The 5208-3 Classic 50 watt, 9dB gain 3-section vertical 23a(tm) tall commercial VHF marine band antenna features Phased 1/2 wave elements in a collinear array with a coaxial choking sleeve to suppress cable radiation. Constructed with brass and copper elements the 5208-3 is exceptionally lightweight but rigid enough to stay erect in rough seas. Chrome plated brass ferrules with 1"-14 threads at the bottom and white coated antenna with a durable high gloss finish will ensure lasting beauty and provide years of service. Includes 20 feet of side-fed RG58 coax cable & PL259 connector. Recommended mounts: 409-R or 410-R This product ships in approximately 1 days