Designed to reduce signal fading in rough seas, the is one of the most-used antennas on U.S. Coast Guard vessels. This one-section antenna features a center-fed 1/2-wave coaxial sleeve; brass and copper elements; and a chrome-plated brass ferrule with standard 1"-14 thread. A 15' RG-58 cable and PL-259 connector are included. Suggested for use with Shakespeare 4187 or 5187 ratchet mounts (each sold separately). Two-year limited warranty. Model#: 396-1.SPECIFICATIONS:* Height: 5'* Max. Input Power: 50 watts * Gain: 3 dB* Frequency: VHF Marine Band* Bandwidth: 5 MHz within 2.0: 1 VSWR* SWR: Nominally 1.5: 1 at 156.8 MHz* Polarization: Vertical* Impedance: 50 ohms* No DC Ground - Antenna will read "open" on continuity test Brass and copper elements for max. performance Chrome-plated brass ferrule; standard 1"-14 thread 15' RG-58 cable and PL-259 connector included | Classic 5' VHF Antenna