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. New low temperature grease permits normal operation down to -30 degrees F. New alloy ring gear gives extra strength up to 100,000 PSI for maximum readability. New indicator potentiometer, new ferrite beads reduce RF susceptibility, new 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 wede 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.
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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/96 ball bearings
Mounting Hardware Clamp Plates/Steel U-Bolts

Control Cable Conductors
Shipping Weight 24 pounds
Effective Movement (in tower)

2800 ft/lbs.

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  • Manufactured by: HYGAIN

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