释义 |
RG (Radio Guide) The RG numbering system of coaxial cable (coax) refers to the fact that the RF (Radio Frequency) signal is guided down the center conductor of the cable system. The RG numbering system dates to WWII United States military specifications and has no real contemporary significance other than type designators. Each RG number does, however, specify impedance, core conductor gauge (AWG) and type, outside diameter (OD), and other physical attributes of the cable. Table R-2 compares example coaxial cables. See also coaxial cable. |