Kuyini msindo isiginali ye-TV?

Lapho izinto okuyinto liphazamisane isignali ukudluliswa, futhi ngezinye ibanga elikhulu ekusakazweni umthombo Broadcasting izinga kuyoba aphansi. Ngisho nemishini yesimanje (ezinhle TV, ucingo, antenna) ayikwazi ukuqinisekisa isithombe esicacile esikrinini TV. Ezimweni ezinjalo kungcono ukuthenga msindo isiginali ye-TV, ezizohlinzeka izinga umsindo nokuphimisela ngokucacile izithombe kungakhathaliseki indawo izakhiwo kanye izimo zezulu.

Uhlelo lokukhethwa kufanele bacabangele idivayisi amandla amplifier futhi ubukhulu egumbini. izinhlelo ezinjalo ngenxa antenna kumele kusetshenziswe uma signal esikuyi abamukelayo eziningi. Asetshenziswa ukuthuthukisa amagagasi ephezulu imvamisa. Ikhwalithi ezinye izinhlelo asizayo kuncike ngokuqondile ngohlobo antenna kanye idivayisi ethola isignali.

Abanye onobuhle zenzelwe ukusebenza uma isimo sezulu sisibi. Bavikelekile ukuphazamiseka kagesi wachithwa umzimba waso, embozwe enamathela ekhethekile zokuzivikela. Ngokuvamile kukhona izikhathi lapho kudingeka ukuncibilikisa ikhebuli TV ambalwa. TV isignali amplifier kukuvumela ukukwenza nge ukulahlekelwa omncane.

Idivayisi ekhethekile ixhunywe antenna (noma lisuke limbozwe therein) futhi kakhulu ngcono izinga ukusakaza kuyinto amplifier ithelevishini. isignali zesikhulisa TV woza ezihlukahlukene zokulungisa. Njengomthetho, kuzomele ukhethe ke beqondiswa uchwepheshe kulo mkhakha. Ukusebenza kwalezi izinhlelo incike izimo reception nobuchwepheshe kuwo axhunyiwe.

Ezinye yokukhulisa umsindo zenzelwe zandisa amagagasi reception lilonke TV and cable TV inethiwekhi ukusatshalaliswa endlini. Zingasetshenziswa ezindlini ahlukene kanye Cottages ekuqhubeni inani elikhulu kumadivayisi we-TV.

Yokukhulisa umsindo angasetshenziswa njengoba izinga lokushisa lehla kusuka ^mayelana -40 C +50 ^C. Inani nomswakama isihlobo bengase bazikhandlele 98% uma ileveli thermometer 25 ° ^C.

Antenna zesikhulisa ukusetshenziswa ngabanye isiginali ye-TV yakhelwe ukwandisa izinga lapho ithola ukudluliselwa umbala nesithombe omnyama nomhlophe. It yakhelwe ukusebenza kanye ithelevishini abamukelayo zonke izinhlobo kanye amakilasi. Kuye imvamisa, antenna yokukhulisa umsindo zenziwa ukuze imitha, ne imitha futhi decimeter decimeter. Yokukhulisa umsindo kungenziwa esisogwini insika noma eduze antenna efakwe emhlabeni umamukeli ithelevishini.

Uma ngenxa yezizathu ezihlukahlukene, ayikwazi ukuxhuma ikhebula ye-TV, ikhaya antenna reception izinga lwezinhlelo ze-TV ayiyinhle, amplifier isiginali ye-TV ungakwazi ukuxazulula le nkinga. Kungasiza hhayi kuphela isiginali engalungile ukuze umsindo, kodwa lapho amagagasi ithelevishini ngokuvamile zinyamalale ngempela, kokushiya esibukweni enyakaza grey kuphela. Ixhuma lesi simiso elula ngokuhlanganyela antenna kuholela ikhwalithi yesithombe esikrinini izinze. Nganoma yisiphi isikhathi futhi kungakhathaliseki ukuthi izimo zezulu, amplifier isignali antenna kuqinisekisa isithombe esicacile kanye umsindo okuhle.