Amplifier for antenna TV

M'zaka zathu zamakono zamakono, madzulo a banja pa TV akuchepa pang'onopang'ono m'mbuyomo. Koma ngakhale lero kwa anthu ambiri TV imakhala yokha pawindo pa dziko lapansi komanso njira yopangira nthawi yawo yopuma. Ndipo ndi zovuta zingati zomwe zimayambitsidwa ndi chithunzi chosawonetsedwa bwino cha televizioni - chosasunthika, choyandama, chikugwedezeka ku pixel yapadera ... Nthawi zambiri, mavutowa amachiritsidwa mosavuta - kugula amplifier yapadera pa antenna ya TV. Momwe mungasankhire ndi kukhazikitsa zowonjezera pa antenna ya TV , tiyeni tiyesere kuzilingalira pamodzi.

Kodi mungasankhe bwanji pulogalamu yamakina pa TV?

Msika wa lero, pali mitundu yambiri yosiyanasiyana ya ma TV amplifiers omwe amatha kuona kuti ndi kovuta kusankha chomwe chili choyenera. Ndipotu, chirichonse chimakhala chophweka kwambiri - kuti chisankho chokwanira ndi chokwanira kudziwa pang'ono chabe magawo:

1. Mtunda woyandikana ndi malo omwe ali pafupi nawo umatulutsa chizindikiro cha televizioni. Malinga ndi mtunda uwu, chinthu chokulitsa cha amplifier chimasankhidwa. Mtunda wotalikira ku siteshoni yotumizira ikhoza kukhala mwa dongosolo la makilomita 150. Ndi mtunda wa makilomita osachepera 10, amplifier sakufunika konse - ndizotheka kusankha antenna yabwino TV. Ndizolakwika kwambiri "kukhala wonyada" ndi kugula zowonjezera, ndi chinthu chokwanira kuposa chofunika - zipangizo zoterezi zimakhala ndi zofuna zawo zokha ndipo m'malo mwake zimakhala ndi chithunzi chapamwamba kwambiri, pamapeto pake, zitha kusokonezedwa mwatsopano.
2. Maulendo osiyanasiyana omwe chizindikirocho amachokera ndi mita, decimeter, ndi zina zotero. Njira yabwino yothetsera vutoli ndi kukhazikitsa bwalo lamilandu lopangira mabotolo kuti lizitha kulandira mafunde afupipafupi. Koma zotsatira zabwino kwambiri zidzatengedwa mwa kukhazikitsa njira yopapatiza yamagetsi yomwe ikugwira ntchito mu mtundu wina.
3. Mtundu wa ma antenna a TV. Mwachitsanzo, pa ma televizioni a mtundu wa trellis, chizindikirocho chikuwonjezeka ndi chithandizo cha swa amplifiers opanga 49-790 MHz. Koma maimboni otchuka kwambiri a TV Locus amagwira ntchito bwino ndi LSA amplifiers.
4. Posankha, nkoyenera kumvetsera phokoso la phokoso la amplifier - yaying'ono iyi, bwino chithunzicho chidzakhala pamasewera a TV.

Kodi ndimayika bwanji choyimitsa nyenyezi kwa TV?

Kuyika zowonjezera zamakono zamakono za TV ndizosavuta kuti ngakhale munthu kutali kwambiri ndi sayansi yailesi akhoza kuchita izo. Mphamvu yamagetsi imaperekedwa kwa amplifier, kudzera momwe amplifier imagwirizanitsidwa ndi magetsi. Mphamvu yogwiritsira ntchito chipangizo choterocho ndi yaing'ono ndipo nthawi zambiri imakhala ya dongosolo la 10 W. Mukamagwiritsa ntchito pulojekitiyi pamagetsi, chojambula chogwiritsidwa ntchito chikugwiritsidwa ntchito pogwiritsa ntchito adapitata yapadera. Pogwiritsira ntchito chipangizo chomwechi, amplifier imalandira mphamvu mwachindunji pa chingwe cha coaxial, panthawi yomweyo ndi chizindikiro cha televizioni. Adapitata iyi ili ndi zotsatira ziwiri: imodzi imagwirizanitsa chingwe kuchokera ku TV, ndipo zina zimagwirizanitsidwa ndi makina a TV, pomwe adaptayo imagwirizanitsidwa ndi mphamvu zapakhomo.

Mukasankha malo oti muyambe kuyimitsa nyanga, kumbukirani kuti pafupi kwambiri ndi antenna, chizindikirocho chidzakhala bwino. Pankhaniyi, amplifier ayenera kutetezedwa mokhazikika ku chikoka cha mlengalenga. Pogwiritsira ntchito zikhomo zamkati zamakono ndi makina opanga ma TV, zowonjezera zingathe kukhazikitsidwa mwachindunji pa antenna kapena patali pang'ono.