Product Frequency Range:156-163 MHz Impedance:50Ohm VSWR:less than 1.8 Gain :2 dBi(neglect the cable length) Polarization:Vertical Radiation:Omni Lighting Protection:Direct Ground Maximum Power Input-:50 W MECHANICAL SPECIFICATIONS Antenna length:1645 mm Antenna termination:PL259 Cable Length/Type: 5m/RG-58 VHF Marine antenna,made of rubber with stainless steel bracket for an easy installation on mast top or other suitable mounting point. 5m RG-58 cable with PL259 connector make you more convenient for use. Waterproof and Corrosion Resistant,Corrosion resistant for the marine environment. Suitable for ALL MARINE APPLICATIONS: Boat, Yacht, Sailboat, RV, Motorhome, Trailer, , Go Kart and more. Color: As Shown Material: Stainless steelandplastic Package Contents: 1 x VHF Marine Antenna Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.