifumaneke ukuze ijongwe. Ukusetyenziswa kwe-DVB S2 ibonelela abasebenzisi ngezi nzuzo zilandelayo:

1. I-DVB S ngowona mgangatho uqhelekileyo wokubukela umabonakude wesathelayithi. Umgangatho ophezulu wesiboniso wenza ngakumbi nangakumbi kwii-nodes ezibonelela ngokufumana. I-DVB S2 ibonelela ngomgangatho ophezulu wokwamkelwa.
2. Amanye amajelo asasaza kuphela kwi-DVB S2. Ukukwazi ukujonga kuphela DVB S, awukwazi ukufikelela kuzo. Ngaloo ndlela, ukuba umsebenzisi ufuna ukufikelela kumajelo osasazo anamhlanje kunye nomgangatho ophezulu, kuya kufuneka agxininise ekusebenziseni ukhetho olutsha.
3. Isantya sokudlulisa ulwazi siphezulu ngama-30%.
4. Ukusebenzisa i-DVB S2 umsebenzisi ufumana ukufikelela kumajelo amaninzi e-HD.

Ukusebenzisa umgangatho omtsha kunoqoqosho ngakumbi ngokweendleko zamandla.

Yintoni i DVB S2 tuner ekwaziyo?

I-DVB S2 tuner inomgangatho ophezulu womsebenzi. Inokubonelela umnini ngezi ncedo zilandelayo:

1. Ingakuxhasa ngokulula ukujonga kumgangatho weDVB S2 kunye nomabonwakude wesiqhelo.
2. Umgangatho ekuthethwa ngawo, ngokungafaniyo ne-DVB S, iindlela ezimbini. Ayikuvumeli kuphela ukuba ufumane ulwazi oluvela kwisathelayithi, kodwa kwakhona uyidlulisele kwelinye icala. Oku kukuvumela ukuba uyisebenzise ukufumana ukufikelela kwi-Intanethi ngesathelayithi.
3. Le tuner ivumela ezinye izixhobo ukuba ziqhagamshelane ne-Intanethi.
4. Yehlisa inqanaba lokugqwesa xa ufumana isignali yesathelayithi.
5. Iphelisa umngcipheko wokukhenkceza ngelixa ujonga umfanekiso okanye isandi.

Unxibelelwano usebenzisa olu khetho lukhawuleza kwaye luthembekile. Ukuba kukho i-tuner eyakhelwe-ngaphakathi, oku kwenza kube lula ukujonga amajelo angafihliweyo. Ngokuqhelekileyo, ezi azikho ngaphezu kwe-10 ekhulwini yenani labo. Ukujonga okuseleyo, kuya kufuneka uthenge ikhadi leCAM kumnikezeli. Ukuba useto lwenziwe ngokuchanekileyo, kuyakwenzeka ukujonga amajelo avulekileyo kubaboneleli abaninzi. Oku kuvumela ukufikelela kwinani elibalulekileyo losasazo. Ngokuthenga iTV ene-tuner eyakhelwe-ngaphakathi, umsebenzisi ugcina ekuthengeni umamkeli. Ukongezelela, oku kunciphisa ukusetyenziswa kweengcingo ezongezelelweyo kwindlu. Ukungalungi kwe-DVB S2 kusekho ukuxhaphaka kwayo okuphantsi. Ngelo xesha, inani lezo ziteshi likhula rhoqo, okwenza uxhulumaniso lube nenzuzo ngakumbi.

Indlela yokudibanisa nokuseta iTV yesathelayithi ngeDVB S2 esemgangathweni

Ukuqhagamshela umabonakude wesathelayithi, umsebenzisi kufuneka enze isigqibo sokuba ingaba amajelo asimahla anele na kuye. Ukuba ulindele ukwandisa amandla akhe, kuyimfuneko ukukhetha umboneleli ofanelekileyo kwaye unqume ukuba yeyiphi ipakethe aceba ukuyithenga. Ngaphambi kokudibanisa ngokuthe ngqo, kufuneka wenze oku kulandelayo:

1. Qhagamshelana nomnikezeli kwaye usayine isivumelwano kunye naye.
2. Fumana ikhadi leCAM kuye ukuze ufikelele kwiphakheji ekhethiweyo yamajelo.
3. Ukuba kuyimfuneko, kufuneka uthenge umamkeli oxhasa iDVB S2.
4. Faka i-smart card kwindawo efanelekileyo kwaye uyibhalise kumboneleli.

Emva kokugqiba la manyathelo, kufuneka ulinde de idatha yobhaliso ihlaziywe. Ngoku kufuneka udibanise ngokuthe ngqo kwaye uqwalasele iziteshi. Ukwenza oku, kufuneka wenze la manyathelo alandelayo:

1. Ngasemva kwi-TV, kufuneka ufake intambo esuka kwisitya sesathelayithi kwisokethi elungiselelwe yona ngasemva.
2. Ukuze umisele amajelo, kufuneka uqalise ukukhangela kwawo.
3. Ekuqaleni, into enye kuphela yomsebenzi enegama elithi “Khangela” iya kubonakala kwiisetingi.
4. Okulandelayo, kuya kufuneka uchaze umthombo wophawu. Njengoko usazi, usasazo lukamabonakude lunokuba lusemhlabeni, lwesathelayithi okanye lwedijithali. Kwimeko eqwalaselwayo, kuyafuneka ukuba kuboniswe ukuba sithetha ngesathelayithi ngokujonga umgca ofanelekileyo.
5. Ijelo ngalinye lesathelayithi linxulunyaniswa nesathelayithi ethile. Kufuneka uchaze ukuba yeyiphi kwaye usete iiparamitha zayo.
6. Kwisikrini sokukhetha sesathelayithi, ungakhangela kwezo sele zikwimemori yeTV. Ngamnye kubo, unokubona igama kunye nezihlandlo ezisetyenziswayo. Ukuba ucofa iqhosha elithi “Tshintsha izicwangciso zesathelayithi”, unokuhlengahlengisa iiparamitha zayo. Iphepha liya kubonisa umgangatho wesignali efunyenwe kuyo. Ukuba kuyimfuneko, unokongeza isathelayithi entsha ngokucofa iqhosha elifanelekileyo.
7. Okulandelayo, kuya kufuneka uchaze iiparameters zokukhangela. Kukho iinketho ezintathu apha: “Tyiba amajelo afihliweyo”, “Khangela uthungelwano” kunye “nokukhangela okungaboniyo”. Omathathu amabala angashiywa engakhange aqwalaselwe.
8. Kufuneka ucofe iqhosha elithi “Run”. Emva koko, amajelo aya kukhangelwa ixesha elithile. Umsebenzisi unokulinda isiphelo okanye ayeke. Kuzo zombini ezi meko, amajelo afunyenweyo aya kugcinwa.

Emva kokuba iskena sigqityiwe, unokuvula useto kwakhona kwaye uye kwicandelo elithi “Amatshaneli”. Ukuba kuyimfuneko, unokujonga uluhlu kunye neeparamitha zabo, kunye nokwenza ukuhlela kokugqibela kwezicwangciso zetshaneli.

Iingxaki zokuseta ezinokwenzeka

Nantsi indlela ucwangciso lwenziwa ngayo kwiimeko ezininzi. Ngokuqhelekileyo kwenzeka ngokuzenzekelayo, okwenza kube lula ukuqala ukubukela imiboniso yeTV kwikamva elikufutshane. Nangona kunjalo, ngamanye amaxesha iingxaki zinokwenzeka ngexesha lokuseta. Ezona zixhaphakileyo kuzo zezi zilandelayo:

1. I-eriyali engalungiswanga ngokufanelekileyo . Ukuba ayilawulwa ngokuchanekileyo, iya kubangela ukuhla okubukhali kumgangatho wesignali. Ukuba umsebenzisi udibana nale nto, makaqinisekise ukuba ikhokelwa ngokuchanekileyo .
2. Ukusebenzisa umamkeli – iimpazamo zinokwenzeka xa udibanisa .
3. Ngamanye amaxesha ikhadi elinikezelwe ngumboneleli weCAM aliboneleli ngoqhagamshelwano olulungileyo . Kule meko, kufuneka uyibeke ngokuchanekileyo kwikhonkco.
4. Ngamanye amaxesha i-TV isebenzisa i-firmware yakudala . Kule meko, kufuneka ihlaziywe yakutshanje.
5. Kwezinye iimeko, iingxaki zesignali zinokuthi zenzeke ngenxa yokungaphumeleli kobugcisa komthumeli . Kule meko, kucetyiswa ukuba ubize umnikezeli kwaye ucacise imeko.

Ngesiqhelo, xa uqhagamshelwe ngokufanelekileyo, iingxaki zibangelwa ziimeko ezingaqhelekanga. Ukufumana isisombululo, kufuneka uhlolisise iiparitha ezimiselweyo okanye ukusetyenzwa kwezixhobo ezikhoyo kwakhona.

Ufumanisa njani ukuba iTV inesathelayithi tuner

Ulwazi malunga nobukho besathelayithi tuner iqulethwe kumaxwebhu obugcisa eTV. Ungayibona ngokwakho okanye uye kwiwebhusayithi yomenzi kwaye ufunde idatha eboniswe apho.