Xa i-TV iqalisa ukwenza ipixeling okanye kungekho mfanekiso kwaphela kwaye kungekho sokethi ye-eriyali kufutshane, kulula ukudideka. Nangona kunjalo, ngoncedo oluncinci ... ubuchule, intambo ethile, kunye neengcinga ezimbalwa ezisisisekoKuyenzeka ukuba uqhubeke ubukele amajelo kamabonakude edijithali ngaphandle kokwenza nawuphi na umsebenzi wokwakha okanye ukuchitha intywenka yemali.
Kweli nqaku uza kufunda ngendlela esebenza ngayo i-eriyali yangaphakathi, yintoni omawuyiqwalasele xa uyithenga, kunye nendlela yokuyakha. I-eriyali yeTV ephathwayo yasekhaya enentambo yecoaxial ukuze udlule kwaye kweziphi iimeko apho iya kuphendula kakuhle… kwaye yeyiphi eyona nto ingcono ukuba ungawanyuseli amathemba akho.
Yintoni i-eriyali yeTV ephathwayo yangaphakathi kwaye isetyenziselwa ntoni?
Ii-eriyali ze-DTT zangaphakathi, zombini urhwebo kunye nokusetyenziswa ekhaya, ziyilelwe ukuba fumana umqondiso kamabonakude kumagumbi apho kungekho sokethi ye-eriyali Indawo yoqhagamshelwano ikufuphi okanye ayikho apho singathanda ukubeka khona iTV. Zincinci, zikhaphukhaphu, kwaye ziqhagamshela ngokuthe ngqo kumabonwakude okanye umamkeli kamabonakude wedijithali onomdibaniso oqhelekileyo we-eriyali.
Ezi ntlobo ze-eriyali ziluncedo ngakumbi xa sifudukela kwindlu entsha kwaye sifumanisa oko Amanye amagumbi okulala, iiofisi, okanye amagumbi okuhlala akanazo i-eriyali.Okanye xa sitshintsha i-layout yegumbi lokuhlala kunye ne-outlet kuphela eludongeni oluphambeneyo, sinyanzele ukuba siqhube ikhebula elide nelingabonakaliyo kwigumbi.
Xa kuthelekiswa nofakelo lwemveli (ukuqhuba intambo ye-coaxial esuka kwi-eriyali yoluntu okanye ukufakela i-eriyali eyahlukileyo yangaphandle), ii-eriyali zangaphakathi zibonelela ngenye indlela ekhawulezayo. Bakuvumela ukuba ufumane umabonakude wedijithali osemhlabeni (i-DTT) ngaphandle kokuqhuba iintambo ngemibhobho, imingxuma yokugrumba, okanye ukuxhomekeka kwisifakeli, okubenza babe luncedo olukhulu. ukonga okubalulekileyo ngexesha kunye nemali ngexesha lofakelo.
Ii-eriyali zanamhlanje zangaphakathi kukuvela kwee-eriyali ezindala "zephondo" okanye "iidevu" ezikhunjulwa ngabaninzi ngaphezu koomabonakude babo. Umahluko kukuba ngoku badibanisa iisekethe ezincinci ze-elektroniki kunye ne-amplifiers ephucula kakhulu ubuntununtunu kunye nokusebenza xa kuthelekiswa nezo zisombululo ze-analog kwiminyaka eyadlulayo.
Yenza i-eriyali ye-TV ephathwayo yasekhaya ngentambo ye-coaxial
Xa singenayo i-eriyali yorhwebo esandleni okanye sifuna isisombululo esingxamisekileyo, siyakwazi ukudibanisa enye. I-eriyali ye-TV yasekhaya yangaphakathi isebenzisa kuphela intambo ye-coaxial kunye nezixhobo ezisisiseko. Musa ukulindela imimangaliso, kodwa inokukukhupha kwiqhina kwaye, phantsi kweemeko ezifanelekileyo zokwamkela, inike umgangatho owamkelekileyo.
Intliziyo yale eriyali yasekhaya yintambo yecoaxial ngokwayo, equlathe a i-conductor esembindini, umaleko wokugquma, umnatha owenziwe ngentsimbi, kunye nesigqubuthelo sangaphandle.Ngokusebenzisa ubude obufanelekileyo baloo mqhubi ophakathi kunye nobudlelwane bayo kunye ne-mesh, i-radiation element inokuphuculwa ukuze ibambe amaza e-DTT.
Ngaphambi kokuba uqalise, luluvo olulungileyo ukuba ulungiselele imathiriyeli: iqhekeza lentambo ye-coaxial (okanye ezininzi), iipliers, i-cutter okanye i-wire stripper, kunye neteyiphu yombane.Ukuba uza kuqhagamshela i-eriyali ngokuthe ngqo kumabonwakude, uya kufuna kwakhona iplagi ye-eriyali eqhelekileyo okanye intambo esele ipheliswe ekupheleni kwesinye.
Izinto ezifunekayo kunye nokulungiswa kwentambo
Izinto ezisisiseko zokwenza i-eriyali yeTV ephathekayo yasekhaya ilula kakhulu: uya kuyidinga isiqwenga esinye okanye ezibini zentambo kamabonakude icoaxialnjengaleyo isetyenziswa nakuluphi na ufakelo lukamabonakude wedijithali (i-DTT). Ngokufanelekileyo, enye yeentambo kufuneka ibe yinde ngokwaneleyo ukufikelela kwiTV ukuya kwifestile okanye indawo apho umqondiso unamandla khona.
Ngokuphathelele isixhobo, kunye nabanye Iingcingo zokusika, iipliers, kunye nemela eluncedo okanye i-wire stripper Unokwanela. I-tape yombane iya kusebenza zombini ukukhusela amajoyina kunye nokukhusela ngcono ulwakhiwo oluphuculweyo, ukuthintela uqhagamshelwano lobuxoki olunokuthi lube lubi ngakumbi umqondiso.
Isinyathelo sokuqala kukuhluba icandelo lentambo ye-coaxial. Kufuneka ukhuphe ngokucophelela ibhatyi yangaphandle kunye nentsimbi yentsimbi, kunye ne-insulation ejikeleze umqhubi weziko, ukwenzela ukuba le yokugqibela ibonakaliswe ngokupheleleyo. Injongo kukuba shiya malunga ne-14 yeesentimitha ze-conductor esembindini simahla., ubude obufanelekileyo bokusebenza njengento yokufumana kwibhendi ye-UHF esetyenziswa yi-DTT.
Obo bude buvelileyo bomqhubi buya kuba yinxalenye "esebenzayo" ye-eriyali. Nje ukuba ukhutshiwe, sebenzisa iipliers Sika intambo engaphezulu kwaye uyimise, umzekelo kwimilo "L" okanye ngegophe elithambileyo.Olu tshintsho luncinci lunceda ukuyiqhelanisa kwaye uyibeke ngokufanelekileyo kufuphi nefestile okanye kwindawo ekhethiweyo.
Ukwakhiwa kwamanyathelo ngamanyathelo e-antenna yangaphakathi yasekhaya
Ukuphucula ukwamkela, ungasebenzisa isahlulo sesibini se-coaxial cable, oya kudibanisa ngqo kumabonwakude. Ngokufanelekileyo, le ntambo kufuneka ibe ne ubude obaneleyo ukufikelela ukusuka kwigalelo le-eriyali yeTV ukuya kwindawo enophawu olungconoedla ngokuba yifestile ejonge ngaphandle okanye udonga olungavalwanga ngekhonkrithi nezakhiwo.
Ngale ntambo yesibini, phinda inkqubo efanayo yokuhluba kwesinye seziphelo zayo: Susa i-sheath yangaphandle, i-mesh, kunye ne-dielectric yecandelo lokugqibela, ishiya i-conductor esembindini ibonakala. Xa unezo centimitha zobhedu eziveziweyo kwakhona, yigobe kwakhona ibe yimilo ethi "L" okanye ifane nepliers, kodwa ngeli xesha thatha inyathelo elibalulekileyo: umqhubi osembindini kufuneka angachukumisi i-mesh yentsimbi esele isemva nje kwe-insulation.
Isinyathelo esilandelayo kukudala i-gap encinci phakathi kwe-mesh kunye ne-sheath yeplastiki yekhebula lesibini. Ukwenza oku, sebenzisa i... I-screwdriver encinci, i-awl okanye into echongiweyo kwaye uvule isithuba apho ugobe khona intambo kwimilo ethi "L". Lo msantsa kufuneka ubonakale ngokucacileyo phakathi kwe-braid kunye ne-sheath, ngaphandle kokusika yonke indlela ngentambo okanye ukonakalisa ngokugqithisileyo isikhuselo.
Ngoku lixesha lokujoyina omabini amacandelo. Faka umqhubi weziko elingenanto lentambo yokuqala (leyo iya kusebenza njenge-eriyali "intonga") kumngxuma osanda kuwenza kwintambo yesibini. Kufuneka idibane ne Umnatha wentsimbi wentambo engundoqokuba olo xhulumaniso lulo oluya kuvumela i-eriyali ukuba isebenze ngokuchanekileyo njengokwandiswa kwenkqubo yolwamkelo.
Nje ukuba udibaniso lwenziwe, luqinise ngenyameko iteyiphu yombane eqinisiweyoI-insulation igubungela zombini indawo ye-mesh kunye ne-conductor engenayo. Injongo yalo kukukhusela uxhulumaniso lomatshini, ukuthintela iisekethe ezimfutshane ngengozi phakathi komqhubi ophakathi kunye ne-mesh, kunye nokubonelela ngokungqongqo ukukhusela ukunyakaza phantsi kokutsalwa ngokukhawuleza.
Uqhagamshelo lweTV kunye nokubekwa ngaphakathi ekhaya
Emva kokugqiba inxalenye "yezandla" ye-eriyali, konke okuseleyo kukudibanisa enye isiphelo sentambo yesibini ye-coaxial kumabonwakude. Esi siphelo kufuneka sibe igqitywe ngeplagi ye-eriyali eqhelekileyo, njengaleyo isetyenziswa kufakelo eludongeni. Ukuba ngaba awukabinayo efakiweyo, kuya kufuneka ukhulule kwaye ulungiselele intambo kwiplagi ngokwemiyalelo yesiqhagamshelo.
Nje ukuba iplagwe kumabonakude, eyona ndawo ibalulekileyo iqala: ukufumana eyona ndawo ilungileyo ye-eriyali yasekhaya. Ngokubanzi, ezi ziseti zangaphakathi zisebenza ngcono kakhulu. xa ibekwe kufuphi nefestile ngokujonga ngaphandle, ukuphepha ukuba nekonkile eninzi, iindonga ezingqindilili okanye izakhiwo ezide ezivale indlela yomqondiso.
Ukuba uhlala kwindawo ephakamileyo, i-penthouse, okanye indlu evaliweyo, uya kufumanisa ukuba i-eriyali yasekhaya, ebekwe kwindawo efanelekileyo kwaye ilungelelaniswe ngokufanelekileyo nomonde omncinci, inokunika ulwamkelo olunesidima ngokumangalisayo. Nangona kunjalo, ukuba indlu yakho ikumgangatho ophantsi ujikelezwe ngu ... izakhiwo ezinde kakhulu okanye kwi-semi-basement ene-exposure encinci, amathuba okuba isebenze kakuhle ayancipha kakhulu.
Emva kokubeka i-eriyali yasekhaya, faka imenyu kamabonakude okanye yedijithali umamkeli kamabonakude osemhlabeni kwaye wenze uphendlo lwesitishi okanye uhlengahlengisoUnokubona ezinye iitshaneli ngaphandle kweengxaki, ngelixa ezinye zinokufumana i-pixelation, ukuphazamiseka, okanye kungabikho mqondiso konke konke. Zama ukuhambisa i-eriyali kancinane, utshintshe indawo yayo, okanye ulungelelanise ukuqhelaniswa kwayo de ufumane olona xhulumaniso luzinzile.
Kubalulekile ukuqonda ukuba esi sisombululo sisisombululo sexeshana: sinokukukhupha kwindawo exineneyo, kodwa kuqhelekile ukuba Umqondiso unokuba buthathaka ngandlel' ithile, kunye notyekelo olukhulu lokusika. ukuba nge-eriyali esemgangathweni yorhwebo yangaphakathi okanye ene-eriyali efakwe ngokufanelekileyo kwaye ijoliswe ngaphandle.
Indlela yokukhetha i-eriyali yorhwebo yangaphakathi yedijithali esemhlabeni (i-DTT).
Ukuba ujonge isisombululo esizinze ngakumbi kune-eriyali yasekhaya, kungcono ucinge ngokuyithenga. I-eriyali ye-DTT yangaphakathi eyilelwe ngokukodwa ukusetyenziswa ekhayaEzi-eriyali zibandakanya i-electronic circuitry, filters, and amplification eziphucula kakhulu ubuntununtunu kunye nosignal-to-noise ratio xa kuthelekiswa nezixhobo ezineengcingo ezikhululekileyo.
Eyona parameter yobugcisa ibaluleke kakhulu xa uthelekisa iimodeli kukuzuza. Ukuzuza amanyathelo lungakanani umqondiso i-eriyali ekwaziyo ukubonelela kwimveliso xa kuthelekiswa nophawu olufumana emoyeni. Ukubeka ngokulula: i-eriyali enenzuzo ephezulu ihlala ibonelela ngenqanaba lophawu olungcono kwiTV, enceda ukunciphisa iziphazamiso kunye ne-pixelation.
Nangona kunjalo, akwanelanga ukujonga ixabiso eliphezulu lenzuzo enye. Kubalulekile ukuqinisekisa ukuba le ngeniso iphezulu kangangoko. ukufana okunokwenzeka kuyo yonke ibhendi ye-DTT frequencyAbanye abavelisi babonisa kuphela ixabiso kwelona jelo libalaseleyo, kwaye kwezinye iifrikhwensi ukusebenza kuyehla, okubangela ukuba ezinye iitshaneli zibonakale zigqibelele ngelixa ezinye zingangeni.
Enye iparameter ephambili ngumfanekiso wengxolo. Kuba ezi-eriyali zangaphakathi zineamplifier encinci edibeneyo yombane, kubalulekile ukuba esi sikhulisa-lwazi sazise ingxolo. eyona ngxolo incinci inokwenzeka kumqondisoUmfanekiso ophantsi wengxolo uguqulela kwisignali ecocekileyo kwaye, ekusebenzeni, umfanekiso omncinci kunye neengxaki zomgangatho wesandi.
Ngoko ke, xa ukhetha, kuyacetyiswa ukuba ukhangele ii-antenna zangaphakathi iibrendi ezaziwayo nezihloniphekileyoNangona ixabiso linokuba phezulu kancinci. Kulo candelo, umzekelo, abavelisi abafana ne-Televes bavelele, kunye nembali ende kunye neemveliso ezidla ngokuba nexabiso eliphantsi lokubuyisela ngenxa yokuthembeka kunye nokusebenza kwabo.
Imida yokwenyani yee-eriyali zangaphakathi (kwaye xa zisebenza kakuhle)
Masibe nenyani: ayizizo ii-eriyali zangaphakathi ezenziwe ekhaya okanye ezifumaneka ngokurhweba. Ukusebenza kwabo kuxhomekeke ngokupheleleyo kwi ... amandla kunye nomgangatho wesiginali ye-DTT efikelela kwindawo kanye apho ufuna ukufaka khona umabonakude. Ukuba umqondiso sele ubuthathaka kakhulu uvela kwisitalato, i-antenna encinci ayinakwenzeka ukusombulula ingxaki.
Ke ngoko, ngaphambi kokuba uleqe ukuya kuthenga i-eriyali yangaphakathi enamandla kakhulu okanye ukwakha ephucukileyo yasekhaya, kuyacetyiswa ukuba uvavanye indawo eyingqongileyo. Kwizakhiwo ezide ezingqongwe zezinye ezifanayo, ngakumbi kwimigangatho esezantsi okanye ngaphakathi ngaphakathi, iqhelekile ukuba ezi-eriyali zibe... ukusilela ukuvelisa isiphumo esanelisayokuba umqondiso uyancipha kakhulu emva kokudlula kwikhonkrithi eninzi, iglasi kunye nemiqobo.
Iziseko, amagumbi angaphantsi, kunye namakhaya abekwe kwiintlambo ezinzulu okanye iindawo “emthunzini” kamabonakude wedijithali (i-DTT) eziphinda-phindayo ziindawo ezicela umngeni. Ukuba sele kunzima ukuba i-eriyali eqhelekileyo yangaphandle ifumane umqondiso olungileyo, ukucinga ukuba i-eriyali encinci yangaphakathi okanye i-contraption eyenziwe yasekhaya iya kuyicombulula ingxaki idla ngokungekho ngqiqweni; kwezi meko, kungcono ukuhlola izisombululo nge ingeniso ephezulu yee-eriyali zangaphandle okanye utshintsho kufakelo oluhlangeneyo.
Nangona kunjalo, amava abonisa ukuba ii-eriyali ze-DTT zangaphakathi zinokusebenza kakuhle kakhulu amagumbi aneefestile enika umbono othe ngqo ngaphandleIngakumbi ukuba zikhonjwe kwindawo apho amaziko osasazo akhoyo. Xa i-eriyali ikufutshane ibekwe efestileni, kokukhona ulwamkelo lungcono.
Bakwathanda ukunika iziphumo ezilungileyo amakhaya anosapho olunye, izindlu zasedolophini kunye nezindlu zokulalaKwiindawo apho ukuphakama kunye nokungabikho kwezithintelo ezibalulekileyo kuvumela isignali ukuba ifikelele kwiindawo eziphakamileyo, umehluko phakathi kwe-antenna yasekhaya kunye ne-antenna efanelekileyo yorhwebo inokubonakala kakhulu ngokubhekiselele kuzinzo lomfanekiso kunye nenani leziteshi ezifunyenweyo.
Ii-eriyali zangaphakathi/zangaphandle kunye nombane we-5V
Ukongeza kwii-eriyali zangaphakathi kuphela, kukho iimodeli ezixubileyo, ezinje nge epokothweni ye-eriyali yeTVEzi zinokuxhonywa ngaphakathi nangaphandle, ngokuqhelekileyo kwi-facade, balcony, okanye ifestile. ii-eriyali ezixineneyo ezinoyilo olulumkileyo kunye noyilo oluhle kakhuluyenzelwe ukuba ihambe ingaqatshelwanga kangangoko ukusuka esitratweni.
Ezi ntlobo ze-eriyali ezidityanisiweyo zangaphakathi/zangaphandle zisebenza ngcono xa zifakwe ngaphandle kwekhaya. Oku kunengqiqo: xa ibekwe kwi-facade, umqondiso akufuneki udlule kwi-glazing ephindwe kabini, izitena, ikhonkrithi, okanye izakhiwo zetsimbi, ngaloo ndlela ufikelela kwinkqubo yokufumana ngokufanelekileyo. ngokunciphisa okuncinci kunye nomgangatho ongcono ngokungathi yayifihlwe emva kweendonga ezininzi.
Iinkcukacha ezibalulekileyo kukuba uninzi lwezi eriyali zihanjiswa ngaphandle konikezelo lwamandla lwangaphandle. Ukuze zisebenze ngokuchanekileyo, zifuna enye. fumana amandla ombane (ngokuqhelekileyo yi-5V) ukusuka kumamkeli we-DTT ngokwawo okanye kumabonakudePhantse zonke iishuneli zangoku zibandakanya kwimenyu ukhetho lokuvula unikezelo lwamandla lwe-5V ngentambo ye-eriyali elungiselelwe olu hlobo lwesixhobo.
Ukuba uthenga i-eriyali yangaphakathi/yangaphandle kwaye awufumani mqondiso xa uyidibanisa, jonga incwadi ukuze ubone ukuba ifuna umbane kwaye ujonge imenyu yomamkeli ukuze ubone ukuba unayo. Imveliso ye-5V ivuliweNgaphandle kwaloo mandla, i-amplifier edibeneyo ayiyi kusebenza kwaye i-antenna iya kuziphatha ngokungathi yintsimbi elula, eneziphumo ezimbi kakhulu.
Ukusetyenziswa kwangaphandle, ngokuqhelekileyo kuyacetyiswa ukuba udibane neekhathalogu ezithile ze Ii-eriyali ze-DTT ezilungiselelwe ukusetyenziswa ngaphandleIzixhobo zabo, amatywina kunye nezixhaso ziyilelwe ukuba zimelane nemvula, umoya kunye nemitha yelanga ngaphandle kokonakala ngokukhawuleza. Kwiimeko ezininzi, badibanisa ubungakanani obudibeneyo kunye nokuzuza okuphezulu kunye nokukhuselwa kokuphazamiseka okulungileyo.
Ukuthenga iingcebiso kunye nomgaqo-nkqubo wembuyekezo
Xa uthenga i-eriyali kamabonakude wedijithali yangaphakathi (DTT), kubalulekile ukucinga ukuba, nokuba ikumgangatho olungileyo, Akukho siqinisekiso siqinisekileyo sokuba iya kusebenza kakuhle kuzo zonke iindawoKonke kuxhomekeke kokusingqongileyo, umhlaba, umgama oya kwinqaba yeseli, kunye nayo nayiphi na imiqobo ebonakalayo. Yiyo loo nto kunengqiqo ukujonga iivenkile ezikuvumela ukuba uzame imveliso kwaye uyibuyisele ukuba ayihambelani nolindelo lwakho.
Iivenkile ezininzi ze-intanethi ezisebenza ngomabonakude wedijithali kunye ne-elektroniki zibonelela ngokuchanekileyo oko kunokwenzeka: ungathenga i-eriyali, uyivavanye ngexesha elifanelekileyo, kwaye ukuba iyasebenza ekhayeni lakho. Iitshaneli azibonisi ngokuzinzileyo okanye amajelo amaninzi awakho.Ukucwangcisa imbuyekezo, kufuneka ngokucacileyo ugcine ukupakishwa, iintambo, iiadaptha, izibophelelo zentambo, kunye nazo zonke izikrufu zikwimeko entle.
Xa uyifaka okokuqala, kungcono ukwenza oko ngononophelo oluthile: akukho nto injalo Ukutsala ikhebula, ukugoba kwii-angles ezibukhali, okanye ukulahlekelwa ngamacandeloUde uqiniseke ukuba i-eriyali isebenza njengoko ufuna, kungcono ukuba ungashiyi amanqaku okanye umonakalo onokuthi wenze nzima imbuyekezo okanye ukutshintshiselana ngemodeli enamandla ngakumbi.
Ngokubanzi, isincomo kukuba ukhethe ii-eriyali zangaphakathi ezivela kubavelisi abaziwayo, njengeTelevesEzi mveliso, eziye zahlala kwimarike iminyaka kwaye ziqokelele amava amaninzi kwiinkqubo zolwamkelo, zithande ukuyilwa ngcono, zineenkcazo ezicacileyo, kwaye, ngokusebenzayo, zinezinga eliphantsi lezikhalazo kunye nembuyekezo kuneenketho ezingabizi kakhulu, ezingenamagama.
Okokugqibela, ungalibali ukuba ukufaka uninzi lwee-eriyali zangaphakathi ilula kakhulu nakubasebenzisi abangenamava obugcisaNgokuqhelekileyo zibandakanya zonke izixhobo eziyimfuneko (iintambo, izixhobo zombane xa zifunwa, izibophelelo zekhebula, iiplagi zodonga, izikrufu, kunye nezibiyeli) kunye nencwadana yemiyalelo eneenkcukacha. Kwiimeko ezininzi, okufuneka ukwenze kukudibanisa intambo, ubeke i-eriyali kweyona ndawo ingcono, kwaye ulungise kwakhona umamkeli wakho kamabonakude wedijithali (i-DTT).
Emva kokuqwalasela zonke iinketho, ukusuka kwii-eriyali zeTV eziphathwayo ezenziwe ekhaya ezenziwe ngentambo ye-coaxial ukuya ngaphakathi nangaphakathi / ngaphandle kwee-eriyali zedijithali zomhlaba (i-DTT) ezivela kubavelisi abakhethekileyo, kucacile ukuba kukho indawo yokufumana isisombululo esifanelekileyo phantse kulo naliphi na ikhaya kunye nohlahlo lwabiwo-mali. Ukuqonda indlela i inzuzo, umzobo wengxolo, indawo, kunye nomgangatho wophawu olufunyenweyo Ikuvumela ukuba ukhethe ngcono, uvavanye ngokuqonda, kwaye wazi xa iqhinga elincinci elenziwe ekhaya lanele kwaye xa kucetyiswa ukuba utsibe kwi-eriyali ekumgangatho ophezulu okanye ufakelo olupheleleyo lwangaphandle.
