Frequency Range: 156-163 MHz. Covers all VHF marine band frequencies. Steel Wire Radiating Element Material. Antenna Height: 15 inches; Antenna Connector: PL-259; VSWR: less than 1.5; Gain: 2.5 dBi; Maximum Power Input-watts: 50W Easy Install & Assembly - 16.4ft RG58 coaxial cable (SO239 to PL259 connector) & L-shape mounting bracket & U-bolt (2pcs) & Nut Lock Washer (2 size) included. Wide Applications - Excellent for working with Midland Uniden Cobra Icom marine radios on boat, pontoon, sailboat or yacht. TWAYRDIO has always been committed to the "Quality and Performance First" philosophy, using high quality materials to produce antennas with high reception and transmission, ensuring that our customers receive reliable and durable products. TWAYRDIO has always been committed to the "Quality and Performance First" philosophy, using high quality materials to produce antennas with high reception and transmission, ensuring that our customers receive reliable and durable products.