The for fixed-mount radio features a 15' RG 58 coax with molded PL 259, dual-swivel corrosion-resistant nylon base, and 6dB gain. Coax cable and connectors are compatible with Cobra Marine and all other VHF radios. Extended frequency range up to 162 MHz for VHF and NOAA Weather. Dual-swivel corrosion-resistant nylon base 6dB gain Extended frequency range up to 162 MHz for VHF and NOAA weather | 8' Marine Fiberglass VHF Antenna