Uthini umahluko phakathi kwe-50 ohm kunye ne-75 ohm coaxial cable?

Uthini umahluko phakathi kwe-50 ohm kunye ne-75 ohm coaxial cable?

Molo, yiza ukudibana neemveliso zethu!

Uthini umahluko phakathi kwe-50 ohm kunye ne-75 ohm coaxial cable

Intambo ye-50 Ω isetyenziselwa ukuhambisa iimpawu zedatha kwiinkqubo ezimbini zonxibelelwano.Imimandla yesicelo sayo ibanzi ngokwentelekiso, kubandakanywa uvavanyo lwesignali, inethiwekhi ye-Ethernet backbone yekhompyutha, intambo yokuphakela i-eriyali engenazingcingo, i-GPS yokubeka i-satellite ye-antenna feed cable kunye nenkqubo yefowuni ephathwayo.Intambo ye-75 Ω isetyenziswa kakhulu ukuhambisa iisignali zevidiyo.Ukusasazwa komqondiso weTV ngentambo sisicelo esiqhelekileyo.Ngeli xesha, izihlanganisi zohlobo lwe-F ziqhele ukusetyenziswa, ezifana noqhagamshelo lwe-eriyali ye-TV yasekhaya.Esinye isicelo kukuhambisa imiqondiso yevidiyo phakathi kwesidlali seDVD, VCR, esweni ukhuseleko kunye nezinye iinkqubo kunye nezixhobo.Ngeli xesha, ngokuqhelekileyo kubhekiselwa kuyo njenge-audio/video (A/V) intambo kunye nesinxibelelanisi.Ngeli xesha, izihlanganisi ze-BNC kunye ne-RCA zisetyenziswa ngokuqhelekileyo.Iintambo ze-75 Ω zihlala ziziko ezomeleleyo intambo yomqhubi weziko eliziko i-RG59B/U kunye nentambo yomqhubi weziko elixineneyo RG59A/U.Intambo ye-75 Ω isetyenziselwa ikakhulu usasazo lwesignali yevidiyo, ngelixa intambo ye-50 Ω isetyenziselwa ukuhanjiswa komqondiso wedatha.


Ixesha lokuposa: Jan-30-2023