What 3C350MCM means?

3C350MCM refers to a specific type of coaxial cable, where "3C" indicates the diameter of the cable's core conductor, and "350" represents the characteristic impedance in ohms. "MCM" stands for "thousand circular mils," a unit of measurement for the cross-sectional area of the conductor. This type of cable is commonly used in RF (radio frequency) applications, telecommunications, and broadcast systems.