An RF cable is a type of electrical cable meant for transferring your RF signal to the radiating portion of the radio system.

Attenuation in a coaxial cable depends on the frequency and cable length itself. We have to take into account the coaxial cable length since radio waves are tuned wavelengths of energy. RF coaxial cable attenuation occurs when signals travel through cables but not all of the signal reaches the other end of the RF cable. Signal loss increases with the length of the cable ( i.e. the longer the cable, the greater the loss of RF energy that will occur in the coaxial cable).