Style 399-1 VHF 6dBCollinear Phased 5/8-wave with two coaxial chokes to suppress cable radiationA professional quality antenna in a pact package. This extra-duty antenna bines strength and performance for use where you really need the efficiency of a large antenna but don"t have room for one.Brass and copper elements Chrome-plated brass ferrule with standard 1"-14 thread Includes 15" RG-58 cable and a PL-259 connector Suggested mount: Style 410-R Mounting Kit for deck or side mounting Two sections: Base 75"; Tip 39" UPS shippableTechnical Specifications:Frequency:VHF Marine bandBandwidth:(within 2.0:1 SWR): 5MHzSWR:1.5:1 at 156.8 MHzImpedance:(ohms): 50Gain:6 dBMax Input (Watts):100DC Ground:YESTermination:15" RG-58 cableHeight (feet):9.5Polarization:VerticalRadiation pattern:Omni-directional Product : SHAKESPEARE VHF 9"6" 399-1 6DB Manufacturer : SHAKESPEARE ANT Manufacturer Part No : 399-1 UPC : 719441100025