The current cablling in the house, one is RG6 cable which reads "RG6 2200 MHZ E113333A 18 AWG Type CM, CL2 or CATV (UL) C(UL) Type CMG" the other cable is black with no writing but seems to be the same deminsions. I know RG6 18 is used and I am not sure about the othe numbers and letters...