Inde. Komabe, makina oyambirira a tinyanga ankagwiritsa ntchito ma feeders omwe sanali a coaxial.
Zingwe za RF coaxial ziyenera kumveka m'magawo awiri.
RF: RF imatanthawuza ma frequency a electromagnetic omwe amatha kuwulukira mumlengalenga, kuyambira 300kHz mpaka 300GHz.
RF ndi radio frequency current, shorthand ya high-frequency alternating electromagnetic wave.
Kusintha kwapano komwe kumasintha zosakwana 1000 pa sekondi iliyonse kumatchedwa low-frequency current, ndipo kumasintha kupitilira 10000 pa sekondi iliyonse kumatchedwa high{3}}frequency current. RF ndiyokwera-kawirikawiri.
RF (300K-300G) ndi bandi yapamwamba kwambiri mkati mwa ma frequency apamwamba (kuposa 10K).
Mu chiphunzitso chamagetsi, pamene panopa ikuyenda kudzera mwa conductor, mphamvu ya maginito imapangidwa mozungulira woyendetsa; pamene kusinthasintha kwamakono kumayenda kudzera pa kondakitala, malo osinthika a electromagnetic amapangidwa mozungulira woyendetsa. Izi zimatchedwa electromagnetic wave.
Mafunde a electromagnetic okhala ndi ma frequency ochepera 100kHz amatengedwa ndi dziko lapansi ndipo sangathe kufalitsidwa bwino. Komabe, mafunde a electromagnetic okhala ndi ma frequency opitilira 100kHz amatha kufalikira mumlengalenga ndikuwonetseredwa ndi ma ionosphere omwe ali m'mphepete mwa mlengalenga, ndikupangitsa kutumiza{3}}kutali.
Timatcha high-frequency electromagnetic wave with long{1}}distance transmission capabilities radio frequency (RF).
Ukadaulo wa RF umagwiritsidwa ntchito kwambiri polumikizirana opanda zingwe; makina akanema amakanema amagwiritsa ntchito kufalitsa kwa RF.
Chingwe cha coaxial: Chifukwa ma kondakitala awiri (wokonda wamkati / woyendetsa wakunja) ndi wosasunthika potsata nthaka, ndi chowongolera chimodzi chamkati chomwe chili pa axis ya kondakitala wina wakunja, amatchedwa "coaxial chingwe."
Mawonekedwe a zingwe za coaxial ndikuti gawo lamagetsi lamagetsi limatsekeredwa mkati mwa kondakitala wakunja, kulola kugwiritsidwa ntchito pama frequency apamwamba.
Zindikirani: Kondakitala wakunja wa chingwe cha coaxial ndi kondakitala komanso wosanjikiza wotchinga (amagwira ntchito ngati lupu komanso amapereka anti-kusokoneza).
Chingwe coaxial chomwe chimagwiritsidwa ntchito potumiza ma siginecha a RF chimatchedwa "RF coaxial cable."
Chizindikiro cholandilidwa ndi mlongoti chimaperekedwa kutsogolo kutsogolo kudzera pa mzere wodyetsa, ndipo kutulutsa kwa siginecha kuchokera kumapeto kumaperekedwanso ku zida zosiyanasiyana zolandirira kudzera pamzere wodyetsa.
Masiku ano, nthawi zambiri timawona maulumikizidwe ndi ma feed feeder omwe amagwiritsidwa ntchito m'makina okulitsa ma siginoloji monga-mawotchi oyambira opanda zingwe (China Mobile, China Unicom, China Telecom, etc.), tunnel, ndi zipinda zapansi.