Hy-Gain HAM-IV

HAM-IV Antenna Rotator

The HAM-IV is the most popular rotator in the world! It is designed for medium sized communications arrays of up to 15 sq. ft. wind load area. Low temperature grease permits normal operation down to -30°F. New alloy ring gear gives extra strength up to 100,000 PSI for maximum reliability. The indicator potentiometer leads have ferrite beads to reduce RF susceptibility. For convenience a Cinch® plug connector is used at the rotator plus an 8-pin plug at the control box. Dual 98 ball bearings race for load bearing strength and electric locking steel wedge brake prevents wind induced antenna movement. North or South center meter scale. Maximum mast size: 2.063 in. Specifications: Wind Load cap.(inside tower) 15 square feet; Wind Load (w/mast adapter) 7.5 square feet; Turning Power (inch lbs.) 800; Brake Power (inch lbs.) 5000; Brake Construction Electric Wedge; Ball Bearing Assembly Dual race/98 ball bearings; Mounting Hardware Clamp plate/steel U-bolts; Control Cable Conductors 8; Shipping Weight (lbs.) 24; Effective Moment (in tower) 2800 ft/lbs.