A.同軸電纜傳輸 B.光纜調(diào)制傳輸 C.光纜基帶傳輸 D.光纜數(shù)字傳輸
A.(0.5-1Vpp,0.8Vpp) B.(0.5-0.8Vpp,1Vpp) C.(0.5-2Vpp,1Vpp)
A.(0.5-2Vpp,1Vpp) B.(0.1-0.5Vpp,0.5Vpp) C.(0.5-1Vpp,1Vpp)