Harvest Wireless V2000 Tri-Band Base Antenna Frequency (MHz): 52-54/144-148/440-450 Gain: 2.15dbi(6m)/6.2db(2m)/8.4db(70cm); power rating: 150 watts Impedance: 50 ohm; visor: 1.5:1 (typical); element phasing: 1/2l/2-5/8l/4-5/8l Max wind rating: 112 m.p.h.; mast dia. Acceptance: 1.2 to 2.4 inches Length/weight 8.3 ft./2.6 lbs., connector: uhf (so 239 female)