Ngaphambili yini isicatulo sokugcina isixhumanisi?

Xa sihamba ukubona iindlela zethu ezithandwayo nokuba sijika kwi-intanethi - kunye nokuba ngoku wena ubenzi ngokwesiphumo, sifuna ukukhumbula phakathi kwesiqhathaniso se technology esetshenziswa. Ukuphendulela icabhu le-coaxial – icabhu le-coaxial lihlola lokugcina ngenxa yobungakanani bese lizama ukufaka kwi-intanethi.

Icabhu le-coaxial lixhaswa ngokushesha. Yilishi elikhulu elihlala emanzini. Leli layout lihlola ngokushesha ngoba liqaphele isiqindi sesikweletu sikhulu kakhulu. Ngaphambili Coaxial Cable isikweletu sikhethe umoyi omkhulu? Ngiyavuma, bheka okuyintsha phambi kokunyuzwa.

Zingaphi Izicabhu Ze-Coaxial Zibuyekeza Isikweletu?

Zonke izicabhu zilingana nezinye iindlela zokubuyekeza isikweletu, futhi izicabhu ze-coaxial zazingezantsi. Icabhu oluhlaza lokudala libuyekeza isikweletu esincinci, yokuba angaze asebenze ngokulandel’ ukusebenza. Ukuba kungene Coaxial Cable angasebenzi ukubuyekeza isikweletu, lokunye usetyenziswa kuhlukele amaxesha engaphambili.

Kunezinto ezininzi eziphumaphakathi ukuthi ngaba ngani ilethu lidale. Into yindawo yokuba amandla angaphakathi azibonakalise kunye nokuba ubukhulu be-signal obungayiphi ngokubanzi, ubukhulu bese-besigqibo esebenza ngenxa yesikhatsi sokuphela kanye nokuba ubukhulu besigqibo sithile. Ngexemplo, kungenzeka ukubona ukuba amasignali amahulu angenxa lokulandelayo aluhlola kakhulu ngokwesikhatsi semva kwezinto ezilandelayo. Ukuba ube ungene ngesignali esihluke, kungenzeka ukuba lizozibuyisana ngokupheleleyo ngemilenze engapheleleyo.

Ngubani igama le-signal eliphakathi kwebhasi le-coaxial?

Isixhumanisi esincinci phakathi komphendulo wesigqibo se-coaxial nguqukumbuzo lwake. Isigqibo sesikhatsi esishaya kungenza ukudala isigqibo. Isigqibo se-coaxial singenisa amasignali ngemilenze we-500 meters (1,640 feet) ngokusebenzisa umkhondo wobunye we-signali. Kodwa, ngokushesha, ilenkatho lengenziwayo lingaqondelana ngequkumbuzo lesigqibo kunye nezinto ezintsha njengoba ubukhulu besigqibo bezityenziswa.

I-cable yasekhoba esibonakaleyo iyakwazi ukugcina ukuqondiswa kwesinye kwezinto. Oku ngokushesha kufuneka isinyalele, kodwa uma icabli ayaqondisiwe kakhulu lokhu ingezantsi kubantu. Ngoko ke kufuneka sithathe inxalenye yesikhephe. ukuhlanganiswa kokuba ngenkxaso ye-coaxial sityenziswa.

Yintoni umphumelelo wokuqondiswa kwenyawo?

Manje, yeyiphi le-cable yiyo yintlizyo yakhe yokuba ngokuqinisekileyo ukuba ubuchaze iphethelo elikhoyo — yilwe lento “umphumelelo wokuqondiswa.” I-cable yasekhoba yiyo yintlizyo kunye nokulula ukuba akuxhasa kakhulu ukuba isinyalele siyakuqinisekisela.

Nge-cable yasekhoba, umphumelelo wokuqondiswa we-100 mita (noma 328 amaxhefu) yomlomo we-cable wenza ngaphambi kokucacisa kusala okuncinci no-20dB (idecibel). Ngenxa yalokho, ngokuqinisekileyo kukuya ku-20dB: Uma isinyalele sisixa ngaphezulu kwe-20dB ifunekayo ukuba asikhwalekelanga ukubona isinyalele esingafanelekileyo, futhi TV yawethu uzoba ngokubhuramele okanye ngonye into imigca yewebhu yayingatholi kakhulu.

Umgama Wokuba Ngokuphambili Kwisinyalele

Siyaqonda ukuba uma siphumelela i-distansi, uqukuze lwe-signal eliphezulu yecable yecoaxial ibhokisi, kodwa ngaphambili kwi-linganiso? Ukubhekisisa, ngoku ndizoba ngishumi imigca edingekayo. Ngaku ke ungene icable yecoaxial elincinci le-50 mita (164 amaxhego) Ngaphandle kwesicatshulwa sesicabanga lecable, siyacala ngesinye isinye esikhoyo kakhulu sesignal ephakathi kwe-100%. Kodwa, isignal isithunywa ngaphandle kunye nokuba sifika esiphambili singalabo 50%, okanye ngaphezulu. Uloss olungaphambi lokuthi kufuneka zihlabele izithombe zesiTELEVISION zonke zikwazi ukuphuma ngokushaya okanye ukupixela ngexesha lokuhlola, lokhu kuhlanganisa ngokukhawuleza.

Ukugcina Isinye Sesignal Ngamadistensi Amaninzi

Ngoku ke, ngoku ndiza ukuba ngixhasa ukubuyisela isignal xa usebenzisa amacabanga amaninzi amacoaxial? Lendaweni apho ziyaphatha amaboostring ezinikezeliyo ama-amplifier. Ukudibana kwenye into yokuba uboostring osebenzisa isinyale sasinyalo yona yinto engasebenzisa ukuba liyiqhutywa ngeminyaka eyahlukileyo ngaphandle kwe-cable ukusuka ukuba lisithunywe. Lokhu lingcabanga ukuba isignal isithunywe ngaphandle kunye nokuba singayityelela ngokukhawuleza.

Inqanawa yesibini yintoni ukuba use ngokubheka umgwa wo-coaxial. Ukudala kwezindlela ezidingekayo, uzoba okungakwaziyo ukuphuma kwesayithi esisetyenziswa. Izindlela ezidingekayo ziqinisekisa ukuba zikhuliswe ukusuka emanzini ngenxa yokugcina isayithi esidingekayo.

Ukufakelwa kakhulu kunye nomdlululo womncedisi wamandla nokuyenza isayithi sikusukela sisindane. Ukuprotekisha kakhulu kwi-coaxial cable ngokusebenzisa amaxesha akhona kuphela ukuba asayithi siphume ngokudingekileyo. Ukusuka kokunye ukuba kukho ungeniso okanye into engenziweyo lokusebenza le-cable, kufuneka luhlulekile ngaphambi kokuba isayithi sikwazi ukusukela.

Ngokusho kakhulu ngemva kokugcina ngenqanawe, i-cable yocoxa: uhlamvu kunye nezinto ezivakalisiweyo zethu zo-broadband internet. Kodwa uma ungaphandle phakathi kwezinye ezi-30 kwi-50 amaxhego, isingalo sithunyeliswa. Ungayazi ukuphinde ukuba amathetho angahlukile ngokwesigaba esiqhelekanga, ubuciko bophawulekileyo obungaphambili ukuthi ushona liphuma lokulandelayo, kunye nokudala okudingekayo yokuba ushona wakho wesota liyinketho elincinci lokuncedeka. Lokhu kulula zonke izicatshululo zezi zinto kunye nokuba singafuna ukubona izitsha zakuziphiwo kunye nokufika kwi-internet ngendlela engaphansi kwezi zinto ezincediweyo okanye ebukhosini kwenqanawa yezimpahla yakho yezikhono ezidingekayo