Shakespeare Style 5911 THE STOWAWAY(TM) Emergency VHF Flex Antenna Unity GainLOADED 1/4 WAVE WHIPComes packed in a 12(TM) weather-resistant, plastic tube which can (TM)stow away(TM) in an easy-to-reach location for instant emergency capability if your main antenna becomes broken or disabled. Complete with 12' cable, connector, and rubber suction cup for fast, easy mounting to any smooth horizontal surface.Flexible vinyl outer covering10(TM) overall lengthVelcro strips for storage includedTechnical Specifications:Frequency:VHF Marine bandBandwidth:N/ASWR:Adequate across Marine Band. Precise SWR depends on antenna locationImpedance:(Ohms): 50Gain:UnityMax Input (Watts):25DC Ground:YESTermination:12' RG-58 cableHeight (feet):10Polarization:VerticalRadiation pattern:Omini-directional