Shakespeare 4078-20-ER 20' Extension Cable Kit f/VHF, AIS, CB Antenna w/RG-8x & Easy Route FME Mini-End4078 20 ER 20' Extension Cable Kit for VHF, AIS, CB Antenna with RG 8x & Easy Route FME Mini End The cable that connects your antenna to your radio can make or break signal quality literally. Shakespeare offers a range of coaxial cables tailored to the needs of marine communications, and to withstand the rigors of the boating environment. Features: 20' Length White In fact, the cable connecting the antenna to the radio affects the signal quality.