Antennas yeTV yakazivikanwa kubva pakutanga kweterevhizheni, nokuti pasina tina terevhizheni haibati chiratidzo. Pakupedzisira, vanhu vaishandiswa mudzimba dzomukati kana dzokunze dzakabatana ne "bhokisi" tambo. Iyi teknolojia yekufananidzira yekubata zviratidzo kubva kune terevhizheni iri pedyo iripo nhasi. Panguva imwecheteyo, nhamba yemigwagwa yakanyanya kuderera, uye unhu hwechifananidzo unowanzosiya zvakawanda zvingadiwa.
Kuti agadzirise matambudziko aya, vanhu pakupedzisira vakasika TV yepaTV. Munyaya iyi, haisisiri analog, asi dhidhijiti yejedi haipfuuri nepamusasa weTV, asi kuburikidza nema satellite achibhururuka kune imwe nzvimbo. Izvi zvave zvinonakidza zvinodhura, zvisingawaniki kune vose.
Kufambira mberi kwakaramba kumira, uye imwe nzira yakawanda yehuterevhizheni yakasikwa - digital. Inosanganisira nzira dzakasiyana-siyana dzekutsvaga deta:
- kuburikidza neshongwe yeTV (pasi);
- kuburikidza ne cable (cable digital TV);
- kuburikidza nesataneti;
- kuburikidza neIndaneti kuburikidza nemichina yakakodzera (IP-TV).
Mumwe nomumwe wavo anopa ruzivo rwemazana emitambo yepaTV uye yekunze mune zvehutano hwakanaka.
Shanduro yeSatellite yeTV
Kana zvisati zvaitika, iyo dish yepa satellite yakange iri yepamusoro uye takashuva kuona "mahwendefa" pane dzimba dzevanhu vapfumi, nhasi kune kuoneka kunowanikwa mumatengo avo, sechikonzero cheterevhizheni yakareba yakawedzerwa.
A good satellite dish kuti TV inobata nhamba huru yemigwagwa. Izwi rehutano hwakanaka. Iyo inogona kuderedzwa chete nekudonhera kwenguva refu mumhando yemvura kana chando.
Digital antenna yeTV
Sezvatotaurwa pamusoro apa, pane zvingasarudzwa zveterevhizheni , zvakatarisana, kune imwe neimwe pane rudzi rweantenna. Nzira yekusarudza antenna yeTV, apo sarudzo yacho yakazara zvikuru? Iwe unogona kuisa maitiro nemaitiro akawanda. Saka, munzvimbo yekugadzirisa inogona kuva:
- indoor antenna;
- kunze antennas.
Gumba, sezvinojekesa kubva kune zita, rakaiswa mukati mekudaidzwa kunzvimbo dzakachengetedzwa. Munharaunda uye misha yezororo rekumusha kwemasango, hazvina kukodzera kumirira zvifananidzo zvepamusoro zvakadai kubva kune zvakadaro. Kuti uvandudze unhu hwemufananidzo, zvinoshandiswa kushandisa nzvimbo dzomukati nemagetsi eTV.
Kunze antenna zviri nani zvikuru mumapiramu uye zvinogona kushandiswa pose pose. Zvakanyanya kuoma kuisa antenna yakadai, uye mamwe ruzivo anodikanwa, asi zvakakosha zvakakodzera kukosha.
Nechimiro chechiratidzo chekusimudzira, antenna akaparadzana mu:
- passive;
- inoshanda.
Antennas masikati anogamuchira uye anowedzera chiratidzo nokuda kwechimiro chavo chemagetsi. Panguva imwecheteyo, havakwanise kugadzirisa zvinhu - kwete transistors kana microchips. Pamusana peizvi, mazwi akadai haatauri chero ruzha rwakawedzerwa kana runyararo mumushumo wakagamuchirwa, izvo zvinogara zvichienderera mberi nemagetsi. Zvisinei, havagoni kugara vachivimbisa kugamuchira kwakanaka kwepamusoro pamusana pekukwanisa kuzvidzivirira.
Kushandisa antennas kukurudzira zviratidzo zvakagamuchirwa kwete chete nekuda kwomufananidzo wayo, asiwo neyakagadzirwa kana kuti yakawanikwa pane electronic amplifier. Inopa antenna akadaro kubva mumakumbo. Icho chinokonzera kupindira uye ruzha mune dzimwe mamiriro ezvinhu: kana mune imwe nzvimbo isina mvumo yechokwadi, kana mumiririri wemagetsi ane kukura kwekuwedzera kana kuti amplifier inobudiswa nemunhu asingazivikanwi akagadzira, kureva kuti, ine hutsika hwakanaka.
Maererano nemagetsi akawanikwa, antenna ma digital:
- channel;
- banded;
- all-wave.
Nzira dzinoshandiswa dzinogamuchira nzira dzakasiyana dzakasiyana-siyana uye hadzisi kushandiswa nevataridzi vese, asi panzvimbo dzakasiyana.
Range antennas inoshandiswa mumamiriro ezvinhu apo zvakakosha kutora MB chete (mamita mazai) kana kuti DMW (decimeter waves). Saka muRussia chete DMV-range inoshandiswa, uye antenna ari kushanda munharaunda iyi yakakwana.
Zvose-wave antennas panguva imwe chete inogamuchira zvose zviri zviviri. Kazhinji kacho, vaterevhiri veTV vanotenga mabheti akadaro, nokuti vanoda kutora nzira, kuparidzirwa muMV neDMV-band.