Frequency (continuous) :138-175 MHz (8 bands) Dimensions (L x base diam.) in :256” x 2.75 Gain :6 dBd Tower weight (antenna + clamps) :43 lb. Power rating (typ.) :500 watts Shipping weight :65 lb. Impedance :50 ohms Wind rating / with 0.5 ice :150 / 125 MPH VSWR :1.5:1 or less Maximum exposed area :4.05 ft.2 Pattern :Omnidirectional Lateral thrust at 100 MPH :162 lb. Vertical beamwidth :20° Bending moment at top clamp :1090 ft. lb. Termination :Recessed N Female 7-16 DIN-F opt.