Style 420 VHF 3dB Center-fed 1/2-wave coaxial sleeve Shakespeare"s most economical 5" antenna package. The 420 is a great, basic 3dB antenna for day-to-day cruising in calm to moderate seas. The antenna has an integral polycarbonate Lift N Lay mount for deck mounting, and comes with a leveling plate and installation hardware. Use a Style 4000 Angle Bracket (sold separately) for side mounting. Brass and copper elements Includes 15" RG-58 cable and a PL-259 connector Integral deck mount One section Technical Specifications: Frequency:VHF Marine bandBandwidth:(within 2.0:1 SWR): 5MHzSWR:1.5:1 at 156.8 MHzImpedance:(ohms): 50Gain:3 dBMax Input (Watts):50DC Ground:NOTermination:15" RG-58 cableHeight (feet):5Polarization:VerticalRadiation pattern:Omni-directional