Indlela ukukhetha ikhebula antenna

Naphezu ubiquity ithelevishini inthanethi, amakhaya amaningi namanje kukhona oyedwa noma ngisho TV eziningana. Ezinye ukubukela iziteshi etholwe owamukelayo nge-antenna ezivamile, omunye - nge-satellite dish, kahle, nakuba abanye beyijabulela izinzuzo intuthuko ngesimo ithelevishini ikhebula. Emacaleni ezimbili zokuqala, ukudluliswa isignali emthonjeni ukuze umsakazo odlala ama-ithelevishini elisetshenziselwa cable TV antenna. Ngokusobala, kusukela izici zayo kuxhomeke kakhulu izinga izithombe ezikhishwe. Kunengqondo ukuphetha ngokuthi kungase kube lula ukukala kuka endlini zisuka, ukuya emakethe noma esitolo uthenge ikhebula le-antenna? Nokho, lesi sitatimende kuphela ingxenye kweqiniso. Iqiniso lokuthi umuntu ofisa ukuthenga ikhebuli antenna, nabathengisi siyonikwa izinketho eziningana for lolu hlobo umkhiqizo. Iyiphi ukhetha?

izisekelo ezicatshangelwayo

Noma yimuphi ikhebula antenna, njengoba igama layo lisho, kuyinto angawodwa kancane komunye nomunye izintambo conductive, embozwe ezivamile ekuvikeleni ungqimba. Njengoba injongo yayo iwukuhlola ukudlulisela isiphazamiso TV eyenga ku-antenna, kusobala ukuthi inani wamanje kanye voltage zimbalwa futhi ziyantula. Ngenxa yalokho, le ntambo antenna has wokuba umbhidisi emithanjeni emincane ubukhulu. Isignali eyamukelwe imvamisa eliphezulu, futhi ngenxa ukusebenza evamile lonke uhlelo kubaluleke kakhulu ukuthi ukubaluleka yokumelana sangaphakathi circuit umabonakude, ikhebuli antenna ayafana (ifaniswe). Nokho, inani isilinganiso multimeter Ohm akufanele kube - kuyize. Ikhebula antenna libhekene ukumelana igagasi, nokubaluleka kwalo ibalwa ifomula ekhethekile. Ukuze isignali value TV salo 75 ohms. Yingakho esiphethweni sokuthi iyiphi "extra" compounds babashayeli kubangele isignali ezengeziwe eshabalalayo. Phawula futhi okudingayo iphuzu elilodwa ngaphezulu ezibalulekile: ikhebula satellite dish - ayikhona ekhethekile, kodwa ithelevishini efanayo. Ngokukhetha ke, kufanele banamathele ezimisweni ukuthi thina give ngezansi.

Izinhlobonhlobo ithelevishini ikhebula

Ngokuvamile, Izitolo ezinkulu okudayisa ukunikela kusuka 3 kuya ku-6 izinhlobo cable TV. Eyokuqala Umehluko osobala - izindleko. Ngezinye izikhathi ukabili. Umuntu ofuna ukuba ukhethe ikhebula ezinhle kunikezwa kombuzo mayelana nezizathu lo mehluko. Zingamashumi ngempela ebalulekile.

Uma uthenga kufanele sinake ikhwalithi ukwahlukanisa. Inketho eshibhe ulula kakhulu, ukuze umugqa oluyisisekelo emgwaqweni, asikwazi indiva. Hlola Kulula kakhulu - agobe ikhebula. Uma amakhefu ukwahlukanisa, uthatha Esimweni esinjalo ke kungaba umkhawulo oqinile isabelomali.

On reception izinga kuthintwa indaba ka umqhubi isikhungo. Core kungenzeka ngokuphelele noma ithusi ngensimbi Cuprum overmolded. Inketho yokuqala luncanyelwa Nokho, kuyabiza. Ngezinye izikhathi ungase ubone umbala steel core - is tinning (tin enamathela) osetshenziselwa ukuvikelwa namachibi.

Isendlalelo elilandelayo esehlanganise umqhubi ezimaphakathi ukwahlukanisa yayo - kuyinto esibukweni. Kuyinto ungqimba ucwecwe. Singasho extruded noma basonta. Kuyadingeka ukuze kuvinjelwe ukuphazamisa mutual babashayeli. Nakuba zikhona izinguquko ikhebula ngaphandle ungqimba, khona layo kuwubufakazi ongaqondile ikhwalithi yemikhicito.

Ngaphezu kwalokho, umqhubi yesibili - eluka. Siqukethe eziningana izingcwecwe zensimbi izinwele, nakanjani ngokukhethekile. Lapho - ngcono. Ngaphezu kwalokho, kubalulekile ukuthi bangabafokazi yethusi (tin kuvunyelwe), hhayi steel.