Faka i-kagesi elincane kwisignali yakho ye-digital ye-TV
Uma usebenzisa i-antenna bese manje usuqaphele ukungafani phakathi kwe-analog neyethelevishini yedijithali - isikrini esikhulu, izinombolo zesiteshi namaphoyinti wedesimali, ukusetshenziswa kwebhokisi lokuguqula i-DTV, njalonjalo.
Kukhona omunye umehluko, umehluko ongabonakali, yilokho imbangela yokuthola okulahlekile noma engavumelaniyo kanye nohlelo olusha lomhumushi we-Federal Communications Commission (FCC).
Yisignali ye-digital digital.
I-Analog v. I-Digital TV Signal
Izimo zokusakaza ezifanayo ezinikeziwe, isignali ye-digital ye-digital ngeke ihambisane nesikhangiso se-analog TV ngoba izingqinamba ezisemhlabeni ziyithinta kakhulu kune-analog. Izinto ezithinta ukwamukela zihlanganisa ophahleni, izindonga, amagquma, izihlahla, umoya, njll.
Isignali yedijithali inokukhathazeka kangangokuthi umuntu ohamba phambi kwayo angayigxuma ngaphandle kokungaxhunyiwe. Uma kuqhathaniswa, isignali ye-analog ifana ne-roach. Kuzothatha okungaphezu komuntu ohamba phambi kwe-antenna ukulahla isignali.
Ukuziphatha komlando wukuthi ukuze uthole isithombe esihle ngaphezu kwomoya udinga isignali enhle engena kwi-tuner ye-TV, kungakhathaliseki ukuthi itholakala ngaphakathi kwe-TV noma ibhokisi lokuguqula idijithali . Inkinga yukuthi ukulahlekelwa kwesignali ukukhathazeka nge-TV yedijithali.
Kwezinye izimo, ungenza konke okulungile kodwa ungatholi isignali. Noma, ungase ulahlekelwe ukulahleka kwamasignali ngesikhathi isibonakaliso se-digital digital sihamba sisuka ku-antenna kuya ku-tuner.
Kungakhathaliseki ukuthi kwenzekani, ukukhulisa noma ukukhulisa isibonakaliso kungalungisa ukukhishwa kwakho.
Ingabe Udinga Amaplification?
Imikhakha eyinhloko yokukhulisa yilapho unesignali ekhona esitholwa yi-antenna. Uma i-antenna inesignali bese ukukhuliswa kungaba yiphilisi yokulahlekelwa kwesignali. Uma kungenjalo ukukhushulwa cishe ngeke kulungise inkinga yakho.
Ukuthuthukisa i-Digital TV Signal
Amplification ngumqondo okhohlisayo. I-CEO ye-AllAmericanDirect.com, uMike Mountford, wachaza kahle uma eqhathanisa ukukhulisa isignali ye-digital digital ukuxhuma ibhulogi ekupheleni kwephasi ukuze uthole amandla angcono okupompela.
Endabeni yakhe, i-antenna ngaphandle kokukhulisa ifana ne-hose ene-light trickle ephuma ekugcineni. Ngedwa, lokhu kuqhuma akunamandla kakhulu uma uphefaza, kodwa njengoba kuyisigqila ungasebenzisa ibhuloho ukwandisa ukucindezelwa kwamanzi ngokunciphisa inani lemanzi eliphuma ekupheleni. Isibhamu sizofaka isikhala esinamandla kunaleyo.
Kulesi sibonelo ibhulogi yi-amplifier namanzi yisignali ye-digital digital. I-amplifier isebenzisa ugesi ukuze ihambise isignali ye-TV futhi iyithumele endleleni yayo ngokukhulisa ugesi. Lokhu kuvumela isignali ye-DTV ukuba ihambe phambili ngamandla amaningi, okufanele ahlinzekele isithombe esifanayo.
Amplification akuyona ukulungiswa okuqinisekisiwe kuyo yonke into embi yokuthola i-TV kodwa kuyindlela yokukhetha. Futhi akuyona isilungiso sokuthola isignali ye- TV uma omunye engekho - okusho ukuthi i-amplifier ayinweli ububanzi be-antenna. Ivele isinikeza isignali indlela ehamba ngayo ukusuka e-antenna kuya ku- tuner yedijithali (i-TV, i-DTV converter, njll). Sethemba, le push iswanele ukuthola isignali enhle ku -tuner ye-TV .
Imikhiqizo ye-Amplified ngokuvamile ibiza ngaphezu kwemikhiqizo engenziwanga. Ngakho-ke, kungcono ngaso sonke isikhathi ukuxazulula izinkinga ezithile ezingaholela ekulahlekelweni kwesignali ngaphambi kokuba uye esitolo futhi uchithe imali yakho kumkhiqizo ongakwazi noma ongawulungiseli ukukhishwa kwakho kokuthola.
Izinkinga Zokuthola Izinkinga Ngaphambi Kokuthuthukisa I-Digital Digital Signal
Ingabe usebenzisa i-splitter, i- RF modulator , noma i- A / B switch ? Lezi zingxenye ezijwayelekile futhi abantu abaningi bayayisebenzisa, ikakhulukazi uma uzama ukubukela nokurekhoda iziteshi ezimbili ngebhokisi lokuguqula i-DTV.
Inkinga yabo iwukuthi bancishisa amandla esignali yedijithali - okusho ukuthi akusiyo eqinile ukushiya ingxenye njengoba ingena kuyo. Ukuphazamiseka kungaqinisa isibonakaliso ngaphezu kwezinga eliphansi izingxenye zakho zidinga ukuveza isithombe esihle.
Uma usebenzisa i- antenna yangaphandle bese ubheka uhlobo lwekhebula le-coaxial elixhunywe phakathi kwe-antenna nomugqa ongena endlini. Ikhebula lakho le-coaxia lingase libe imbangela yesignali empofu efika endlini.
Lokhu kulahlekelwa kwesignali kubhekiselwa njengokunciphisa, okuyisilinganiso sokulahlekelwa kwesignali ngaphezu kwebanga. Endabeni yezinhlamvu ze-coaxial, sibhekisela ku-RG59 no-RG6. Kulula nje, i-RG6 inombhalo-digital ngaphezu kwe-RG59.
Ngamanye amazwi, i-RG59 igxilisa ngaphezulu noma inokulahlekelwa kwesignali ngaphezulu kuka-RG6. Ikhebula le-RG59 lingase libe imbangela yesignali yakho empofu. Ukushintsha ikhebula lakho ku-RG6 (okungcono i-RG6 evikelekile enezikhonkwane ngezixhumi zegolide) kungalungisa inkinga yakho yokwamukela ngaphandle kokusebenzisa i-amplifier.
Yiqiniso, ukuthenga umkhiqizo ophuthumayo cishe kulula kunokushintsha ikhebula le-coaxial endlini yakho.
I-antenna yakho yamanje ingaba isizathu senombolo yesithombe esibi. I-Mountford ithi amanye ama-antenna angasebenza kuze kufike ku-50% ngaphansi kokusebenza kahle ukucubungula izimpawu ze-TV zedijithali v.
Iseluleko se-Mountford ekucwaningeni izinkinga ze-antenna kufana nemayini - iya ku- Antenna Web futhi usebenzise ithuluzi labo le-intanethi ukuhlaziya imininingwane ye-TV yokuthumela indawo yakho. Ungase futhi uzame ukungena kabusha i-antenna, kodwa hhayi ngemuva kokuya ku-Antenna Web ukuze uthole izixhumanisi zakho eziqondile lapho ungayikhomba khona.
Ukuthenga i-Amplifier
Amaplifiers noma ama-signal boosters we-TV ajwayelekile kakhulu kuma-antenna, kodwa ungabathenga njengemikhiqizo yodwa yedwa. Ukupakisha komkhiqizo kuvame ukukhangisa i-antenna ekhulisiwe noma enikwe amandla. Uma ubona isilinganiso se-DB bese uyazi ukuthi sikhulisiwe.
Ngokuqondene nokuthenga izeluleko, njengoba nje ungakwazi ukukhiqiza izitshalo zamanzi, ungaphumelela-ukwandisa isitoreji sedijithali. Kufana nokushaya izikhala ze-stereo ngokuvulela ivolumu kakhulu.
Ingxenye eyinkimbinkimbi ukuthi kunzima ukukala ukuthi yini enamandla kakhulu kwe-tuner yakho. Abanye ochwepheshe engiwakhulumile ukutusa ukukhulisa okuzungezile ku-14db. Uma ungakwazi ke ukuthenga umkhiqizo olungiselelwe izilungiselelo zeDB.
Uma uthenga i-antenna ekhulisiwe, qiniseka ukuthi uya kwi-Antenna Web ukuze uqiniseke ukuthi i-antenna yakho ihambelana kahle ngaphambi kokuxhuma amandla.