Frequency (continuous) :118-136 MHz Dimensions (L x base diam.) in :77 x 2.75 Gain :2.5 dBd Tower weight (antenna + clamps) :16 lb. Power rating (typ.) :500 watts Shipping weight :20 lb. Impedance :50 ohms Wind rating / with 0.5 ice :200 / 150 MPH VSWR :1.5:1 or less Maximum exposed area :1.6 ft.2 Pattern :Omnidirectional Lateral thrust at 100 MPH :62 lb. Vertical beamwidth :38° Bending moment at top clamp :117 ft. lb. Termination :Recessed N Female 7-16 DIN-F opt.