Sechikamu chakakosha chekutaurirana pasina waya, basa rekutanga reantenna kupenya nekugamuchira mafungu eredhiyo.Basa ndere kushandura iyo electromagnetic wave kubva pachiteshi cheterevhizheni kuita chiratidzo chemagetsi kune yakakwira frequency.
Mashandiro anoita antenna yeTV ndeyekuti kana mhepo yemagetsi ikaenda kumberi, inorova antenna yesimbi, inocheka tambo yemagineti, uye inogadzira simba remagetsi, inova chiratidzo chemagetsi.
Sechikamu chakakosha chehurongwa hwekutaurirana, kuita kweantenna kunobata zvakananga index yehurongwa hwekutaurirana.Mushandisi anofanira kutarisisa kuita kwayo kutanga pakusarudza antenna.
Chimwe chezviratidzo zvikuru zveantenna ndiyo pfuma, inova chibereko chegwara rinotungamirira uye kushanda zvakanaka, uye ndiko kutaura kwehukuru hweantenna radiation kana mafungu akagamuchirwa.Sarudzo yekukura kwekukura kunoenderana nezvinodiwa zve iyo system dhizaini yeredhiyo wave yekuvhara nzvimbo.Zvichitaurwa zviri nyore, pasi pemamiriro mamwe chetewo, iyo inowedzera pfuma, kureba kweredhiyo wave kuparadzira chinhambwe.Kazhinji, iyo base chiteshi antenna inotora yakakwira kuwana antenna, uye iyo mobile station antenna inotora yakaderera kuwana antenna.
TV inogamuchira antenna inowanzoita mutsara antenna (setiraiti inogamuchira antenna ndeyepamusoro antenna), zvinoenderana neiyo frequency renji yeinogamuchirwa yakakwirira-frequency siginecha inogona kukamurwa kuita VHF antenna, UHF antenna uye yese-channel antenna;Zvinoenderana neiyo frequency bhendi hupamhi hweiyo antenna inogashira, yakakamurwa kuita imwechete-chiteshi antenna uye frequency antenna.Zvinoenderana nechimiro chayo, inogona kukamurwa kuita inotungamira antenna, mhete antenna, fishbone antenna, log periodic antenna zvichingodaro.
Iyo yakavhurika-yedunhu TV chirongwa chinogashirwa netambo TV system inonyanya kusanganisira maviri frequency mabhendi: ⅵ (chiteshi 1-4) uye ⅷ (chiteshi 6-12) muVHF bhendi uye UIV (chiteshi 13-24) uye UV (chiteshi 25- 48) muUHF bhendi.MuVHF frequency bhendi, iyo yakakosha chiteshi antenna inogamuchira chiratidzo cheTV cheimwe chiteshi inowanzosarudzwa, uye nzvimbo yekugamuchira yakanakisa inosarudzwa kuti igadzirwe, kuitira kuti ive nemabhenefiti ekuwana yakakwira, kusarudza kwakanaka uye kutungamira kwakasimba.Nekudaro, iyo partial-bhendi antenna inoshandiswa mu ⅵ uye ⅷ uye ese-channel antenna inoshandiswa muVHF ine yakafara frequency bhendi uye yakaderera kuwana, iyo inokodzera chete kune mamwe madiki masisitimu.MuHF frequency bhendi, maviri efrequency bhendi antennas anogona kazhinji kugamuchira zvirongwa zveterevhizheni zvezviteshi zvakati wandei zvakapatsanurwa zvakanyanya.
Nguva yekutumira: Aug-25-2022