Kordhiyo The signal telefishanka iyo kala duwanaansho ay

Sida dhaqanka muujinaysaa, sawirka shaashadda TV aanu had iyo jeer ka dhergin macaamiisha ee tayada. Xaaladaha noocaas ah inta badan kaa caawin kara kordhiyo signal television - qalab kuu ogolaanaya inaad si ay u bixiyaan heerka ugu fiican ee qaab qaata. Waxa aan laga badiyay ay ku tacaluqa xitaa inta lagu guda jiro horumarinta deg deg ah ee technology cable. Xaqiiqada ah in qalab noocan oo kale ah waxaa loo isticmaali karaa by users sida shabakadaha wadareed, iyo macaamiishu "cable".

Codsiga ee dalka

kordhiyo The of signal television ah in la siiyo waab waa xalka ugu fiican ee dadka ku nool meel ka baxsan magaalooyinka. Xaqiiqdu waxay tahay in ay ka maqan yihiin suurtagalnimada ee la xidhiidha in shabakadda cable, antenna dhaweynta signal saboolka ah, ama si fudud joogitaanka dhowr qaateyaasha (telefishinada), qalab this waa lagama maarmaan. Tani waa run gaar ahaan meelaha kuwa meesha heerka qaylada dabiici ah oo saamayn ku tayada signalka. Waa in la ogaadaa in kiisaska noocaas ah, khubaro ku talinaynaa in la isticmaalo qalabka sida ee view of heerarka misalignment yar in sifaha signal la gelin ah. Ka hor inta adeegaya heerka television signal xoog ku aadantahay on channel kasta si gooni gooni ah.

Sammeecado antenna

In kiiska halkaas oo aqbalana signal ah waxa uu ku yaalaa meel fog ka TV-ga iska, iyo si ay u magdhabo khasaarihii ka dhaca on fiilooyinka dheer, idiin roon tahay in ay isticmaalaan Sammeecado antenna. Waxay sidoo kale waxaa badanaa loo yaqaan "anteenooyinkooda firfircoon". In la isticmaalo, la kordhiyo tayada signal laga yaabaa caadi ah (wideband) ama kala qaybsan (UHF iyo VHF).

Doorashada kordhiyo

A macaamiisha su'aal aad caadi u ah ee la xidhiidha qalabka sida kordhiyo television signal ah sida, "Sida loo doorto aalad ku haboon," Waxaa lagama maarmaan ah inay tixgeliyaan qaar ka mid ah oo xuduudaheedu muhiimka ah. Kan koowaad waa shaqeeya band frequency. Xaqiiqada ah in channels ee soo dhawaynta ee antenna laftiisa iyo kordhiyo waa in dhigma. Qaybta kale - heerka wax soo saarka ugu badan (qalab haddii wanaagsan, tiradaasi ma aha in ka yar 100 dB / UV). digtoonyey saddexaad waa in faa'iidada waa in ay ahaataa sida saxda ah in tilmaanta 40 dB. isticmaalka awoodda caadiga ah sida caadiga ah waa in kala duwan ee 10 ilaa 60 MA. Si Loo soo kobo qalabka doorashada, waa in la ogaadaa in kordhiyo television signalka waa in uu leeyahay faa'iido ugu weyn ee suuragalka ah ugu soo noqnoqoshada hooseeyo.

Sammeecado for shabakadaha cable iyo noocyada ay

Ku xiridda kordhiyo ee ku dhici kara qaybaha kala duwan ee network ee macaamiishu cable TV. Marka tan la eego, waxaa jira noocyo badan oo ka mid ah qalabka. Waxay ku xiran tahay doorashada ugu horrayn on meesha qalabka lagu rakibi doonaa. Noocyada ugu waaweyn ee qalabka - Guryo iyo Sammeecado jirridda. Nooca ugu horeeya waxa fudud yahay. Alaabtii oo loo daaweeyo, inta badan lagu rakibay ee guryaha, halkaas oo aad u baahan tahay in ay ku xidhmaan telefishinada badan. Sammeecado jir, ku salaysan magacyadooda, ayaa lagu wadaa in wadooyinka cable. Xaaladaha intooda badan, waxay waxaa la geeyaa jirka ah u dhintaan-tuuray shaabadeeyey, si ay u helaan in qayb ka mid ah network.

Sammeecado satellite

qalab signal kordhiyo TV Satellite waa cusub. Waxay bixisaa user ah fursad ay ku qaataan labada telefishanka iyo signal satellite ah. Marka loo isticmaalo on masaafo fog ka antenna dhici magdhow signal khasaaraha iyo qaybinta dhex qaata badan. Sammeecado noocan oo kale ah lagu daro karaa ama si gooni gooni ah u shaqeeyaan.