Antenna TV: ngezandla zakhe enze akunzima kangako

ngezinye izikhathi Bonke abantu uthole iziteshi ejwayelekile nesithukuthezi-TV futhi lapho bexhuma ngokwakho satellite dish noma cable TV, okuyinto luhambisana nomthwalo izindleko ezengeziwe. Ngokuvamile kufanele ukhokhele ikhebula noma isidlo uxhumano (ngaphandle mhlawumbe ngesikhathi isitokwe e inkampani) kanye njalo ngenyanga ukukhokhela into ukuthi uyenzele yokudlulisela. Ngezinye izikhathi isimo sezimali ayikuvumeli izakhamuzi ukukhokhela izinsiza ezinjalo. Nangu eza ukusiza ulwazi electronics kanye umsakazo zobunjiniyela. Kulesi ukubuyekeza, uzofunda indlela yokwenza antenna TV ngezandla zakhe.

Udinga ukwakha i-antenna

Uma uhlala e-ulayini lasisusela ekufundzeni teleradiovyshki, antenna, okuzoxoxwa, kuba impela okuwusizo. ukwakhiwa self-ezenziwe ngamunye akwazi ngempela ukunikeza inombolo elikhulu iziteshi ze-TV, noma alikho izinga elihle kangaka. Ukuze uphendule umbuzo kanjani ukudala i-antenna TV ngezandla zabo, ngaphandle ulwazi olujulile ikakhulukazi electronics kanye izinto ilula kakhulu futhi ezishibhile. Sidinga: wire yethusi nge ububanzi amamilimitha angu amabili kuya kwamathathu ubude futhi amasentimitha ayisikhombisa, ucezu fiberglass double Emaceleni, nengxenye-imitha coaxial TV ikhebula ne impedance ka ohms ayisikhombisa nanhlanu, kanye F-isixhumi. Ukuthinta lolo luthi Kulula ukuthola amasignali e uhla UHF kanye ngokwanele enamandla isignali - wave imitha ububanzi. Njengoba wire yethusi awunankinga wire esiqinile wiring.

Ukusebenza izintambo

Phakathi impendulo yokusesha ukuze umbuzo mayelana indlela yokwenza antenna TV ngezandla zakho, uzodinga ukubhekana izintambo. Esimweni ukuthi izintambo ambalwa, bese, ngomusa ukusebenza ummese, uyonquma inkatho endleleni oyedwa babashayeli, kuyilapho ukuqikelela ukuthi kulimaze ukwahlukanisa, nakuba lokhu akudingekile - izinto nangokuvikela izodlala indima luyingxenye yobuhle. Ngiyavuma, ukubukeka hhayi kumnandi nje wire elingenalutho. Ngokuvamile, antenna TV, ngezandla zakhe wenza, kungenziwa exhunywe ngezithukuthuku aluminium wire. Kodwa kubalulekile ukuqonda ukuthi kubalulekile ukuxhuma uxhumano threaded nge oxhumana nabo transformer ibhodi ezifanayo. Kubalulekile ukukhumbula ukuthi indlela yokuphepha nut asisho uthinte ucwecwe transformer, kungenjalo kubalulekile ukusebenzisa Washer nangokuvikela noma ukunciphisa ucwecwe. Kuleso simo, uma wire wasala ngaphandle ukwahlukanisa, kungenzeka ngenxa ubuhle nokuhlonipha imithetho ingaphakathi wagqoka vinyl chloride yakhe ipayipi.

Sinikeza shape ukwakhiwa yethu

Lokho antenna-TV, enziwe ngezandla zakhe, wathatha ngesimo embuthanweni, kuyinto ebhakedeni ngempela efanelekayo kapende noma yiphi into bunjwa cylindrical. Kubalulekile ukukhumbula ukuthi ububanzi we umbuthano kufanele ibe mayelana amabili namashumi amabili kwangu nakuba ingenziwa, ezimbalwa amamilimitha angu iphutha ayibalulekile. Ukuze sikhiqize ibhodi ofanayo transformer - umsebenzi kunalokho nzima, uma iqhathaniswa umsebenzi langaphambilini ku-antenna. Imali is arcade kwenziwa kusukela fiberglass isigamu milimitha uqweqwe usayizi 25x30 amamilimitha angu.

isiphetho

On lo mbuzo zendlela yokwenza antenna angabhekwa ixazululwe. It uhlala kuphela uma sikubeka indawo oyifunayo bese uqalisa ukuze usethe iziteshi ze-TV. Manje njengoba siyazi ukuthi isakhiwo ukubonisa iziteshi ze-TV, uyokwazi ukuphendula umbuzo zendlela yokwenza i-antenna ukuze umsakazo we ngezandla zakhe. Inhlanhla ubuka umabonakude entsha, self-ezenziwe, antenna!