NORM'S ROTOR SERVICE TM

 

 Ham IV Rotator,  110V - 15 sq. ft. Wind Load

The HAM-IV is the most popular rotator in the world! It is designed for medium communications arrays of up to 15 square feet wind load area. 

bulletNew low temperature grease permits normal operation down to -30 degrees F.
bulletNew alloy ring gear gives extra strength up to 100,000 PSI for maximum readability. 
bulletNew indicator potentiometer, 
bulletnew ferrite beads reduce RF susceptibility, 
bulletnew cinch plug connector plus 8-pin plug at control box.

The HAM-IV has dual 98 ball bearing race for load bearing strength and electric locking steel wedge brake prevents wind induced antenna movement. North or South center of rotations scale on meter, low voltage control maximum mast size of 2 1/16. It operates at 110V.

HAM-IV Rotator Specifications
Wind Load Capacity (inside tower) 15 square feet
Wind Load (w/ Mast Adapter) 7.5 square feet
Turning Power 800 pounds
Brake Power 5000 pounds
Brake Construction Electric Wedge
Bearing Assembly Dual race/98 ball bearings
Mounting Hardware Clamp Plates/Steel U-Bolts
Control Cable Conductors 8
Shipping Weight 24 pounds
Effective Moment (in tower) 2800 ft/lbs.

 The effective moment, of an antenna is defined as the turning radius times the mass (or weight) of the antenna and is expressed in ft.-lb.

 

        
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