Why is solid copper conductor preferred over copper clad steel conductor in closed circuit television applications?
The copper clad steel conductor was specifically developed for use in coaxial cables intended for RF use. RF implies that the signal being carried by the coax is of “high frequency”. All conductors that carry alternating currents have losses that are associated with the conductor’s resistance. Due to skin effects, the resistance increases when an alternating current flows in it. This effect causes the current to flow more in the outer region of the conductor and not in the centre, and is due to inductive effects. This effect also increases with the magnitude of the frequency of the alternating current. So much so that at RF, only the very thin surface layer is useful for carrying currents.
