Esikhathini lapho izinsiza zokusakaza zibusa khona, i-antenna yethelevishini ethobekile ivamise ukunganakwa. Nokho, isalokhu iyithuluzi elinamandla lokuvula inqwaba yamashaneli e-TV amahhala. Lo mhlahlandlela uhlolisisa ukuthi iyini i-antenna kamabonakude, ukuthi isebenza kanjani, ubuhle nobubi bayo, kanye namathiphu okukhetha nokusebenzisa eyodwa ngempumelelo.
Okuqukethwe:
– Luyini uthi lwethelevishini?
– Lusebenza kanjani uthi lwethelevishini?
- Izinzuzo kanye nezithiyo ze-antenna yethelevishini
– Ungalukhetha kanjani uthi lwethelevishini
– Isetshenziswa kanjani uthi lwethelevishini
Yini i-antenna yethelevishini?
I-antenna yethelevishini iyithuluzi elenzelwe ukwamukela amasiginali okusakaza emoyeni (OTA) avela eziteshini zikamabonakude. Lawa ma-antenna afika ngezinhlobo nosayizi abahlukahlukene, kusukela kumamodeli amancane asendlini ahlala eduze kwe-TV yakho kuya kuzinguqulo ezinkulu zangaphandle ezigibela ophahleni lwakho. Umsebenzi oyinhloko wothi lukamabonakude ukuthwebula amasignali e-TV asakazwa emoyeni futhi uwaguqule abe amasignali kagesi i-TV yakho engayibonisa njengamashaneli.
Lusebenza kanjani uthi lwethelevishini?
Izimpondo zethelevishini zisebenza ngomgomo olula: zithwebula amaza omsakazo asakazwa iziteshi zethelevishini futhi ziwaguqule abe amasignali kagesi. Lawa masignali abe esecutshungulwa ishuna kamabonakude wakho ukuze akhiqize isithombe nomsindo weshaneli ye-TV. Ama-antenna aklanyelwe ukuthola izigaba ezithile zamafrikhwensi, okuhlanganisa i-VHF (Very High Frequency) ne-UHF (Ultra High Frequency), lapho ukusakazwa okuningi kwe-TV kwenzeka khona. Ukusebenza kahle kwe-antenna ekwamukeleni lezi zimpawu kuncike ekwakhiweni kwayo, ukuma kwayo, nebanga nesiqondiso ukusuka emibhoshongweni yokusakaza.
Izinzuzo kanye nezithiyo ze-antenna yethelevishini
Inzuzo eyinhloko yokusebenzisa i-antenna yethelevishini yikhono lokufinyelela uhla olubanzi lwamashaneli amahhala ukuya emoyeni ngaphandle kokubhalisa kwanyanga zonke. Lokhu kungase kuhlanganise izindaba zendawo, ezemidlalo, neziteshi zokuzijabulisa ezingatholakali ezinkundleni zokusakaza. Ukwengeza, ikhwalithi yesithombe etholwe ngothi ingaba phezulu kunekhebula noma isathelayithi, njengoba isignali ingacindezelwanga. Kodwa-ke, izithiyo zihlanganisa ukuncika ngendawo yendawo kanye nezimo zezulu, ezingathinta ikhwalithi yesignali. Ngaphezu kwalokho, ukusethwa kokuqala kanye nokuthola indawo ekahle yokubeka uthi kungaba yinselele kwabanye abasebenzisi.
Ungakhetha kanjani uthi lwethelevishini
Ukukhetha uthi lwethelevishini olufanele kuhlanganisa nokucabangela izinto ezimbalwa. Okokuqala, thola ukuthi ingabe udinga i-antenna yasendlini noma yangaphandle ngokusekelwe ebangeni lakho ukusuka emibhoshongweni yokusakaza kanye nezithiyo zesignali ezingaba khona. Ama-antenna angaphandle ngokuvamile anikeza ukwamukelwa okungcono kodwa adinga umzamo owengeziwe wokuwafaka. Okwesibili, cabangela ububanzi obudingayo. Ama-antenna akalwa ngebanga angathola ngalo amasiginali ngempumelelo, ngakho khetha eyodwa ehlanganisa ibanga lemibhoshongo yangakini yokusakaza. Okokugcina, cabanga ngamashaneli ofisa ukuwathola futhi uqinisekise ukuthi i-antenna isekela womabili amabhendi e-VHF ne-UHF ukuze ukwandise ukutholakala kwesiteshi.
Ungalusebenzisa kanjani uthi lwethelevishini
Ukusebenzisa i-antenna yethelevishini kuqala ngokuthola indawo engcono kakhulu yayo. Uma usebenzisa i-antenna yasendlini, ukuyibeka eduze kwewindi elibheke lapho kukhona imibhoshongo yokusakaza kungathuthukisa ukwamukelwa. Kuma-antenna angaphandle, ukuyibeka phezulu ngangokunokwenzeka ophahleni lwakho noma ku-attic kuzoletha imiphumela engcono kakhulu. Uma isifakiwe, xhuma uthi nokokufaka kwe-TV yakho bese uthwebula isiteshi ngemenyu yezilungiselelo ze-TV yakho. Lokhu kuzovumela i-TV yakho ukuthi ibone futhi ilondoloze amashaneli atholwa uthi. Ukuskena kabusha iziteshi njalo kuyanconywa, njengoba iziteshi ezintsha zingase zitholakale noma ezikhona zingashintsha amaza.
Isiphetho
I-antenna yethelevishini iyindlela engabizi futhi ethembekile yokufinyelela iziteshi eziningi ze-TV mahhala. Ukuqonda ukuthi isebenza kanjani, izinzuzo zayo kanye nezinkinga zayo, kanye nendlela yokukhetha nokusebenzisa eyodwa kungathuthukisa umuzwa wakho wokubuka i-TV ngokuphawulekayo. Nge-antenna efanele, ungajabulela ukusakazwa kwekhwalithi ephezulu kweziteshi zakho zasendaweni eziyintandokazi ngaphandle kwesidingo sokubhaliselwe okubizayo noma izinkontileka.
