Covers all marine band frequencies | Heavy-Duty Fiberglass Construction | Suitable for marine use | 17ft RG58A/U coaxial cable with PL-259 | Adapter Plate For Sony | Heavy-Duty Fiberglass Construction | Gain: 3 Db | Stainless-Steel Hardware | Nylon Ratchet-Mount For Easy Lay-Down | Adapter Plate For Sony | Heavy-Duty Fiberglass Construction | Gain: 3 Db | Stainless-Steel Hardware | Nylon Ratchet-Mount For Easy Lay-Down