RadioShack Outdoor Scanner/Ham Discone Antenna 20-043 Omnidirectional and rugged stainless steel construction, Resonator and tunable whip for best 50MHz performance Wide 25-1300MHz coverage, Also for transmitting on 50, 144, 220, 440, 900 and 1296MHz ham bands Fits mast up to 1.5" in diameter Accepts PL-259 connector Height 44 inches