Eriyali Offset - ezona TV imijelo in Obusemagqabini ubunjani

Kuba ihlabathi namhlanje luphawulwa uphuhliso lobuchwepheshe ulwazi ngokukhawuleza. Ngoko ikuphucule nengcaciso ekudluliseleni iindlela. Ngapha koko, kufuneka banike umgangatho ophezulu kakhulu nesantya processing. Enye yezi nkalo ziye zasetyenziswa kakhulu, iye yaba satellite. Oku kusetyenziswa kwiinkalo ezininzi zezinto ezenziwa luluntu, ukusuka kuphuhliso mveliso enkulu kumakhaya amancinci.

Enye yezi meko i TV yesathelayithi. Ngoku kunzima kakhulu ukufumana ubuncinane enye ibhloko yeeflethi, zazingathandanga asekelwe ubuncinane embalwa maza. Oku akumangalisi, kuba imali encinci ungafumana Obusemagqabini ubunjani lamajelo TV ezivela ehlabathini lonke.

Kukho iindidi ezimbini eziphambili zezixhobo: focal ngqo kunye antenna offset. umahluko zazo eziphambili ngalinye enye indawo isithuba uphawu ezifunyenweyo. Kwakhona Ubukhulu ezahlukeneyo esityeni ezizekelisayo. Ngenxa yoko, antenna offset lincinane ngobukhulu, nencopho likhuphe converter (in reflection yakhe kwenzeka) iya lisisiqalo ngokunxulumene esqwini kwijometri. Kuba eriyali ngqo focal luphawulwa ubungakanani amakhulu, ngokufanelekileyo, kubonakala kwindawo obekwe kwi esqwini zejometri.

antenna Offset isebenza kumgaqo isiginali vangama ukusuka anfasnoy inxalenye parabola ukuya lokuguqulela. Isebenzisa ingxenye kuphela kwisebe parabola. antenna kakhulu offset unalo anfasny uhlobo amaqanda, ezo ezincinane - kwisangqa. Nayo izixhobo ngakumbi ukuba ubukhulu bepali ubuncinane imitha ngaphezu kwesinye. Kuba amancinci - iisentimitha ngaphantsi kwe anekhulu.

Kodwa kubalulekile ukuphawula ukuba i-eriyali offset ayikwazi ingasetyenziswa ukufumana umqondiso kamabonakude yobungcali. Oku kungenxa yokuba i-ngokwakhayo i converter zenze indawo olungalinganiyo.

Ukuseta lisisiqalo eriyali yesathelayithi akudingi utyalo ebalulekileyo ixesha namandla, ekubeni kuyimfuneko ukulungisa ezi zixhobo phantse nkqo, yaye oku lula kakhulu kwawo e balcony, okanye nje phezu kodonga ekhaya. Kwakhona, le divayisi inzuzo enkulu: zonke kwezulu zange ndikwazi ukucamngca kwipleyiti ekhanyayo. Zonke ezi imida kunye negalelo ukusasazwa ngokubanzi zezi zixhobo ukudibanisa satellite TV.

antenna Offset ukuze ezenziwe ngezinto ezahlukeneyo: iplastiki, umnatha sentsimbi, aluminiyam - ingaba zonke sisiseko imveliso imiphezulu ekhanyayo. Nganye kwezi zixhobo zinezibonelelo zayo nezingalunganga. Umzekelo, eriyali ukusuka yeplastiki baphenjelelwa ngamandla obushushu, kodwa lula kakhulu ubunzima kunye lula ukufaka. Steel, phezu koko, kuba nzima, kodwa Lomelele yaye athembeke. Xa i-eriyali yale ezibonakalayo ipropati leyo iba nefuthe elibi kwi ulwamkelo - ke umhlwa ngokuhamba kwexesha.

Imarike mihla iya kukunika uluhlu olubanzi iimveliso, ngoko uyakwazi ukukhetha okulungileyo indlela kwimeko ethile.