Shakespeare Classic Vhf AIS Antenna 0.9M Blue Bottle Marine Shakespeare 427 N 3dB VHF Antenna 1.5m 4Boats Shakespeare VHF Radio Antenna Classic Series 5101 Shakespeare Stainless Steel VHF Whip Antenna 1m Sealutions Marine. Shakespeare Extra 3 dB VHF whip antenna, 0. 9 metre (3 ft), stainless steel extra heavy duty, fully sealed and built for reliable marine VHF communications. Length: 0. 9 metre (3 ft) stainless steel whip Gain: 3 dB for extended VHF range Mount Type: Threaded mount 14 1. 25 mm RH fits standard VHF bases Connector: Integral SO239 base for use with PL259 coaxial plugs Construction: Full stainless steel, corrosionresistant and capable of handling impact Operating Range: 156 162 MHz; Impedance: 50 Waterproofing: Fully sealed base and coax transition for reliable marine use