Shakespeare Classic 3' AIS AntennaThe Shakespeare Classic 3' AIS Antenna is built with extra bandwidth for all popular AIS transceivers and optimizes communication performance over VHF marine frequencies. With a lightweight, low-profile stainless steel body and 36" whip, this 3' antenna is designed for masthead mounting to enhance transmission quality.Features: Optimizes Communication Performance Over VHF Marine Frequencies; Designed Specifically For AIS Transceivers; Low-Profile Stainless Steel Body and 36" Whip; Built With Extra Bandwidth For All Popular AIS Transceivers; Lightweight; Stands At 3' Tall; Designed For Masthead Mounting To Enhance Transmission Quality; Sealed, Tin-Plated Copper Wire Coil; SO-239 Connector; Mount: Stainless Steel "L" Bracket Supplied; Automatic Identification Systems (AIS); 2 Year Warranty; Specifications: Height: 3ft; Length: 36in; Impedance: (Ohms): 50; Max Input (Watts): 50; Frequency: VHF Marine Band; Bandwidth: 7 MHz; SWR: 1.5:1 @ 156.8 MHz; Gain: 3 dB; Polarization: Vertical; Radiation Pattern: Omni-Directional; Termination: S0-239 Connector; DC Ground: NO;