A fine azimuth adjustment tool and method for a satellite antenna system having a clamp with opposing jaws for clamping around the mast pipe, a lever connected to the clamp for opening and closing the opposing jaws; a cam with a protrusion engaging a formed slot in the mast clamp when said opposing jaws are closed, the protrusion rotating the mast clamp when the cam is turned, the protrusion in the slot holding the mast clamp to the mast pipe at a desired fine tuned azimuth position while the mast clamp is tightened and secured to the mast pipe.