Shakespeare® 5247-A Lift-N-Lay Whip 3dB VHF Marine Antenna 3dB VHF Powerboat/Sailboat masthead antennas are designed for mast mounting on sailboats or for smaller craft that "heel" on the waves. Sending out a broader signal than a 6dB antenna and ensuring better signal dispersal in rough seas (but less range). Flexible whip styles provide the best horizon-to-horizon coverage.Stainless steel finish and ferr ...